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  • Nigeria  (393)
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  • LUNAR AND PLANETARY EXPLORATION
  • FISON  (394)
  • Carlisle, UK
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  • 1
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    Environment Agency | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11100 | 1256 | 2013-04-03 15:27:32 | 11100 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the Report of 1996 survey of Trout Beck with particular reference to spawning gravel quality and invertebrates as a food source for salmonids produced by the Environment Agency North West. Whilst the main River Derwent is quite a high profile salmon fishery, Trout Beck is not a significant fishery in its own right, but serves to maintain the genetic integrity of the wild populations of trout and salmon in the catchment by providing a unique habitat. This survey addressed the invertebrate food availability, and additionally looked at the substrate to try to determine whether the bed type might actually be unsuitable for spawning, especially in view of the previously mentioned silt inputs.
    Description: Environment Agency Archives North West
    Description: + 1 map and 1 figure
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Trout Beck ; Inland waters ; Rivers ; Environmental survey ; Freshwater fishes ; Migratory species ; Invertebrate larvae
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 2
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11109 | 1256 | 2013-04-06 16:11:25 | 11109 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Lynher Salmon Action Plan Final document produced by the Environment Agency in 1999. This final Salmon Action Plan (SAP) for the River Lynher catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Lynher salmon stock. The actions presented within this final Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. The River Lynher salmon stock has suffered two periods of spawning target failure within the past ten years. This assessment can only be estimated and in this case is likely to be dependent on river flow and the availability of salmon to the rods as only rod catch is used in the compliance assessment.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Lynher ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 12
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  • 3
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11114 | 1256 | 2013-04-06 16:10:41 | 11114 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Tavy Salmon Action Plan Final document produced by the Environment Agency in 2000. This final Salmon Action Plan (SAP) for the River Tavy catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Tavy salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. This Action Plan aims to promote long term collaboration and co-operation between the Agency and other interested parties to effectively and efficiently manage the stock of salmon on the River Tavy.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Tavy ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 11
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  • 4
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11111 | 1256 | 2013-04-06 16:11:08 | 11111 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Plym Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Plym catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Lynher salmon stock. These issues and actions follow on from the detailed analysis of the catchment, which is presented in the River Plym SAP Consultation document.The actions presented within this final Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. The main objective of the River Plym SAP therefore, is to maintain, improve and develop the River Plym salmon stocks to a sustainable level that, on the basis of historic catch records, the catchment can clearly support. The River Plym has failed to pass its conservation limit since 1996, and the consultees felt very strongly that there were three major factors limiting the salmon stock of the River Plym.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Plym ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning target
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 14
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  • 5
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    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)
    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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  • 6
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    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)
    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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  • 7
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    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)
    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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  • 8
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    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)
    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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  • 9
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    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)
    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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  • 10
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    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)
    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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  • 11
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    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)
    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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  • 12
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    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)
    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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  • 13
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    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)
    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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  • 14
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    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)
    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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  • 15
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    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)
    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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  • 16
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    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)
    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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  • 17
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    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)
    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
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    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)
    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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  • 19
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    North West Water | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11087 | 1256 | 2013-03-29 14:16:05 | 11087 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This is the report on the strategic stock assessment survey of the Colton Beck catchment in 1994 with particular reference to salmonids in Colton Beck, River Ea, River Gilpin and Rusland Pool. This report forms one part of the third year of a triennial survey programme for the South West Cumbria and South Cumbria catchments. It was produced by the National Rivers Authority in 1994. Colton Beck had excellent densities of sea trout (Salmo trutta) and a small population of salmon (Salmo salar) in its lowest reaches. The total productivity was very good throughout the catchment. Stocking of sea trout fry in 1993 has enhanced the population with survivors through to parr probably adding to the scoring of double class A at two sites in the survey in 1994. Stocking was not undertaken in 1994, but the population appears to be maintaining itself at a very high level.
    Description: Environment Agency Archives North West
    Description: + figures and tables
    Keywords: Fisheries ; Limnology ; Management ; England ; Colton Beck ; River Ea ; River Gilpin ; Rusland pool ; Inland waters ; Rivers ; Freshwater fish ; Fish populations ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 20
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11104 | 1256 | 2013-04-06 16:13:29 | 11104 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Camel Salmon Action Plan produced by the Environment Agency in 2002. The report focuses on the River Camel Salmon Action Plan (SAP). The River Camel SAP follows the format of those completed for the Rivers Tamar, Lynher and Tavy. It is the 4th of 7 action plans that will be produced for salmon rivers managed by the Cornwall Area Fisheries, Recreation and Biodiversity Team. This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. In addition, for the first time, Salmon Action Plans have attempted to evaluate in economic terms, all of the contributory components of the salmon fishery. The River Camel Salmon Action Plan contains a description of the river catchment and highlights particular features that are relevant to the salmon population and associated fishery.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Camel ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 52
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  • 21
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11106 | 1256 | 2013-04-06 16:11:53 | 11106 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Fowey Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Fowey Salmon Action Plan (SAP). The River Fowey SAP follows the format of those completed for the Rivers Tamar, Lynher, Tavy and Camel. It is the 5th of 7 action plans that will be produced for salmon rivers managed by the Cornwall Area Fisheries, Recreation and Biodiversity Team. This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Fowey SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. Notably, there are historic workings for copper and china clay and two significant potable supply reservoirs (Siblyback and Colliford) which have been constructed within the catchment during the past 35 years. The whole of the Fowey catchment is set at the highest water quality grading of RE1 and this standard is met in all reaches of the River Fowey and its tributaries.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Fowey ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 64
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  • 22
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11112 | 1256 | 2013-04-06 16:10:59 | 11112 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Tamar Salmon Action Plan Consultation document produced by the Environment Agency in 1998. The report pays attention on the external consultation of the River Tamar Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Tamar was one of the premier salmon rivers in the West Country, supporting fifteen licensed estuary nets, and the second highest rod catch behind the River Exe. The River Tamar SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Tamar ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/msword
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  • 23
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11105 | 1256 | 2013-04-06 16:12:01 | 11105 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Camel Salmon Action Plan Final document produced by the Environment Agency in 2002. This final Salmon Action Plan (SAP) for the River Camel catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Camel salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. This Action Plan aims to promote long term collaboration and co-operation between the Agency and other interested parties to effectively and efficiently manage the stock of salmon on the River Camel.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Camel ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 11
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10904 | 1256 | 2013-03-22 13:40:38 | 10904 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the Gunnislake Fish Counter, Annual Report 1999 produced by the Environment Agency South West Region on March 2000. The report presents the daily upstream counts of migratory salmonids recorded at Gunnislake Weir fish counting station (SX 435 713) situated on the River Tamar in 1999. The counter data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the implementation of the National Spring Salmon Byelaws. The fish counter at Gunnislake is a resistivity based system (Logie 2100A – Aquantic limited) and is installed in the fish pass on the Cornish bank of the River Tamar at the head of the tide. The minimum salmon count for 1999 was 2691. The run pattern observed for salmon and sea trout in 1999 was generally consistent with that of previous years. However, the total combined annual count of salmon and sea trout migrating upstream on the River Tamar in 1999 was 25% higher than the 5 year average (1994 - 1998).
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Tamar ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 31
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10908 | 1256 | 2013-03-22 13:38:29 | 10908 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the Restormel Fish Counter, Annual Report 2001 produced by the Environment Agency South West Region on March 2002. The report presents the daily upstream counts of migratory salmonids on the River Fowey at Restormel Weir fish counting station (SX 107 613) in 2001. The counter data covers the period of the commercial salmonid net buy back scheme and the national spring salmon byelaws. These reduce the commercial netting season for salmon and sea trout to between 16 June and 31 August. The fish counter at Restormel is installed on a crump sectioned weir on the River Fowey. The fish counter is a resistivity based system and operates over all three channels of the weir. 2001 was a good year for large sea trout. The number of returning large sea trout was above average in April, May, June and July and equal to or higher than the previous recorded maximum in those months. The main run of small sea trout occurred at a similar time to previous years with the highest numbers of fish entering the Fowey during June and July.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10928 | 1256 | 2013-03-22 13:32:54 | 10928 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2007 produced by the Environment Agency South West Region on March 2008. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) over the period March 2007 to February 2008 inclusive. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws (2 March- 15 June). The minimum upstream salmon estimate for 2007, over the period July 2007 to February 2008, was 796, which is the fifth highest recorded count over the past 13 years. The number of returning salmon in 2007 suggests a downward trend in numbers since 2004. The 2007 large sea trout count is similar to 2006. Overall, the number of fish returning is still low in comparison with the 10-year average. There was a noticeable decrease in the number of small sea trout returning compared to 2006 and the 10-year average. The Fish counter at Restormel suffered several faults.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 27
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10927 | 1256 | 2013-03-22 13:33:18 | 10927 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2006 produced by the Environment Agency South West Region on March 2007. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel weir fish counting station (SX 107 613) over the period March 2006 to February 2007 inclusive. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws (2 March- 15 June inclusive). The minimum upstream salmon estimate for 2005 (1046), over the period July 2005 to February 2006, was 20% lower than that recorded over the same period in 2004 (1301). However, this is the second highest count recorded over the past 11 years. The total sea trout count (10448) was 8% higher than 2004 (9608). The number of salmon and large sea trout was lower than average in 2005. However, the overall numbers of adult salmon and sea trout returning have been increasing year on year since 1997. This overall increase in the salmon and sea trout counts, together with the consistency of the numbers of fish returning over recent years suggests that measures designed to protect salmonid stocks in the River Fowey are working.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 26
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  • 28
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10925 | 1256 | 2013-03-22 13:33:41 | 10925 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2003 produced by the Environment Agency South West Region on March 2004. The report presents the daily upstream counts of migratory salmonids recorded on the River Fowey at Restormel weir fish counting station (SX 107 613) in 2003. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws. The run pattern observed for salmon and sea trout in 2003 was generally consistent with that of previous years. The upstream salmon / large sea trout count for 2003 was 1777, 2% lower than that recorded in 2002. The overall increase in the salmon and sea trout counts, together with the consistency of the numbers over recent years suggests that measures designed to protect salmonid stocks were working.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 29
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10929 | 1256 | 2013-03-22 13:32:35 | 10929 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2008 produced by the Environment Agency South West Region on April 2009. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) over the period March 2008 to February 2009 inclusive. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws. The minimum upstream salmon estimate for 2008, over the period July 2008 to February 2009, was 938 and is the third highest recorded count over the past 14 years. The 2008 large sea trout count (482) shows a marked improvement in the number of returning fish when compared to 2007 (241). There was a significant decrease in the number of small sea trout returning in 2008 when compared to 2007 and the 10-year average.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 30
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10923 | 1256 | 2013-03-22 13:33:59 | 10923 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2002 produced by the Environment Agency South West Region on March 2003. The report presents the daily upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) in 2002. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws. The fish counter at Restormel is a resistivity based system (Logie 2100A - Aquantic limited) and is installed on the weir at Restormel approximately 2 km upstream of the tidal limit. The run pattern observed for salmon and sea trout in 2002 was generally consistent with that of previous years. The upstream salmon / large sea trout count for 2002 was 1804.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 41
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  • 31
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11107 | 1256 | 2013-04-06 16:11:45 | 11107 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Fowey Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Fowey catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Fowey salmon stock. The actions presented within this final Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. The main objective of the Fowey SAP therefore, is to maintain, improve and develop the Fowey salmon stocks to a sustainable level that, on the basis of historic catch records, the catchment can clearly support. Although the Fowey is passing its conservation limit, the consultees felt very strongly that there were two major factors limiting the salmon stock of the River Fowey- the overgrazing of Bodmin Moor and the use of the catchment for water supply by South West Water.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Fowey ; Inland waters ; Freshwater fish ; Migratory species ; Conservation limit ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 17
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  • 32
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11108 | 1256 | 2013-04-06 16:13:04 | 11108 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Lynher Salmon Action Plan Consultation document produced by the Environment Agency in 1998. The report pays attention on the external consultation of the River Lynher Salmon Action Plan (SAP). The River Lynher SAP follows that for the River Tamar and is the second of seven action plans that will be produced for salmon rivers managed by the Cornwall area fisheries department. This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Lynher SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. The analysis of recent and historical catches of salmon on the River Lynher from both the rod and net fisheries indicated the fishery's reliance upon post 1 June salmon. Historically, annual salmon catches (both rod and net) on the River Lynher have been found to consist of a much higher proportion of pre 1 June (spring) salmon. Evidence is provided that illustrates the extent of the decline within this stock component since the early 1980s.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Lynher ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10905 | 1256 | 2013-03-22 13:39:13 | 10905 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the Restormel Fish Counter, Annual Report 1999 produced by the Environment Agency South West Region on March 2000. The report presents the daily upstream counts of migratory salmonids recorded at Restormel Weir counting station (SX 107 613) River Fowey in 1999. The counter data covers the period of the commercial migratory salmonid net buy-back scheme, which was in operation between March and June 1999. The fish counter is a resistivity based system (Logie 2100 A - Aquantic limited) and operates over all three channels of the weir at Restormel. The minimum salmon count estimate was 497, and the 1999 upstream count for sea trout was 6590. The run pattern observed for salmon and sea trout in 1999 was generally consistent with that of previous years. Flows on average were half those of 1998 during September, October, and November.
