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  • Inorganic Chemistry  (3,890)
  • General Chemistry  (3,654)
  • Oceanography  (944)
  • Pollution  (909)
  • LUNAR AND PLANETARY EXPLORATION
  • Niederschlag
  • 2020-2022  (1,826)
  • 1930-1934
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  • 1
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    The seismological signature of cyclonic storms through the ears of a sensor array (2021)
    Details
    Publication Date: 2021-03-29
    Description: Under certain conditions, ocean surface gravity waves (SGW) interact with the seafloor underneath to trigger relatively faint but measurable seismic waves known as ocean microseisms. Cyclonic storms (e.g. hurricanes, typhoons) wandering over the ocean are major (non-stationary) sources of the former, thus opening the possibility of tracking and studying cyclones by means of their corresponding microseims. For this purpose, we identified storm-related microseisms hidden in the ambient seismic wavefield via array processing. Polarization beamforming, a robust and well-known technique is implemented. The analyses hinge on surface waves (Love and Rayleigh) which, in contrast to P-waves, are stronger but only constrain direction of arrival (without source remoteness). We use a few land-based virtual seismic arrays surrounding the North Atlantic to investigate the signatures of major hurricanes in the microseismic band (0.05-0.16 Hz), in a joint attempt to continuously triangulate their tracks. Our findings show that storm microseisms are intermittently excited with modulated amplitude at localized oceanic regions, particularly over the shallow continental shelves and slopes, having maximum amplitudes virtually independent of storm category. In most cases no detection was possible over deep oceanic regions, nor at distant arrays. Additionally, the rear quadrants and trailing swells of the cyclone provide the optimum SGW spectrum for the generation of microseisms, often shifted more than 500 km off the "eye". As a result of the aforementioned and added to the strong attenuation of storm microseisms, the inversion of tracks or physical properties of storms using a few far-field arrays is discontinuous in most cases, being reliable only if benchmark atmospheric and/or oceanic data is available for comparison. Even if challenging due to the complexity of the coupled phenomena responsible for microseisms, the inversion of site properties, such as bathymetric parameters (e.g. depth, seabed geomorphology), near- bottom geology or SGW spectrum might be possible if storms are treated as natural sources in time-lapse ambient noise investigations. This will likely require near-field (land and underwater) observations using optimal arrays or dense, widespread sensor networks. Improved detection and understanding of ocean microseisms carries a great potential to contribute to mechanically coupled atmosphere-ocean-earth models.
    Description: Universität Hamburg
    Description: poster
    Keywords: 550 ; 621 ; 004 ; 534 ; Ambient seismic noise ; Seismology ; Oceanography ; Microseisms ; Cyclones ; Hurricanes ; Marine Geophysics ; Beamforming ; FID-GEO-DE-7
    Language: English
    Type: poster
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    CITATION GEO-LEO
  • 2
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    Biological survey: River Teign and tributaries with references to the discharge of ball clay wastes (2021)
    South West Water Authority | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11139 | 1256 | 2013-04-11 16:54:51 | 11139 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-28
    Description: This is the Biological survey of River Teign and tributaries with references to the discharge of ball clay wastes, document produced by South West Water Authority in 1973. This report focuses on on-site assessment of the benthic macro-invertebrates of the lower River Teign, River Bovey, Ugbrooke Stream and Blatchford Brook was undertaken on 19th and 22nd August 1977 to assess the effects of discharges from ball clay mining premises. Inspection of aquatic fauna in the field is of necessity, less extensive than laboratory identification of sorted samples, so that the resulting data underestimates the water quality. This is more pronounced in the Chandler Score than in the Trent Biotic Index which does not take account of species abundance. Chandler should thus be interpreted by the trends described rather than by absolute values calculated.
    Description: Environment Agency Archives South West
    Description: + tables and maps
    Keywords: Ecology ; Limnology ; Pollution ; England ; River Teign ; Inland waters ; Invertebrates ; Environmental assessment ; Freshwater pollution ; Water quality ; Fishery surveys
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 2
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  • 3
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    First Annual Report for the year ended 31st March, 1966 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10595 | 1256 | 2013-02-15 14:57:47 | 10595 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the first Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1965, to the end of March 1966. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Marron, Irt, Esk, Eden, Caldew, Petteril, Eamont and Annas. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent, and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. It also looks at fish hatchery, fisheries protection and byelaws including licence numbers issued for the different districts. The fourth section on pollution deals with water quality of the rivers and their tributaries from the same 5 areas mentioned above. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 65
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  • 4
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    Third Annual Report for the year ended 31st March, 1968 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10597 | 1256 | 2013-02-15 14:57:00 | 10597 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the third Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1967, to the end of March 1968. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Glenderamackin, Marron, Eden, Caldew, and Lyvennet. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution deals with water quality, and the results of samples taken from rivers Eden, Eamont, Petteril, Caldew, Calder, Derwent, Ehen, Ellen, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 85
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  • 5
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    Fourth Annual Report for the year ended 31st March, 1969 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10598 | 1256 | 2013-02-15 14:56:36 | 10598 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the fourth Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1968, to the end of March 1969. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Marron, Ellen, Eden, Caldew, Esk, Annas, Irt and Glenderamackin. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, Brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution covers water quality, and the results of samples taken from rivers Eden, Eamont, Petteril, Caldew, Calder, Derwent, Ehen, Ellen, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 87
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  • 6
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    Seventh Annual Report for year ended 31st March, 1972 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10601 | 1256 | 2013-02-15 14:55:18 | 10601 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the seventh Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1971, to the end of March 1972. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Derwent and Eden. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution deals with water quality, and the results of samples taken for chemical analysis from rivers Eden, Eamont, Petteril, Caldew, Calder, Irthing, Esk, Irt, Mite, Derwent, Ehen, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 95
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  • 7
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    Eighth Annual Report for year ended 31st March, 1973 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10602 | 1256 | 2013-02-15 14:54:53 | 10602 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the eighth Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1972, to the end of March 1973. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, including periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Derwent, Eden and Caldew. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution deals with water quality, and the results of samples taken for chemical analysis from rivers Eden, Eamont, Leith, Lowther, Lyne, Petteril, Caldew, Calder, Irthing, Esk, Irt, Mite, Derwent, Ehen, Ellen, Annas, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 112
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  • 8
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    Ninth Annual Report for year ended 31st March, 1974 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10603 | 1256 | 2013-02-15 14:54:29 | 10603 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the ninth Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1973, to the end of March 1974. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Glenderamackin and Lyvennet. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution deals with water quality, and the results of samples taken for chemical analysis from rivers Eden, Eamont, Leith, Lowther, Lyne, Petteril, Caldew, Calder, Marron, Irthing, Esk, Irt, Mite, Derwent, Ehen, Ellen, Annas, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 106
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  • 9
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    Ninth Annual Report for the year ended 31st March, 1960 (2021)
    Cumberland River Board | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10604 | 1256 | 2013-02-15 14:54:04 | 10604 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the ninth Annual report of the Cumberland River Board on information of its activities and responsibilities on river management in its area between the beginning of April 1959, to the end of March 1960. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes information on the completion of a gauging station on the River Eden, and an approval for a similar station on the River Derwent. It also gives information on rainfall and river flow. The section on land drainage looks at work on improvement schemes and information on maintenance work carried out on rivers including Wampool, Waver, Wiza, Ellen, Cocker, Irt, Esk, Annas, Marron, Eden, Eamont, Caldew and Petteril. The fisheries section covers 4 districts of the River Eden, Esk, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as re-stocking and fisheries protection. The fourth section on pollution deals with water quality and information on sewage and trade effluents.The River Boards preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Board ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 41
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  • 10
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    Fifth Annual Report for the year ended 31st March, 1970 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10599 | 1256 | 2013-02-15 14:56:11 | 10599 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the fifth Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1969, to the end of March 1970. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, wich includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Derwent, Ellen, Mite, Bleng, Eden, Caldew and Petteril. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution deals with water quality, and the results of samples taken from rivers Eden, Eamont, Petteril, Caldew, Calder, Bleng, Derwent, Ehen, Ellen, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 88
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  • 11
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    Tenth Annual Report for the year ended the 31st March, 1961 (2021)
    Cumberland River Board | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10605 | 1256 | 2013-02-15 14:53:38 | 10605 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the tenth Annual report of the Cumberland River Board on information of its activities and responsibilities on river management in its area between the beginning of April 1960, to the end of March 1961. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes information on the completion of gauging stations on the River Derwent and Eamont, and the building of a similar station on the River Esk. It also gives information on rainfall and river flow. The section on land drainage looks at work on improvement schemes and information on maintenance work carried out on rivers including Wampool, Waver, Wiza, Ellen, Cocker, Irt, Annas, Mite, Ehen, Marron, Eden, Caldew and Petteril. The fisheries section covers 5 districts of the River Eden, Esk, Derwent, Ellen and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as re-stocking and fisheries protection. The fourth section on pollution deals with water quality and information on sewage and trade effluents.The River Boards preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Board ; Annual reports ; Inland Waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 57
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  • 12
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    Twelfth Annual Report for the year ended the 31st March, 1963 (2021)
    Cumberland River Board | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10607 | 1256 | 2013-02-15 14:52:42 | 10607 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the twelfth Annual report of the Cumberland River Board on information of its activities and responsibilities on river management in its area between the beginning of April 1962, to the end of March 1963. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes information on the completion of gauging stations, abstraction of water and rainfall. The section on land drainage looks at work on improvement schemes, floods and information on maintenance work carried out on rivers including Wampool, Waver, Wiza, Ellen, Cocker, Greta, Marron, Ehen, Keekle, Esk, Bleng, Mite, Annas, Eden, Caldew and Petteril. The fisheries section covers 5 districts of the River Eden, Esk, Derwent, Ellen and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as Byelaws and fisheries protection. The fourth section on pollution covers water quality and information on sewage and trade effluents.The River Boards preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Board ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 61
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  • 13
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    Eleventh Annual Report for the year ended 31st March, 1962 (2021)
    Cumberland River Board | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10606 | 1256 | 2013-02-15 14:53:11 | 10606 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the eleventh Annual report of the Cumberland River Board on information of its activities and responsibilities on river management in its area between the beginning of April 1961, to the end of March 1962. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes information on the building of gauging stations, abstraction of water, and rainfall and river flow. The section on land drainage looks at work on improvement schemes and information on maintenance work carried out on rivers including Wampool, Waver, Wiza, Ellen, Cocker, Irt, Mite, Keekle, Eden, Esk, Caldew and Petteril. The fisheries section covers 5 districts of the River Eden, Esk, Derwent, Ellen and South West Cumberland. It includes angling information and a general report for salmon and sea trout, Brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as Byelaws and fisheries protection. The fourth section on pollution deals with water quality and information on sewage and trade effluents.The River Boards preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Board ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 55
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  • 14
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    Sixth Annual Report for the year ended 31st March, 1971 (2021)
    Cumberland River Authority | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10600 | 1256 | 2013-02-15 14:55:43 | 10600 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the sixth Annual report of the Cumberland River Authority on information of its activities and responsibilities on river management in its area between the beginning of April 1970, to the end of March 1971. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes periodical surveys, hydrometric schemes, acceptable flows, conservation works and a review of rainfall and river flow.The section on land drainage looks at work on improvement schemes, floods, charges and information on maintenance work carried out on rivers including Wampool, Waver, Derwent, Eden, Mite, Bleng, Annas and Irt. The fisheries section covers 5 districts of the River Eden, Esk, Ellen, Derwent and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as fisheries protection and licence duties. The fourth section on pollution deals with water quality, and the results of samples taken from rivers Eden, Eamont, Petteril, Caldew, Calder, Irt, Derwent, Ehen, Ellen, Wampool and Waver are also given. It also covers information on sewage and trade effluents.The River Authorities preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Authority ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 94
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  • 15
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    Thirteenth Annual Report for the year ended 31st March, 1964 (2021)
    Cumberland River Board | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10608 | 1256 | 2013-02-15 14:18:44 | 10608 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the thirteenth Annual report of the Cumberland River Board on information of its activities and responsibilities on river management in its area between the beginning of April 1963, to the end of March 1964. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes information on the completion of gauging stations, abstraction of water and rainfall and river flow. The section on land drainage looks at work on improvement schemes, floods and information on maintenance work carried out on rivers including Wampool, Waver, Wiza, Derwent, Cocker, Keekle, Marron, Ehen, Irt, Esk, Mite, Lowther, Eden, Caldew and Petteril. The fisheries section covers 5 districts of the River Eden, Esk, Derwent, Ellen and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as Byelaws and fisheries protection. The fourth section on pollution deals with water quality and information on sewage and trade effluents.The River Boards preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Board ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 62
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    Fourteenth Annual Report for the year ended 31st March, 1965 (2021)
    Cumberland River Board | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10609 | 1256 | 2013-02-15 14:18:11 | 10609 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the fourteenth Annual report of the Cumberland River Board on information of its activities and responsibilities on river management in its area between the beginning of April 1964, to the end of March 1965. The report contains 5 main sections on water resources, land drainage, fisheries, pollution, and finally the expenditure and income for the 12 month period. The first area that the report deals with is water resources, which includes information on the completion of gauging stations, abstraction of water and rainfall and river flow. The section on land drainage looks at work on improvement schemes, floods and information on maintenance work carried out on rivers including Wampool, Waver, Wiza, Ellen, Cocker, Keekle, Marron, Ehen, Bleng, Esk, Mite, Caldew and Petteril. The fisheries section covers 5 districts of the River Eden, Esk, Derwent, Ellen and South West Cumberland. It includes angling information and a general report for salmon and sea trout, brown trout and freshwater fish. Fish disease and fish hatchery are also covered as well as Byelaws and fisheries protection. The fourth section on pollution deals with water quality and information on sewage and trade effluents.The River Boards preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumberland River Board ; Annual reports ; Inland waters ; Rivers ; Salmon fisheries ; Freshwater fish ; Water management ; Fish catch statistics ; Water quality ; Pollution ; Licensing ; Environmental monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 62
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  • 17
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    The Environment Agency/DEFRA Evidence and Measures Project: Practical Solutions - Moston Brook (2021)
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11164 | 1256 | 2013-09-03 13:07:23 | 11164 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-28
    Description: This is the final presentation from the Moston Brook Evidence and Measures project which ran from September 2012 to March 2013. Moston Brook water body is part of the River Irwell Pilot Catchment and the objective of the project was to devise reliable measures (actions) which were based on existing evidence and that could be implemented in years 2 and 3 by the Environment Agency and its partner to help meet Water Framework Directive (WDF) requirements and community aspirations. The presentation summarises the main suspected causes of WDF failure, the evidence for this, the main causes for failure in the sub-catchments resulting from the evidence found, and identifies measures to carry out, which will address the WDF failures and improve the quality of the water. This presentation can be used to inform others on how to improve the water quality of Moston Brook, and also to support other similar initiatives.
