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  • Fisheries  (237)
  • Conservation  (12)
  • Inorganic Chemistry
  • NOAA/National Marine Fisheries Service  (167)
  • Environment Agency North West
  • 1
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    River Ehen and tributaries SSSI (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10956 | 1256 | 2013-03-26 13:56:11 | 10956 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the River Ehen and Tributaries SSSI consultation Protocol for the Environment Agency with English Nature, produced in 1998. The Protocol is intended to provide for consistency of approach, to clarify responsibilities and help to streamline the statutory consultation and consenting procedures in which both organisations are involved. It provides guiding principles on the approach to management issues. Based on the operations likely to damage the special interest (OLDSI) which forms part of the SSSI notification, the protocol identified acceptable management activities which contribute to the special interest of the site and those which may adversely affect that interest. OLDSI includes activities such: land drainage consents, discharge consents, herbicides approvals, fish-stocking consents, fishing licences, abstraction and impoundment licences, consents to construct/test pump boreholes, integrated pollution Control Licences and Waste Management Licences, capital projects, flood defence maintenance works, water resources, fisheries, pollution control, ecology surveys and Recreation works.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Ehen catchment ; Inland waters ; Rivers ; Freshwater lakes ; Nature conservation ; SSSI ; OLDSI ; Freshwater pollution ; water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Format: 29
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  • 2
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    The history of contamination in sediments from the Mersey Estuary. Development of a chronology for the contamination of the Mersey Estuary by heavy metals and organochlorines (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11003 | 1256 | 2013-03-26 13:45:42 | 11003 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-26
    Description: This is the history of contamination in sediments from the Mersey Estuary: Development of a chronology for the contamination of the Mersey Estuary by heavy metals and organochlorines Report produced by the Environment Agency in 1998. This report looks at the history of industrial contamination of the Mersey and Ribble Estuaries back to the early part of the last century, many decades before the start of monitoring programmes providing a remarkably detailed picture of very complex changes. There is a clear record in the sediment of the contamination by each heavy metal (including: Cu, Cr, Hg, Pb, Zn) and organochlorine chemical (including DDT isomers and PCB congeners) studied. The results of the study clearly show the increases in levels of contamination as industry expanded early last century followed by various improvements as this century progressed. Each pollutant has its own idiosyncratic pattern of change with some improvements predating modern environmental concerns whilst other changes seem to relate directly to recent improvements in legislative control. Overall, for the pollutants studied, the results clearly demonstrate the magnitude of improvement that has been achieved in what was a very polluted area. The only major reservation to this story is that despite the wide range of substances covered, many other potentially important pollutants remain to be studied in a similar manner.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Mersey ; Ribble ; Inland waters ; Rivers ; Estuaries ; Heavy metals ; Lead ; Arsenic ; Chromium ; Copper ; Mercury ; Zinc ; Organochlorines ; HCB ; PCBs ; DDT ; Environmental Assessment ; Freshwater pollution ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 104
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  • 3
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    Mersey Estuary baseline survey. Analysis of macroinfaunal samples, literature review and database production (2021)
    Environment Agency North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11005 | 1256 | 2013-03-26 13:45:23 | 11005 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-26
    Description: This is the Mersey Estuary baseline survey: Analysis of macroinfaunal samples, literature review and database production report produced by the Environment Agency North West in 2002. This report presents an ecological review of the Mersey estuary along with an extensive bibliography of the available environmental literature for this system. The central objective of this programme has been to provide the information necessary to support the Environment Agency's review of existing and future consents (for discharges, abstractions etc) in the Mersey estuary. This review of consents was required because the Mersey had been designated as a Special Protection Area (SPA) under the EC Birds Directive. Therefore under Regulation 50 of the Conservation, the Environment Agency was responsible for reviewing any extant consent, or future applications, which may directly or indirectly, affected this SPA.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Mersey ; Inland waters ; Rivers ; Estuaries ; Survey ; Habitat Directive ; Birds Directive ; SPA ; Invertebrates ; Birds ; Sediment quality ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Format: 26
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  • 4
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    Netting in Black Moss Tarn 1954 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11042 | 1256 | 2013-03-30 13:23:21 | 11042 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-26
    Description: Five fishermen pulling net in Black Moss Tarn. This photo is part of a photo album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumbria ; Inland waters ; Tarns ; Fisheries ; Freshwater fish
    Repository Name: AquaDocs
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  • 5
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    Workers at Sprint Mill 1953 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11044 | 1256 | 2013-03-30 13:17:27 | 11044 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-26
    Description: Five men working in the reinforcement of the Sprint Mill weir in Cumbria, UK. This photo is part of a photo album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumbria ; Inland waters ; Rivers ; Fisheries ; Fish passes
    Repository Name: AquaDocs
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  • 6
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    20lb Pike from River Lune transferred by two men to Roan Head (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11046 | 1256 | 2013-03-30 13:19:48 | 11046 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two men with a 20 lb. pike from Lune being transferred to Roan Head, North West England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Management ; England ; Inland waters ; Rivers ; Freshwater fish ; Fisheries ; Fish farm
    Repository Name: AquaDocs
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  • 7
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    Pulling net in Lune Estuary 1949 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11051 | 1256 | 2013-03-30 13:21:01 | 11051 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two fishermen pulling a net in a boat in Lune Estuary, North West England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lune estuary ; Estuaries ; Marine fisheries
    Repository Name: AquaDocs
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  • 8
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    Rooks fish pass at Garstang Weir in River Wyre (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11059 | 1256 | 2013-03-30 13:22:06 | 11059 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Rooks fish pass at Garstang Weir in the River Wyre, North West England, UK. This photo shows pollution in River Lune in July 1949. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Freswater fish ; Migratory fish ; Fish passes
    Repository Name: AquaDocs
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  • 9
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    Fishing eels (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11065 | 1256 | 2013-03-30 13:22:33 | 11065 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: An unidentified man on a Winter day with more than ten eels over snow. The photo was taken at an unidentified location in the North West of England. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Inland waters ; Rivers ; Fisheries ; Fishing ; Eels
    Repository Name: AquaDocs
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  • 10
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    River Lune the Baulk, Cockersand Abbey Lighthouse 1949 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11068 | 1256 | 2013-03-30 13:23:02 | 11068 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Cockersand Abbey Lighthouse, in River Lune the Baulk, River Lune estuary on the Lancashire Fylde peninsula in the North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lune estuary ; Estuaries ; Marine fisheries
    Repository Name: AquaDocs
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  • 11
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    Baines Pool Hen Pike caught 7.3.1950 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11069 | 1256 | 2013-03-30 13:23:13 | 11069 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: A fisherman with a hen pike caught on the 7.3.1950 at Baines Pool, North West of England, UK. This photo is part of a photo album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Freshwater fish
    Repository Name: AquaDocs
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  • 12
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    Hindburn Force Weir in 1954 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11071 | 1256 | 2013-03-30 13:23:38 | 11071 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Photo of Hindburn Force Dam, North West of England, UK, including a fish pass. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Fisheries ; River works ; Fish pass
    Repository Name: AquaDocs
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  • 13
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    Churchtown Weir in the River Wyre May 1949 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11078 | 1256 | 2013-03-30 13:24:07 | 11078 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: ChurchTown Weir in the River Wyre, North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Freswater fish
    Repository Name: AquaDocs
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  • 14
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    Fish Trap at Gastang weir in the River Wyre in August 1951 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11079 | 1256 | 2013-03-30 13:24:15 | 11079 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Fish trap at Garstang weir in the River Wyre, North West of England, UK. This photo shows pollution in River Lune in July 1949. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Freswater fish ; Migratory fish ; Fish passes
    Repository Name: AquaDocs
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  • 15
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    A report on the strategic fisheries stock assessment survey of the minor catchments in South West Cumbria 1996 with particular reference to salmonids (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11088 | 1256 | 2013-03-29 14:15:54 | 11088
    Details
    Publication Date: 2021-06-27
    Description: This is the report on the strategic fisheries stock assessment survey of the minor catchments in South West Cumbria 1996 with particular reference to salmonids, produced by North West Water in 1994. The 1996 Minor Catchment survey indicates variations in salmonid production within these catchments. Survey results indicate that production may be reaching its limit in certain areas whilst others are underachieving and others are unsuitable for salmonid production. Trout production within the catchments is higher and more widespread than that of salmon. Water quality levels vary considerably between catchments and intra-annually within individual catchments. The need for selective habitat surveys, with a view to habitat improvement schemes (H.I.S) is discussed. This report formed a basis for subsequent reports, thus, allowing data comparisons and analysis of production level fluctuations. It was the most extensive assessment of these catchments to date, taking into account comparisons with the new National Database on salmonid production in England and Wales.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; South West Cumbria ; Inland waters ; Rivers ; Freshwater fish ; Fish populations ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics ; Fishery data ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 13
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  • 16
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    A hydraulic investigation of the River Lune. (2021)
    Environment Agency North West | UK
    In:  http://aquaticcommons.org/id/eprint/11093 | 1256 | 2013-03-29 14:19:10 | 11093 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-24
    Description: Historic film on the River Lune, North England, UK. It shows the River Lune near its estuary at Lancaster. The film was made in the summer of 1972 over several weeks and is 14:25 minutes long. It combines aerial shots of the River, scientific and hydraulic work by the University of Salford which worked on a new weir of the Lune (Skerton Weir). Audio commentary explains the work. The film was produced by Cinephoto House, Manchester, on behalf of the predecessor orgenaisation of the Environment Agency, UK. The intended audience of the film is unknown.