    Description: : Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10907 | 1256 | 2013-03-22 13:39:40 | 10907 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the Gunnislake Fish Counter, Annual Report 2001 produced by the Environment Agency South West Region on March 2002. The report presents the daily upstream counts of migratory salmonids recorded on the River Tamar at Gunnislake Weir fish counting station (SX 435 713) situated in 2001. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws. The fish counter at Gunnislake is a resistivity based system (Logie 2100A – Aquantic limited) and is installed in the fish pass on the Cornish bank of the River Tamar at the head of the tide. The minimum salmon count for 2001 was 3138. The 2001 upstream count for sea trout was 7503. The run pattern observed for salmon and sea trout in 2001 was generally consistent with that of previous years.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Tamar ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 35
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    North West Water | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11086 | 1256 | 2013-03-29 14:18:20 | 11086 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This is the Wetland resource evaluation and the NRA's role in its conservation: Resource assessment report produced by North West Water in 1982. In this report data from a variety of sources in river Leven and Leven estuary have been examined to determine if there was any objective foundation for the allegations and for the assertion that poor fish catches were related to discharges of industrial effluent to the estuary. Catches of salmon and sea trout from the Leven did not appear to have suffered any long term declines and year to year fluctuations did not appear to be any more extreme than in other North West rivers. Fish surveys did not show any marked differences in the diversity or distribution of fish between the Kent and Leven estuaries but catches of flounders were consistently lower from the Leven estuary. Analysis of fisheries statistics of landings of fish and shellfish from Morecambe Bay did not show any evidence of localised declines in catches from the Leven estuary. Results of laboratory experiments suggested that populations of bivalve molluscs might be more at risk from the effects of discharges to the Leven estuary than resident or migratory fish.
    Description: Environment Agency Archives North West
    Description: + tables and figures
    Keywords: Ecology ; Limnology ; Management ; England ; River Leven ; Leven estuary ; Kent estuary ; Inland waters ; Rivers ; Freshwater fish ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics ; Freshwater pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 9
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11110 | 1256 | 2013-04-06 16:11:17 | 11110 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Plym Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Plym Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Plym SAP follows the format of those completed for the rivers Tamar, Lynher, Tavy, Camel and Fowey. It is the sixth of seven action plans that will be produced for salmon rivers managed by Cornwall Area. The River Plym SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. Notably, there are historic workings for china clay and a significant potable water supply at Burrator Reservoir. The main River Plym has been designated as River Ecosystem class 1 for its water quality objectives. This is the highest water quality target set for rivers. This standard has been met in all reaches of the main River Plym and River Meavy.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Plym ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 71
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11113 | 1256 | 2013-04-06 16:10:50 | 11113 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Tavy Salmon Action Plan Consultation document produced by the Environment Agency in 1999. The report pays attention on the external consultation of the River Tavy Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. In addition, salmon action plans have for the first time, attempted to evaluate in economic terms, all of the contributory components of the salmon fishery. The River Tavy Salmon Action Plan follows that for the River Tamar and River Lynher and is the third of seven action plans that will be produced for salmon rivers managed by the Cornwall Area FER department. The River Tavy SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Tavy ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11115 | 1256 | 2013-04-06 16:10:33 | 11115 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Yealm Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Yealm catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Yealm salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. The main objective of the River Yealm SAP is to maintain, improve and develop the River Yealm salmon stocks to a sustainable level that, on the basis of historic catch records, the catchment can clearly support.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Yealm ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 14
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  • 39
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11116 | 1256 | 2013-04-06 16:10:23 | 11116 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Yealm Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Yealm Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Yealm Salmon Action Plan follows the format of those completed for the rivers Tamar, Lynher, Tavy, Camel, Fowey and Plym. It is the final one of seven action plans that will be produced for salmon rivers managed by Cornwall Area. The River Yealm SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. Notably there are potable water abstractions in the headwaters, workings for china clay on the main tributary, two inert waste landfill sites and an aggregate quarry adjacent to the main river and inputs from several Sewage Treatment Works (STW) and two industrial estates. The main River Yealm has been designated as River Ecosystem Class 1 for its water quality objectives. This is the highest water quality target set for rivers.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Yealm ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10906 | 1256 | 2013-03-22 13:40:07 | 10906 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the Gunnislake Fish Counter, Annual Report 2000 produced by the Environment Agency South West Region on March 2001. The report presents the daily upstream counts of migratory salmonids recorded on the River Tamar at Gunnislake Weir fish counting station (SX 435 713) situated in 2000. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws. The fish counter at Gunnislake is a resistivity based system (Logie 2100A – Aquantic limited) and is installed in the fish pass on the Cornish bank of the River Tamar at the head of the tide. The minimum salmon count for 2000 was 2654. The 2000 upstream count for sea trout was 6417. The run pattern observed for salmon and sea trout in 2000 was generally consistent with that of previous years.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Tamar ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 42
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10924 | 1256 | 2013-03-22 13:37:09 | 10924 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Gunnislake Fish Counter, Annual Report 2003 produced by the Environment Agency South West Region on March 2004. The report presents the daily upstream counts of migratory salmonids recorded at Gunnislake weir fish counting station and trap (River Tamar SX 435 713) in 2003. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws. The total combined annual count of upstream migrating salmon and sea trout on the River Tamar in 2003 was 7% higher than the 9-year average. The minimum salmon count for 2003 was 3626. The 2003 upstream count for sea trout was 9913. Trap data for 2003 is consistent with historic trapping and net data in terms of the size split between salmon and sea trout stocks.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Tamar ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 23
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10922 | 1256 | 2013-03-22 13:36:12 | 10922 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Gunnislake Fish Counter Annual Report 2002 from the Environment Agency South West Region, which was held on March 2002. It presents the daily upstream counts of migratory salmonids recorded on the River Tamar at Gunnislake Weir fish counting station in 2002. The data within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws. The report contains section on Net Buy-Back; Species Apportionment; Validation of counter efficiency; results as total number of migratory salmonid (salmon and Sea Trout) counted moving upstream in 2002 at Gunnislake; video validation and Counter Efficiency; and Discussion. The section Discussion includes Salmon and Sea Trout counts recorded on the River Tamar 1995-2002, other fish species observed as sea lamprey and Environmental Factors (river flows, water temperature, and barometric pressure).