    Description: Environment Agency Archives North West
    Description: Copy of 20 powerpoint slides in 10 page document.
    Keywords: Ecology ; Limnology ; Pollution ; UK ; England ; North West ; Rivers ; Environmental assessment ; Water management ; Freshwater pollution ; Water quality ; River Irwell ; water@leeds
    Repository Name: AquaDocs
    Type: conference_item , FALSE
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    Cheshire Meres 1995, May-June (2021)
    National Rivers Authority | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10909 | 1256 | 2013-03-21 13:05:20 | 10909 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-01
    Description: This is the Cheshire Meres 1995, May – June Surveys Report from the National Rivers Authority, 1995. The report focuses on the surveys of ten Cheshire Meres in November 1994 and then again in May-June 1995 as part of a rolling program examining the water quality of this group of still waters. The ten meres surveyed were: Betley, Budworth, Combermere, Hatchmere, Oak mere, Pick mere, Redes, Rostheme, Tabley, and Tatton. This report discusses the results of the May-June survey before making a comparison between these and the November survey results. The section on results contains information about suspended solids (S.S.) and volatile suspended solids (V.S.S.); Nitrate and Nitrite; Ammonia; ortho-Phosphate; Silicate and Soluble reactive Silica; and total Phosphorus.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Survey ; Eutrophication ; Inland waters ; Pollution ; Lakes classification
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 16
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  • 19
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    Cheshire stillwaters summary results 1999 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10914 | 1256 | 2013-03-22 14:06:01 | 10914 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Cheshire stillwaters summary results 1999 from the Environment Agency North West. In May 1997, a Stillwaters meeting was held to discuss the way forward in stillwaters monitoring. It decided upon the establishment of a three year rolling programme, in which three stillwaters would be monitored three times a year, every third year. During 1999, stillwaters monitored for the third year of the Stillwaters Monitoring Programme were Tabley Mere, Comber Mere and Norbury Mere. Surveys of Petty Pool and Betley Mere continued for a second and third year respectively after water quality concerns were highlighted in previous end-of-year reports. Oak Mere was also surveyed for the third year running due to its unusual ecology. This year, the variety of parameters monitored was limited to algal, zooplankton and water chemical samples. Fisheries and marginal invertebrate surveys were not completed due to lack of resources.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters ; Pollution ; Fish surveys
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 9
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  • 20
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    Stillwaters monitoring programme summary results 2000 (2021)
    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10913 | 1256 | 2013-03-22 14:06:43 | 10913 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Stillwaters monitoring programme summary results 2000 from the Environment Agency. In May 1997, a Stillwaters meeting was held to discuss the way forward in stillwaters monitoring. It decided upon the establishment of a three year rolling programme, in which three stillwaters would be monitored three times a year, every third year. During 2000, stillwaters monitored for the fourth year of the Stillwaters Monitoring Programme were Hatch Mere, Marbury Big Mere, Comber Mere, Tabley Mere, Tatton Mere and Melchett Mere. Algal, zooplankton and water chemical samples were taken on all meres. Surveys of Tabley Mere and Comber Mere continued on from last year when water quality concerns were highlighted. Continuous monitoring in Oak Mere, including water level data continued in 2000. Fish surveys were carried out in Tatton Mere and Comber Mere. Tabley Mere survey was abandoned due to the awkward bathymetry of the mere. No invertebrate samples were taken in 2000 due to lack of resources.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters ; Pollution ; Fish surveys
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 21
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    PICES Press, Vol. 21, No. 2, Summer 2013 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11677 | 121 | 2013-10-10 18:48:08 | 11677 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •The 2013 Inter-sessional Science Board Meeting: A Note from the Science Board Chairman (pp. 1-4)•ICES/PICES Workshop on Global Assessment of the Implications of Climate Change on the Spatial Distribution of Fish and Fisheries (pp. 5-8)•PICES participates in a Convention on Biological Diversity Regional Workshop (pp. 9-11)•Social and Economic Indicators for Status and Change within North Pacific Ecosystems (pp. 12-13)•The Fourth International Jellyfish Bloom Symposium (pp. 14-15)•Workshop on Radionuclide Science and Environmental Quality in the North Pacific (pp. 16-17)•PICES-MAFF Project on Marine Ecosystem Health and Human Well-Being: Indonesia Workshop (pp. 18-19)•Socioeconomic Indicators for United States Fisheries and Fishing Communities (pp. 20-23)•Harmful Algal Blooms in a Changing World (pp. 24-25, 27)•Enhancing Scientific Cooperation between PICES and NPAFC (pp. 26-27)•Workshop on Marine Biodiversity Conservation and Marine Protected Areas in the Northwest Pacific (pp. 28-29)•The State of the Western North Pacific in the Second Half of 2012 (pp. 30-31)•Stuck in Neutral in the Northeast Pacific Ocean (pp. 32-33)•The Bering Sea: Current Status and Recent Trends (pp. 34-36)•For your Bookshelf (p. 37)•Howard Freeland takes home Canadian awards (p. 38)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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    Format: application/pdf
    Format: 38
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    PICES Press, Vol. 16, No. 1, January 2008 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11732 | 121 | 2013-10-25 20:16:27 | 11732 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-06-25
    Description: ◾PICES Science in 2007 (pdf, 0.1 Mb)◾2007 Wooster Award (pdf, 0.1 Mb)◾FUTURE - A milestone reached but our task is not done (pdf, 〈 0.1 Mb)◾International symposium on "Reproductive and Recruitment Processes of Exploited Marine Fish Stocks" (pdf, 0.1 Mb)◾Recent results of the micronekton sampling inter-calibration experiment (pdf, 0.1 Mb)◾2007 PICES workshop on "Measuring and monitoring primary productivity in the North Pacific" (pdf, 0.1 Mb)◾2007 Harmful Algal Bloom Section annual workshop events (pdf, 0.1 Mb) ◾A global approach for recovery and sustainability of marine resources in Large Marine Ecosystems (pdf, 0.3 Mb)◾Highlights of the PICES Sixteenth Annual Meeting (pdf, 0.4 Mb)◾Ocean acidification of the North Pacific Ocean (pdf, 0.3 Mb)◾Workshop on NE Pacific Coastal Ecosystems (2008 Call for Salmon Survival Forecasts) (pdf, 0.1 Mb)◾The state of the western North Pacific in the first half of 2007 (pdf, 0.4 Mb)◾PICES Calendar (pdf, 0.4 Mb)◾The Bering Sea: Current status and recent events (pdf, 0.3 Mb)◾PICES Interns (pdf, 0.3 Mb)◾Recent trends in waters of the subarctic NE Pacific (pdf, 0.3 Mb)◾Election results at PICES (pdf, 0.2 Mb)◾A new PICES award for monitoring and data management activities (pdf, 〈 0.1 Mb)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 23
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    Surface currents in the Caribbean Sea as deduced from satellite tracked drifting buoys (2021)
    In:  http://aquaticcommons.org/id/eprint/12296 | 31 | 2013-11-15 23:20:20 | 12296 | Gulf and Caribbean Fisheries Institute
    Details
    Publication Date: 2021-06-28
    Description: Item includes an abstract in Spanish.
    Keywords: Fisheries ; Oceanography ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 106-113
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  • 24
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    A Lotus spreadsheet to handle beach profile calculations [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/12746 | 9 | 2013-12-09 19:57:32 | 12746 | Gulf and Caribbean Fisheries Institute
    Details
    Publication Date: 2021-07-05
    Keywords: Earth Sciences ; Fisheries ; Oceanography ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 838-838
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  • 25
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    A study of water quality in Baltimore Harbor (2021)
    Chesapeake Biological Laboratory | Solomons Island, MD
    In:  http://aquaticcommons.org/id/eprint/12824 | 130 | 2014-02-08 04:02:55 | 12824 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Details
    Publication Date: 2021-07-06
    Description: Baltimore Harbor is polluted by discharge of sewage and industrial wastes into tributary streams and peripheral waters. The Harbor is used extensively for navigation, industrial water supply, and recreation as well as for waste disposal. The degree of pollution varies from negligible in the principal fairway to severe in the innermost sections. Private industry discharges several hundred tons of acid materials daily and is also the principal source of organic pollution.
    Description: PDF includes 141 pp. (front matter + 132 pp.).
    Keywords: Conservation ; Ecology ; Environment ; Pollution
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
    Format: 132
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    A case study of the effects of gas and oil production on artificial reef and demersal fish and macrocrustacean communities in the northwestern Gulf of Mexico (2021)
    LGL Ecological Research Associates, Inc. | Bryan, TX
    In:  http://aquaticcommons.org/id/eprint/14136 | 9596 | 2020-08-31 18:05:28 | 14136 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: This report provides a synthesis of the observed effects of the Buccanneer Gas and Oil Field on biological systems and fisheries of the study area. Demersal fishes and macrocrustaceans, the biofouling community, reef and pelagic fishes were used as indicators of impacts. Other biological components (bacteria, plankton and in-faunal benthos) were considered as part of the environment and were addressed only to the extent that they directly impacted or limited the primary indicator groups.
    Keywords: Environment ; Pollution ; artificial reef ; demersal fish ; gas production ; macrocrustaceans ; oil production
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    Format: application/pdf
    Format: 82
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  • 27
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    Hydrographic and climatological study of Area M-3 - Ecological Survey of Area M-3 (2021)
    Texas Game and Fish Commission Marine Laboratory | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14207 | 9596 | 2020-08-23 22:50:08 | 14207 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: In order to obtain information on the characteristics of water and climate that prevail in Galveston Bay, East Bay, and West Bay, established stations were sampled regularly. Information derived from samples included water temperature and salinity. Additional information of this nature was derived from other bay studies. Information on river flow, air temperature and wind were derived from publications. Water temperatures were found to follow air temperatures closely. The prevailing winds in all but two months were on-shore winds. Salinities were found to vary inversely with the volume of fresh water entering the bays from the Trinity River. West Bay, due to its locations, is affected less than the other bays by fresh water from the Trinity River. Vertical and horizontal salinity gradients were found to be the normal pattern in East Bay and Galveston Bay. West Bay, with two major passes to the Gulf of Mexico and with no major source of fresh water, normally maintained higher salinities than the other bays.
    Keywords: Chemistry ; Oceanography ; GBIC ; hydrography ; meteorology ; salinity gradients ; temperature ; salinity ; water sampling
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 7
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    Bottom sediments of Area M-2 (2021)
    Texas Game and Fish Commission | Rockport, Texas
    In:  http://aquaticcommons.org/id/eprint/14211 | 9596 | 2020-08-23 23:18:07 | 14211 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Samples of the bottom sediments in upper Galveston and Trinity Bays were obtained by various means including by hand, plastic tube, Eckman dredge, etc. and the distribution of the various bottom types were plotted throughout the area. Information and data were gathered from numerous sources and publications.
    Keywords: Oceanography ; GBIC ; Ekman dredge ; sediments ; sampling ; sediment sampling ; bottom topography
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    Chemical Analysis of Sinclair Refinery's Waste Waters, Pasadena, Texas - Industrial Waste Control in Region MP-1 (2021)
    Texas Game and Fish Commission | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14233 | 9596 | 2020-08-23 21:38:45 | 14233 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Sinclair Refinery is located on the Houston Ship Channel approximately 2.5 miles above the Washburn Tunnel in Pasadena, Texas. Sinclair employs 2000 personnel and processes over 150,000 barrels of crude per day. Five thousand gallons per minute of waste waters from the refinery enter the Houston Ship Channel after being run through old, outdated, oil skimmers. Samples of this discharge were analyzed for the presence of potentially harmful chemical constituents. It is believed that with the completion of the new retention basin and acid pond with pH control a substantial improvement in water quality should be achieved.
    Keywords: Aquaculture ; Pollution ; wastewater ; chemical analysis ; water analysis ; water quality ; oil pollution ; industrial wastes ; oil refineries ; GBIC
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
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  • 30
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    Chemical and physical analysis of the water of Area M-2 (2021)
    Texas Game and Fish Commission | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14213 | 9596 | 2020-08-23 22:33:19 | 14213 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Observations and analysis of the various features of the water of upper Galveston and Trinity Bays (Area M-2) were made using dye, thermometers, chemical tests, and other appropriate methods. Information and data were also collected from numerous publications and other sources. The distribution of marine organisms relative to pollution in the Houston Ship Channel was investigated.
    Keywords: Chemistry ; Ecology ; Pollution ; chemical analysis ; physical properties ; water analysis ; pollution ; marine organisms ; ecological distribution ; GBIC
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    Determination of Source, Amount, and Area of Pesticide Pollution in some Texas Bays (2021)
    Texas Parks and Wildlife Department | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14254 | 9596 | 2020-08-31 20:12:10 | 14254 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: This study was initiated to determine the source, amount, and area of pesticide contamination within some Texas bays, including Galveston Bay. The commercial oyster (Crassostrea virginica) was used as the indicator organism. Whole oysters were prepared for analysis by electron capture gas liquid chromatography. Analyses were made for the following chlorinated hydrocarbons: Aldrin, BHC, Dieldrin, DDD, DDE, DDT, Endrin, Heptachlor epoxide, Lindane, and Methoxychlor. The estimated crop land within each watershed being sampled was determined. Approximate pounds of each pesticide applied per year were determined to pinpoint areas of high application,
    Keywords: Limnology ; Pollution ; oysters ; Crassostrea virginica ; chlorinated hydrocarbons ; pesticides ; watersheds ; pollution ; GBIC
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    U.S. west coast relative sea levels from tide gauges [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14315 | 8 | 2014-01-27 21:35:56 | 14315
    Details
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Examining secular changes in relative sea level along the U.S. west coast, we have identified strong tectonic signals. Tectonism exists not only on a coherent plate-wide scale (assuming a rigid plate approximation), but also on a sub-plate scale. In fact, differential tectonism between exotic or suspect geological terrain explains much of the spatial patterns of west coast tide-gauge data. Peltier's isostatic model appears not to explain the spatial pattern, implying glacio-isostatic adjustment is not the dominant contribution to the low-frequency signals. Eustatic effects cannot be identified unambiguously.These studies suggest several major questions/observations with regard to relative sea-level studies ...