    Description: Environment Agency Archives North West
    Description: The film has been digitised from 16mm cine film. A higher resolution video of the film can be found here: http://www.youtube.com/watch?v=ixyCQewKPDU
    Keywords: Engineering ; Fisheries ; Limnology ; England ; Skerton Weir ; Lancaster ; River flow ; Estuaries ; Fish passage ; Flooding ; Forge Weir ; Hydraulic models ; Engineering ; Tide ; fish migration
    Repository Name: AquaDocs
    Type: other
    Format: text/html
    Format: video/mp4
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  • 17
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    Report on fisheries invertebrate survey of the Groove Beck,Thornsgill Beck,Troutbeck system (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11101 | 1256 | 2013-04-03 15:27:14 | 11101 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-28
    Description: This is the Report on fisheries invertebrate survey of the Groove Beck, Thornsgill Beck and Troutbeck system produced by the Environment Agency North West in 1997. In 1996 the National Rivers Authority (NRA) report on the 1992 strategic stock assessment for the Upper Derwent catchment Jane Atkins recommended that should subsequent electrofishing show continued low densities, a survey of the invertebrate fauna should be undertaken to assess the food availability for salmonids, in order that lack of food could be ruled out as a contributory factor in their poor breeding success. Additionally the survey 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: + tables
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Groove Beck ; Thornsgill Beck ; Trout Beck ; Inland waters ; Rivers ; Environmental survey ; Freshwater fishes ; Migratory species ; Invertebrate larvae
    Repository Name: AquaDocs
    Type: monograph
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  • 18
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    South Pennine Moors cSAC-SPA. North West Region-South Area (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10986 | 1256 | 2013-03-26 13:50:54 | 10986 | Environment Agency, UK (Freshwater Biological Association)
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    Publication Date: 2021-06-25
    Description: This is the report on Habitats Directive, the Review of Consents Stage 1 and 2 by the Environment Agency of the South Pennine Moors cSAC/SPA.The Habitats Directive has the main aim to promote the maintenance of biodiversity by defining a common framework for the conservation of wild plants and animals and habitats of community interest. The Directive establishes a European ecological network known as "Natura 2000". The network comprises Special Areas of Conservation (SAC) and Special Protection Areas (SPA). In the section on Stage 1 or Screening Process of the Habitat Directive, it is identified the likely impacts upon the Rixton Clay Pits cSAC of a project, plan or activities, either alone or in combination with other projects, plans or activities, and considers whether these impacts are likely to be significant. In the section on Stage 2 or Appropiate Assessment of the Habitat Directive, it is considered the impact on the integrity of the Rixton Clay Pits cSAC of the projects, plans or activities, either alone or in combination with other projects, plans or activities, with respect to the site’s structure and function and its conservation objectives. Additionally, where these are adverse impacts, an assessment of the potential mitigation of those impacts. The criteria used in this report to identify relevant projects, plans or activities and their impacts are water quality discharge consents, waste management licences, abstraction licences, Integration Pollution Control (IPC) and Integrated Pollution Prevention Control (IPPC) permits. Proformas, hydrogeological and GIS maps are included in the review.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; South Pennine Moors ; Habitats Directive ; SAC ; SPA ; Screening ; Assessment ; Impacts ; Waste management ; Discharge licences ; Abstraction licences ; Pollution prevention ; Pollution control
    Repository Name: AquaDocs
    Type: monograph
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  • 19
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    Rostherne Mere water level management plan. Draft 1 November 1996 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10995 | 1256 | 2013-03-26 13:48:07 | 10995 | Environment Agency, UK (Freshwater Biological Association)
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    Publication Date: 2021-06-26
    Description: This is the Water Level Management Plan for the Rostherne Mere by the Environment Agency. The purpose of the Plan is to provide a formal basis for managing the land drainage system and water supply system of the area in order to provide a sustainable balance between the conservation and agricultural interest in the area. No changes are proposed to present water level management or maintenance practices unless and until such changes are agreed by all parties.The report contains sections on description of Site, water level management, maintenance, nature conservation, agriculture, fisheries, archaeology, water quality and water resources, development adjacent to watercourses, contingencies and objectives of the Water Level Management.
    Description: Environment Agency Archives North West
    Description: +appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Rostherne Mere ; Habitats Directive ; Drainage management ; Environmental assessment ; Water level ; Water supply ; Sustainable Conservation ; Agricultural interest
    Repository Name: AquaDocs
    Type: monograph
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  • 20
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    Water quality monitoring in the Mersey (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11004 | 1256 | 2013-03-26 13:45:32 | 11004
    Details
    Publication Date: 2021-06-26
    Description: This is the Water Quality Monitoring in the Mersey Estuary report produced by the Environment Agency in 2001. This report focuses on the Water Quality Monitoring Programme held in the Mersey Estuary. Since the mid-1960s water samples have been collected at approximately monthly intervals along the length of the estuary between Warrington and New Brighton and in later years further off-shore. This data-set provides an invaluable resource to determine how the very large capital spending of recent years has resulted in the dramatic improvements in water quality that we are now able to record. Initially, the interest was focused on parameters such as dissolved oxygen, BOD, nutrients and suspended solids. Over the last decades, as analytical methods have improved, toxic metals and persistent organic compounds have been included in the routine monitoring programme at a limited number of sites. Moreover, with the introduction of the European Water Framework Directive monitoring programmes it was an opportune time to review the Mersey monitoring strategy. This revised monitoring programme required data from several other components (water, sediments, flora, fauna, fish and birds. This report also contains information about Routine monthly surveys, Special surveys, Chloralkali Directive, UKNMP, British Geological Survey, EDMAR and NERC Environmental Diagnostics Thematic Programme.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Mersey ; Inland waters ; Rivers ; Estuaries ; Freshwater pollution ; Heavy metals ; Chloralkali Directive ; Environmental Quality Standards (EQS) ; Water quality
    Repository Name: AquaDocs
    Type: monograph
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  • 21
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    Electrofishing in streams that dry up in the 50's (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11055 | 1256 | 2013-03-30 13:21:37 | 11055 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Three men electrofishing in an unknown a dry stream in North West England, UK, in the 50's. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association. The exact date of this image is unknown.