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Tamar ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10926 | 1256 | 2013-03-22 13:33:29 | 10926 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2005 produced by the Environment Agency South West Region on March 2006. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel weir fish counting station (SX 107 613) over the period March 2005 to February 2006 inclusive. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws (from 2 March to 15 June Inclusive). The minimum upstream salmon estimate for 2005 was 1046, this is the second highest count recorded over the past 11 years. The total sea trout count (10448) was 8% higher than 2004 (9608). This overall increase in the salmon and sea trout counts, together with the consistency of the numbers of fish returning over recent years suggests that measures designed to protect salmonid stocks in the River Fowey are working.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 25
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10930 | 1256 | 2013-03-26 14:02:51 | 10930 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2008 produced by the Environment Agency South West Region on April 2009. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) over the period March 2008 to February 2009 inclusive. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws. The minimum upstream salmon estimate for 2008, over the period July 2008 to February 2009, was 938, which is the third highest recorded count over the past 14 years. The 2008 large sea trout count (482) shows a marked improvement in the number of returning fish when compared to 2007 (241). There was a significant decrease in the number of small sea trout returning in 2008 when compared to 2007 and the 10-year average. The fish counter suffered several faults equated to 12.5 days during this period.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10931 | 1256 | 2013-03-26 14:02:00 | 10931 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2010 produced by the Environment Agency South West Region on June 2011. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) over the period March 2010 to February 2011 inclusive. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Byelaws. The minimum upstream salmon estimate for 2010, over the period July 2010 to February 2010, was 1220. The fish counter at Restormel suffered from only one major period of unscheduled downtime during 2010/2011. This was due to a counter fault over the period 21 to 30 August 2010 and equated to 10 days of downtime.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency South West Region | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10932 | 1256 | 2013-03-26 14:01:47 | 10932 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2011 produced by the Environment Agency, Environmental Monitoring Team on May 2012. The report presents the upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) over the period March 2011 to February 2012 inclusive. The minimum upstream salmon estimate for 2011, over the period July 2011 to February 2012, was 675. The minimum upstream sea trout estimate for 2011 was 10,022, which is the fifth highest count recorded in the last 17 years. The fish counter at Restormel had six periods of downtime due to counter faults which equated to 19 days of downtime overall. Fish counts were estimated for downtime caused by counter faults but not for weir cleaning due to the small numbers of fish involved.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23216 | 19325 | 2018-03-17 12:51:36 | 23216 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: This paper examines the importance of capacity building and training requirement for the benefit of fisheries and aquaculture extension in Nigeria. It involves the analysis of secondary data bothering on the management of agricultural extension in Nigeria over time vis-avis various agricultural development programmes in the past in which fisheries and aquaculture extension was apparently de-emphasized in favour of crop and livestock agriculture. It is therefore recommended as a way forward that a favorable reform in the Nigerian agricultural extension system will be a necessary avenue to put fisheries and aquaculture extension in proper perspective for effective service delivery which will be a good entry point to achieving the millennium development goals of combating hunger, extreme poverty and attainment of food security in Nigeria.
    Description: Includes:-7 refs.
    Keywords: Aquaculture ; Fisheries ; Information Management ; Nigeria ; Extension services ; freshwater environment ; Technology transfer ; Training ; Education ; Sociological aspects
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 24 -34
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23222 | 19325 | 2018-03-18 13:52:04 | 23222 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The study examined the contribution of women to fisheries in Kainji Lake Basin, Nigeria. The sample size of 80 respondents was selected through a purposive sampling in ten (10) fishing villages around Kainji Lake Basin. Instrument for data collection was semi- structured questionnaire. Data was analyzed using descriptive statistic. The result showed that the women are mostly engaged in processing, marketing and financing. About 60 percent of the women interviewed are engaged in marketing and financing. Ten (10) percent of the respondents are engaged in financing. The low participation in financing is attributed to high amount of capital involved. It is recommended that women should be made to benefit more from rural development policies and programmes.
    Description: Includes:- 2 tables.;1 fig.;7 refs.
    Keywords: Fisheries ; Sociology ; Nigeria ; Kainji L. ; freshwater environment ; Women ; Fisheries
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 66 - 71
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23226 | 19325 | 2018-03-18 14:51:17 | 23226 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The proximate composition and amino acids assay of smoked Clarias gariepinus and Oreochromis niloticus were determined using standard procedures. The mean proximate composition of Oreochromis niloticus are 8.9% moisture, 16.00% lipids, 5.6% ash, 44.5% crude protein, 0.42% crude fiber and 24.9% NFE while Clarias gariepinus has 8.19% moisture, 15.55% lipids, 4.725 ash, 40.46% crude protein, 0.50% crude fiber and 30.58% NFE. There is therefore a nutrient variation between the 2 species of fish Oreochromis niloticus has higher crude protein, lipids, moisture and ash content than Clarias gariepinus.The amino acids profile shows that both fishes have 17 amino acids. Apart from Tryptophan, the following essential amino acids Histidine, Methionine, Threonine, Isoleucine, Leucine, Lysine, Valine and Phenylalanine are present in both fish. Oreochromis niloticus however has higher quantities of the essential amino acids except for Histidine than Clarias gariepinus
    Description: Includes:- 2 tables.;2 figs.;7 refs.
    Keywords: Chemistry ; Fisheries ; Clarias gariepinus ; Oreochromis niloticus ; Nigeria ; Kainji L. ; freshwater environment ; Amino acids ; Ash content ; Lipids ; Organic compounds ; Moisture ; Proteins
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 91 - 95
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23232 | 19325 | 2018-03-18 13:49:50 | 23232 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The food and feeding habits of Protopterus annectens of the River Rima and Goronyo Dam in North Western Nigeria was studied. A total of one hundred and eighteen (118) fish samples were collected from October, 2001 to September, 2002 and the stomach contents were analyzed using frequency of occurrence method. The feeding adaptation with respect to mouth and related structures, gill rakers and dentition were examined. The gut length and fish length indicated rectilinear positive relationship. The regression coefficient (b) and correlation coefficient (r) of GL TL relationships were highly significant (p〈0. 01). The main taxa of food substances found in the stomachs included substances of plant and animal origins, with overall frequency of 49. 1and 38.3% for the samples from River Rima and 27.2 and 60.3% for those from Goronyo Dam in the same order. The results of percentage occurrence of the food items in the dry season showed that animal substances in the juveniles (51.7%) and the adults (41.4%) were higher than the plant materials in the samples from the two water bodies. In the rainy season, the percentage occurrences of animal substances were higher in the adults (= 30cm) samples from Goronyo Dam than those samples from River Rima, while the same food items were absent in the juveniles (= 30cm) from the two water bodies. These feeding adaptive features indicate the roles of the species in their ecological niche and provide base line information that could be useful in satisfying their food requirement under culture condition. The diversity of food substances found in the stomach and their occurrence in the juveniles and adults varied with the water bodies and season.
    Description: Includes:- 5 tables.;19 refs.
    Keywords: Ecology ; Fisheries ; Protopterus annectens ; Nigeria ; Rima R. ; Nigeria ; Goronyo Dam ; freshwater environment ; Feeding behaviour ; Feeding ; Food chains ; Food preferences
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 128-135
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23218 | 19325 | 2018-03-18 13:40:29 | 23218 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The paper reviews the various techniques of fish handling and processing in Lake Chad. Poor handling of fish catches on board coupled with the distant location of the fishing grounds and thick aquatic vegetation on the lake which hamper fast movement of catches to the processing centers are the bane of good quality fresh fish getting to the processors. The techniques adopted in processing and preservation are mainly smoking, char-burning and sun drying. Defects suffered by the processed products of the methods include high moisture content, heavy insect infestation, bacterial decomposition and fungal attack. Protection of catches from direct sunlight by spreading wet jutes over them will lower the rate of deterioration. Removal of the aquatic vegetation by appropriate authorities and canalization will ease movement of fish catches to the processing centers. More serious enlightenment of the processors on the adoption of the 'Chorkor' oven will reduce the problems presently facing cured fish. The use of rambo insecticide and other dangerous chemicals by the fish processors and marketers for the preservation of fish products before repackaging should be discouraged.
    Description: Includes:- 1 table.;43 refs.
    Keywords: Fisheries ; Nigeria ; freshwater environment ; Fish handling ; Handling ; Processing fishery products ; Curing
    Repository Name: AquaDocs
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23217 | 19325 | 2018-03-18 13:38:58 | 23217 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: A 7.0 meters Length Overall (LOA) flat bottom canoe similar to the one commonly used for fishing in Kainji lake, but with some modifications, was designed. The improvements/modifications over the local canoe include, an additional chine to reduce the flatness of the bottom which was absent in the local canoes commonly used. The canoe's light displacement (weight empty) was 0.48 Tonne, which was similar to local canoe of same size. The draft obtained was 0.13 M( 13cm), which is 36.9% of its depth (0.48 M). The capacity of the canoe was 1.304 tones. The water plane area (WPA) was 3.89 M2; WPA coefficient, and block coefficient were 0.83, and 0.82 respectively. The modification on the canoe resulted in provision of a canoe with the bottom shaped close to V-bottom to aid better performance on rough turbulent water such as the Kainji Lake, and increased life span of canoe and safety of fisher folk while aboard fishing.
    Description: Includes:- 1 table.;7 figs.;7 appendix
    Keywords: Fisheries ; Nigeria ; freshwater environment ; Boats ; Design ; Fishing vessels
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    Format: application/pdf
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23221 | 19325 | 2018-03-18 13:47:06 | 23221 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The paper examines the prospect and constraints of fisheries extension under the unification policy. It revealed certain barriers influencing its fullest utilization as well as fisher folks participation in extension programmes. Some of the barriers identified are related to inaccessibility, logistic support, improper aquaculture methodology, insufficient applied research in small scale fisheries, inability to convert research findings into positive results by small scale fisheries, inadequate number of fisheries research personnel within the existing research centers and institutes catering for the fishers sector, complexity of issues, lack of coordination and continuity in research and data deficiencies in small scale fisheries. Based on the findings, the paper recommends that, the effectiveness of the methods of identifying research needs by practitioners be assessed, the impact of the generated research results in reducing or solving field problems be ascertained, the constraints to diffusion of proven technologies from research being integrated into small scale fisheries be evaluated, the degree of effectiveness of extension delivery tools on .fishers technology adoption be ascertained, and lastly, adequate applied research in small scale fishery be emphasized.
    Description: Includes:-8 refs.
    Keywords: Fisheries ; Information Management ; Nigeria ; Extension services ; freshwater environment ; Technology transfer ; Education
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 62 - 65
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23224 | 19325 | 2018-03-18 13:56:36 | 23224 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Comparative study on the microbial load and proximate composition of fresh lean fish Labeo cubie and fresh fatty fish Synodontis membranaceus with their smoked products were carried out. The colony count of different parts was carried out on all the samples and the results show the highest microbial load on the gut of both the fresh lean fish and the fresh fatty fish. The smoked dried lean fish and the smoked dry fatty fish had lower microbial counts compared to their fresh samples because smoking reduces the microbial load on fish. Biochemical characterization carried out on all isolates confirmed Gram-negative bacterial isolates. The proximate composition show that water is the most affected nutrient during the hot smoking of both the fresh fish sample and the fresh fatty sample with a corresponding increase in protein content. There was a significant difference (p〈 0.05) in proximate composition of smoked product of fresh fatty fish and the fresh lean fish. The colony counts of different parts of the fish reveals that majority of the microorganisms is found in the guts followed by gills and the lowest in the skin this is the pattern in the two fresh fish but for smoked fish the gut is usually removed before smoking.
    Description: Includes:- 4tables;9 refs.