    Keywords: Earth Sciences ; Oceanography ; PACLIM
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    Format: application/pdf
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    Sea surface temperature and the subsequent freshwater survival rate of some salmon stocks: a surprising link between the climate of land and sea (2021)
    In:  http://aquaticcommons.org/id/eprint/14469 | 8 | 2014-02-14 00:44:32 | 14469
    Details
    Publication Date: 2021-06-25
    Description: Previous consideration of the relationship between climate and the survival rate of Pacific salmon eggs and fry has been confined to effects of large variation in the ambient freshwater environment; e.g., stream discharge, temperature, turbidity. This analysis shows sea surface temperatures during the last year of life of maturing adult salmon are also strongly associated with the subsequent survival rate of salmon eggs and fry is fresh water, presumably through development of the future eggs or sperm. In several stocks of three species of North American salmon, the association between the "marine" climate and egg survival is stronger than, or additive to, any estimated climatic association in fresh water. This apparent and surprising link between fresh water and the distant ocean has some interesting and complex implications for management of future salmon production.
    Keywords: Ecology ; Oceanography ; PACLIM
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    Format: application/pdf
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    Trends and long-term variability of ocean properties at Ocean Station P in the northeast Pacific Ocean [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14478 | 8 | 2014-02-08 00:25:37 | 14478
    Details
    Publication Date: 2021-06-25
    Description: Twenty-seven years (1956-1983) of oceanographic data collected at Ocean Station P (50°N/145°W), as well as supplementary data obtained in its neighborhood, have been examined for trends and interannual variability in the northeast Pacific Ocean. There is evidence that the water is warming and freshening and that the isopycnal surfaces are deepening. Trends in oxyty are mostly not significant. The most common periods for the interannual variability appear to be 2 1/2 and 6-7 years. The vertical movement of water accounts for one half of the changes in temperature and salinity and 30% of those in oxyty. Other factors, such as a shift of water masses, may also be important.
    Keywords: Oceanography ; PACLIM
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    Format: application/pdf
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    5th Workshop on Climate Variability of the Eastern North Pacific and Western North America [PACLIM], 20-24 March 1988, Pacific Grove, California [front matter] (2021)
    In:  http://aquaticcommons.org/id/eprint/14407 | 8 | 2014-02-08 00:01:33 | 14407
    Details
    Publication Date: 2021-07-10
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 36
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    Equatorial upwelling at Galapagos: the cadmium record in corals since 1600 [abstract and figures] (2021)
    In:  http://aquaticcommons.org/id/eprint/14413 | 8 | 2014-02-06 00:03:28 | 14413
    Details
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Chemical isolation of lattice-bound trace elements in marine carbonates has opened new windows to paleoceanographic study. In a modern context at the Galapagos Islands, oceanic upwelling variability is mirrored by changes in the Cd content of reef-building corals. This association derives from cadmium's nutrient-like distribution in the water column and its ability to substitute for calcium in the aragonite lattice of corals. Given corals of sufficient age, it is thus possible to reconstruct near-term ENSO-related changes in surface waters of the eastern Equatorial Pacific on annual and sub-annual timescales.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
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    Harmful algal bloom management and response: assessment and plan (2021)
    Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology | Washington, D.C.
    In:  http://aquaticcommons.org/id/eprint/14922 | 403 | 2014-03-13 23:10:18 | 14922 | United States National Ocean Service
    Details
    Publication Date: 2021-06-28
    Description: This report, "Harmful Algal Bloom Management and Response: Assessment and Plan" reviews and evaluates Harmful Algal Bloom (HAB) management and response efforts, identifies current prevention, control, and mitigation programs for HABs, and presents an innovative research, event response, and infrastructure development plan for advancing the response to HABs. In December 2004, Congress enacted and the President signed into law the Harmful Algal Bloom and Hypoxia Amendments Act of 2004, (HABHRCA 2004). The reauthorization of HABHRCA acknowledged that HABs are one of the most scientifically complex and economically damaging coastal issues challenging our ability to safeguard the health of our Nation’s coastal ecosystems. The Administration further recognized the importance of HABs as a high priority national issue by specifically calling for the implementation of HABHRCA in the President’s U.S. Ocean Action Plan. HABHRCA 2004 requires four reports to assess and recommend research programs on HABs in U.S. waters. This document comprises two linked reports specifically aimed at improving HAB management and response: the Prediction and Response Report and the follow-up plan, the National Scientific Research, Development, Demonstration, and Technology Transfer (RDDTT) Plan on Reducing Impacts from Harmful Algal Blooms. This document was prepared by the Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health, which was chartered through the Joint Subcommittee on Ocean Science and Technology of the National Science and Technology Council and the Interagency Committee on Ocean Science and Resource Management Integration. This report complements and expands upon HAB-related priorities identified in Charting the Course for Ocean Science in the United States for the Next Decade: An Ocean Research Priorities Plan and Implementation Strategy, recently released by the Joint Subcommittee on Ocean Science and Technology. It draws from the contributions of numerous experts and stakeholders from federal, state, and local governments, academia, industry, and non-governmental organizations through direct contributions, previous reports and planning efforts, a public comment period, and a workshop convened to develop strategies for a HAB management and response plan. Given the importance of the Nation’s coastal ocean, estuaries, and inland waters to our quality of life, our culture, and the economy, it is imperative that we move forward to better understand and mitigate the impacts of HABs which threaten all of our coasts and inland waters. This report is an effort to assess the extent of federal, state and local efforts to predict and respond to HAB events and to identify opportunities for charting a way forward.
    Keywords: Fisheries ; Management ; Pollution
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    Major and trace element analytical methods of the National Status and Trends Program: 2000-2006 (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14940 | 403 | 2014-03-17 18:30:31 | 14940 | United States National Ocean Service
    Details
    Publication Date: 2021-06-29
    Description: This document contains analytical methods that detail the procedures for determining major and trace element concentrations in bivalve tissue and sediment samples collected as part of the National Status and Trends Program (NS&T) for the years 2000-2006. Previously published NOAA Technical Memoranda NOS ORCA 71 and 130 (Lauenstein and Cantillo, 1993; Lauenstein and Cantillo, 1998) detail trace element analyses for the years 1984-1992 and 1993-1996, respectively, and include ancillary, histopathology, and contaminant (organic and trace element) analytical methods.The methods presented in this document for trace element analysis were utilized by the NS&T Mussel Watch and Bioeffects Projects. The Mussel Watch Project has been monitoring contaminants in bivalves and sediment for over 20 years, and is the longest active contaminant monitoring program operating in U.S. costal waters. Approximately 280 Mussel Watch sites are monitored on biennial and decadal timescales using bivalve tissue and sediment, respectively. The Bioeffects Project applies the sediment quality approach, which uses sediment contamination measurements, toxicity tests and benthic macroinfauna quantification to characterize pollution in selected estuaries and coastal embayments. Contaminant assessment is a core function of both projects.Although only one contract laboratory was used by the NS&T Program during the specified time period, several analytical methods and instruments were employed. The specific analytical method, including instrumentation and detection limit, is noted for each measurement taken and can be found at http://NSandT.noaa.gov. The major and trace elements measured by the NS&T Program include: Al, Si, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Sn, Sb, Ag, Cd, Hg, Tl and Pb.
    Keywords: Ecology ; Fisheries ; Pollution
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    A geo-referenced benthic habitat survey in support of natural resource management: Port Graham Bay, Alaska (2021)
    NOAA/National Centers for Coastal Ocean Science | Beaufort, NC
    In:  http://aquaticcommons.org/id/eprint/14941 | 403 | 2014-03-17 18:26:25 | 14941 | United States National Ocean Service
    Details
    Publication Date: 2021-06-29
    Description: The impact of recent changes in climate on the arctic environment and its ecosystems appear to have a dramatic affect on natural populations (National Research Council Committee on the Bering Sea Ecosystem 1996) and pose a serious threat to the continuity of indigenous arctic cultures that are dependent on natural resources for subsistence (Peterson D. L., Johnson 1995). In the northeast Pacific, winter storms have intensified and shifted southward causing fundamental changes in sea surface temperature patterns (Beamish 1993, Francis et al. 1998). Since the mid 1970’s surface waters of the central basin of the Gulf of Alaska (GOA) have warmed and freshened with a consequent increase in stratification and reduced winter entrainment of nutrients (Stabeno et al. 2004). Such physical changes in the structure of the ocean can rapidly affect lower trophic levels and indirectly affect fish and marine mammal populations through impacts on their prey (Benson and Trites 2002). Alaskan natives expect continued and perhaps accelerating changes in resources due to global warming (DFO 2006).and want to develop strategies to cope with their changing environment.
    Keywords: Fisheries ; Management ; Oceanography ; Planning
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    Feasibility of using sea surface temperature imagery to mitigate cheloniid sea turtle–fishery interactions off the coast of northeastern USA (2021)
    In:  joanne.b.mcneill@noaa.gov | http://aquaticcommons.org/id/eprint/14916 | 403 | 2014-03-11 19:19:32 | 14916 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: As sea turtles migrate along the Atlantic coast of the USA, their incidental capture in fisheries is a significant source of mortality. Because distribution of marine cheloniid turtles appears to be related, in part, to sea surface temperature (SST), the ability to predict water temperature over the continental shelf could be useful in minimizing turtle–fishery interactions. We analyzed 10 yr of advanced very high resolution radiometer (AVHRR) SST imagery to estimate the proportion of 18 spatial zones, nearshore and offshore of Hatteras, North Carolina, USA (35° N), to north of Cape Sable, Nova Scotia (44° N), at temperatures 〉10 to 15°C, by week. Detailed examples for 11°C, the temperature employed by some management actions in the study area, and for 14°C, the lowest temperature at which turtles were sighted by some studies in the area, demonstrate a predictable pattern of rapid warming in March and April, followed by rapid cooling in October and November, with nearshore waters warming more rapidly than those offshore. Of those loggerhead turtles Caretta caretta that stranded, were sighted, or were incidentally captured between Cape Hatteras, North Carolina, and Cape Cod, Massachusetts, those at lower latitudes occurred when 25% or more of the area reached a water temperature of 11°C, while those in the northern zones did not occur until 50% or more of the area had reached a water temperature of 14°C. This analysis provides a means of predicting marine cheloniid turtle presence, which can be helpful in regulating fisheries that seasonally interact with turtles.
    Keywords: Fisheries ; Management ; Oceanography
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    Proceedings of the Ninth Annual Pacific Climate (PACLIM) Workshop, Asilomar, California - April 21-24, 1992 [front matter] (2021)
    Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    In:  http://aquaticcommons.org/id/eprint/14593 | 8 | 2014-10-27 22:04:03 | 14593
    Details
    Publication Date: 2021-06-29
    Description: Technical Report 34 of the Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    Keywords: Atmospheric Sciences ; Ecology ; Oceanography ; PACLIM
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    Historical nitrogen and phosphorus loadings to the northern Gulf of Mexico (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  Dave.Whitall@noaa.gov | http://aquaticcommons.org/id/eprint/14936 | 403 | 2014-03-17 18:52:15 | 14936 | United States National Ocean Service
    Details
    Publication Date: 2021-06-29
    Description: Primary productivity in many coastal systems is nitrogen (N) limited; although, phytoplankton productivity may be limited by phosphorus (P) seasonally or in portions of an estuary. Increases in loading of limiting nutrients to coastal ecosystems may lead to eutrophication (Nixon 1996). Anthropogenically enhanced eutrophication includes symptoms such as loss of seagrass beds, changes in algal community composition, increased algal (phytoplankton) blooms (Richardson et al. 2001), hypoxic or anoxic events, and fish kills (Bricker et al. 2003).
    Keywords: Ecology ; Fisheries ; Pollution
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    Human use pharmaceuticals in the estuarine environment: a survey of the Chesapeake Bay, Biscayne Bay, and Gulf of the Farallones (2021)
    NOAA/National Ocean Service | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14614 | 403 | 2014-02-20 22:12:24 | 14614 | United States National Ocean Service
    Details
    Publication Date: 2021-06-29
    Description: The assessment of emerging risks in the aquatic environment is a major concern and focus of environmental science (Daughton and Ternes, 1999). One significant class of chemicals that has received relatively little attention until recently are the human use pharmaceuticals. In 2004, an estimated 2.6 billion prescriptions were written for the top 300 pharmaceuticals in the U.S. (RxList, 2005). Mellon et al. (2001) estimated that 1.4 million kg of antimicrobials are used in human medicine every year. The use of pharmaceuticals is also estimated to be on par with agrochemicals (Daughton and Ternes, 1999). Unlike agrochemicals (e.g., pesticides) which tend to be delivered to the environment in seasonal pulses, pharmaceuticals are continuously released through the use/excretion and disposal of these chemicals, which may produce the same exposure potential as truly persistent pollutants. Human use pharmaceuticals can enter the aquatic environment through a number of pathways, although the main one is thought to be via ingestion and subsequent excretion byhumans (Thomas and Hilton, 2004). Unused pharmaceuticals are typically flushed down the drain or wind up in landfills (Jones et al. 2001).
    Keywords: Ecology ; Fisheries ; Management ; Pollution
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    Synopsis of researcher meeting -- Bottlenose Dolphin Health & Risk Assessment Project, February 22-24, 2005 (2021)
    NOAA/National Centers for Coastal Ocean Science | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14951 | 403 | 2014-03-14 22:35:59 | 14951 | United States National Ocean Service
    Details
    Publication Date: 2021-06-29
    Description: A meeting was convened on February 22-24, 2005 in Charleston, South Carolina to bring together researchers collaborating on the Bottlenose Dolphin Health and Risk Assessment (HERA) Project to review and discuss preliminary health-related findings from captured dolphins during 2003 and 2004 in the Indian River Lagoon (IRL), FL and Charleston (CHS), SC. Over 30 researchers with diverse research expertise representing government, academic and marine institutions participated in the 2-1/2 day meeting.The Bottlenose Dolphin HERA Project is a comprehensive, integrated, multi-disciplinary research program designed to assess environmental and anthropogenic stressors, as well as the health and long-term viability of Atlantic bottlenose dolphins (Tursiops truncatus). Standardized and comprehensive protocols are being used to evaluate dolphin health in the coastal ecosystems in the IRL and CHS. The Bottlenose Dolphin Health and Risk Assessment (HERA) Project was initiated in 2003 by Dr. Patricia Fair at the National Oceanic and Atmospheric Administration/National Ocean Service/Center for Coastal Environmental Health and Biomolecular Research and Dr. Gregory Bossart at the Harbor Branch Oceanographic Institution under NMFS Scientific Research Permit No. 998-1678-00 issued to Dr. Bossart. Towards this end, this study focuses on developing tools and techniques to better identify health threats to these dolphins, and to develop links to possible environmental stressors. Thus, the primary objective of the Dolphin HERAProject is to measure the overall health and as well as the potential health hazards for dolphin populations in the two sites by performing screening-level risk assessments using standardized methods. The screening-level assessment involves capture, sampling and release activities during which physical examinations are performed on dolphins and a suite of nonlethal morphologic and clinicopathologic parameters, to be used to develop indices of dolphin health, are collected. Thus far, standardized health assessments have been performed on 155 dolphins during capture-release studies conducted in Years 2003 and 2004 at the two sites. A major collaboration has been established involving numerous individuals and institutions, which provide the project with a broad assessment capability toward accomplishing the goals and objectives of this project.