    Keywords: Fisheries ; Limnology ; England ; Inland waters ; Rivers ; Fisheries ; Freshwater fish ; Electrofishing
    Repository Name: AquaDocs
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  • 22
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    Stockdale Beck waiting for spawners 1954 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11054 | 1256 | 2013-03-30 13:21:28 | 11054 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Three men walking through the Stockdale Beck, North West England, UK, waiting for spawners in 1954. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; North Yorkshire ; Inland waters ; Rivers ; Fisheries ; Freshwater fish
    Repository Name: AquaDocs
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  • 23
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    Collins Weir in River Wyre 1935 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11056 | 1256 | 2013-03-30 13:21:48 | 11056 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Collins Weir in River Wyre, North West England, UK. Photo taken on the 7th of September 1935. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Freswater fish
    Repository Name: AquaDocs
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  • 24
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    New Weir and Fish Pass Whitendale in August 1951 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11064 | 1256 | 2013-03-30 13:22:25 | 11064 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two men working in a weir and fish pass at Whitendale, North West England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Engineering ; Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Fisheries ; River works ; Weir ; Fish pass
    Repository Name: AquaDocs
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  • 25
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    Abbeystead Fish Pass in the River Wyre, 1949 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11074 | 1256 | 2013-03-30 13:23:46 | 11074 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Photo of a check trap in Abbeystead Fish Pass in the River Wyre in 1949. The River Wyre is located in the North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology
    Repository Name: AquaDocs
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  • 26
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    Hatching cage Tower Mill, 1950 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11075 | 1256 | 2013-03-30 13:23:59 | 11075 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Photo of a hatching cage in Tower Mill, an unidentified location in the North West of England, UK. The image was taken in 1950. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Inland waters ; Hatcheries
    Repository Name: AquaDocs
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  • 27
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    A report on the strategic fisheries stock assessment survey of the River Winster 1995 together with a coarse fish survey in 1994 and reference to the 1995 drought (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11089 | 1256 | 2013-03-29 14:15:40 | 11089 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the report on the strategic fisheries stock assessment survey of the River Winster 1995 together with a coarse fish survey in 1994 and reference to the 1995 drought, produced by the Environment Agency North West in 1996. Salmonid production within the Winster catchment was dominated by trout although good densities of salmon juveniles were found on some main river sites. Despite suffering drought conditions for much of 1995, only salmon fry production appeared to have been affected. Coarse fish populations once found in the lower reaches of the Winster appear to have declined to very low levels with no fish sampled. This may be partly due to broken tidal gates allowing saline intrusion. It seems that the lower river was suited to the development of a recreational coarse fishery, now that the gates have been repaired. This report completes the strategic stock assessment surveys planned for the period 1992-1995. It represents the last major catchment that was surveyed to determine the current status of fisheries in the South and South West Cumbria areas.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; River Winster ; Inland waters ; Rivers ; Freshwater fish ; Fish populations ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics ; Fishery data ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Format: 13
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  • 28
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    Leven estuary project. Fisheries Department final report (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11092 | 1256 | 2013-03-29 14:14:36 | 11092 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the report on the Leven estuary project: Fisheries Department final report produced by the Environment Agency North West in 1997. This report contains information about Leven estuary, river Leven catchment, river Crake catchment and the Ulverston Discharges. The Leven estuary is characterised by being very shallow, and shares the extremely variable tides and currents that characterize the whole of Morecambe Bay. There was little detailed knowledge of the impact on the Leven estuary, and particularly its fisheries, of the discharges from Ulverston. There has been some concern expressed by the lave netsmen and the general public about the possible harmful effects of the effluents on the biology of the estuary. In the absence of a definite strategy for the protection and management of the estuary was born this project. The project involves water quality monitoring, effluent and estuary toxicity testing, tracking of effluent plumes, and salmonid tagging and tracking. The entire project commenced in June 1995 and was expected to reach a conclusion in March 1997. The information gained from the project was expected to contribute to the creation of a 'mixing zone' for the effluent, and to improve the environmental management of the estuary and protection of its fishery.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; River Leven ; Leven estuary ; River Crake ; Inland waters ; Estuaries ; Freshwater fish ; Fish populations ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics ; Fishery data ; Freshwater pollution ; Water quality
    Repository Name: AquaDocs
    Type: monograph
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  • 29
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    Brown trout habitat assessment on the River Bela catchment (as recommended by the strategic fisheries stock assessment task group 1995) (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11091 | 1256 | 2013-03-29 14:15:05 | 11091 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the Brown trout habitat assessment on the River Bela catchment produced by the Environment Agency North West in 1997. The Environment Agency (EA) and its predecessor the National Rivers Authority undertook strategic fish stock assessments in 1992 and 1995 on the River Bela catchment. These surveys found low numbers of brown trout {Salmo trutta) at some sites. Following this, habitat evaluation assessments were undertaken on the eleven poorest sites Factors probably responsible for declining trout populations on the three main tributaries of the Bela catchment include: Overgrazing by farm stock; Lack of suitable cover for parr; the absence of suitable spawning areas; existing potential of certain areas within the catchment not being utilised, due to poor dispersal. Habitat Improvement Schemes (H.I.S) are discussed and prioritised.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; River Bela ; Inland waters ; Rivers ; Freshwater fish ; Fish populations ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics ; Fishery data ; Water quality ; H.I.S.
    Repository Name: AquaDocs
    Type: monograph
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  • 30
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    The River Ehen salmonid fishery - current status and a summary of fisheries work 1993-1996 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11090 | 1256 | 2013-03-29 14:15:29 | 11090 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the report on the River Ehen salmonid fishery - current status and a summary of fisheries work during the period 1993-1996, produced by the Environment Agency North West in 1997. This report draws together a number of investigations and surveys undertaken following the 1993 Strategic fisheries survey of the River Ehen. It specifically details the historic catch data available for this catchment for both salmon and sea trout and examines the current stock levels based on this data. Concerns over sea trout stock levels are raised and a detailed examination of the possible limiting factors involved is included. Information from surveys on the River Keekle is analysed with reference to its potential for sea trout production both currently and with the proposed clean up on Oatlands tip. Salmon production in the historically acidified River Liza sub catchment is examined along with ways of boosting production further following recent reductions in acidic episodes. Future and current issues and actions required in the catchment are listed along with the responsible party and estimated costs involved.