    Keywords: Fisheries ; Labeo coubie ; Synodontis membranaceus ; Nigeria ; freshwater environment ; Microbial contamination ; Microbiological analysis ; Fishery products
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23225 | 19325 | 2018-03-18 14:49:23 | 23225 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: This paper reviewed the major problems of fish pond culture in Mubi.The prospects for fish pond are highlighted and a call to awaken people initiatives in Mubi region to invest in fish farming is made so that the nutritional and economic status of the people of the region might be improved through aquaculture. Some of the problems identified are: lack of knowledge of the biology of culturable species, none availability of fish feed, none availability of fish seed and the peculiarity of the weather most expecially the very cold season when the temperature can be as low as 18~'C.
    Description: Includes:- 12 refs.
    Keywords: Aquaculture ; Nigeria ; Mubi ; freshwater environment ; Fish culture ; Freshwater aquaculture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23229 | 19325 | 2018-03-18 14:58:27 | 23229 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The gut length to standard length ratios of twelve fish species from the Ovia and Ikpoba Rivers were calculated to work out their feeding level in the food chain. The mean ratio of five species Brycinus macrolepidotus Smith, 0.9 Parachanna obscura (Gunther), 1.0, Papyrocranus afer. Gunthel; 0.35, and Xenomystus nigri Gunther 0.75, classify them as carnivores. Four species Synodontis eupterus Boulenger; 4.4 S.schall (Bloch and Schneider) 4.8, Tilapia mariae Boulenger, 3.5, and T. tilli (Gervais), 4.7, are herbivores. Three intermediate ratio species B. longipinnis (Gunther), 1.3,Chrysichthys furcatus (Gunther) 1.6, and Clenopoma kingsleyae Gunther, 1.8, are omnivores. The body depth of seven of the species was measured and expressed as percentage of the standard length to ascertain the accommodative capacity of the fish for the gut. In addition a review of culture of snake head fish Parachanna obscura is presented.
    Description: Includes:- 3 tables.;18 refs.
    Keywords: Aquaculture ; Ecology ; Parachanna obscura ; Nigeria ; Ikpoba R. ; Nigeria ; Ovia R. ; freshwater environment ; Fishery biology ; Length ; Ratios
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23230 | 19325 | 2018-03-18 15:00:41 | 23230 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: This paper reviews accounts of social and economic features of HIV/AIDS epidemics in the fisheries sector focussing on Africa with particular reference to Nigeria. Fishing communities are often among the highest-risk group, with high overall rates of HIV/ AIDS prevalence. It is more important to use the information made available from these efforts in more effective way of targeting the appropriate interventions and measures that can be designed and instituted. This information could also serve useful purposes and the efficient mobilization of needed resources from all possible sources in order to achieve the Millennium Development Goals in the Fisheries sector in Nigeria.
    Description: Includes:- 31 refs.
    Keywords: Conservation ; Health ; Nigeria ; HIV/AIDS ; freshwater environment ; Public health ; Human diseases
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23238 | 19325 | 2018-03-18 15:18:15 | 23238 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Good handling of fish from the point of harvest to consumption is very essential and the quality of fish can only be maintained if only suitable containers are used in its processing, transportation, distribution and marketing. This study analyzed the different containers used by fishermen at lake Alau community in Konduga Local Government Area of Bomo State. The study was carried out in two prominent leading sites of lake Alau community which are kachalari and Abbari with the aid of questionnaires interview conducted with 50 randomly selected respondents fishermen. Both primary and secondary data were collected. The collected data were analyzed using the market cost of the various fish containers. The result shows that fish containers such as Metal basin, sacks, flat sacks and Metal trays have strong strength while Baskets, jerry cans and calabash have moderate strength the polythene bags, stationery and news print are very weak. Also baskets have the highest percentage of usage 20% while flat sacks, polythene bags and stationery have the highest percentage of 4%, which are the lowest. It can be concluded that, the different containers are afforded to fishermen but most of the containers are often kept dirty, which lead to poor hygiene, rough handling and invariably post-harvest losses and shortage in food supply. It can be recommended that, sheds should be provided at the landing sites to protect fresh fish the direct heat of the sun and enlightment of fishermen and traders on the minimum standard o fthe quality and hygiene for fish and fishery products.
    Description: Includes:- 4 tables;6 refs.
    Keywords: Fisheries ; Management ; Nigeria ; Alau L. ; freshwater environment ; Containers ; Fishery products
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23241 | 19325 | 2018-03-18 15:26:11 | 23241 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Cephalic abnormality in nine mating groups involving Clarias gariepinus with cephalic abnormality, non Cephalic and Maiduguri origin were investigated to determine the level and the genetic basis of the occurrences and its aquaculture implication. The highest mean percentage survival in a Cephalic crossed with non cephalic group was 68.6% whereas the last mean percentage survival was 25.7% in the group of Maiduguri cross with Maiduguri parent. Cephalic abnormality was observed in the crosses with both female and male cephalic with a total frequency ranging from 0 % to 70.8. %. The least number of cephalic abnormality was 18.5% which involved a cross of non cephalic with cephalic, and the highest was 70.8%. This level of cephalic abnormality shows that the defect was hereditary. This result implies that, the genetic factor is a major contributor in the feature of cephalic abnormality in Clarias gariepinus.
    Description: Includes:-1 table.;3 appendixes.;11 refs.
    Keywords: Aquaculture ; Fisheries ; Clarias gariepinus ; Nigeria ; freshwater environment ; Diseases ; Deformation ; Fish culture ; Genetics ; Abnormalities ; Genetic abnormalities
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23242 | 19325 | 2018-03-25 12:34:41 | 23242 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Kainji Lake is a man-made Lake and is impounded in 1968 to generate hydroelectric power. The Lake also offers opportunities for developmental projects like Fisheries and Irrigation. Lake Kainji receives organic waste through husbandry operations in which the cattle defecate into and around the bank of the Lake. Other sources of pollution include runoff from farms, bathing and washings in the Lake. Surrounding villages e.g. Tarda and Musawa used the Lake as source of raw drinking water and also for other domestic purposes. Bacteriological quality of fish and water from the Lake is carried out as well as that of cow dung by using primary isolation media and biochemical analysis. Physico-chemical parameters of water from the Lake is also determined. Total viable bacteria count and total coliform count of the water range from 3.4 x 104 to 03.8x 106 Cfu/ml and 1.4 x 103to 2.1 x 105Cfu/ml respectively. Cow dung has total coliform count of 6.9 x 105 while fish gills has total coliform count of 1.6x103cfu/g. Bacteria species such as Escherichia coli, Salmonella typhi, Aeromanas hydrophila, and shigella species were found in the water body. Escherichia coli, Aeromonas hydrophila, and Salmonella species were found in the fish samples. Escherichia coli, Aeromonas hydrophila, Shigella species and Salmonella species were isolated from cow dung. Physicochemical Parameters such as DO, BOD and N03-N range from 4. 7 to 5.2mg/l, 0.2 to 0.9mg/1 and 7.0 to 9.3 mg/l respectively. This result shows that Kainji Lake is an intermediately polluted water. It is therefore necessary that cow dung used for fertilization of fish ponds should be screened for pathogens before use. It is also recommended that pollution of surface water bodies through human activities should be discourage by legislation on water pollution.
    Description: Includes:- 6 tables.;14 refs.
    Keywords: Biology ; Fisheries ; Pollution ; Nigeria ; Kainji L. ; freshwater environment ; Bacteriology ; Water quality ; Environmental effects ; Pollution
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23243 | 19325 | 2018-03-25 12:36:45 | 23243 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The study was carried out in five local Government Areas namely Sokoto North, Bodinga, Kware, Ilila and Tambuwal mapped out by International Fund for Agricultural Development as fishery potential areas. Seven villages namely Gidan Igwai, Kaurar Kwasau, Gidan Akwara, Tozai, Tambuwal, Mogajin Gari, and Badau also were selected all at random. Fish farm management questionnaire was used for data collection. Results revealed that adequate fish farm facilities, fish seed supply, private sector confidence and support, risk consderation, government support and investment, over popularized livestock poultry sub sector and fishery extension service are the problems of fish farming. Recommendations were made as to how to improve fish farming in Sokoto State.
    Description: Includes:- 17 refs.
    Keywords: Aquaculture ; Sociology ; Nigeria ; Sokoto State ; freshwater environment ; Socioeconomic aspects ; Aquaculture ; Aquaculture development
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23249 | 19325 | 2018-03-25 14:29:19 | 23249 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Ten specimens of African cuttlefish, Sepia bertheloti, from the coastal waters off Qua Iboe River, Southeast Nigeria, were analyzed for the relationship between the concentration of the elements and the size of the species. Energy Dispersive X-ray fluorescence technique was employed to determine the elemental composition of the species. Eleven elements were identified in the body of cuttlefish. These were Chlorine, Strontium, Potassium, Calcium, Bromine, Iron, Copper, Zinc, Manganese, Nickel and Selenium of these elements, the concentration of calcium, potassium. Copper and strontium had a positive correlation with the weight, while the concentrations of manganese, nickel, chlorine, iron were negatively correlated with their weights. However, only manganese had a significantly negative correlation (p〈0. 05). Bromine and zinc had no correlation with the weights of the species. There also existed a significant positive correlation between Ca and K, Se and Ni, Cu, Br and Zn and St and K. We conclude that African cuttlefish, irrespective of size is a rich source of nutritional elements and is especially recommended for pregnant women and for all age groups.
    Description: Includes:- 2 figs.;9 refs.
    Keywords: Fisheries ; Sepia bertheloti ; ASE ; Nigeria ; Gulf of Guinea ; Nigeria ; Qua Iboe R. ; freshwater environment ; marine environment ; Nutritional requirements ; Potassium ; Nutrition
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23246 | 19325 | 2018-03-25 12:43:59 | 23246 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: This study set out to investigate the participation of women in fisheries in some fishing communities in Wamakko Local Government Area of Sokoto state. It succeeded in establishing the fact that women are active though to some extent in fisheries in this area. This is as a result of the prevailing socio-cultural, as well as religious set up which revolves round task sharing. It however highlighted the fact that women's contribution in the fisheries sub-sector is necessary to improve their livelihood and by so doing, to directly help households.
    Description: Includes:- 8 refs.