    Keywords: Fisheries ; Health ; Management ; Policies ; Pollution
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    Time series analyses of biological and environmental variables for Suisun Bay and the Sacramento and San Joaquin rivers (2021)
    In:  http://aquaticcommons.org/id/eprint/15564 | 8 | 2014-11-06 00:57:26 | 15564
    Details
    Publication Date: 2021-07-08
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Arima analysis was used to compute cross-correlations between principal component axes that described environmental variables, chlorophyll concentration and zooplankton density for the Sacramento and San Joaquin rivers and Suisun Bay. ... Cross-correlations among the time series may provide information about links between environmental and biological variables within the estuary and the possible influence of climate.
    Keywords: Biology ; Environment ; Limnology ; Oceanography ; PACLIM
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    Horizontal and vertical movements of juvenile bluefin tuna (Thunnus thynnus) in relation to oceanographic conditions of the western North Atlantic, determined with ultrasonic telemetry (2021)
    In:  http://aquaticcommons.org/id/eprint/15200 | 403 | 2014-05-30 07:23:21 | 15200 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-04
    Description: We employed ultrasonic transmitters to follow (for up to 48 h) the horizontal and vertical movements of five juvenile (6.8–18.7 kg estimated body mass) bluefin tuna (Thunnus thynnus) in the western North Atlantic (off the eastern shore of Virginia). Our objective was to document the fishes’ behavior and distribution in relation to oceanographic conditions and thus begin to address issues that currently limit population assessments based on aerial surveys. Estimation of the trends in adult and juvenile Atlantic bluefin tuna abundance by aerial surveys, and other fishery-independent measures, is considered a priority.Juvenile bluefin tuna spent the majority of their time over the continental shelf in relatively shallow water (generally less then 40 m deep). Fish used the entire water column in spite of relatively steep vertical thermal gradients (≈24°C at the surface and ≈12°C at 40 m depth), but spent the majority of their time (≈90%) above 15 m and in water warmer then 20°C. Mean swimming speeds ranged from 2.8 to 3.3 knots, and total distance covered from 152 to 289 km (82–156 nmi). Because fish generally remained within relatively con-fined areas, net displacement was only 7.7–52.7 km (4.1–28.4 nmi). Horizontal movements were not correlated with sea surface temperature. We propose that it is unlikely that juvenile bluefin tuna in this area can detect minor horizontal temperature gradients (generally less then 0.5°C/km) because of the steep vertical temperature gradients (up to ≈0.6°C/m) they experience during their regular vertical movements. In contrast, water clarity did appear to influence behavior because the fish remained in the intermediate water mass between the turbid and phytoplankton-rich plume exiting Chesapeake Bay (and similar coastal waters) and the clear oligotrophic water east of the continental shelf.
    Keywords: Biology ; Fisheries ; Management ; Oceanography
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    Integration of submersible transect data and high-resolution multibeam sonar imagery for a habitat-based groundfish assessment of Heceta Bank, Oregon (2021)
    In:  http://aquaticcommons.org/id/eprint/15247 | 403 | 2014-05-30 21:15:59 | 15247 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-05
    Description: In the face of dramatic declines in groundfish populations and a lack of sufficient stock assessment information, a need has arisen for new methods of assessing groundfish populations. We describe the integration of seafloor transect data gathered by a manned submersible with high-resolution sonar imagery to produce a habitat-based stock assessment system for groundfish. The data sets used inthis study were collected from Heceta Bank, Oregon, and were derived from 42 submersible dives (1988–90) and a multibeam sonar survey (1998). The submersible habitat survey investigated seafloor topography and groundfish abundance along 30-minute transects over six predetermined stations and found a statistical relationship between habitat variability and groundfish distribution and abundance. These transects were analyzed in a geographic information system (GIS) by using dynamic segmentation to display changes in habitat along the transects. We used the submersible data to extrapolate fish abundance within uniform habitat patches over broad areas of the bank by means of a habitat classification based on the sonar imagery. After applying a navigation correction to the submersible-based habitat segments, a good correlation with major boundaries on the backscatter and topographic boundaries on the imagery were apparent. Extrapolation of the extent of uniform habitats was made in the vicinity of the dive stations and a preliminary stock assessment of several species of demersal fish was calculated. Such a habitat-based approach will allow researchers to characterize marine communities over large areas of the seafloor.
    Keywords: Fisheries ; Management ; Oceanography
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    Highly migratory shark fisheries research by the National Shark Research Consortium (NSRC), 2002-2007 (2021)
    Mote Marine Laboratory | Sarasota, FL
    In:  libarc@mote.org | http://aquaticcommons.org/id/eprint/15270 | 9719 | 2014-06-12 16:56:01 | 15270 | Mote Marine Laboratory
    Details
    Publication Date: 2021-07-05
    Description: The National Shark Research Consortium (NSRC) includes the Center for Shark Research at Mote Marine Laboratory, the Pacific Shark Research Center at Moss Landing Marine Laboratories, the Shark Research Program at the Virginia Institute of Marine Science, and the Florida Program for Shark Research at the University of Florida. The consortium objectives include shark-related research in the Gulf of Mexico and along the Atlantic and Pacific coasts of the U.S., education and scientific cooperation.
    Description: National Oceanic and Atmospheric Administration/National Marine Fisheries Service
    Description: National Shark Research Consortium (NSRC)
    Description: Five-year technical report to NOAA/NMFS
    Keywords: Biology ; Ecology ; Education ; Engineering ; Fisheries ; Oceanography ; fish migration ; fish tagging ; shark fisheries ; shark biology ; shark research ; fishery management
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    Scientific research on sea mammals of the northern part of the Pacific Ocean in 1986-1987 [translated from Russian] (2021)
    All-Union Scientific Research Institute of Sea Fisheries and Oceanography (VNIRO) | Moscow, USSR
    In:  http://aquaticcommons.org/id/eprint/15303 | 8 | 2014-08-19 21:04:17 | 15303
    Details
    Publication Date: 2021-07-05
    Description: Canadian Translation of Fisheries and Aquatic Sciences No. 5506 (1990)
    Keywords: Biology ; Oceanography
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    The zooplankton species composition and abundance in Ogun River, Abeokuta, Ogun State, southwestern Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/15349 | 9513 | 2014-09-19 15:10:35 | 15349
    Details
    Publication Date: 2021-07-06
    Description: Investigation on the species composition and abundance of zooplankton in Ogun River, Abeokuta, Ogun state, Southwestern Nigeria was carried out for a period of seven months (December, 2011-June, 2012), Using hand trawling method, 55 µm mesh size plankton net was trawled horizontally ten times to capture zooplankton. The zooplankton samples were put into properly labeled plastic containers and preserved in 4% formalin solution. A total of sixteen genera from five taxonomic groups were recorded from Ogun River. Cladocera predominated both in terms of species composition and abundance. Five species of Cladocera was recorded consisting of 31.25%. Protozoa and Rotifera recorded four species each consisting of 25%. Copepoda recorded two species consisting of 12.5%, and Ostracoda with one species consisting of 6.25%. The low nature of zooplankton abundance and species composition observed in this study must have been caused by the polluted nature of the water due to the anthropogenic activities carried out around its shores The dominance of Cladocera in this river is similar to findings from River Echara and River Imo, Southeastern Nigeria.
    Keywords: Aquaculture ; Ecology ; Environment ; Fisheries ; Limnology ; Management ; Pollution
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    Monthly spatial occurrence of phytoplankton and zooplankton in River Ogun, Abeokuta, Ogun State, southwest Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/15351 | 9513 | 2014-09-19 15:29:26 | 15351
    Details
    Publication Date: 2021-07-06
    Description: The aim of this study was to investigate the monthly spatial occurrence of phytoplankton and zooplankton in River Ogun, Abeokuta, Southwest Nigeria. This was carried out for seven months between December, 2011 and June, 2012 in 4 stations. A total of 41 species of phytoplankton and 16 zooplankton species from 5 classes respectively were recorded. Zooplankton was dominated by Cladocera throughout the study period while phytoplankton was dominated by blue green algae (Cyanophyta or Cyanobacteria). The dominance of Cyanophyta in this river is similar to findings by Sekadende and co-workers, Ogato, Deng and co-worker, and Shakila and co-worker. The dominance of Cladocera in this river is similar to findings by Ude and co-workers, and Ogbuagu and co-worker.
    Keywords: Aquaculture ; Ecology ; Environment ; Fisheries ; Limnology ; Management ; Pollution
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    The phytoplankton species composition and abundance of Ogun River, Abeokuta, southwestern Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/15348 | 9513 | 2014-09-19 15:11:35 | 15348
    Details
    Publication Date: 2021-07-06
    Description: The phytoplankton species composition and abundance in Ogun River, Ogun state, Southwest Nigeria was studied for a period of seven months (December, 2011 - June, 2012), a total of forty-one genera belonging to five taxonomic groups were recorded from Ogun River. The phytoplankton species composition was surpassed by Chrysophyta with 15 species consisting of 36.6% followed by Chlorophyta with 14 consisting of 34.1%. This was followed by Cyanophyta (7 species) consisting of 17.1%, Euglenophyta with 3 species consisting of 7.3% and Pyrrophyta with 2 species consisting 4.92%. Cyanophyta was the highest in abundance consisting of 41% while the lowest in abundance was Pyrrophyta consisting of 1.5%. The low nature of phytoplankton abundance and diversity observed in this study must have been caused by the polluted nature of the water due to the anthropogenic activities carried out around its shores The dominance of Cyanophyta in this river is similar to findings from Lake Victoria, Lake Bishoftu, Lake Chaohu and the temple pond of Thirupour.
    Keywords: Aquaculture ; Ecology ; Environment ; Fisheries ; Limnology ; Management ; Pollution
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  • 53
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    Assessment of some physico-chemical parameters of River Ogun (Abeokuta, Ogun State, southwestern Nigeria) in comparison with national and international standards (2021)
    In:  http://aquaticcommons.org/id/eprint/15350 | 9513 | 2014-09-19 15:17:44 | 15350
    Details
    Publication Date: 2021-07-06
    Description: This study assessed the physico-chemical quality of River Ogun, Abeokuta, Ogun state, Southwestern Nigeria. Four locations were chosen spatially along the water course to reflect a consideration of all possible human activities that are capable of changing the quality of river water. The water samples were collected monthly for seven consecutive months (December 2011 – June 2012) at the four sampling stations. pH, air temperature (℃), water temperature (℃), conductivity (µs/cm) and total dissolved solids (mg/L) were conducted in-situ with the use of HANNA Combo pH and EC multi meter Hi 98129 and Mercury-in-glass thermometer while dissolved oxygen (mg/L), nitrate (mg/L), phosphate (mg/L), alkalinity (mg/L) and hardness (mg/L) were determined ex-situ using standard methods. Results showed that dissolved oxygen, hydrogen ion concentration, total hardness and nitrate were above the maximum permissible limit of National Administration for Food, Drugs and Control (NAFDAC), Standard Organization of Nigeria (SON), Federal Environmental Protection Agency (FEPA), United States Environmental Protection Agency (USEPA), European Union (EU) and World Health Organization (WHO) for drinking water during certain months of the study period. Results also showed that water temperature and conductivity were within the permissible limits of all the standards excluding FEPA. However, total dissolved solids and alkalinity were within the permissible limits of all the standards. Adejuwon and Adelakun, (2012) also reported similar findings on Rivers Lala, Yobo and Agodo in Ewekoro local government area of Ogun state, Nigeria. Since most of the parameters measured were above the maximum permissible limits of the national and international standards, it can be concluded that the water is unfit for domestic uses, drinking and aquacultural purposes and therefore needs to be treated if it is to be used at all. The low dissolved oxygen values for the first four months was too low i.e. 〈 5 mg/L. This is most likely as a result of the amount of effluents discharged into the river. To prevent mass extinction of aquatic organisms due to anoxic conditions, proper regulations should be implemented to reduce the organic load the river receives.
    Keywords: Chemistry ; Environment ; Health ; Management ; Pollution
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    Guidelines for undertaking rapid biodiversity assessments in terrestrial and marine environments in the Pacific (2021)
    Pacific Regional Environment Programme (SPREP) | Apia, Samoa
    In:  irc@sprep.org | http://aquaticcommons.org/id/eprint/15369 | 11964 | 2014-09-25 11:47:56 | 15369 | Secretariat of the Pacific Regional Environment Programme (SPREP)
    Details
    Publication Date: 2021-07-06
    Description: BIORAP
    Description: BEM
    Description: Hard copies are also available from: irc@sprep.org
    Keywords: Aquaculture ; Conservation ; Earth Sciences ; Ecology ; Environment ; Oceanography ; rapid biodiversity assessment ; pacific ; terrestrial ; marine ; guidelines ; natural resources conservation area ; oceania ; sprep ; 2014 ; Pacific Regional Environment Programme (SPREP) ; Wildlands
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    Introduction (2021)
    In:  http://aquaticcommons.org/id/eprint/15452 | 8 | 2014-11-06 01:07:24 | 15452
    Details
    Publication Date: 2021-07-07
    Description: In 1984, a workshop was held on "climatic variability of the eastern North Pacific and western North America." From it has emerged an annual series of workshops held each spring at the Asilomar Conference Center, Monterey Peninsula, California. These annual gatherings have come to be called PACLIM (Pacific Climate) Workshops, reflecting broad interests in the climatologies associated with the Pacific Ocean. Participants in the six workshops that have convened since 1984 have included atmospheric scientists, hydrologists, geologists, glaciologists, oceanographers, limnologists, and both marine and terrestrial biologists.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    Proceedings of the Sixth Annual Pacific Climate (PACLIM) Workshop, Asilomar, California - March 5-8, 1989 [front matter] (2021)
    Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    In:  http://aquaticcommons.org/id/eprint/15451 | 8 | 2014-11-05 23:55:51 | 15451
    Details
    Publication Date: 2021-07-07
    Description: Technical Report 23 of the Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    A modern pollen record from the central Gulf of California (2021)
    In:  http://aquaticcommons.org/id/eprint/15450 | 8 | 2014-11-20 18:42:53 | 15450
    Details
    Publication Date: 2021-07-07
    Description: As one facet of an effort to tie the pollen record of central Gulf of California deep cores to modern analogs, pollen was analyzed in the uppermost 150-200 years of varved core 7807-1410 taken nearby. Sampling at 2- to 8-year resolution yielded a noncomplacent record, suggesting pollen in these sediments may be a potential high resolution proxy record of short-term climatic events. The pollen spectrum as a whole matches that of upper-most DSDP Site 480 (means of all samples). Lack of a ratio or influx shift following damming of local rivers and a surplus of low-spine Compositae pollen relative to mainland sites support Baumgartner's theory that terrigenous influx to the site is largely aeolian and also suggest that a significant fraction of the pollen influx may come from Baja California.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM ; palynology
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    The study of the sea state data collected from Bay of Bengal during 1964-65 (2021)
    In:  http://aquaticcommons.org/id/eprint/16288 | 12051 | 2015-03-09 15:15:30 | 16288 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-02
    Description: The wave data collected on board Ins Kistna from Bay of Bengal during July to August, 1964 and January, February and April, 1965 are presented. The wave parameters are analyzed and given in a form most suitable for model testing of ships. The variation of wave height with Beaufort number is remarkable. Wave periods from 2 to 10 seconds are observed with maximum frequency in the range of 2 to 5 seconds. The heights and period obtained are compared with those obtained by previous workers for the North Atlantic region and Bay of Bengal. The influence of the wave period 2 to 5 seconds on the rolling, pitching and heaving periods of medium size vessels is also discussed.