    Description: Environment Agency Archives North West
    Description: + maps
    Keywords: Fisheries ; Limnology ; Management ; England ; River Ehen ; Inland waters ; Rivers ; Freshwater fish ; Fish populations ; Migratory species ; Freshwater fish ; Fish passes ; Fish catch statistics ; Fishery data ; Water quality
    Repository Name: AquaDocs
    Type: monograph
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  • 31
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    Cheshire stillwaters summary results 1999 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10914 | 1256 | 2013-03-22 14:06:01 | 10914 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Cheshire stillwaters summary results 1999 from the Environment Agency North West. In May 1997, a Stillwaters meeting was held to discuss the way forward in stillwaters monitoring. It decided upon the establishment of a three year rolling programme, in which three stillwaters would be monitored three times a year, every third year. During 1999, stillwaters monitored for the third year of the Stillwaters Monitoring Programme were Tabley Mere, Comber Mere and Norbury Mere. Surveys of Petty Pool and Betley Mere continued for a second and third year respectively after water quality concerns were highlighted in previous end-of-year reports. Oak Mere was also surveyed for the third year running due to its unusual ecology. This year, the variety of parameters monitored was limited to algal, zooplankton and water chemical samples. Fisheries and marginal invertebrate surveys were not completed due to lack of resources.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters ; Pollution ; Fish surveys
    Repository Name: AquaDocs
    Type: monograph
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  • 32
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    Stillwaters monitoring programme. Summary results 2001 and 2002 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10915 | 1256 | 2013-03-22 14:04:59 | 10915 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Stillwaters monitoring programme. Summary results 2001 and 2002 from the Environment Agency North West. Until January 2001 the South Area Stillwaters Sampling Programme consisted of a rolling programme where five to six stillwaters were sampled three times a year (spring, summer and autumn). However, this method was not yielding the water quality information required for long term monitoring. Local weather conditions influence short-term water quality events, e.g. algal blooms, nutrient consumption, stratification, super-saturation etc, so results from one day sampling could only be regarded as individual ‘spot’ samples. Therefore year-on-year comparisons could not be made. It was decided that long-term water quality monitoring of the stillwaters would benefit more from sampling nutrient abundance over winter months. This would give an insight into the carry-over of nutrients available for algal growth the following year and so year-on-year productivity could be assessed. Survey results shown in this report were from: The Mere, Rostherne Mere, Melchett Mere, Tabley Mere, Tatton Mere, Hatchmere, Oak Mere, Black Lake, Chapel Mere, Bar Mere, Oss Mere, Marbury Big Mere, Comber Mere and Betley Mere.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters ; Pollution ; Fish surveys
    Repository Name: AquaDocs
    Type: monograph
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  • 33
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    Stillwaters monitoring programme. Summary results 2004 and 2005 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10917 | 1256 | 2013-03-22 14:03:12 | 10917 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Stillwaters monitoring programme. Summary results 2004 and 2005 from the Environment Agency North West. This report focuses on the 5th year of winter monitoring analysis in 14 stillwaters in Cheshire. The 14 stillwaters analysed are: Comber Mere, Oss Mere, Marbury Big Mere, Chapel Mere, Bar Mere, Oak Mere, Hatch Mere, Black Lake, Betley Mere, Tabley Mere, Melchett Mere, Tatton Mere, Rostherne Mere and Mere mere. Nutrient availability in the stillwaters analysed is used to look into the productivity of the waterbody. Bank-side water samples were taken for nutrients (Nitrogen and Phosphorous) and chlorophyll. A YSI multi-parameter sonde measures temperature, pH, specific conductivity and dissolved oxygen (% saturation).
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 34
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    Oak Mere continuous monitoring summary report, 1997 to 2000 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10918 | 1256 | 2013-03-22 14:01:32 | 10918 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Oak Mere continuous monitoring summary report, 1997 to 2000 from the Environment Agency North West. This report focuses on the continuous monitoring programme made by a multi -parameter probe in Oak Mere since summer 1997. From 1999 nutrient and chlorophyll samples were taken when the water quality instrument was serviced. Water level measurements were made since 1998. Moreover, the report shows a summary Oak mere water quality of each year (1997-2000). The physico-chemical parameters and nutrient levels included are: temperature, specific conditions, dissolved oxygen, pH, Depth, secchi disc measurements, chlorophyll a, total Phosphorus, orto-Phosphate, Nitrate, Ammonia, and Silicate.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Oak Mere ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Inland waters
    Repository Name: AquaDocs
    Type: monograph
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  • 35
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    An atlas of reproductive development in rockfishes, genus Sebastes (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  Frank.Morado@noaa.gov | http://aquaticcommons.org/id/eprint/14558 | 403 | 2014-02-21 00:23:40 | 14558 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: The genus Sebastes consists of over 100 fish species, all of which are viviparous and long-lived. Previous studies have presented schemes on the reproductive biology of a single targeted species of the genus Sebastes, but all appear to possess a similar reproductive biology asevidenced by this and other studies. This atlas stages major events during spermatogenesis, oogenesis, and embryogenesis, including atresia, in six species of Sebastes (S. alutus, S. elongatus, S. helvomaculatus, S. polyspinis, S. proriger, and S. zacentrus). Our study suggests that the male reproductive cycle of Sebastes is characterized by 11 phases of testicular development, with 10 stages of sperm development and 1 stage of spermatozoa atresia. Ovarian development was divided into 12 phases, with 10 stages of oocyte development, 1 stage of embryonic development, and 1 stage of oocyte atresia. Embryonic development up to parturition was divided into 33 stages following the research of Yamada and Kusakari (1991). Reproductive development of all six species examined followed the developmental classifications listed above which may apply to all species of Sebastes regardless of the number of broods produced annually. Multiple brooders vary in that not all ova are fertilized and progress to embryos; a proportion of ova are arrested at the pre-vitellogenic stage. Reproductive stage examples shown in this atlas use S. elongates for spermatic development, S. proriger for oocyte development, and S. alutus for embryological development, because opportunistic sampling only permitted complete analysis of each respective developmental phase for those species. The results of this study and the proposed reproductive phases complement the recommended scheme submitted by Brown-Peterson et al. (2011), who call for a standardization of terminology for describing reproductive development of fishes.
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 36
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    A guide to the deep-water sponges of the Aleutian Island Archipelago (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  Bob.Stone@noaa.gov | http://aquaticcommons.org/id/eprint/14560 | 403 | 2014-02-21 00:22:19 | 14560 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: The first dedicated collections of deep-water (〉80 m) sponges from the central Aleutian Islands revealed a rich fauna including 28 novel species and geographical range extensions for 53 others. Based on these collections and the published literature, we now confirm the presence of 125 species (or subspecies)of deep-water sponges in the Aleutian Islands. Clearly the deep-water sponge fauna of the Aleutian Islands is extraordinarily rich and largely understudied. Submersible observations revealed that sponges, rather than deep-water corals, are the dominant feature shaping benthic habitats in the region and that they provide important refuge habitat for many species of fish and invertebrates including juvenile rockfish (Sebastes spp.) and king crabs (Lithodes sp). Examination of video footage collected along 127 km of the seafloor further indicate that there are likely hundreds of species still uncollected from the region, and many unknown to science. Furthermore, sponges are extremely fragile and easily damaged by contact with fishing gear. High rates of fishery bycatch clearly indicate a strong interaction between existing fisheries and sponge habitat. Bycatch in fisheries and fisheries-independent surveys can be a major source of information on the location of the sponge fauna, but current monitoring programs are greatly hampered by the inability of deck personnel to identify bycatch. This guide contains detailed species descriptions for 112 sponges collected in Alaska, principally in the central Aleutian Islands. It addresses bycatch identification challenges by providing fisheries observers and scientists with the information necessary to adequately identify sponge fauna. Using that identification data, areas of high abundance can be mapped and the locations of indicator species of vulnerable marine ecosystems can be determined. The guide is also designed for use by scientists making observations of the fauna in situ with submersibles, including remotely operated vehicles and autonomous underwater vehicles.
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 187
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  • 37
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    Our living oceans: report on the status of U.S. living marine resources, 6th edition (2021)
    NOAA/National Marine Fisheries Service | Washington, D.C.