    Keywords: Fisheries ; Sociology ; Nigeria ; Sokoto ; freshwater environment ; Women ; Fisheries ; Fishery resources
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23253 | 19325 | 2018-03-25 14:37:19 | 23253 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Chlorpyrifos-ethyl with its mode of action was evaluated in laboratory studies to determine its 96-h acute toxicity, using juveniles of Clarias gariepinus. The fish was exposed in glass aquaria to 0.64~cmg/l, 0.80mg/l, 0.96mg/l, 1.12mg/1 and 1. 28mg/1. The test substance was found to have lethal effects on fish as they changed fish behaviour and caused death. The 96-hLC50 value for C. gariepinus was estimated as 0.92mgl-1. Observations of be bavioural and mophlogical responses were used as indicators of sublethal toxicity. The behavioural toxicology bioassay may be valuable in comparing and predicting the mode of action of new or unknown toxicants in this and other fish species.
    Description: Includes:- 1 table.;1 fig.;2 plates.;38 refs
    Keywords: Fisheries ; Pollution ; Clarias gariepinus ; Nigeria ; freshwater environment ; Toxicity ; Toxicants ; Pollution ; Lethal effects
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23260 | 19325 | 2018-03-25 14:50:35 | 23260 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Scientists and researchers agree that developmental projects should have impact on the targeted groups. In this context a review was made on the indigenous knowledge system in fishery with a view to elucidating the indispensability of the system due to the increasing acceptance globally. The importance of the system and the factors militating against it where shown. The relationship between fisheries science and the fisher's knowledge was also discussed. Some indigenous practices as well as equipment used by different people were cited. It was concluded that local knowledge of the environment and resources used, as well as the society within which the resultant goods and benefits are distributed is fundamental to the continuity of sound community based management practices. Recommendation was made for research to be conducted in every facet of fishery traditional system with a view to fusing the two; the indigenous and scientific to complement each another.
    Description: Includes:- 23 refs.
    Keywords: Fisheries ; Information Management ; Nigeria ; Information Sources ; Indigenous knowledge ; freshwater environment ; Fishery management ; Stock assessment
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23259 | 19325 | 2018-03-25 14:49:05 | 23259 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Fish Aggregating Devices (FADs) were experimented in Lake Kainji using worn out automobile lyres and cement blocks for a period of 12 weeks. Six tyres and blocks were tied together separately in 3 replicates and randomly suspended in the lake at a depth of 2 metre and 50 meter interval. After 8 weeks of suspension, a fleet of gillnets with 76mm mesh size and hung at E-value 0.5 were zigzag set across the suspended FADs for 12 fishing periods with 13 hrs soak time (~c1.0268.D.) per period The trial showed that the cement block FADs attracted more fish (70% of the total fish caught) belonging to 6 different species. The lyres FADs attracted only 3 species of fish constituting some 30% of the total fish caught Citharinus citharus dominated the catch of the block FADs constituting 52.3% of the total catch, while Oreochromis niloticus was 46.4% of the tyre FADs. The Horizontal Enhanced Fishing Zone (EFZ) was found to be between 5 to 12 metres from the location of the FADs. There was significant different (P〈0.05) in the catches of the two FADs.
    Description: Includes:-14 refs,;1 table,;3 figs.
    Keywords: Fisheries ; Nigeria ; Kainji L. ; freshwater environment ; Fishing gear ; Gear construction ; Gear materials ; Gear research
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23276 | 19325 | 2018-03-28 15:48:40 | 23276 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: This study was carried out by surveying all the water bodies of two states where Typha grass exists. Soil auger was used to take soil samples randomly from five different locations in both Kebbi and Katsina state at the depths of 0-5cm, 510cm, 10 15cm. Soil nutrient was analyzed for the mineral composition of the two States at different season and soil depths. The result showed that, soil depth between 5-10cm has the highest percentage of nitrogen, phosphorus, calcium and magnesium during dry season. The nutrient composition of soil from the two states followed the same pattern during wet season.
    Description: Includes:- 4 figs.;9 refs.
    Keywords: Earth Sciences ; Ecology ; Nigeria ; Kebbi State ; Nigeria ; Katsina State ; Soil nutrient ; freshwater environment ; Soils ; Nutrients (mineral) ; Growth ; Aquatic plants
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23277 | 19325 | 2018-03-28 15:50:01 | 23277 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Sixteen (16) weeks feeding trial in a randomized design with three replicates was conducted to study the response of 180 Oreochromis niloticus fingerlings to baobab pulp as a source of vitamin C. They were fed a basal diet without supplemental vitamin C in the first 2 weeks of conditioning to deplete some stored acrobate. Diets supplemented with 1008 mgascorbyl-2-monophosphate Mg2+ (AMP) kg-1 diet (diet 1); 84g baobab pulp kg-1 (diet 2) and 168g baobab pulp kg"1 diet (diet 3) were evaluated. There was no significant difference (P〉0.05) in terms of weight gain, feed efficiency ratio, protein efficiency ratio, specific growth rate and survival between the groups fed diets 1 and 3. There was a significant difference between the groups fed diet 2 and either of the other diets. Total ascorbate concentration of the liver was significantly (P〈0.05) higher in the groups fed diet 3. The crude protein content of the final fish was significantly (P〈0. 05) higher in the groups fed diet supplemented with AMP. Interestingly none of the groups exhibited the characteristic symptoms of vitamin C deficiency. The results of this experiment suggest that Oreochromis niloticus was able to obtain vitamin C from the baobab pulp and tend to recommend baobab pulp at a level not less than 168g kg-1 diet in the nutrition of Oreochromis niloticus based on the condition of this study.
    Description: Includes:- 3 tables.;1 fig.;19 refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; freshwater environment ; Vitamin C ; Diets ; Feeding experiments
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23278 | 19325 | 2018-03-28 15:52:01 | 23278 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Studies on the effects of two fishing baits on the catch composition of Malian Traps in Lake Kainji were monitored. The Traps were set at Monia fishing village in the southern basin of the Lake Baited with boiled yam (Dioscorea rotundata) and fresh palm fruit (Elaeis guineensis) and were inspected twice daily for seven weeks. The fishes caught comprised of nine (9) species belonging to four (4) families. The result of analysis of variance of the biomass as well as number and percentages of fishes caught in the traps by the baits showed there was no significant difference (P〉0.05). However, both baits showed better efficiency for Tilapia zilli, Oreochromis niloticus and Hemichromis fasciatus than other species caught but trap baited with fresh palm fruit had better efficiency for Distichodus restratus and Alestes nurse. There was wide range between the minimum and the maximum size of species caught, which showed the efficiency of the traps capturing small size, juveniles and the adult of large fish species due to small mesh size (1'') net cover of the trap. Recommendations were made for better performance and profitable fishing of Malian traps.
    Description: Includes:- 4 tables.;11 refs.
    Keywords: Fisheries ; Nigeria ; Kainji L. ; Malian trap ; freshwater environment ; Fishing ; Bait ; Trap fishing
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23279 | 19325 | 2018-03-28 15:53:18 | 23279 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Oreochromis niloticus of mean weight 45.96~c0.06g were fed seven practical diets ranging from 8.77 to 33.77% carbohydrate in 56 days. Mean weight gain were not significantly different (P〉0.05) while mean daily gain and specific growth rate varied significantly (P〈0.05). The protein efficiency ratio did not follow any trend with the percentage protein fed. It was highest with fish fed 46.3% and lowest with fish fed 51.2%. There was no significant variation in the food conversion ratio. The results indicated that O. niloticus utilized 25.28% carbohydrate optimally among the diets fed. The requirement of the fish for carbohydrate in diet is 30%.
    Description: Includes:- 3 tables.;2 figs.;19 refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; freshwater environment ; Feeding experiments ; Nutrition ; Carbohydrates
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    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23280 | 19325 | 2018-03-28 15:54:31 | 23280 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: Oreochromis niloticus broodstock of mean weight 32.3g were cropped in the morning with dragnet from a 1 ha reservoir and transported in round tanks to the Hatchery complex of the National Institute for Freshwater Fisheries Research where they were stocked into 5m x 5m indoor concrete tanks filled with clean water and with aerators at a density of 4 fish/m1. They were acclimated for 5 days and then packaged into 60 liter capacity water proof bags at the following stocking densities: 60, 80, 100, 120, 140 fish/60 lit bag. Each stocking density had bags with ice blocks and bags without ice blocks in triplicate. The water proof bags were oxygenated, loaded into quick fitting plastic bowls and transported in a bus from New Bussa to Warra, Kebbi state, a journey of 3 hours. The trip was repeated four times. Percentage survival in bags with ice block were 100%for stocking densities 60, 80, 100 fish/60 lit bag, 95.1%for 120 fish/60 lit bag and 84. 7%for 1-10 fish/60 lit bag (mean temperature 23.5~?C). Mortalities were recorded in all the bags without ice block but the highest survival was in the bag with stocking density 60fish/60 lit bag (mean temperature 29.2~?C).
    Description: includes:- 3 tables.;6 refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; freshwater environment ; Stocking density ; Transportation ; Fish culture
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    FISON | Kaduna
    In:  http://aquaticcommons.org/id/eprint/23281 | 19325 | 2018-03-28 15:57:48 | 23281 | Fisheries Society of Nigeria
    Publication Date: 2021-07-13
    Description: The implications of the abattoir effluents discharge into the Lower Ogun River in Isheri-Olofin area on the abundance of three African fresh water prawns: Macrobrachium vollenhovenii, M macrobrachion and M. felicinum were assessed. Monthly prawn collections were undertaken using a scooping bag net with 0.05mm mesh size at three stations with 100m intervals in each of Ishasi (upstream) and Isheri-Olofin (downstream) areas of the river for 24months (January, 2006-December, 2007). For the 24month period, the upstream (pooled data from stations 1,2 and 3) had M. vollenhovenii of total and mean density of 27,938.33 prawn/m2 and 1164.60prawn/m2 1131.04 respectively, while total and mean M. vollenhovenii density of 5,815.43prawn/m2 and 243.81 prawn/m2 231.45 were obtained in the downstream (pooled stations 4, Sand 6 data). T-test showed the entire upstream to have significantly higher M. vollenhovenii density than the entire downstream (p〈0.05). The entire upstream had higher M. macrobrachium total and monthly mean density (19,092prawn/m and 816.44prawn/m2 1,354.28) than the entire downstream (6,384.47prwn/m2 and 266.02m2524.94) (p〈0.05). Also, significantly higher total and monthly mean density of M felicinum were obtained upstream (20,9S6.S0prawn/m2 and 873.46prawn/m21615.06) than downstream (10,9668.11prawn/m2 and 461.16prawn/m2975.19) (p〈0.05). The significance of the decline in abundance of each of the three Macrobrachium prawn species in the downstream area was discussed.
    Description: Includes:- 4 figs.;18 refs.