    Keywords: Oceanography ; sea state ; data collection ; geophysical data ; design wave ; wave period ; wave height ; statistical analysis ; wave statistics ; dynamical oceanography ; Bay of Bengal ; India
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    Effects of natural gas pipeline condensate and crude oil spills, and comments on remediation, with emphasis on south Louisiana salt marshes: a review (2021)
    Louisiana Universities Marine Consortium | Chauvin, LA
    In:  http://aquaticcommons.org/id/eprint/16531 | 30 | 2015-03-30 17:02:26 | 16531 | Louisiana Universities Marine Consortium (LUMCON)
    Details
    Publication Date: 2021-07-06
    Description: This report reviews some of the natural ecological processes at work within a salt marsh as they relate to a spill of natural gas condensate - a mixture of aliphatic hydrocarbons, n-hexane, benzene, toluene, and xylene. It also reviews the environmental impacts of some of the components of natural gas condensate as well as related compounds (crude oil, higher molecular weight hydrocarbons, polycyclic aromatic hydrocarons - PAHs, linear alkyl-benzenes - LABs, etc.) on salt marsh ecosystems in southern Louisiana and elsewhere in the world. The behavior and persistence of these compounds once they have entered the environment is also considered.
    Description: A report to El Paso Energy, Inc., Houston, Texas. PDF includes front matter, 62 pages of text, 40 figures, and 9 tables.
    Keywords: Chemistry ; Ecology ; Environment ; Pollution
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    Type: monograph
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    Format: application/pdf
    Format: 122
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    Macrobenthos off Mahim (Bombay), west coast of India in relation to coastal pollution and aquaculture (2021)
    In:  http://aquaticcommons.org/id/eprint/16519 | 12051 | 2015-04-03 06:59:52 | 16519 | Indian Fisheries Association
    Details
    Publication Date: 2021-07-06
    Description: Deterioration of water quality clearly indicated a moderate to severe coastal pollution around Mahim whereas a relatively healthy marine environment towards offshore was noticed. Foraminifera, polychaetes, crustaceans and pelecypods were the dominant macro faunal groups encountered in the area. The occasional inhabitants like pennatularians, nemertines, sipunculids, ophiuroids and fish larvae were mostly restricted to offshore regions. Biomass and population density of macro fauna were moderate and showed fluctuating trend. Similarity coefficients of foraminifera (0.89) and polychaetes (0.81) were high for offshore unpolluted stations (3 and 4) as compared to near shore coastal stations (1 and 2). Faunal diversity was relatively more in unpolluted zone. The diversity index (H) was more at station 3 for polychaetes (1.39) and at station 4 for foraminifers (0.54). In general, biomass was high during post monsoon excepting station 1 which was invariably under severe pollution stress throughout the study period. Foraminifera were abundant at sandy bottom while polychaetes preferred muddy (clayey silt) bottom. A noticeable ecological modification associated with faunal abundance and diversity were related to deteriorating marine water quality due to anthropogenic waste disposals. The prevailing water quality around Mahim is unsuitable for any kind of culture practices and also for harvesting economically important marine species.
    Description: Paper presented at the National Symposium on Aquacrops, 16-18 November 1994, Versova, Bombay (India)
    Keywords: Pollution ; stock assessment ; aquatic pollution ; pollution effects ; macrofauna ; faunal diversity ; foraminifera ; polychaetes ; crustaceans ; pelecypods ; Mahim ; Bombay ; Maharashtra ; India
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    A survey of the plankton of Monterey Bay (2021)
    University of California, Berkeley | Berkeley, CA
    In:  http://aquaticcommons.org/id/eprint/16584 | 29 | 2015-04-27 20:24:53 | 16584 | University of California, Berkeley
    Details
    Publication Date: 2021-07-07
    Description: The purpose of this paper is to add to the identification of planktonic forms found in Monterey Bay, and also to compare the composition and population fluctuation with findings of previous years.
    Description: Copyright permission signed by Boone's son is on file with the IAMSLIC archive.
    Keywords: Biology ; Ecology ; Oceanography ; HMLR
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    Type: monograph , FALSE
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    Responses of plasma transaminase activity in Cyprinus carpio var. communis to mercury toxicity (2021)
    In:  http://aquaticcommons.org/id/eprint/16586 | 12051 | 2015-04-08 18:52:37 | 16586 | Indian Fisheries Association
    Details
    Publication Date: 2021-07-07
    Description: The present study reports the behavioural and enzymological responses in a freshwater teleost fish, Cyprinus carpio var. communis, exposed to acute and sublethal toxicities of mercuric chloride. During acute treatment, significant behavioural changes like erratic swimming, excess mucus secretion and increased opercular movements were noticed. During acute and sublethal treatments, both aspartate amino transferase and alanine amino transferase activity increased throughout the study period. Comparing the treatments, the changes in enzyme activities were found high in acute treatment and all the values were significant at 5% level. The above findings can be used as non-specific biomarkers of environmental pollutants.
    Keywords: Pollution ; Cyprinus carpio communis ; heavy metals ; cadmio ; methyl mercury ; lead ; aspartate amino transferase ; alanine amino tranferase ; toxic exposure ; enzimes activity
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    SAMUDRA Report No. 63, November 2012 (2021)
    International Collective in Support of Fishworkers | Chennai, India
    In:  http://aquaticcommons.org/id/eprint/11177 | 25 | 2013-06-02 15:22:23 | 11177 | International Collective in Support of Fishworkers
    Details
    Publication Date: 2021-06-28
    Description: Contents: CBD COP11. Fisheries and the Right to Food.Indonesia’s Flying Fishermen.Subsidies and Fisheries in Chile.Fishing People of the North.Women Seaweed Harvesters.
    Description: ISSN 0973-1121
    Keywords: Aquaculture ; Fisheries ; Pollution ; Sociology
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    PICES Press, Vol. 20, No. 1, Winter 2012 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11674 | 121 | 2013-10-10 18:18:55 | 11674 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •2011 PICES Science: A Note from the Science Board Chairman (pp. 1-6)•2011 PICES Awards (pp. 7-9)•Beyond the Terrible Disaster of the Great East Japan Earthquake (pp. 10-12)•A New Era of PICES-ICES Scientific Cooperation (p. 13)•New PICES Jellyfish Working Group Formed (pp. 14-15)•PICES Working Group on North Pacific Climate Variability (pp. 16-18)•Final U.S. GLOBEC Symposium and Celebration (pp. 19-25)•2011 PICES Rapid Assessment Survey (pp. 26-29)•Introduction to Rapid Assessment Survey Methodologies for Detecting Non-indigenous Marine Species (pp. 30-31)•The 7th International Conference on Marine Bioinvasions (pp. 32-33)•NOWPAP/PICES/WESTPAC Training Course on Remote Sensing Data Analysis (pp. 34-36)•PICES-2011 Workshop on “Trends in Marine Contaminants and their Effects in a Changing Ocean” (pp. 37-39)•The State of the Western North Pacific in the First Half of 2011 (pp. 40-42)•Yeosu Symposium theme sessions (p. 42)•The Bering Sea: Current Status and Recent Events (pp. 43-44)•News of the Northeast Pacific Ocean (pp. 45-47)•Recent and Upcoming PICES Publications (p. 47)•New leadership for the PICES Fishery Science Committee (p. 48)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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    PICES Press, Vol. 18, No. 2, Summer 2010 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11671 | 121 | 2013-10-10 18:17:11 | 11671 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •The 2010 Inter-sessional Science Board Meeting: A Note from the Science Board Chairman (pp. 1-3)•2010 Symposium on “Effects of Climate Change on Fish and Fisheries” (pp. 4-11)•2009 Mechanism of North Pacific Low Frequency Variability Workshop (pp. 12-14)•The Fourth China-Japan-Korea GLOBEC/IMBER Symposium (pp. 15-17, 23)•2010 Sendai Ocean Acidification Workshop (pp. 18-19, 31)•2010 Sendai Coupled Climate-to-Fish-to-Fishers Models Workshop (pp. 20-21)•2010 Sendai Salmon Workshop on Climate Change (pp. 22-23)•2010 Sendai Zooplankton Workshop (pp. 24-25, 28)•2010 Sendai Workshop on “Networking across Global Marine Hotspots” (pp. 26-28)•The Ocean, Salmon, Ecology and Forecasting in 2010 (pp. 29, 44)•The State of the Northeast Pacific during the Winter of 2009/2010 (pp. 30-31)•The State of the Western North Pacific in the Second Half of 2009 (pp. 32-33)•The Bering Sea: Current Status and Recent Events (pp. 34-35, 39)•PICES Seafood Safety Project: Guatemala Training Program (pp. 36-39)•The Pacific Ocean Boundary Ecosystem and Climate Study (POBEX) (pp. 40-43)•PICES Calendar (p. 44)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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    South Area still waters 1995 November surveys (2021)
    National River Authority | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10910 | 1256 | 2013-03-21 13:03:29 | 10910 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-01
    Description: This is the South Area still waters 1995 November surveys from the National Rivers Authority, 1996. The report focuses on the surveys of ten Cheshire Meres (Betley, Budworth, Combermere, Hatchmere, Oak mere, Pick mere, Redes, Rostherne, Tabley, and Tatton) previously surveyed in November 1994 and May 1995. Eight others (Chapel Mere, Little Mere, Marbury Mere, Mere Mere, Oss Mere, Petty Pool, Quoisley Big Mere and Tabley Moat) were surveyed for the first time. Two other lakes, Carr Mill Dam and Pennington Flash, were surveyed. Neither of these are considered to be part of the Cheshire meres group of lakes but are of a Regional interest. This report discusses the results of the November 1995 survey before making a comparison between these and the November 1994 survey results. The section on results contains information about water column profile; nutrients (chlorophyll a; Phaeophytin; Nitrate and Nitrite; Ammonia; ortho-Phosphate; Silicate; and total Phosphorus.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Survey ; Eutrophication ; Inland waters ; Pollution ; Lakes classification
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    Stillwaters monitoring programme. Summary results 2001 and 2002 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10915 | 1256 | 2013-03-22 14:04:59 | 10915 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Stillwaters monitoring programme. Summary results 2001 and 2002 from the Environment Agency North West. Until January 2001 the South Area Stillwaters Sampling Programme consisted of a rolling programme where five to six stillwaters were sampled three times a year (spring, summer and autumn). However, this method was not yielding the water quality information required for long term monitoring. Local weather conditions influence short-term water quality events, e.g. algal blooms, nutrient consumption, stratification, super-saturation etc, so results from one day sampling could only be regarded as individual ‘spot’ samples. Therefore year-on-year comparisons could not be made. It was decided that long-term water quality monitoring of the stillwaters would benefit more from sampling nutrient abundance over winter months. This would give an insight into the carry-over of nutrients available for algal growth the following year and so year-on-year productivity could be assessed. Survey results shown in this report were from: The Mere, Rostherne Mere, Melchett Mere, Tabley Mere, Tatton Mere, Hatchmere, Oak Mere, Black Lake, Chapel Mere, Bar Mere, Oss Mere, Marbury Big Mere, Comber Mere and Betley Mere.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters ; Pollution ; Fish surveys
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    Cheshire stillwaters. Summary results of 1997 data Oak Mere, Betley Mere and Marbury Big (2021)
    National Rivers Authority | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10911 | 1256 | 2013-03-21 13:06:32 | 10911 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Cheshire stillwaters. Summary results of 1997 data Oak Mere, Betley Mere and Marbury Big from the National Rivers Authority, June 1998. In May 1997, a Stillwaters meeting was held to discuss the way forward in stillwaters monitoring. It decided upon the establishment of a three year rolling programme, in which three stillwaters would be monitored three times a year, every third year. The stillwaters where chosen due to water quality (i.e potential polluted / sensitive waters), fisheries and ecological interests. The Still waters chosen for the first year (1997) were Oak Mere, Betley Mere and Marbury Big Mere. The surveys were aimed to produce a comprehensive study of the still water through monitoring a variety of parameters. Algal, zooplankton and water chemical samples were taken three times a year, (April, July and September). In addition, fisheries surveys were taken in July and marginal invertebrate surveys taken in September.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Eutrophication ; Inland waters ; Pollution ; Lakes classification ; Fisheries surveys
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    Coastal survey of the oyster parasite Dermocystidium marinum (2021)
    Texas Game and Fish Commission | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14216 | 9596 | 2020-08-23 22:28:16 | 14216 | Galveston Bay Information Collection
    Details
    Publication Date: 2021-06-24
    Description: Ray's technique was used in the determination of the oyster parasite Dermocystidium marinum. Tissue samples were collected from oysters in Galveston Bay, Matagorda Bay, Copano Bay, Aransas Bay, and the Lower Laguna Madre. Only oysters in Galveston Bay and Aransas Bay were found to be infected with the fungus. No serious moralities were observed among the infected oyster populations.
    Keywords: Oceanography ; GBIC ; oysters ; parasites ; parasitism ; fungal diseases ; Dermocystidium marinum
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    3rd Workshop on Climate Variability of the Eastern North Pacific and Western North America [PACLIM], 25-28 March 1986, Asilomar Conference Center, Pacific Grove, California [introduction and summary of previous workshop] (2021)
    In:  http://aquaticcommons.org/id/eprint/14221 | 8 | 2014-02-08 00:03:14 | 14221
    Details
    Publication Date: 2021-07-09
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    Extreme tides and sea levels in California [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14314 | 8 | 2014-01-27 21:25:05 | 14314
    Details
    Publication Date: 2021-07-10
    Description: During the winter of 1982-1983, a combination of high tides, higher than normal sea level and storm-induced waves were devastating to the coast of California. Damage estimates for public and private property destruction in the coastal counties of California totaled over $100,000,000.Much higher than average sea levels played a very important contributory role in the flooding damage. These unusually high sea levels were due to a combination of higher than normal mixed layer temperature associated with a strong, 2-year El Nino, storm surge due to low atmospheric pressure and persistent winds, and the cumulative effect of steady, "global" rise in relative sea level.Higher than average high tides coincided to an unusual extent with the peak sea levels reached during the numerous storms between November 1982 and March 1983. Important cyclical variations occur in California's mixed tide regime and the consequences of these on extreme tides have not been properly considered previously. In fact, erroneous "predictions" of much higher tides in the 1990's appearing in the popular press during the 1982-83 flooding, caused much public apprehension.