    In:  http://aquaticcommons.org/id/eprint/14563 | 403 | 2014-02-19 22:20:21 | 14563 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: The National Marine Fisheries Service (NMFS) is dedicated to the stewardship of living marine resources (LMR’s). This is accomplished through science-based conservation and management, and the promotion of healthy ecosystems. As a steward, NMFS has an obligation to conserve, protect, and manage these resources in a way that ensures their continuation as functioning components of healthy marine ecosystems, affords economic opportunities, and enhances the quality of life for the American public. In addition to its responsibilities within the U.S. Exclusive Economic Zone (EEZ), NMFS plays a supportive and advisory role in the management of LMR’s in the coastal areas under state jurisdiction and provides scientific and policy leadership in the international arena. NMFS also implements international measures for the conservation and management of LMR’s, as appropriate.NMFS receives its stewardship responsibilities under a number of Federal laws. These include the Nation’s primary fisheries law, the Magnuson Fishery Conservation and Management Act. This law was first passed in 1976, later reauthorized as the Magnuson-Stevens Fishery Conservation and Management Act in 1996, and reauthorized again on 12 January 2007 as the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act (MSRA). The MSRA mandates strong action to conserve and manage fishery resources and requires NMFS to end overfishing by 2010 in all U.S. commercial and recreational fisheries, rebuild all overfished stocks, and conserve essential fish habitat.
    Keywords: Ecology ; Fisheries ; Management
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
    Format: 369
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  • 38
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    Age determination manual of the Alaska Fisheries Science Center Age and Growth Program (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  beth.matta@noaa.gov | http://aquaticcommons.org/id/eprint/14559 | 403 | 2014-02-21 00:23:02 | 14559 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: The Age and Growth Program at the Alaska Fisheries Science Center is tasked with providing age data in order to improve the basic understanding of the ecology and fisheries dynamics of Alaskan fish species. The primary focus of the Age and Growth Program is to estimate ages from otoliths and other calcified structures for age-structured modeling of commercially exploited stocks; however, the program has recently expanded its interests to include numerous studies on topics ranging from age estimate validation to the growth and life history of non-target species. Because so many applications rely upon age data and particularly upon assurances as to their accuracy and precision, the Age and Growth Program has developed this practical guide to document the age determination of key groundfish species from Alaskan waters. The main objective of this manual is to describe techniques specific to the age determination of commercially and ecologically important species studied by the Age and Growth Program. The manual also provides general background information on otolith morphology, dissection, and preparation, as well as descriptions of methods used to measure precision andaccuracy of age estimates. This manual is intended not only as a reference for age readers at the AFSC and other laboratories, but also to give insight into the quality of age estimates to scientists who routinely use such data.
    Keywords: Ecology ; Fisheries ; Management
    Repository Name: AquaDocs
    Type: monograph
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  • 39
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    Guide to the identification of larval and early juvenile pricklebacks (Perciformes: Zoarcoidei: Stichaeidae) in the northeastern Pacific Ocean and Bering Sea (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  ann.matarese@noaa.gov | http://aquaticcommons.org/id/eprint/14557 | 403 | 2014-03-10 21:09:22 | 14557 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: Stichaeidae, commonly referred to as pricklebacks, are intertidal and subtidal fishes primarily of the North Pacific Ocean. Broad distribution in relatively inaccessible and undersampled habitats has contributed to a general lack of information about this family. In this study, descriptions of early life history stages are presented for 25 species representing 18 genera of stichaeid fishes from the northeastern Pacific Ocean, Bering Sea, and Arctic Ocean Basin. Six of these species also occur in the North Atlantic Ocean. Larval stages of 16 species are described for the first time. Additional information or illustrations intended to augment previous descriptions are provided for nine species. For most taxa, we present adult and larval distributions, descriptions of morphometric, meristic, and pigmentation characters, and species comparisons, and we provide illustrations for preflexion through postflexion or transformation stages. New counts of meristic features are reported for several species.
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 40
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    Larval development and identification of the genus Triglops (Scorpaeniformes: Cottidae) (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  Debbie.Blood@noaa.gov | http://aquaticcommons.org/id/eprint/14562 | 403 | 2014-02-21 00:20:54 | 14562 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: Prior to Pietsch’s (1993) revision of the genus Triglops, identification of their larvae was difficult; six species co-occur in the eastern North Pacific Ocean and Bering Sea and three co-occur in the western North Atlantic Ocean. We examined larvae from collections of the Alaska Fisheries Science Center and Atlantic Reference Centre and used updated meristic data, pigment patterns, and morphological characters to identify larvae of Triglops forficatus, T. macellus, T. murrayi, T. nybelini, T. pingeli, and T. scepticus; larvae of T. metopias, T. dorothy, T. jordani, and T. xenostethus have yet to be identified and are thus not included in this paper. Larval Triglops are characterized by a high myomere count (42–54), heavy dorsolateral pigmentation on the gut, and a pointed snout. Among species co-occurring in the eastern North Pacific Ocean, T. forficatus, T. macellus, and T. pingeli larvae are distinguished from each other by meristic counts and presence or absence of a series of postanal ventral melanophores. Triglops scepticus is differentiated from other eastern North Pacific Ocean larvae by having 0–3 postanal ventral melanophores, a large eye, and a large body depth. Among species co-occurring in the western North Atlantic Ocean, T. murrayi and T. pingeli larvae are distinguished from each other by meristic counts (vertebrae, dorsal-fin rays, and anal-fin rays once formed), number of postanal ventral melanophores, and first appearance and size of head spines. Triglops nybelini is distinguished from T. murrayi and T. pingeli by a large eye, pigment on the lateral line and dorsal midline in flexion larvae, and a greater number of dorsal-fin rays and pectoral-fin rays once formed.
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Marine and estuarine ecosystem and habitat classification (2021)
    NOAA/National Marine Fisheries Service | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14565 | 403 | 2014-02-19 22:33:38 | 14565 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: The Ecological Society of America and NOAA's Offices of Habitat Conservation and Protected Resources sponsored a workshop to develop a national marine and estuarine ecosystem classification system. Among the 22 people involved were scientists who had developed various regional classification systems and managers from NOAA and other federal agencies who might ultimately use this system for conservation and management. The objectives were to: (1) review existing global and regional classification systems; (2) develop the framework of a national classification system; and (3) propose a plan to expand the framework into a comprehensive classification system. Although there has been progress in the development of marine classifications in recent years, these have been either regionally focused (e.g., Pacific islands) or restricted to specific habitats (e.g., wetlands; deep seafloor). Participants in the workshop looked for commonalties across existing classification systems and tried to link these using broad scale factors important to ecosystem structure and function.
    Keywords: Conservation ; Ecology ; Policies
    Repository Name: AquaDocs
    Type: monograph
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  • 42
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    Marine Fisheries Stock Assessment Improvement Plan: report of the National Marine Fisheries Service National Task Force for Improving Fish Stock Assessments (2021)
    NOAA/National Marine Fisheries Service | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14566 | 403 | 2014-02-20 18:26:54 | 14566 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: This report argues for greatly increased resources in terms of data collection facilities and staff to collect, process, and analyze the data, and to communicate the results, in order for NMFS to fulfill its mandate to conserve and manage marine resources. In fact, the authors of this report had great difficulty defining the "ideal" situation to which fisheries stock assessments and management should aspire. One of the primary objectives of fisheries management is to develop sustainable harvest policies that minimize the risks of overfishing both target species and associated species. This can be achieved in a wide spectrum of ways, ranging between the following two extremes. The first is to implement only simple management measures with correspondingly simple assessment demands, which will usually mean setting fishing mortality targets at relatively low levels in order to reduce the risk of unknowingly overfishing or driving ecosystems towards undesirable system states. The second is to expand existingdata collection and analysis programs to provide an adequateknowledge base that can support higher fishing mortality targets while still ensuring low risk to target and associated species and ecosystems. However, defining "adequate" is difficult, especially when scientists have not even identified all marine species, and information on catches, abundances, and life histories of many target species, and most associated species, is sparse. Increasing calls from the public, stakeholders, and the scientific community to implement ecosystem-based stock assessment and management make it even more difficult to define "adequate," especially when "ecosystem-based management" is itself not well-defined. In attempting to describe the data collection and assessment needs for the latter, the authors took a pragmatic approach, rather than trying to estimate the resources required to develop a knowledge base about the fine-scale detailed distributions, abundances, and associations of all marine species. Thus, the specified resource requirements will not meet the expectations of some stakeholders. In addition, the Stock Assessment Improvement Plan is designed to be complementary to other related plans, and therefore does not duplicate the resource requirements detailed in those plans, except as otherwise noted.