    Keywords: Biology ; Ecology ; Macrobrachium vollenhovenii ; Macrobrachium macrobrachion ; Macrobrachium felicinum ; Nigeria ; Ogun River ; freshwater environment ; Abundance ; Population density ; Shrimp fisheries ; Pollution ; Pollution effects ; Effluents
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23328 | 19325 | 2018-04-06 16:06:27 | 23328 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: This study was undertaken to observe the clinical changes associated with the dietary ascorbic acid supplementation in the diet of African catfish, Clarias gariepinus, using the presence or absence of scorbutic (ascorbic acid deficiency) symptoms as indices. Clarias gariepinus fingerlings (6.02~c 04g) were randomly distributed into glass tanks of 60 x 45 x 45cm3 dimension at ten fish per tank in a triplicate treatment. Five diets containing 40% crude protein was formulated. Ascorbic acid (AA) was supplemented in the diets as ascorbyl-2-polyphosphate (a mixture of phosphate esters of ascorbate). Each treatment had varying levels of ascorbic acid (AA) supplementation, at 0 (Control) 50, 100, 150 and 200mg AA/kg, in Treatments 1, 2, 3, 4 and 5 respectively. Fish were fed practical diets twice daily at 900hrs and 1600hrs. Weekly weighing of fish was done and data collected were subjected to statistical analysis. At the end of week 4, fish fed scorbutic diets (diets without Ascorbic acid) had significantly lower weight than fish fed AA supplemented diets (P〈0.05). After week 6, fish fed scorbutic diet began to develop clinical symptoms including lordosis (lateral curvature), broken skull, pigmentation and scoliosis (vertical curvature). Radiographs confirmed defects in the vertebral columns of fish in this treatment. Highest mortality was recorded in this treatment as 30%, In all parameters considered, treatment 4 fed 150mg AA/kg gave the best AA supplementation that prevented growth reduction and clinical signs of AA deficiency.
    Description: Includes:-3 tables.;11 plates.;17 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; freshwater environment ; Feeding experiments ; Fish culture
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23327 | 19325 | 2018-04-06 16:05:03 | 23327 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Research was carried out to explore the fish species diversity and study some aspects of the biology of fish of Daberam reservoir, Katsina state, Nigeria, for a period of three month from March to May 2009. Samples were collected from commercial fishermen and experimental fishing gears, preserved in formalin and taken to laboratory for identification; confirmation was done by fisheries experts. Eight genus comprising ten species were identified. The regression coefficient (b) was 3.07, 2.91 and 3.21 for the three most commercially importance species in the reservoir i.e. Oreochromis niloticus, and Clarias gariepinus respectively which indicated Positive allometric growth for O. niloticus and C. gariepinus and negative allometric growth for T. nilotica. The mean condition factor (k) was 1.140, with values of 1.027and 0.732 for O. niloticus and C. gariepinus, respectively. This indicates that the fish are not leaving well compared to other freshwater fishes.
    Description: 18 refs.
    Keywords: Ecology ; Fisheries ; Oreochromis niloticus ; Clarias gariepinus ; Nigeria ; Daberam Reservoir ; freshwater environment ; Fishery biology ; Biodiversity ; Species diversity ; Length-weight relationships ; Condition factor
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23330 | 19325 | 2018-04-06 16:09:38 | 23330 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Investment opportunities in aquaculture that could lead to creation of employment in Nigeria was reviewed. Nigeria is a large fish consuming nation with the resource capacity to produce large quantity of fish for the country. The level of unemployment rate is increasing at an alarming rate. Employment opportunities in Agriculture sectors, in the area of Aquaculture deals with several sub sectors such as; seed production, transportation of live fish ,Water quality management, ornamental fish industries, supplies to aquaculture equipment and tools, aquaculture extension service, fish feed, fish meal production, fish processing, integrated rice-cum fish culture, and fish farm labor. These are all investment opportunities that can reduce unemployment, increase food security and poverty alleviation In Nigeria.
    Description: Includes:- 11 refs.
    Keywords: Aquaculture ; Nigeria ; freshwater environment ; Fish culture ; Investments
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23336 | 19325 | 2018-04-07 17:13:31 | 23336 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Improved fish processing and preservation techniques in Lake Chad were carried out at Federal College of Freshwater Fisheries Technology, Baga, Borno State, Nigeria. Experiments were carried out using either Kainji Gas Smoking Kiln, Watanabe Kiln, Salting and Solar Drying. The improved (Modern) methods of preservation are faster, more durable, ensure a greater varieties of fish products, render bacteria actions ineffective and above all, products are more appetizing than the traditional preservative techniques but the latter are cheaper and easier to design with local materials.
    Description: Includes:- 3 table.;4 refs.
    Keywords: Fisheries ; Nigeria ; Chad L. ; freshwater environment ; Processing fishery products ; Curing ; Drying ; Processed fishery products
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23338 | 19325 | 2018-04-07 17:17:18 | 23338 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The evaluation of Cr. Cu, Mn, Fe, Ni, Zn,As and Pb concentrations in Clarias gariepinus and Oreochromis niloticus from Lake Geriyo Yola,Adamawa, Nigeria using X - ray fluorescence (XRF) technique is discussed. The analytical samples are irradiated with high energy electrons of 109Cd to produce fluorescent X-rays was produced which passes to the Silicon-lithium detector through Mo target as a source of monochromatic X-rays. The spectrum of energy generated on the detector was processed by a Multi- Channel Analyzer to obtain analytical data. The intensity of the fluorescent X-rays on the detector is proportional to the concentration of the individual element of interest in the sample. This method can identify up to 30 or more elements at the same time. The results showed varying levels of heavy metals in the fishes. The concentrations of Cr, Mn, Cu, and Ni in the fishes were much higher than WHO and PEPA maximum permissible limits, while the concentrations of Zn and Pb were lower than the standards. The results suggest that the lake is polluted with Cr, Mn, Cu and Ni and the consumption of fishes of the lake is life threatening to man.
    Description: Includes:- 1table.;11 refs.
    Keywords: Ecology ; Chemistry ; Pollution ; Clarias gariepinus ; Oreochromis niloticus ; Nigeria ; Geriyo L. ; freshwater environment ; Heavy metals ; Fish ; X-ray fluorescence analysis ; Pollution ; Pollution effects
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23332 | 19325 | 2018-04-07 17:07:41 | 23332 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: This paper examines the role of middlemen in the marketing of smoked fish in Doron Baga fish market of Kukawa Local Government Area of Borno State. Data were obtained from 200 respondents using stratified random sampling technique, with the aid of structured questionnaire. Data were analyzed using descriptive statistical tools. Secondary sources of information were also gathered from research papers, reports and journals. The study revealed that, there are two types of middlemen in the Doron Baga fish market: selling brokers (Dillali) accounting for 75% and buying brokers (Yan acha) 25%. The role played by the selling brokers includes selling for the fishermen with commission, lending money to fishermen and providing security for the unsold fish. Buying brokers assist those that want to buy fish while the buyer gives them little amount of money as commission. Brokers get more clients when the fish during periods of maximum catch. The problems the middlemen face are failure of the fishermen to pay back the money borrowed from the selling brokers while buyers hardly trust the buying brokers.
    Description: Includes:- 3 tables.;5 refs.
    Keywords: Fisheries ; Management ; Nigeria ; Baga ; Middlemen ; Fish marketing ; freshwater environment ; Marketing ; Market research
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23333 | 19325 | 2018-04-07 17:09:15 | 23333 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: A study of the capture fisheries of Kontagora Reservoir was carried out between January - December, 2007, using statistical frame and catch assessment survey methods. Five fish families comprising seven fish species were recorded. Hemichromis fasdatus, a cichlid was the most dominant species with mean value of 414.3 and 7715Kg in terms of number and weight respectively. Nineteen commercial fishermen were recorded, with the following fishing gears: gill net, cast nets, long lines, and Malian traps. The fishing craft included wooden canoe. The total mean catch of the fishermen were 4.40(1.36) kg/canoe or 167(52.64) fishes/canoe. The reservoir was productive in comparison with other smaller but productive African lakes. The monitoring, control and surveillance (MCS) system was suggested for management consideration, with emphasis on registration of fishermen and their fishing equipment, enforcement of minimum mesh size of 3” and establishment of community based cooperative scheme.
    Description: Includes:- 4 tables.;1 fig.;10 refs.
    Keywords: Fisheries ; Nigeria ; Kontagora Reservoir ; freshwater environment ; Stock assessment ; Catch statistics ; Fishery surveys ; Landing statistics ; Seasonal variations ; Stock identification
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23339 | 19325 | 2018-04-07 17:18:23 | 23339 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Three soil sample media (loamy, sandy and clayey) were used to culture earthworm, (Eudrilus eugeniae (Kinberg) in earthenware pots for ten weeks, under laboratory conditions. The aims of the research are to culture earthworms as replacement for fish meal, and to determine the best suitable soil medium for culturing and breeding of earthworms. Two sets of treatments were set up with the three soil samples; the experimental containing organic matter (cow dung) and the controls lacking organic matter. Watering was done every three days to keep the culture moistened. but not saturated. Results of the study showed that loamy soil had the highest number of earthworms harvested, followed by sandy and then clayey soil. Increase in number of harvested earthworms between the experimental and control groups differ significantly (P〈 O.05), with the experimental group having higher number of harvested earthworms. Loamy soil was the most favourable medium that enhanced the growth and survival of earthworms, when cultured under laboratory conditions, for fish meal replacement in aquaculture.
    Description: Includes:- 1 table.;2 figs.;10 refs.
    Keywords: Aquaculture ; Eudrilus eugeniae ; Nigeria ; Zaria ; Earthworm culture ; freshwater environment ; Aquaculture ; Breeding ; Cultured organisms
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23340 | 19325 | 2018-04-07 17:19:26 | 23340 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Ekiti State has limited water surface area but blessed with some rivers and seven big reservoirs on which some artisanal fishery is being carried out by over 400 fisher folks. Fish farming in Ekiti state is largely dominated by Clarias gariepinus culture. Interest in fish farming is on the increase as farmers construct concrete fish tanks as small as 1.5m2 as well as series of contour earthen ponds or tanks as big as 30m2. The total number of ponds has grown numerically from 96 at the inception of the state in 1996 to about 2000 in 2008. The move towards private/public partnership in aquaculture development will improve the economic and nutritional status of the region.
    Description: Includes:- 1 table.;3 figs.;5 refs.