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
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    High-resolution natural recording systems: intercomparisons of the response to interannual climatic variability [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14330 | 8 | 2014-01-27 23:57:50 | 14330
    Details
    Publication Date: 2021-07-10
    Description: The goal of this work is to examine the properties of recording mechanisms which are common to continuously recording high-resolution natural systems in which climatic signals are imprinted and preserved as proxy records. These systems produce seasonal structures as an indirect response to climatic variability over the annual cycle. We compare the proxy records from four different high-resolution systems: the Quelccaya ice cap of the Peruvian Andes;composite tree ring growth from southern California and the southwestern United States; and the marine varve sedimentation systems in the Santa Barbara basin (off California, United States) and in the Gulf of California, Mexico. An important focus of this work is to indicate how the interannual climatic signal is recorded in a variety of different natural systems with vastly different recording mechanisms and widely separated in space. These high-resolution records are the products of natural processes which should be comparable, to some degree, to human-engineered systems developed to transmit and record physical quantities. We therefore present a simple analogy of a data recording system as a heuristic model to provide some unifying concepts with which we may better understand the formation of the records. This analogy assumes special significance when we consider that natural proxy records are the principal means to extend our knowledge of climatic variability into the past, beyond the limits of instrumentally recorded data.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    Subsurface El Nino and anti-El Nino signals in the California Current [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14326 | 8 | 2014-01-27 23:26:26 | 14326
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    Publication Date: 2021-07-10
    Keywords: Oceanography ; PACLIM
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    On the trail of interannual variability in phytoplankton and climate [abstract and figures] (2021)
    In:  http://aquaticcommons.org/id/eprint/14409 | 8 | 2014-02-07 22:55:40 | 14409
    Details
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):A selective but nontheless real record of phytoplankton activity over the Santa Barbara Basin can be obtained from the underlying varved sediments. The phytoplankton groups preserved are: diatoms (frustrules and spores), silicoflagellates, dinoflagellates (cysts) and coccoliths.
    Keywords: Earth Sciences ; Oceanography ; PACLIM
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    A mechanism for the link between solar-irradiance variations and regional precipitation (2021)
    In:  http://aquaticcommons.org/id/eprint/14466 | 8 | 2014-02-14 01:14:53 | 14466
    Details
    Publication Date: 2021-06-25
    Description: Although the mechanisms of climatic fluctuations are not completely understood, changes in global solar irradiance show a link with regional precipitation. A proposed mechanism for this linkage begins with absorption of varying amounts of solar energy by tropical oceans, which may aid in development of ocean temperature anomalies. These anomalies are then transported by major ocean currents to locations where the stored energy is released into the atmosphere, altering pressure and moisture patterns that can ultimately affect regional precipitation. Correlation coefficients between annual averages of monthly differences in empirically modeled solar-irradiance variations and annual state-divisional precipitation values in the United States for 1950 to 1988 were computed with lag times of 0 to 7 years. The highest correlations (R=0.65) occur in the Pacific Northwest with a lag time of 4 years, which is about equal to the travel time of water within the Pacific Gyre from the western tropical Pacific Ocean to the Gulf of Alaska. With positive correlations, droughts coincide with periods of negative irradiance differences (dry, high-pressure development), and wet periods coincide with periods of positive differences (moist, low-pressure development).
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
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    Subsurface ocean temperature signals on west coast of North America [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14418 | 8 | 2014-02-07 22:27:32 | 14418
    Details
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Data were extracted from the U.S. Navy Fleet Numerical Oceanographic Center Master Oceanographic Observation Data Set for a 200 km to 300 km wide coastal strip on the west coast of the United States. These data were averaged for the September through February (winter) and March through August (summer) intervals. The resulting winter temperature anomaly values show the El Nino signal in the CCC [Coastal California Current] as positive temperature anomalies from the surface to at least 300 m.
    Keywords: Oceanography ; PACLIM
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    Record of the 1983 El Nino in Santa Barbara basin [abstract] (2021)
    In:  http://aquaticcommons.org/id/eprint/14431 | 8 | 2014-02-05 23:47:05 | 14431
    Details
    Publication Date: 2021-07-11
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):The 1983 El Nino resulted in a decrease in the flux of diatoms and planktonic foraminiferans into the Santa Barbara basin. These may both be related to the decrease in productivity and therefore standing crops of these two groups.
    Keywords: Oceanography ; PACLIM
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    Effects of El Niño–Southern Oscillation events on catches of Bigeye Tuna (Thunnus obesus) in the eastern Indian Ocean off Java (2021)
    In:  vegha16@gmail.com | http://aquaticcommons.org/id/eprint/14502 | 403 | 2014-02-13 04:15:55 | 14502 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-26
    Description: The effects of El Niño–Southern Oscillation events on catches of Bigeye Tuna (Thunnus obesus) in the eastern Indian Ocean (EIO) off Java were evaluated through the use of remotely sensed environmental data (sea-surface-height anomaly [SSHA], sea-surface temperature [SST], and chlorophyll a concentration), and Bigeye Tuna catch data. Analyses were conducted for the period of 1997–2000, which included the 1997–98 El Niño and 1999–2000 La Niña events. The empirical orthogonal function (EOF) was applied to examine oceanographic parameters quantitatively. The relationship of those parameters to variations in catch distribution of Bigeye Tuna was explored with a generalized additive model (GAM). The mean hook rate was 0.67 during El Niño and 0.44 during La Niña, and catches were high where SSHA ranged from –21 to 5 cm, SST ranged from 24°C to 27.5°C, and chlorophyll-a concentrations ranged from 0.04 to 0.16 mg m–3. The EOF analysis confirmed that the 1997–98 El Niño affected oceanographic conditions in the EIO off Java. The GAM results indicated that SST was better than the other environmental factors (SSHA and chlorophyll-a concentration) as an oceanographic predictor of Bigeye Tuna catches in the region. According to the GAM predictions, the highest probabilities (70–80%) for Bigeye Tuna catch in 1997–2000 occurred during oceanographic conditions during the 1997–98 El Niño event.
    Keywords: Biology ; Ecology ; Fisheries ; Oceanography
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    Domoic acid contamination within eight representative species from the benthic food web of Monterey Bay, California, USA (2021)
    In:  rikk_kvitek@csumb.edu | http://aquaticcommons.org/id/eprint/14907 | 403 | 2014-03-11 17:26:19 | 14907 | United States National Ocean Service
    Details
    Publication Date: 2021-06-28
    Description: Benthic food webs often derive a significant fraction of their nutrient inputs from phytoplankton in the overlying waters. If the phytoplankton include harmful algal species like Pseudo-nitzschia australis, a diatom capable of producing the neurotoxin domoic acid (DA), the benthic food web can become a depository for phycotoxins. We tested the general hypothesis that DA contaminates benthic organisms during local blooms of P. australis, a widespread toxin producer along the US west coast. To test for trophic transfer and uptake of DA into the benthic food web, we sampled 8 benthic species comprising 4 feeding groups: filter feeders (Emerita analoga and Urechis caupo); a predator (Citharichthys sordidus); scavengers (Nassarius fossatus and Pagurus samuelis) and deposit feeders (Neotrypaea californiensis, Dendraster excentricus and Olivella biplicata). Sampling occurred before, during and after blooms of P. australis in Monterey Bay, CA, USA during 2000 and 2001. DA was detected in all 8 species, with contamination persisting over variable time scales. Maximum DA levels in N. fossatus (674 ppm), E. analoga (278 ppm), C. sordidus (515 ppm), N. californiensis (145 ppm), P. samuelis (56 ppm), D. excentricus (15 ppm) and O. biplicata (3 ppm) coincided with P. australis blooms, while DA levels in U. caupo remained above 200 ppm (max. = 751 ppm) throughout the study period. DA in 6 species exceeded levels thought to be safe for higher level consumers (i.e. ≥20 ppm) and thus is likely to have deleterious effects on marine birds, sea lions and the endangered California sea otter, known to prey upon these benthic species.
    Keywords: Chemistry ; Fisheries ; Pollution
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    Boat wakes and their influence on erosion in the Atlantic Intracoastal Waterway, North Carolina (2021)
    NOAA/National Centers for Coastal Ocean Science | Beaufort, NC
    In:  http://aquaticcommons.org/id/eprint/14939 | 403 | 2014-03-17 18:38:51 | 14939 | United States National Ocean Service
    Details
    Publication Date: 2021-06-29
    Description: Boat wakes in the Atlantic Intracoastal Waterway (AIWW) of North Carolina occur in environments not normally subjected to (wind) wave events, making sections of AIWW potentially vulnerable to extreme wave events generated by boat wakes. The Snow’s Cut area that links the Cape Fear River to the AIWW is an area identified by the Wilmington District of the U.S. Army Corps of Engineers as having significant erosion issues; it was hypothesized that this erosion could be being exacerbated by boat wakes. We compared the boat wakes for six combinations of boat length and speed with the top 5% wind events. We also computed the benthic shear stress associated with boat wakes and whether sediment would move (erode) under those conditions. Finally, we compared the transit time across Snow’s Cut for each speed. We focused on two size classes of V-hulled boats (7 and 16m) representative of AIWW traffic and on three boat speeds (3, 10 and 20 knots). We found that at 10 knots when the boat was plowing and not yet on plane, boat wake height and potential erosion was greatest. Wakes and forecast erosion were slightly mitigated at higher, planing speeds. Vessel speeds greater than 7 knots were forecast to generate wakes and sediment movement zones greatly exceeding that arising from natural wind events. We posit that vessels larger than 7m in length transiting Snow’s Cut (and likely many other fetch-restricted areas of the AIWW) frequently generate wakes of heights that result in sediment movement over large extents of the AIWW nearshore area, substantially in exceedance of natural wind wave events. If the speed, particularly of large V-hulled vessels (here represented by the 16m length class), were reduced to pre-plowing levels (~ 7 knots down from 20), transit times for Snow’s Cut would be increased approximately 10 minutes but based on our simulations would likely substantially reduce the creation of erosion-generating boat wakes. It is likely that boat wakes significantly exceed wind wave background for much of the AIWW and similar analyses may be useful in identifying management options.
    Keywords: Earth Sciences ; Management ; Oceanography
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    ColacMarCuba XIII Congreso Latinoamericano de Ciencias del Mar COLACMAR.VIII Congreso de Ciencias del Mar MarCuba. 4to. Taller Internacional PESCA'2009. (2021)
    Comité Oceanográfico Nacional | La Habana, Cuba
    In:  http://aquaticcommons.org/id/eprint/14976 | 1545 | 2014-05-09 22:58:38 | 14976 | Acuario Nacional de Cuba
    Details
    Publication Date: 2021-06-30
    Description: Contiene los trabajos presentados, el programa científico y el perfil de instituciones marinas cubanas. Contains abstracts of the papers presented, the scientific program and the profile of Cuban marine institutions.
    Description: IAEA International Atomic Energy Agency
    Keywords: Conservation ; Ecology ; Fisheries ; Oceanography ; coastal zone ; marine resources ; aquaculture ; aquariology education ; genetics ; marine pollution ; microbiology ; zona costera ; recursos marinos ; acuacultura ; acuariología ; educación ; genética ; contaminación marina ; microbiología ; marine biodiversity ; biodiversidad marina ; congresos ; congress ; manejo integrado de la zona costera ; integrated management of the coastal zone ; simposio ; symposium ; cambio climático ; climate change ; Centro de Ingeniería y Manejo Ambiental de Bahías y Costas- CIMAB ; Instituto de Oceanología ; Instituto de Geología y Paleontología ; Acuario Nacional de Cuba ; taller ; workshop ; pesca ; fishery ; Cuba ; Congreso Latinoamericano ; ColacMarCuba ; Latin American Congress ; University for all ; Universidad para todos ; tabloides ; Conozcamos el Mar ; El Mundo subterráneao ; El Mar y sus recursos ; mamíferos marinos ; marine mammals ; biotechnology ; biotecnología ; marine ecosystem ; ecosistemas marinos ; marine sciences ; ciencias marinas ; CIM ; CIP ; conferencias ; conferences ; mesas redondas ; courses ; cursos.
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    Field manual for investigating coral disease outbreaks (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14918 | 403 | 2014-03-10 20:45:21 | 14918 | United States National Ocean Service
    Details
    Publication Date: 2021-06-28
    Description: Coral reefs throughout their circumtropical range are declining at an accelerating rate. Recent predictions indicate that 20% of the world’s reefs have been degraded, another 24% are under imminent risk of collapse, and if current estimates hold, by 2030, 26% of the world’s reefs will be lost (Wilkinson 2004). Recent changes to these ecosystems have included losses of apex predators, reductions of important herbivorous fishes and invertebrates, and precipitous declines in living coral cover, with many reefs now dominated by macroalgae. Causes have been described in broad sweeping terms: global climate change, over-fishing and destructive fishing, land-based sources of pollution, sedimentation, hurricanes, mass bleaching events and disease. Recognition that corals can succumb to disease was first reported in the early 1970’s. Then it was a unique observation, with relatively few isolated reports until the mid 1990’s. Today disease has spread to over 150 species of coral, reported from 65 countries throughout all of the world’s tropical oceans (WCMC Global Coral Disease Database). While disease continues to increase in frequency and distribution throughout the world, definitive causes of coral diseases have remained elusive for the most part, with reef managers not sufficiently armed to combat it.
    Description: NOAA Technical Memorandum Coral Reef Conservation Program 6
    Keywords: Fisheries ; Health ; Management ; Pollution
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    Field applications of the second-generation Environmental Sample Processor (ESP) for remote detection of harmful algae: 2006-2007 (2021)
    In:  dgreenfield@belle.baruch.sc.edu | http://aquaticcommons.org/id/eprint/14913 | 403 | 2014-03-11 17:38:22 | 14913 | United States National Ocean Service
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    Publication Date: 2021-06-28
    Description: We assess the application of the second-generation Environmental Sample Processor (ESP) for the detection of harmful algal bloom (HAB) species in field and laboratory settings using two molecular probe techniques: a sandwich hybridization assay (SHA) and fluorescent in situ hybridization (FISH). During spring 2006, the first time this new instrument was deployed, the ESP successfully automated application of DNA probe arrays for various HAB species and other planktonic taxa, but non-specific background binding on the SHA probe array support made results interpretation problematic. Following 2006, the DNA array support membrane that we were using was replaced with a different membrane, and the SHA chemistry was adjusted. The sensitivity and dynamic range of these modifications were assessed using 96-well plate and ESP array SHA formats for several HAB species found commonly in Monterey Bay over a range of concentrations; responses were significantly correlated (p 〈 0.01). Modified arrays were deployed in 2007. Compared to 2006, probe arrays showed improved signal:noise, and remote detection of various HAB species was demonstrated. We confirmed that the ESP and affiliated assays can detect HAB populations at levels below those posing human health concerns, and results can be related to prevailing environmental conditions in near real-time.