    Keywords: Biology ; Ecology ; Fisheries ; Management
    Repository Name: AquaDocs
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  • 43
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    2007 biennial report to Congress on the progress and findings of studies of striped bass populations (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/14826 | 403 | 2014-02-28 21:18:46 | 14826 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: The 1997 reauthorization of the Atlantic Striped Bass Conservation Act (Striped Bass Act) mandated biennial reports to Congress and to the Atlantic States Marine Fisheries Commission (Commission) from the secretaries of the Department of Commerce and the Department of the Interior concerning the progress and findings of studies of Atlantic striped bass (Morone saxatilis). The Striped Bass Act specifically requests updates on studies that include, but are not limited to: annual stock assessments, investigations on the causes of fluctuations in Atlantic striped bass populations, the effects of environmental factors on the recruitment, spawning potential, mortality, and abundance of Atlantic striped bass populations, and investigations of interactions between Atlantic striped bass and other fish. This document is the fifth such report to Congress and includes data available through 2007 with emphasis on the 2005 and 2006 calendar years.
    Description: Submitted by the National Marine Fisheries Service and U.S. Fish and Wildlife Service to the Committee on Resources of the United States House of Representatives and the Committee on Commerce, Science, and Transportation of the United States Senate.
    Keywords: Fisheries ; Management
    Repository Name: AquaDocs
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  • 44
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    Central area redd project [Ribble, Hodder and Lune catchments] (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8380 | 1256 | 2012-03-01 17:30:43 | 8380 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: Redd counting is an integral part of most Fishery Officers duties. The number and distribution of salmonid redds throughout salmonid catchments provides invaluable information on the range and extent of spawning by both salmon and sea trout. A project was initiated by the Fisheries Science and Management Team of Central Area, North West Region in England in liaison with the Flood Defence function. The main objective of this project was to assess redd count data for Central Area and attempt to quantify these data in order to produce a grading system that would highlight key salmonid spawning areas. By showing which were the main areas for salmon and sea trout spawning, better informed decisions could be made on whether or not in-stream Flood Defence works should be given the go-ahead. The main salmonid catchments in Central Area were broken into individual reaches, approximately 1 km in length. The number of redds in these individual reaches were then calculated and a density per lkm value was obtained for each reach. A grading system was devised which involved looking at the range of density per km values and dividing this by five to produce 5 classes, A - E. A sixth class (F) was used where the density per Ion value was 0.00. This grading system was calculated at two levels of detail. Grades for salmon and sea trout were produced for each individual catchment and also on an Area-wide level. Maps were produced using a range of colours to represent the grade for each reach. These maps provide a highly useful overview of the status of salmonid spawning for each catchment over individual years and highlight the key salmon and sea trout spawning areas in each catchment. These maps and the associated summary data should now provide Flood Defence and Fisheries staff with a fairly detailed overview of the status of spawning in any location within the. main salmonid catchments in Central Area. Although these maps are very useful they should only be used as a guide. The current practice of consulting with the local Fishery Officer should be continued to ensure that expert local knowledge is taken into account.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; England ; Flood control ; Rivers ; Redds ; Spawning grounds ; Salmon fisheries ; Salmo salar ; Salmo trutta ; Stocking density
    Repository Name: AquaDocs
    Type: monograph
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  • 45
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    River Ribble sheep dip incident September 1997. Electric-fishing survey report (2021)
    Environment Agency North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8557 | 1256 | 2012-12-20 21:10:56 | 8557 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-03
    Description: This report summarises the findings of a series of electric-fishing surveys carried out at four sites on the River Ribble from September 1997 to September 1998. The aims of these surveys were to assess the impact on juvenile salmonids of a pollution incident involving Synthetic Pyrethrin (SP) that occurred near High Birkwith I (SD 802 767) in September 1997.One of these sites was 2.65km upstream of the pollution whilst the remaining three were at varying distances downstream. Data was collected during surveys of the River Ribble in 1992, 97 and 98. The 1997 and 1998 surveys were carried out specifically to monitor for any possible effects of the SP discharge.Data are shown as grades derived from the National Fisheries Classification scheme (NFC). Results are given for the four salmonid life stages; 0+ trout, 〉0+ trout, 0+ salmon, 〉0+ salmon and also Total Salmonids.
    Description: Environment Agency Archives North West
    Description: First year report
    Keywords: Fisheries ; Limnology ; England ; Ribble Catchment ; River Fisheries ; Salmon fisheries ; Fishery surveys ; Biological surveys ; Electric fishing ; Population density ; Juveniles ; Pollution effects
    Repository Name: AquaDocs
    Type: monograph
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  • 46
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    New Weir and Fish Pass Whitendale in August 1951 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11048 | 1256 | 2013-03-30 13:20:33 | 11048 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two men working in a weir and fish pass at Whitendale, North West England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Engineering ; Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Fisheries ; River works ; Weirs ; Fish passes
    Repository Name: AquaDocs
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  • 47
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    Workers drilling on Hindburn Force in 1954 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11053 | 1256 | 2013-03-30 13:21:20 | 11053 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two workers drilling on Hindburn Force, North West England, UK, making it more accesible for passing fish. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Fisheries ; River works ; Fish passes
    Repository Name: AquaDocs
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  • 48
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    Electrofishing at Gleaston Beck in 1954 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11045 | 1256 | 2013-03-30 13:17:55 | 11045 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-26
    Description: Five men electrofishing in Gleaston Beck, Cumbria, UK. This photo is part of a photo album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumbria ; Inland waters ; Rivers ; Freshwater fish ; Fisheries ; Electrofishing
    Repository Name: AquaDocs
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  • 49
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    Colton Beck obstruction removal 1953 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11047 | 1256 | 2013-03-30 13:20:19 | 11047 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: A worker drilling in Colton Beck,, North West England, UK, trying to make it more accessible for fish passing in 1953. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Engineering ; Fisheries ; Limnology ; England ; Cumbria ; Inland waters ; Rivers ; Fisheries ; River works
    Repository Name: AquaDocs
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  • 50
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    Planting Sea Trout Ova 1952 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11049 | 1256 | 2013-03-30 13:20:48 | 11049 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Three men planting out Sea trout ova in a beck in North West England, UK, in 1952. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Inland waters ; Rivers ; Fisheries ; Migratory species
    Repository Name: AquaDocs
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  • 51
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    Transfering Pike to Lancaster Canal March 1950 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11052 | 1256 | 2013-03-30 13:21:12 | 11052 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two fishermen and a boy transfering pike with a cylindrical keep net to Lancaster Canal, North West England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancaster Canal ; Inland waters ; Rivers ; Fisheries ; Freshwater fish
    Repository Name: AquaDocs
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  • 52
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    River Lune Pollution at Lancaster in July 1949 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11058 | 1256 | 2013-03-30 13:21:58 | 11058 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Houses close to River Lune at Lancaster, North West England, UK. This photo shows the polluted River Lune in July 1949. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Pollution ; England ; Lancashire ; Inland waters ; Rivers ; Estuaries ; Freswater pollution
    Repository Name: AquaDocs
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  • 53
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    Motor boat "Constance" (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11061 | 1256 | 2013-03-30 13:22:16 | 11061 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: A man on a white motor boat called "Constance" in North West England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Management ; England ; Fisheries ; Estuaries ; Marine
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  • 54
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    Helm and Beaver 1954 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11066 | 1256 | 2013-03-30 13:22:45 | 11066 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two men in a small motor boat. The photo is called "Helm and Beaver" which is probably a location in the North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Fisheries ; Estuaries ; Marine
    Repository Name: AquaDocs
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  • 55
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    Man with boat "Ribble" (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11067 | 1256 | 2013-03-30 13:22:53 | 11067 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: An unidentified man inside the water in an estuary with a motor boat called "Ribble" in a location in the North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Fisheries ; Estuaries ; Marine
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  • 56
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    Churchtown Weir in the River Wyre (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11080 | 1256 | 2013-03-30 13:24:25 | 11080 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Churchtown Weir in the River Wyre, North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; England ; Lancashire ; Inland waters ; Rivers ; Freswater fish ; Fish passes
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  • 57
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    Transfering pike to Lancaster Canal, March 1950 (2021)
    Environment Agency North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11070 | 1256 | 2013-03-30 13:23:28 | 11070 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: Two fishermen transfering pike using metal containers to the Lancaster Canal, North West of England, UK. This photo is part of a Photo Album that includes pictures from 1935 to 1954.