    Keywords: Aquaculture ; Fisheries ; Nigeria ; Ekiti State ; freshwater environment ; Fish culture ; Freshwater aquaculture ; Aquaculture ; Artisanal fishing ; Fishery development ; Stock assessment
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23342 | 19325 | 2018-04-08 11:28:41 | 23342 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The study compares market performance and profitability of fish in Baga-Doro fish market. Respondents were drawn from a cross section of fish marketers in Baga-Doro fish market. Sixty marketers were selected through a system of random sampling. Data collected were on socio-economic characteristics, cost and returns, and problem associated with fish marketing in the study area. Structural questionnaire were the instruments used for data collection .Percentage were used to describe the socio-economic problems associated with fish marketing, while gross and marketing performance models were used to describe the profitability and marketing margin respectively. The result revealed that almost all the marketers are male, with wholesalers and retailers in proportion of 70% and 30% respectively. The age proportion of the fish marketers comprises mostly of men above 45years of age, with 75% of the entire marketers population. Age between 35 and 44 covers about 20% of the population of the marketers, leaving the remaining 5% to age between 25 and 34. The gross margin was used to measure the profit level, which is expressed as: GM=sales revenue. -cost of Goods sold. Major problems faced were that of transportation and storage. The study recommends credit provision to purchase storage facilities and training workshops to increase awareness among others.
    Description: Includes:- 1 table.;5 refs.
    Keywords: Fisheries ; Management ; Nigeria ; Baga ; Nigeria Doro ; Fish market ; freshwater environment ; Economics ; Fishery economics ; Marketing ; Market research
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23345 | 19325 | 2018-04-08 11:34:48 | 23345 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Sustainability in the extraction of fishery resource need to be proactively upheld if the achichment of the Millennium Development Goals (MDGs) will be anything to go by in Nigeria and other developing countries. The fishery resource, of the biotic component of the environment, and the main focus of this paper, is renewable resource whose existence if not for adverse environmental factors and natural specialization that occurs over thousands of years, is a continuum. The biological attributes of these fauna and flora render them amenable to usage in manners that still allows their continuous existence for the profit of mankind. Ignorance and the consequent inappropriate harvesting methods and uses of the fishery resource make them prone to abuse, imperilment, and eventual extinction. The influential and important roles of women as fishers, fishmongers. processors, concerned citizens of healthy living and organizers of the end use of the fishery resource put women in a vantage position to influence; thereby, enforcing conservation and sustainability in the extraction of the resource when trained in natural resource management. Consequently, women need to be trained and equipped with knowledge such as basic principles in these areas: biological attributes of the aquatic resources, measures of aquatic resource management, and approaches such as co-management, , communitybased and ecosystem-based approaches to fishery management; including simplified principles embedded within international instruments that form the legal frame work for resource management.
    Description: Includes:- 19 refs.
    Keywords: Fisheries ; Information Management ; Nigeria ; freshwater environment ; Women ; Fishery resources ; Resource management
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23346 | 19325 | 2018-04-08 11:44:52 | 23346 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: A preliminary survey of fish species composition in Igbedi Creek was carried out between July and September, 2007. Fish samples were collected from the fishermen's catches operating in the Creek and its distributary Ogoubiri River. Collected fish specimens were identified in the laboratory using standard identification keys. Thil1y-seven (37) fish species belonging to 17 families were observed. The most abundant families were the Mochokidae with seven (7) species which constituted 23.79% of the total sample collected followed by the Clariidae (10.78%) and Mormyridae (10.04%).
    Description: Includes:- 2 tables.;11 refs.
    Keywords: Ecology ; Fisheries ; Nigeria ; Igbedi Creek ; freshwater environment ; Check lists ; Species diversity ; Biodiversity
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23344 | 19325 | 2018-04-08 11:33:10 | 23344 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The nutritional value of peels and' ~eds' 9f Mango, Mangifera indica was studied by analyzing collected samples of these non conventional feedstuffs for their proximate composition. The result of the analysis shows that moisture ranged from 9.70 to 10.48% (peels) and 9.50 to 10.48% (seeds). Protein ranged from 4.08 to 4.49% (peels) and 5.38 to 8.10% (seeds). Carbohydrate was 49.35 to 62.45% (peels) and 53.64 to 70.58%' (seeds). Fat ranged from 3.98 to 6.30% (peels) and 8.30 to 12.80% (seeds. Ash content ranged from 2.20 to 4.98% (peels) and 2.00 to 3.70% (seeds). The values for the proximate parameters of the peels and seeds were comparable to values reported for other non convectional feedstuffs. The seeds of ti1'ango had higher values than peels.
    Description: Includes:- 3 tables.;1 fig.;20 refs.
    Keywords: Aquaculture ; Nigeria ; Mango ; freshwater environment ; Nutritive value ; Carbohydrates ; Chemical composition ; Feed composition ; Chemical analysis
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23350 | 19325 | 2018-04-08 11:52:47 | 23350 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Vocational training for unemployed youths as fish farmers plays an important role in meeting fish protein need of Nigeria, contributing immensely to the national economy by providing nutritious food for the populace, creating jobs and enhancing national health and wealth. Youths are the leaders of tomorrow thereby their contribution towards food security is important. The study considered their opinion on the training based on skills acquired during a-6-week intensive vocational training. Results show that most trainees (97.03%) are within the economically active age group of 20-39years. Most trainees were confident that the programme will ensure food abundance and have a great impact on national economy. They also considered the training helpful and not only to their immediate families but also to the country at large. Skills were acquired in 8 various enterprises of fisheries but most trainees (43.56%) show greatest interest in fish fingerlings production through induced breeding, a situation that could boost aquaculture in Nigeria in few years to come. According to the trainees, the programme is laudable, and came at the right time when Nigeria is agitating to be put among the economically developed nations. However, youths exercise fear over inconsistency that could impede the progress of the programme. Recommendations are made on how to ensure better food security through a laudable programme of this nature.
    Description: Includes:-8 tables.;4 refs.
    Keywords: Aquaculture ; Information Management ; Nigeria ; Vocational Training ; Extension Services ; freshwater environment ; Training
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23356 | 19325 | 2018-04-08 12:07:41 | 23356 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The mangrove oyster, Crassostrea gasar inhabits the estuarine/coastal mangrove swampland of the Niger Delta. It can be found in the wild attached permanently to mangrove trees and any other hard substrate in the water. It thrives well in brackish water with a wide salinity and temperature range. The oyster has a high economic value and is accepted both locally as food. The table sized mangrove oysters sold in markets in Rivers State are from the wild. The culture potential of the oyster is yet to be explored in the State; despite the fact that details of culture techniques for the mangrove oyster have been fully documented by scientists at the African Regional Aquaculture Central Nigerian Institute for Oceanography and Marine Research, (ARACINIOMR). This paper highlights techniques for the production of table sized oyster and environmental issues that could affect long term sustainable oyster farming.
    Description: Includes:- 10 refs.
    Keywords: Aquaculture ; Crassostrea gasar ; Nigeria ; freshwater environment ; Mangroves ; Oyster culture ; Oyster fisheries
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23354 | 19325 | 2018-04-08 12:03:29 | 23354 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Growth performance and survival rates of three different sexes of Oreochromis niloticus fingerlings (27.5~c 0.02g); mixed-sex, all male and all female fed 35% CP at 5% body weight was carried out for 56 days in indoor rearing operations. Aquaria tanks (60x30x 30cm3) were used as rearing tanks and each treatment was replicated. All female tilapia had the best specific growth rate (2.54%/day), food conversion ratio (1.98) as well as survival rate (98%), least value was obtained in treatment containing the mixed sex tilapia. Specific growth rate (2.06%/day), Food conversion ratio (2.27) and survival rate (95% ).
    Description: Includes:-2 tables.;1 fig.;7refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; New Bussa ; freshwater environment ; Survival ; Sex ratio ; Food conversion ; Fish culture ; Feeding experiments
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23357 | 19325 | 2018-04-08 12:09:40 | 23357 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Commercial shrimp farming has been practised for several decades in many countries of the world over. High demand for shrimps and corresponding high returns on investment has played major roles in the expansion of the industry. In Nigeria, farming shrimps is still novel. Notable research work includes studies conducted at the Nigerian Institute for Oceanography and Marine Research, African Regional Aquaculture Centre and Institute of Oceanography, University of Calabar. Niger Delta has potentials for farming shrimps - suitable sites, good candidate shrimp species, high local demand with potentials for export. However the major challenge would be the availability of guidelines to regulate farming activities especially as concerns the use of potentially toxic compounds in shrimp farms which could lead to deleterious effects in the environment. Efficient regulatory bodies/agencies to ensure sustainability of production system and compliance to stipulated guidelines will go a long way in the protection of the environment.
    Description: Includes:- 2 tables.;15 refs.
    Keywords: Aquaculture ; Nigeria ; Niger Delta ; freshwater environment ; Shrimp culture ; Shrimp fisheries
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    Format: 138-142
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23360 | 19325 | 2018-04-08 17:55:59 | 23360 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The acute toxicity of promethazine hydrochloride (phenergan) to Clarias gariepinus fingerlings was conducted using static bioassay under laboratory conditions. The 96h LC50 was determined as 172.5 mg/1. Mean mortality was 5, 10, 20, 50, 100% in the concentration of 69, 103.5, 138.0, 172.5 and 207 mg/1 respectively, while there was no mortality in the control treatment. There were significant differences (P〈0.05) on the effect of concentration, the higher the mortality of C. gariepinus fingerlings while toxicity of phenergan increased with duration of exposure. C. gariepinus showed increased hyperactivities, cell deformation, lesions and necrosis during the period of exposure. The physicochemical parameters also showed a slight increase as the concentration increased.
    Description: Includes:- 2 tables.;9 refs.
    Keywords: Aquaculture ; Ecology ; Pollution ; Clarias gariepinus ; Nigeria ; stress ; freshwater environment ; Toxicology ; Histopathology ; Biological stress
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23366 | 19325 | 2018-04-08 18:05:14 | 23366 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Nigeria has a coastline of 853km and over 14 million hectares of inland waters and thus owns significant fisheries. The contribution of fisheries to the Nigerian economy is significant in terms of supply of high quality dietary protein, income generation, creation of employment and enhanced inflow of foreign exchange earnings through shrimp export. However, due over-exploitation of the natural resources, by-catch and discard problem, inadequate infrastructure and social amenities development, inadequate supply of fish feed, fish seeds and slow adoption of new technology and management strategies etc. The domestic fish production (0.55 million tons) has fallen short of the demand (1.5million metric tons). Aquaculture development is the solution to the unpredictable production through capture or artisanal/industrial fisheries.