    Keywords: Ecology ; Management ; Pollution
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    Ancillary methods of the National Status and Trends Program: update 2000-2006 (2021)
    NOAA/National Ocean Service | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14610 | 403 | 2014-02-20 21:33:38 | 14610 | United States National Ocean Service
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    Publication Date: 2021-06-29
    Keywords: Ecology ; Fisheries ; Management ; Pollution
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    Effects of density-dependence and sea surface temperature on interannual variation in length-at-age of chub mackerel (Scomber japonicus) in the Kuroshio-Oyashio area during 1970–1997 (2021)
    In:  http://aquaticcommons.org/id/eprint/15041 | 403 | 2014-05-27 14:12:39 | 15041 | United States National Marine Fisheries Service
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    Publication Date: 2021-07-01
    Description: Annual mean fork length (FL) of the Pacific stock of chub mackerel (Scomber japonicus) was examined for the period of 1970–97. Fork length at age 0 (6 months old) was negatively correlated with year-class strength which fluctuated between 0.2 and 14 billion in number for age-0 fish. Total stock biomass was correlated with FL at age but was not a significant factor. Sea surface temperature (SST) between 38–40°N and 141–143°E during April–June was also negatively correlated with FL at age 0. A modified von Bertalanffy growth model that incorporated the effects of population density and SST on growth was well fitted to the observed FL at ages. The relative FL at age 0 for any given year class was maintained throughout the life span. The variability in size at age in the Pacific stock of chub mackerel is largely attributable to growth during the first six months after hatching.
    Keywords: Ecology ; Fisheries ; Oceanography
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    Characterization of toxic impacts on living marine resources in tidal rivers of the Chesapeake Bay (2021)
    NOAA/National Ocean Service | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14622 | 403 | 2014-02-21 21:38:49 | 14622 | United States National Ocean Service
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    Publication Date: 2021-06-30
    Description: In 1999, the Chesapeake Bay Program completed a survey of existing data on chemical contaminants and the potential for bioeffects in 38 tidal river systems of Chesapeake Bay.This review led to the identification of 20 areas for which there were insufficient data to adequately characterize the potential for contaminant bioeffects on the Bay’s livingresources. The goal of the present study was to estimate the current status of ecological condition in five of these areas and thus help to complete the overall toxics inventory for the Bay. These five systems included the Chester River, Nanticoke River, Pocomoke River, Lower Mobjack Bay (Poquosin and Back Rivers) and the South and Rhode Rivers. This study utilized a Sediment Quality Triad (SQT) approach in combination with additional water-column contaminant analysis to allow for a “weight of evidence”assessment of environmental condition. A total of 60 stations distributed among the five systems, using a probabilistic stratified random design, were sampled during the summer of 2004 to allow for synoptic measures of sediment contamination, sediment toxicity, and benthic condition. Upon completion of all analyses, stations were assigned to one of four categories based on the three legs of the triad. Stations with high sediment quality had nohits on any of the three legs of the triad; those with moderate quality had one hit; those with marginal quality had two hits; and those with poor quality had hits for all three legs of the triad. The Pocomoke River had by far the largest proportion of the total area (97.5%) classified as having high sediment quality, while the Rhode/South system had the highest proportion (11.4%) classified as poor. None of the stations in the Chester River, Nanticoke River, and Lower Mobjack Bay systems were classified as poor. Morethan 65% of the area of each of the five systems was classified with high to moderate sediment quality. The Rhode/South system had 30.4% of total area classified withmarginally to severely poor quality. The results of this study highlight the importance of using multiple indicators and a “weight of evidence” approach to characterizeenvironmental quality and the potential bioeffects of toxic contaminants.
    Keywords: Ecology ; Fisheries ; Management ; Pollution
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    National Status and Trends Bioeffects Program: field methods (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14663 | 403 | 2014-02-24 20:07:47 | 14663 | United States National Ocean Service
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    Publication Date: 2021-07-01
    Description: Environmental quality indicators provide resource managers with information useful to assess coastal condition and scientifically defensible decisions. Since 1984, the National Oceanic and Atmospheric Administration (NOAA), through its National Status and Trends (NS&T) Program, has provided environmental monitoring data on chemical, physical, and biological indicators of coastal environments. The program has two major monitoring components to meet its goals. The Bioeffects Assessments Program evaluates the health of bays, estuaries, and the coastal zone around the nation using the Sediment Quality Triad technique that includes measuring sediment contaminant concentrations, sediment toxicity and benthic community structure. The Mussel Watch Program is responsible for temporal coastal monitoring of contaminant concentrations by quantifying chemicals in bivalve mollusks. The NS&T Program is committed to providing the highest quality data to meet its statutory and scientific responsibilities. Data, metadata and information products are managed within the guidance protocols and standards set forth by NOAA’s Integrated Ocean Observing System (IOOS) and the National Monitoring Network, as recommended by the 2004 Ocean Action Plan. Thus, to meet these data requirements, quality assurance protocols have been an integral part of the NS&T Program since its inception. Documentation of sampling and analytical methods is an essential part of quality assurance practices. A step-by–step summary of the Bioeffects Program’s field standard operation procedures (SOP) are presented in this manual.
    Keywords: Ecology ; Fisheries ; Pollution
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    Deepwater Horizon oil spill: assessment of potential impacts on the deep soft-bottom benthos; interim data summary report (2021)
    NOAA/National Centers for Coastal Ocean Science | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14662 | 403 | 2014-02-21 22:08:38 | 14662 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: A study was initiated in May 2011, under the direction of the Deepwater Horizon (DWH) Natural Resource Damage Assessment (NRDA) Deepwater Benthic Communities Technical Working Group (NRDA Deep Benthic TWG), to assess potential impacts of the DWH oil spill on sediments and resident benthic fauna in deepwater (〉 200 meters) areas of the Gulf. Key objectives of the study were to complete the analysis of samples from 65 priority stations sampled in September-October 2010 on two DWH Response cruises (Gyre and Ocean Veritas) and from 38 long-term monitoring sites (including a subset of 35 of the original 65) sampled on a follow-up NRDA cruise in May-June 2011. The present progress report provides a brief summary of results from the initial processing of samples from fall 2010 priority sites (plus three additional historical sites). Data on key macrofaunal, meiofaunal, and abiotic environmental variables are presented for each of these samples and additional maps are included to depict spatial patterns in these variables throughout the study region. The near-field zone within about 3 km of the wellhead, where many of the stations showed evidence of impaired benthic condition (e.g. low taxa richness, high nematode/harpacticoid-copepod ratios), also is an area that contained some of the highest concentrations of total petroleum hydrocarbons (TPH), total polycyclic aromatic hydrocarbons (total PAHs), and barium in sediments (as possible indicators of DWH discharges). There were similar co-occurrences at other sites outside this zone, especially to the southwest of the wellhead out to about 15 km. However, there also were exceptions to this pattern, for example at several farther-field sites in deeper-slope and canyon locations where there was low benthic species richness but no evidence of exposure to DWH discharges. Such cases are consistent with historical patterns of benthic distributions in relation to natural controlling factors such as depth, position within canyons, and availability of organic matter derived from surface-water primary production.
    Keywords: Biology ; Ecology ; Fisheries ; Pollution
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    Cruise report: assessment of ecological condition and stressor impacts within Great Lakes Region Areas of Concern (AOCs): Ashtabula River and Milwaukee Estuary (August 18-25, 2012) (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  Cynthia.Cooksey@noaa.gov | http://aquaticcommons.org/id/eprint/14669 | 403 | 2014-02-24 19:51:34 | 14669 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Keywords: Biology ; Ecology ; Fisheries ; Health ; Pollution
    Repository Name: AquaDocs
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    Assessment of contaminant body burdens and histopathology of fish and shellfish species frequently used for subsistence food by Alaskan Native communities (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14666 | 403 | 2014-02-26 20:27:41 | 14666 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: Subsistence food items can be a health concern in rural Alaska because community members often rely on fish and wildlife resources not routinely monitored for persistent bioaccumulative contaminants and pathogens. Subsistence activities are a large part of the traditional culture, as well as a means of providing protein in the diets for Tribal members. In response to the growing concerns among Native communities, contaminant body burden and histopathological condition of chum and sockeye salmon(Oncorhynchus keta and Oncorhynchus nerka) and the shellfish cockles and softshell clams (Clinocardium nuttallii and Mya arenaria) were assessed. In the Spring of 2010, the fish and shellfish were collected from traditional subsistence harvest areas in the vicinity of Nanwalek, Port Graham, and Seldovia, AK, and were analyzed for trace metals and residues of organic contaminants routinely monitored by the NOAA National Status & Trends Program (NS&T). Additionally, the fish and shellfish were histologically characterized for the presence, prevalence and severity of tissue pathology, disease, and parasiteinfection. The fish and shellfish sampled showed low tissue contamination, and pathologic effects of the parasites and diseases were absent or minimal. Taken together, the results showed that the fish and shellfish were healthy and pose no safety concern for consumption. This study provides reliable chemistry and histopathology information for local resource managers and Alaska Native people regarding subsistence fish and shellfish use and management needs.
    Keywords: Fisheries ; Health ; Pollution
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    Increased toxicity of Karenia brevis during phosphate limited growth: ecological and evolutionary implications (2021)
    In:  http://aquaticcommons.org/id/eprint/14664 | 403 | 2014-02-26 20:25:41 | 14664 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: Karenia brevis is the dominant toxic red tide algal species in the Gulf of Mexico. It produces potent neurotoxins (brevetoxins [PbTxs]), which negatively impact human and animal health, local economies, and ecosystem function. Field measurements have shown that cellular brevetoxin contents vary from 1–68 pg/cell but the source of this variability is uncertain. Increases in cellular toxicity caused by nutrient-limitation and inter-strain differences have been observed in many algal species. This study examined the effect of P-limitation of growth rate on cellular toxin concentrations in five Karenia brevis strains from different geographic locations. Phosphorous was selected because of evidence for regional P-limitation of algal growth in the Gulf of Mexico. Depending on the isolate, P-limited cells had 2.3- to 7.3-fold higher PbTx per cell than P-replete cells. The percent of cellular carbon associated with brevetoxins (%C-PbTx) was ~ 0.7 to 2.1% in P-replete cells, but increased to 1.6–5% under P-limitation. Because PbTxs are potent anti-grazing compounds, this increased investment in PbTxs should enhance cellular survival during periods of nutrient-limited growth. The %C-PbTx was inversely related to the specific growth rate in both the nutrient-replete and P-limited cultures of all strains. This inverse relationship is consistent with an evolutionary tradeoff between carbon investment in PbTxs and other grazing defenses, and C investment in growth and reproduction. In aquatic environments where nutrient supply and grazing pressure often vary on different temporal and spatial scales, this tradeoff would be selectively advantageous as it would result in increased net population growth rates. The variation in PbTx/cell values observed in this study can account for the range of values observed in the field, including the highest values, which are not observed under N-limitation. These results suggest P-limitation is an important factor regulating cellular toxicity and adverse impacts during at least some K. brevis blooms.
    Keywords: Biology ; Ecology ; Health ; Management ; Pollution
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    Deep-sea benthic footprint of the Deepwater Horizon blowout (2021)
    In:  http://aquaticcommons.org/id/eprint/14671 | 403 | 2014-02-26 20:32:27 | 14671 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: The Deepwater Horizon (DWH) accident in the northern Gulf of Mexico occurred on April 20, 2010 at a water depth of 1525 meters, and a deep-sea plume was detected within one month. Oil contacted and persisted in parts of the bottom of the deep-sea in the Gulf of Mexico. As part of the response to the accident, monitoring cruises were deployed in fall 2010 to measure potential impacts on the two main soft-bottom benthic invertebrate groups: macrofauna and meiofauna. Sediment was collected using a multicorer so that samples for chemical, physical and biological analyses could be taken simultaneously and analyzed using multivariate methods. The footprint of the oil spill was identified by creating a new variable with principal components analysis where the first factor was indicative of the oil spill impacts and this new variable mapped in a geographic information system to identify the area of the oil spill footprint. The most severe relative reduction of faunal abundance and diversity extended to 3 km from the wellhead in all directions covering an area about 24 km2. Moderate impacts were observed up to 17 km towards the southwest and 8.5 km towards the northeast of the wellhead, covering an area 148 km2. Benthic effects were correlated to total petroleum hydrocarbon, polycyclic aromatic hydrocarbons and barium concentrations, and distance to the wellhead; but not distance to hydrocarbon seeps. Thus, benthic effects are more likely due to the oil spill, and not natural hydrocarbon seepage. Recovery rates in the deep sea are likely to be slow, on the order of decades or longer.
    Keywords: Ecology ; Fisheries ; Health ; Pollution
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    Osmotic stress does not trigger brevetoxin production in the dinoflagellate Karenia brevis (2021)
    In:  http://aquaticcommons.org/id/eprint/14673 | 403 | 2014-03-07 19:24:31 | 14673 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: With the global proliferation of toxic Harmful Algal Bloom (HAB) species, there is a need to identify the environmental and biological factors that regulate toxin production. One such species, Karenia brevis, forms nearly annual blooms that threaten coastal regions throughout the Gulf of Mexico. This dinoflagellate produces brevetoxins, potent neurotoxins that cause neurotoxic shellfish poisoning and respiratory illness in humans, as well as massive fish kills. A recent publication reported that a rapid decrease in salinity increased cellular toxin quotas in K. brevis and hypothesized that brevetoxins serve a role in osmoregulation. This finding implied that salinity shifts could significantly alter the toxic impacts of blooms. We repeated the original experiments separately in three different laboratories and found no evidence for increased brevetoxin production in response to low-salinity stress in any of the eight K. brevis strains we tested, including three used in the original study. Thus, we find no support for an osmoregulatory function of brevetoxins. The original publication also stated that there was no known cellular function for brevetoxins. However, there is increasing evidence that brevetoxins promote survival of the dinoflagellates by deterring grazing by zooplankton. Whether they have other as yet unidentified cellular functions is currently unknown.