    Description: Environment Agency Archives North West
    Description: Image taken from Historic Photo Collection containing images on Fisheries and Fish pass construction from 1935 to 1954. The album, originally owned by the Environment Agency North West, is now held by the Freshwater Biological Association.
    Keywords: Fisheries ; Limnology ; Management ; England ; Lancaster Canal ; Inland waters ; Rivers ; Fisheries ; Freshwater fish
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  • 58
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    Cheshire stillwaters. Summary results of September 1998 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10912 | 1256 | 2013-03-22 14:07:34 | 10912 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Cheshire stillwaters. Summary results of September 1998 from the Environment Agency, 1998. In May 1997, a Stillwaters meeting was held to discuss the way forward in stillwaters monitoring. It decided upon the establishment of a three year rolling programme, in which three stillwaters would be monitored three times a year, every third year. Oak Mere, Tatton Park Mere and Hatch Mere were surveyed between the 29th - 30th September as part of the three year rolling programme. Betley Mere, Petty Pool, Scotman's Flash and Pearson's Flash were also surveyed. Surveys also included algal and zooplankton samples, which are to be analysed by APEM and presented in the end of year report. The section on results contains information about water column profile; and nutrients (chlorophyll a; Phaeophytin; Nitrate and Nitrite; Ammonia; ortho-Phosphate; Silicate; and total Phosphorus).
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Eutrophication ; Inland waters ; Pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Northeast Fisheries Observer Program manual, 2013 (2021)
    NOAA/National Marine Fisheries Service | Woods Hole, MA
    In:  http://aquaticcommons.org/id/eprint/14884 | 403 | 2014-03-07 19:48:28 | 14884 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The National Marine Fisheries Service (NMFS) Northeast Fisheries Science Center (NEFSC) Fisheries Sampling Branch (FSB) collects, maintains, and distributes data for scientific and management purposes in the northwest Atlantic Ocean. FSB manages three separate but related observer programs: the Northeast Fisheries Observer Program (NEFOP), the Industry Funded Scallop (IFS) Observer Program, and the At Sea Monitoring (ASM) Program. For the purposes of this manual, “observers” refers to any observer/monitor working for the FSB.In 2011, FSB trained and deployed over 200 observers, provided coverage on a variety of fisheries, and completed over 15,000 sea days. Observed trips are required under many of the region's fishery management plans, and for some fisheries by other federal laws and authorities such as Amendment 16 and Framework 44, Magnuson-Stevens Fishery Conservation and Management Act, Marine Mammal Protection Act, the Endangered Species Act, the and the Sustainable Fisheries Act.The purpose of this guide is to provide FSB observers, as well as end users of NEFSC Observer Program data, with a detailed description of each data field collected. In addition to this manual, the NEFSC Observer Program Biological Sampling and Catch Estimation Manual provides summaries and tables intended to enable observers to quickly determine the correct sampling protocols and methods while at sea.This manual represents a revision of the data forms, collection procedures, and protocols described in the 1996 NEFSC Observer Program Manual. For documentation of other changes see Documentation of changes made to the NEFSC Fisheries Observer Program Manual, 2013.
    Keywords: Fisheries ; Management ; Policies
    Repository Name: AquaDocs
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    Stillwaters monitoring programme.Summary results 2003 and 2004 (2021)
    Environment Agency North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10916 | 1256 | 2013-03-22 14:04:01 | 10916 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This is the Stillwaters monitoring programme. Summary results 2003 and 2004 from the Environment Agency North West. This report is focuses in The Winter Monitoring of Stillwaters Programme, which began in January 2001 with the aim of gathering long term data on nutrient abundance over winter months. This allows assessment of nutrient ‘carry-over’ available for algal growth in the following year, plus year-on-year productivity. 14 stillwaters are monitored each year. The environmental issues associated with each Stillwater are summarised in the table below. Bank-side water samples are taken for nutrients (N, P and S) and chlorophyll. A YSI multi-parameter sonde measures temperature, pH, specific conductivity and dissolved oxygen (% saturation). Survey results shown in this report came from: Oak Mere and Bar mere.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    A guide to the Thalassinidea (Crustacea: Malacostraca: Decapoda) of the South Atlantic Bight (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2477 | 403 | 2011-09-29 19:06:51 | 2477 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-13
    Description: Ghost shrimp and mud shrimp in the decapod infraorder Thalassinidea are ecologically important members of manybenthic intertidal and shallow subtidal infaunal communities, largely due to the sediment filtration and mixing that result from their burrowing and feeding behavior. These activities considerably modify their immediate environment and have made these cryptic animals extremely interesting to scientists in terms of their behavior, ecology, and classification.Over 20 years ago, seven species of thalassinideans were known from the South Atlantic Bight (Cape Hatteras, NC to Cape Canaveral, FL). During this study, the examinationof extensive collections from the National Museum of Natural History (NMNH), the Southeastern Regional Taxonomic Center (SERTC), and regional institutions, resultedin the identification of 14 species of thalassinideanscurrently known to occur within this region. The family Axiidae is represented by three species: Axius armatus, Calaxius jenneri, and Paraxiopsis gracilimana; the Callianassidae by six: Biffarius biformis, B. cf. fragilis, Callichirus major, Cheramus marginatus, Gilvossius setimanus, and Necallianassa berylae; the Calocarididae by two: Calocaris templemani and Acanthaxius hirsutimanus; andthe families Laomediidae, Thomassiniidae, and Upogebiidae are each represented by one: Naushonia crangonoides, Crosniera wennerae, and Upogebia affinis, respectively. Anillustrated key is presented for species level identification and supplemental notes on the ecology, distribution, and taxonomy of the species are provided.(PDF file contains 38 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 62
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    Genetic and morphological identification of pelagic juvenile rockfish collected from the Gulf of Alaska (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2476 | 403 | 2014-02-21 01:10:02 | 2476 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-13
    Description: Pelagic juvenile rockfish (Sebastes spp.) collected in surveys designed to assess juvenile salmonids and other species in the Gulf of Alaska in 1998 and 2000–2003provide an opportunity to document the occurrence of the pelagic juveniles of several species of rockfish. Often, species identification of rockfish is difficult or impossible at this stage of development (~20 to 60 mm),and few species indigenous to Alaska waters have been described. Use of mitochondrial DNA markers for rockfish species allowed unequivocal identification of ten species (S. aleutianus, S. alutus, S. borealis, S. entomelas, S.flavidus, S. melanops, S. pinniger, S. proriger, S. reedi, and S. ruberrimus) in subsamples from the collections. Other specimens were genetically assignable to groups of two or three species. Sebastes borealis, S. crameri, and S. reedi were identified using morphological data. Combining genetic and morphological data allowed successful resolution of the other species as S. emphaeus, probably S. ciliatus (although S. polyspinis cannot be totally ruled out), and S. polyspinis. Many specimens were initially morphologically indistinguishable from S. alutus, and several morphological groups included fish geneticallyidentified as S. alutus. This paper details the characteristics of these pelagic juveniles to facilitate morphological identification of these species in future collections. (PDF file contains 32 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 63