    Description: Includes:- 21 refs.
    Keywords: Aquaculture ; Fisheries ; Nigeria ; freshwater environment ; Aquaculture ; Brackishwater aquaculture ; Freshwater aquaculture ; Marine aquaculture ; Aquaculture development ; Fishery development
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23359 | 19325 | 2018-04-08 12:13:35 | 23359 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: A model fish smoking kiln was designed and fabricated to use agro-wastes (sawdust, palm kernel shell and rice bran) as alternative to conventionally used charcoal (control) as fuel energy source for smoking fish. Clarias gariepinus was washed, brined and smoked in chunks or whole in the kiln. The smoking kiln has an estimated capacity of 40kg of fish/batch with six fish trays and 36 fish hooks. Heat transfer is by conduction and convection. The rotatory wheel and axle on which the fish drying trays were anchored ensured even distribution of heat. The kiln has 69.4% energy efficiency and drying period of 10 hours at an average temperature range of 60 - 120degreesC, depending on the type of agro-waste used as source of fuel energy. The fuel conversion ratio, drying rates and calorific values of the different agro-waste products were also determined. Calorific value of the four agro-wastes ranged between 16.2MJ/Kg in palm kernel to 30MJ/Kg in charcoal. The drying rates of sawdust and rice bran compare favourably with charcoal and they produced smoked fish similar in dryness and quality with fish smoked with charcoal. Palm kernel had the least drying rate of smoked fish (weight/hour) during the 10-hour smoking duration.
    Description: Includes:- 3tables.;2 figs.;9refs.
    Keywords: Fisheries ; Clarias gariepinus ; Nigeria ; Akure ; freshwater environment ; Curing ; Processing fishery products ; Cured products
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23358 | 19325 | 2018-04-08 12:11:51 | 23358 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The aim of this study was to establish the efficacy of formalin in removing the adhesiveness of Clarias gariepinus eggs during artificial propagation and the effects on prospective fry. 1g of catfish eggs were put in five concentrations of formalin \{O.O (control), 0.4, 0.6, 0.8 and 1.0 mg/l\} at three exposure times (10, 15 or 20min). In each treatment, the detachment of eggs increases with exposure time but were not significantly different (P〉O.05). 0.4mg/1 of formalin had the highest number of detached eggs. At the highest formalin concentration 72% of the eggs still adhered together which provide a good substrate for the growth of fungi. The use of formalin delayed hatching of C. gariepinus eggs when compared with the control. The more the exposure period of C. gariepinus eggs to formalin, the higher the hatching time. Survival of fry was highest in the group that has been exposed to 0.4mg/1 and exposure period of l0min. At the highest concentration (1.0mg/l) and exposure period (20min), the survival was lower by 55.5%. Based on this study, the optimum concentration of formalin was O.4mg/l and exposure period of l0min. for the removal of egg adhesiveness, increase hatching and improved survival success of C. gariepinus.
    Description: Includes:- 4 figs.;10 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; Akure ; freshwater environment ; Preservatives ; Anticoagulants ; Coagulants ; Dispersants ; Fish culture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 143-147
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23362 | 19325 | 2018-04-08 17:58:42 | 23362 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: This study focused and examined gender issues in economics of fish farming in Maiduguri and its environs. The socio-economic characteristics of the fish farmers were examined. The profitability of the industry and constrains affecting fish farming in the study area were analyzed. Stratified random sampling technique was used due to the heterogeneous nature of the population considering 30% of the fish farmers as the sampled size. Descriptive statistics and net farm income were used to analyse the data obtained. It was revealed that 81.25% of the respondents were male while female fish farmers represented 18.75% of the respondents. 84.40% of the respondents had tertiary education while farmers with secondary certificate and adult education constituted 12.50% and 3.10% respectively. Net farm income profitability analysis of male and female farmers were N193,767:00 and N445,557:00 respectively. It was also observed that the major constraints militating against fish farming in the study area were scarcity of fingerlings, lack of improved technology, inadequate capital, high cost of equipments, lack of land and management difficulties. It was recommended that adequate training, continuous capacity building and improved technology in fish production must be made available to farmers: and farmers should have access to sources of fingerlings.
    Description: Includes:- 3 tables.;2 refs.
    Keywords: Aquaculture ; Sociology ; Nigeria ; Maiduguri ; Women in Fisheries ; freshwater environment ; Sex ; Fish culture ; Women
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 159-162
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23368 | 19325 | 2018-04-08 18:08:23 | 23368 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Seeds of the legume Afzelia africana were analyzed and evaluated for use as protein feedstuff in fish diets. The seeds were heated to inactivate the anti-nutritional factors. Two iso-nitrogenous diets (26%) were produced using A. africana or Bonga-fishmeal as protein sources and labeled FI and F2, respectively. The resulting pellets were sinking pellets and were well accepted by tilapia based on the reaction time to feed presence and proportion of pellets eaten within one hour. Fl pellets were more stable in water than F2 pellets with mean dissolution times of 190 mins and 135 mins, respectively
    Description: Includes:- 7 tables.;4 refs.
    Keywords: Aquaculture ; Nigeria ; freshwater environment ; Feeding experiments ; Feed composition ; Feed preparation ; Nutritional requirements ; Nutrition ; Fish culture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 188-189
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23374 | 19325 | 2018-04-10 16:10:47 | 23374 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The study determined the survival and the response of Oreochromis niloticus to different feeding compositions. 90 Oreochromis niloticus juveniles were fed different diets in triplicated treatments inside glass tanks. Treatment I comprised locally compounded diet; Treatment II, imported pelletized feed; and Treatment III - processed feathermeal based diet. Results showed that there was no significant differences (P〉0.05) in the weight gain, feed intake, survival and feed conversion ratio. However, Treatment I had the highest feed intake, while treatment n had the highest weight gain and feed conversion ratio.
    Description: Includes:- 4 tables.;21 refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; freshwater environment ; Feeding experiments ; Feed preparation ; Nutritional requirements ; Fish culture ; Survival
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 29-32
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23373 | 19325 | 2018-04-10 16:09:38 | 23373 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The contribution of tilapia aquaculture in Nigeria to world output is negligible due to stunting, poor market value among others. This paper evaluates the aquacultural credentials of tilapia, some genetic improvement technology in cultured tilapia, namely, ploidy, hormonal sex reversal. transgenic, hybridization, and the necessity of Genetic Improvement in accelerating tilapia production in Nigeria. Investigation reveals the presence of O. niloticus with the highest growth perfermancc index (~h1=3.11) for Lake Kanji which indicates high growth potential in suitable culture environment and could serve as a good starting point for genetic development. The presence of ”wesafu”, an ecotype cichlid, endemic to Epe lagoon, Lagos, which grows to 1500g in the wild, appears to be an excellent candidate for genetic improvement of a commercial strain for the growing aquaculture industry. Tilapia Genetic improvement in Nigeria is faced with a number of setbacks. This includes short- term, scattered and disjointed funding, inadequate genetic research facilities, ecological risk, inadequate skilled manpower and poor documentation of tilapia genetic resources among others. Considering the growing importance of tilapia culture, the need to document, conserve, evaluate and utilize tilapia genetic resources is highlighted to enhance the success of food security in Nigeria.
    Description: Includes:- 3 tables.;26 refs.
    Keywords: Aquaculture ; Oreochromis niloticus ; Nigeria ; Kainji L. ; freshwater environment ; Fish culture ; Genetics ; Selective breeding
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 23-28
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23371 | 19325 | 2018-04-10 16:06:58 | 23371 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: The variation in size and weight of fry and fingerlings of Clarias gariepinus has been a major factor affecting the success of hatchery production of the species. It encourages cannibalism, thus reducing the overall survival. The disparity in weight and population was assessed to determine the necessity of sorting as a reliable method of controlling size disparity and mortality in hatchery production. Two-week-old fry with average weight of 15mg and length range of 0.8-0.9cm were randomly sampled and stocked at 200 fry/litre in 30 litre circular tanks. The fish were fed for four weeks on 45% crude protein diet, ad libitum. At the end of four weeks, there were three groups; large, medium and small with mean weight of 4.02g, 1.24g and 0.17g, respectively. The cumulative mean weight was 1.8g, population ratio was 1:8:10 for large, medium and small, respectively.
    Description: Includes:- 1 fig.;10 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; freshwater environment ; Fingerlings ; Fry ; Weight ; Survival ; Induced breeding
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 16-18
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23377 | 19325 | 2018-04-10 16:16:41 | 23377 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: Hunger and malnutrition have remained amongst the most devastating problems facing the majority of Nigerian poor. These challenges and other social and economic objectives are the main forces driving aquaculture development to augment for food deficient, in particular fish, which is the cheapest source of protein. However looking at the aquaculture potential and the demand for fish, more needs to be done in aquaculture sub-sector. Unfortunately, despite the increase awareness, many people still remain skeptical about returns in aquaculture investment. This backdrop prompted the study, which empirically analyzed the situation based on two (2) semi-concrete ponds at NIFFR. The results which were extrapolated for five years shows a cost benefit ratio of 1.8, which indicated worthy investment. The results would essentially serve as guide to practitioners and intended fish farmers
    Description: Includes:- 5 tables.;12 refs.
    Keywords: Aquaculture ; Nigeria ; New Bussa ; Cost Benefit analysis ; freshwater environment ; Aquaculture ; Aquaculture development ; Costs
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 40-43
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23379 | 19325 | 2018-04-10 16:39:49 | 23379 | Fisheries Society of Nigeria
    Publication Date: 2021-07-14
    Description: There have been considerable efforts in recent years to modify fishing gears and practices to target particular sizes and species of fish (fin and shell) and other marine organisms more efficiently. By catch consideration and gear modification play an important role in regulation of several major fisheries and new by-catch reduction devices and other innovative gear modification are continuously being proposed and tested to mitigate against these problems, among which are the turtle excluder device (T.E.DS) in the shrimp trawls to reduce mortality of endangered sea turtle; sorting grids and scaring device in long line fisheries. This paper assesses the incidence of by catch in fisheries, provides a review of successful developments and application of selective fishing techniques that have been used to achieve by-catch reduction. Recommendations were also made on effective monitoring of fishing gears to ensure that devices aimed at reducing by-catch are included and fishermen use only the appropriate gears to limit by-catch and discards.
    Description: Includes:- 3 tables.;4 refs.
    Keywords: Fisheries ; Nigeria ; freshwater environment ; By catch ; Gear selectivity
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 48-51
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