    Keywords: Chemistry ; Fisheries ; Pollution
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    Ecological condition of coastal ocean waters of the northwestern Gulf of Mexico: 2011 (2021)
    NOAA/National Centers for Coastal Ocean Science | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14670 | 403 | 2014-02-24 19:35:19 | 14670 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: In August 2011, the NOAA National Ocean Service (NOS) conducted an assessment of the status of ecological condition of soft-bottom habitat and overlying waters of the continental shelf in the northwestern Gulf of Mexico (GOM). The original sampling design included 50 randomly selected sites from the Mississippi River delta to the U.S./Mexican border, representing a total area of 111,162 square kilometers; however, vessel failures and inclement weather precluded sampling at 16 sites in the western-most part of the study region. Sampling was completed at the remaining 34 sites in offshore waters between the Mississippi River delta and Freeport, Texas, representing an estimated 75,591 square kilometers. Field sampling followed standard methods and indicators applied in prior NOAA coastal studies and EPA’s Environmental Monitoring and Assessment Program (EMAP) and National Coastal Assessment (NCA). A key feature adopted from these studies was the incorporation of a random probabilistic sampling design. Such a design provides a basis for making unbiased statistical estimates of the spatial extent of ecological condition relative to various measured indicators and corresponding thresholds of concern. Indicators included multiple measures of water quality, sediment quality, and biological condition (benthic fauna, fish tissue contaminant levels). Water depths ranged from 13 – 83 m throughout the study area. About 9 % of the area had sediments composed of sands (〈 20 % silt+clay), 47 % of the area was composed of intermediate muddy sands (20 – 80 % silt+clay), and 44 % of the sampled area consisted of mud (〉 80 % silt+clay). About 50 % of the area (represented by 17 sites) had sediment total organic carbon (TOC) concentrations 〈 5 mg/g and all of the sites sampled had levels of TOC 〈 20 mg/g, well below the range associated with potentially harmful effects to benthic fauna (〉 50 mg/g). Surface salinities ranged from 23.4 – 36.5 psu, with salinity generally increasing with distance west of the Mississippi River delta. Bottom salinities varied between 31.1 and 36.5 psu, with lowest values occurring at shallow, inner-shelf stations. Surface-water temperatures varied between 29.8 and 31.5 ºC, while near-bottom waters ranged in temperature from 19.4 – 31 ºC. An index of density stratification (Δσt) indicated that portions of coastal shelf waters in the northwestern GOM at the time of this sampling were strongly stratified. Values of Δσt at 19 of the 34 sites sampled in this study (56 % of the study area) ranged from 2.2 to 12.4, which is within the range considered to be indicative of strong vertical stratification (Δσt 〉 2). Stratification was strongest close to the Mississippi River delta, and decreased with distance west of the delta.
    Keywords: Ecology ; Health ; Pollution
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    Global transcriptional responses of the toxic cyanobacterium, Microcystis aeruginosa, to nitrogen stress, phosphorus stress, and growth on organic matter (2021)
    In:  http://aquaticcommons.org/id/eprint/14675 | 403 | 2014-02-26 20:59:02 | 14675 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: Whole transcriptome shotgun sequencing (RNA-seq) was used to assess the transcriptomic response of the toxic cyanobacterium Microcystis aeruginosa during growth with low levels of dissolved inorganic nitrogen (low N), low levels of dissolved inorganic phosphorus (low P), and in the presence of high levels of high molecular weight dissolved organic matter (HMWDOM). Under low N, one third of the genome was differentially expressed, with significant increases in transcripts observed among genes within the nir operon, urea transport genes (urtBCDE), and amino acid transporters while significant decreases in transcripts were observed in genes related to photosynthesis. There was also a significant decrease in the transcription of the microcystin synthetase gene set under low N and a significant decrease in microcystin content per Microcystis cell demonstrating that N supply influences cellular toxicity. Under low P, 27% of the genome was differentially expressed. The Pho regulon was induced leading to large increases in transcript levels of the alkaline phosphatase phoX, the Pst transport system (pstABC), and the sphX gene, and transcripts of multiple sulfate transporter were also significantly more abundant. While the transcriptional response to growth on HMWDOM was smaller (5–22% of genes differentially expressed), transcripts of multiple genes specifically associated with the transport and degradation of organic compounds were significantly more abundant within HMWDOM treatments and thus may be recruited by Microcystis to utilize these substrates. Collectively, these findings provide a comprehensive understanding of the nutritional physiology of this toxic, bloom-forming cyanobacterium and the role of N in controlling microcystin synthesis.
    Keywords: Ecology ; Fisheries ; Pollution
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    An assessment of chemical contaminants detected in passive water samplers deployed in the St. Thomas East End Reserves (STEER) (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14678 | 403 | 2014-02-24 20:59:15 | 14678 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: This report is the second in a series from a project to assess land-based sources of pollution (LBSP) and effects in the St. Thomas East End Reserves (STEER) in St. Thomas, USVI, and is the result of a collaborative effort between NOAA’s National Centers for Coastal Ocean Science, the USVI Department of Planning and Natural Resources, the University of the Virgin Islands, and The Nature Conservancy.Passive water samplers (POCIS) were deployed in the STEER in February 2012. Developed by the US Geological Survey(USGS) as a tool to detect the presence of water solublecontaminants in the environment, POCIS samplers were deployed in the STEER at five locations. In addition to the February 2012 deployment, the results from an earlier POCIS deployment in May 2010 in Turpentine Gut, a perennial freshwater stream which drains to the STEER, are also reported.A total of 26 stormwater contaminants were detected at least once during the February 2012 deployment in the STEER. Detections were high enough to estimate ambient water concentrations for nine contaminants using USGS sampling rate values. From the May 2010 deployment in Turpentine Gut, 31 stormwater contaminants were detected, and ambient water concentrations could be estimated for 17 compounds.Ambient water concentrations were estimated for a numberof contaminants including the detergent/surfactant metabolite 4-tert-octylphenol, phthalate ester plasticizers DEHP and DEP, bromoform, personal care products including menthol, indole, n,n-diethyltoluamide (DEET), along with the animal/plant sterol cholesterol, and the plant sterol beta-sitosterol. Only DEHP appeared to have exceeded a water quality guideline for the protection of aquatic organisms.
    Keywords: Chemistry ; Environment ; Pollution
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    The distribution of larval fishes of the Charleston Gyre Region off the southeastern United States in winter shaped by mesoscale, cyclonic eddies (2021)
    In:  http://aquaticcommons.org/id/eprint/14680 | 403 | 2014-02-28 19:37:37 | 14680 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: Serial, cyclonic, mesoscale eddies arise just north of the Charleston Bump, a topographical rise on the continentalslope and Blake Plateau, and characterize the U.S. outer shelf and upper slope in the region of the Charleston Gyre.This region was transected during the winters of 2000, 2001, and 2002, and hydrographic data and larval fishes werecollected. The hydrodynamics of the cyclonic eddies of the Charleston Gyre shape the distribution of larval fishes bymixing larvae from the outer continental shelf and the Gulf Stream and entraining them into the eddy circulation atthe peripheral margins, the wrap-around filaments. Over all years and transects (those that intercepted eddies andthose that did not), chlorophyll a concentrations, zooplankton displacement volumes, and larval fish concentrations were positively correlated. Chlorophyll a concentrations were highest in filaments that wrapped around eddies, and zooplankton displacement volumes were highest in the continental shelf–Gulf Stream–frontal mix. Overall, the concentration of all larval fishes declined from inshore to offshore with highest concentrations occurring over the outer shelf. Collections produced larvae from 91 fish families representing continental shelf and oceanic species. The larvae of shelf-spawned fishes—Atlantic Menhaden Brevoortia tyrannus, Round Herring Etrumeus teres, Spot Leiostomus xanthurus, and Atlantic Croaker Micropogonias undulatus—were most concentrated over the outer shelf and in the continental shelf–Gulf Stream–frontal mix. The larvae of ocean-spawned fishes—lanternfishes, bristlemouths, and lightfishes—were more evenly dispersed in low concentrations across the outer shelf and upper slope, the highest typically in the Gulf Stream and Sargasso Sea, except for lightfishes that were highest in the continental shelf–Gulf Stream–frontal mix. Detrended correspondence analysis rendered groups of larval fishes that corresponded with a gradient between the continental shelf and Gulf Stream and Sargasso Sea. Eddies propagate northeastward with a residence time on the outer shelf and upper slope of ∼1 month, the same duration as the larval period of most fishes. The pelagic habitat afforded by eddies and fronts of the Charleston Gyre region can be exploited as nursery areas for feeding and growth of larval fishes within the southeastern Atlantic continental shelf ecosystem of the U.S. Eddies, and the nursery habitat they provide, translocate larvae northeastward.
    Keywords: Ecology ; Fisheries ; Oceanography
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    An assessment of chemical contaminants, toxicity and benthic infauna in sediments from the St. Thomas East End Reserves (STEER) (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14679 | 403 | 2014-02-24 19:16:48 | 14679 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: This report contains a chemical and biological characterization of sediments from the St. Thomas East End Reserves (STEER) in St. Thomas, U.S. Virgin Islands (USVI). The STEER Management Plan (published in 2011) identified chemical contaminants and habitat loss as high or very high threats and called for a characterization of chemical contaminants as well as an assessment of their effects on natural resources. The baseline information contained in this report on chemical contaminants, toxicity and benthic infaunal community composition can be used to assess current conditions, as well as the efficacy of future restoration activities. In this phase of the project, 185 chemical contaminants, including a number of organic (e.g., hydrocarbons and pesticides) and inorganic (e.g., metals) compounds, were analyzed from 24 sites in the STEER. Sediments were also analyzed using a series of toxicity bioassays, including amphipod mortality, sea urchin fertilization impairment, and the cytochrome P450 Human Reporter Gene System (HRGS), along with a characterization of the benthic infaunal community. Higher levels of chemical contaminants were found in Mangrove Lagoon and Benner Bay in the western portion of the study area than in the eastern area. The concentrations of polychlorinated biphenyls (PCBs), DDT (dichlorodiphenyltrichloroethane), chlordane, zinc, copper, lead and mercury were above a NOAA sediment quality guideline at one or more sites, indicating impacts may be present in more sensitive species or life stages in the benthic environment. Copper at one site in Benner Bay, however, was above a NOAA guideline indicating that effects on benthic organisms were likely. The antifoulant boat hull ingredient tributyltin, or TBT, was found at the third highest concentration in the history of NOAA’s National Status and Trends (NS&T) Program, which monitors the Nation’s coastal and estuarine waters for chemical contaminants and bioeffects. Unfortunately, there do not appear to be any established sediment quality guidelines for TBT. Results of the bioassays indicated significant sediment toxicity in Mangrove Lagoon and Benner Bay using multiple tests. The benthic infaunal communities in Mangrove Lagoon and Benner Bay appeared severely diminished.
    Keywords: Chemistry ; Environment ; Pollution
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    Assessing the impacts of the Deepwater Horizon oil spill: the National Status and Trends Program response; a summary report of coastal contamination (2021)
    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14686 | 403 | 2014-02-24 19:58:40 | 14686 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: NOAA’s National Status and Trends Program (NS&T) collected oyster tissue and sediments for quantification of polycyclic aromatic hydrocarbons (PAHs) and petroleum associated metals before and after the landfall of oil from the Deepwater Horizon incident of 2010. These new pre- and post- landfall measurements were put into a historical context by comparing them to data collected in the region over three decades during Mussel Watch monitoring. Overall, the levels of PAHs in both sediment and oysters both pre- and post-landfall were within the range of historically observed values for the Gulf of Mexico. Some specific sites did have elevated PAH levels. While those locations generally correspond to areas in which oil reached coastal areas, it cannot be conclusively stated that the contamination is due to oiling from the Deepwater Horizon incident at these sites due to the survey nature of these sampling efforts. Instead, our data indicate locations along the coast where intensive investigation of hydrocarbon contamination should be undertaken. Post-spill concentrations of oil-related trace metals (V, Hg, Ni) were generally within historically observed ranges for a given site, however, nickel and vanadium were elevated at some sites including areas in Mississippi Sound and Galveston, Terrebonne, Mobile, Pensacola, and Apalachicola Bays. No oyster tissue metal body burden exceeded any of the United States Food and Drug Administration’s (FDA) shellfish permissible action levels for human consumption.
    Keywords: Ecology ; Fisheries ; Management ; Pollution
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    Marine cage culture and the environment: twenty-first century science informing a sustainable industry (2021)
    NOAA/National Centers for Coastal Ocean Science | Beaufort, NC
    In:  http://aquaticcommons.org/id/eprint/14685 | 403 | 2014-02-24 23:06:55 | 14685 | United States National Ocean Service
    Details
    Publication Date: 2021-07-01
    Description: Technological innovation has made it possible to grow marine finfish in the coastal and open ocean. Along with this opportunity comes environmental risk. As a federal agency charged with stewardship of the nation’s marine resources, the National Oceanic and Atmospheric Administration (NOAA) requires tools to evaluate the benefits and risks that aquaculture poses in the marine environment, to implement policies and regulations which safeguard our marine and coastal ecosystems, and to inform production designs and operational procedures compatible with marine stewardship.There is an opportunity to apply the best available science and globally proven best management practices to regulate and guide a sustainable United States (U.S.) marine finfish farming aquaculture industry. There are strong economic incentives to develop this industry, and doing so in an environmentally responsible way is possible if stakeholders, the public and regulatory agencies have a clear understanding of the relative risks to the environment and the feasible solutions to minimize, manage or eliminate those risks. This report spans many of the environmental challenges that marine finfish aquaculture faces. We believe that it will serve as a useful tool to those interested in and responsible for the industry and safeguarding the health, productivity and resilience of our marine ecosystems.This report aims to provide a comprehensive review of some predominant environmental risks that marine fish cage culture aquaculture, as it is currently conducted, poses in the marine environment and designs and practices now in use to address these environmental risks in the U.S. and elsewhere. Today’s finfish aquaculture industry has learned, adapted and improved to lessen or eliminate impacts to the marine habitats in which it operates. What progress has been made? What has been learned? How have practices changed and what are the results in terms of water quality, benthic, and other environmental effects? To answer these questions we conducted a critical review of the large body of scientific work published since 2000 on the environmental impacts of marine finfish aquaculture around the world. Our report includes results, findings and recommendations from over 420 papers, primarily from peer-reviewed professional journals. This report provides a broad overview of the twenty-first century marine finfish aquaculture industry, with a targeted focus on potential impacts to water quality, sediment chemistry, benthic communities, marine life and sensitive habitats. Other environmental issues including fish health, genetic issues, and feed formulation were beyond the scope of this report and are being addressed in other initiatives and reports. Also absent is detailed information about complex computer simulations that are used to model discharge, assimilation and accumulation of nutrient waste from farms. These tools are instrumental for siting and managing farms, and a comparative analysis of these models is underway by NOAA.
    Keywords: Aquaculture ; Environment ; Health ; Pollution
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