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    Emerging technologies for reef fisheries research and management [held during the 56th annual Gulf and Caribbean Fisheries Institute meeting in Tortola, British Virgin Islands, November 2003] (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2480 | 403 | 2011-09-29 18:56:12 | 2480 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-13
    Description: This publication of the NOAA Professional Paper NMFS Seriesis the product of a special symposium on “Emerging Technologies for Reef Fisheries Research and Management” held during the 56th annual Gulf and Caribbean Fisheries Institute meeting in Tortola, British Virgin Islands, November 2003. The purpose of this collection is to highlight the diversity of questions and issues in reeffisheries management that are benefiting from applications of technology. Topics cover a wide variety of questions and issues from the study of individual behavior, distribution and abundance of groups and populations, and associations between habitats and fish and shellfish species.(PDF files contains 124 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 64
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    Distribution patterns of fish eggs in the U.S. Northeast Continental Shelf Ecosystem, 1977-1987 (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2524 | 403 | 2011-09-29 18:49:44 | 2524 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: This atlas presents information on fish eggs and temperature data collected from broadscale ichthyoplankton surveys conducted off the U.S. northeast coast from ]977 to1987. Distribution and abundance information is provided for 33 taxa in the form of graphs and contoured egg-density maps by month and survey. Comments are included on interannual and interseasonal trends in spawning intensity. Data on 14 additional but less numerous taxa are provided in tabular form. (PDF file contains 316 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 65
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    Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2503 | 403 | 2011-09-29 18:58:46 | 2503 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-13
    Description: Identification problems are common for many sharks due to a general lack of meristic characteristics that are typicallyuseful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on external features that are often shared among species. Identification problems in the field are most prevalent when live specimens are captured and releasing them with a minimum of stress is a priority (e.g., shark tagging programs). Identifications mustbe accurate and conducted quickly but this can be challenging, especially if specimens are very active or too large to be landed without physical damage. This field guide was designed primarily for use during field studies and presents a simplified method for identifying the 21 species of western North Atlantic Ocean sharks belonging to the family Carcharhinidae (carcharhinids). To assist with identifications a dichotomous key to Carcharhinidae was developed, and for the more problematic Carcharhinus species (12 species), separation sheets based on importantdistinguishing features were constructed. Descriptive text and illustrations provided in the species accounts were developed from field observations, photographs, andpublished references. (PDF file contains 36 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 66
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    Synopsis of biological data on the Nassau grouper, Epinephelus striatus (Bloch, 1792), and the jewfish, E. itajara (Lichenstein, 1822) (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2523 | 403 | 2011-09-29 18:49:02 | 2523 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: Information on the biology, fishery resources, explotiation patterns, management, and conservation status of two species of grouper-the Nassau grouper, Epinephelus striatus, and the jewfish, Epinephelus itajara-is compiled, reviewed, and analyzed. (PDF file contains 68 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 67
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    Investigation of unusual mortalities of bottlenose dolphins along the mid-Texas coastal bay ecosystem during 1992 (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2522 | 403 | 2011-09-29 18:48:59 | 2522 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: An investigation was conducted into the deaths of more than 220 bottlenose dolphins (Tursiops truncatus) that occurred within the coastal bay ecosystem of mid-Texas between January and May 1992. The high mortality rate was unusual in that it was limited to a relatively small geographical area, occurred primarily within an inshore bay system separated from the Gulf of Mexico by barrier islands, and coincided with deaths of other taxa including birds and fish. Factors examined to determine the potential causes of the dolphin mortalities included microbial pathogens, natural biotoxins, industrial pollutants, other environmental contaminants, and direct human interactions. Emphasis was placed on nonpoint source pesticide runoff from agricultural areas, which had resulted from record rainfall that occurred during the period of increased mortality.Analytical results from sediment, water, and biota indicated that biotoxins, trace metals, and industrial chemical contamination were not likely causative factors in this mortality event. Elevated concentrations of pesticides (atrazine and aldicarb) were detected in surface water samples from bays within the region, and bay salinities were reduced to 〈10 ppt from December 1991 through April 1992 due to record rainfall and freshwater runoff exceeding any levels since 1939. Prolonged exposure to low salinity could have played a significant role in the unusual mortalities because low salinity exposure may cause disruption of the permeability barrier in dolphin skin. The lack of established toxicity data for marine mammals, particularly dermal absorption and bioaccumulation, precludes accurate toxicological interpretation of results beyond a simple comparison to terrestrial mammalian models. Results clearly indicated that significant periods of agricultural runoff and accompanying low salinities co-occurred with the unusual mortality event in Texas, but no definitive cause of the mortalities was determined. (PDF file contains 25 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 68
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    Population characteristics of gulf menhaden, Brevoortia patronus (2021)
    NOAA/National Marine Fisheries Service | Seattle, WA
    In:  http://aquaticcommons.org/id/eprint/2520 | 403 | 2011-09-29 19:00:33 | 2520 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: The status of the Gulf menhaden, Brevoortia patronus, fishery was assessed with purse-seine landings data from 1946 to 1997 and port sampling data from 1964 to 1997. These data were analyzed to determine growth rates, biological reference points for fi shing mortality from yield per recruit and maximum spawning potential analyses, spawner-recruit relationships, and maximum sustainable yield (MSY). The separable virtual population approach was used for the period 1976–97 (augmented by earlier analyses for 1964–75) to obtain point estimates of stock size, recruits to age 1, spawning stock size, and fishing mortality rates. Exploitation rates for age-1 fi sh ranged between 11% and 45%, for age-2 fi sh between 32% and 72%, and for age-3 fi sh between 32% and 76%. Biological reference points from yield per recruit (F0.1: 1.5–2.5/yr)and spawning potential ratio (F20: 1.3–1.9/yr and F30: 0.8–1.2/yr) were obtained for comparison with recent estimates of F (0.6–0.8/yr). Recent spawning stock estimates (as biomass or eggs) are above the long-term average, while recent recruits to age 1 are comparable to the long-termaverage. Parameters from Ricker-type spawner-recruit relations were estimated, although considerableunexplained variability remained. Recent survival to age-1 recruitment has generally been below that expected based on the Ricker spawner-recruit relation. Estimates of long-termMSY from PRODFIT and ASPIC estimation of production model ranged between 717,000 t and 753,000 t, respectively. Declines in landings between 1988 and 1992 raised concerns about the status of the Gulf menhaden stock. Landings have fl uctuated without trend since 1992, averaging about 571,000 t. However, Gulf menhaden are short lived and highly fecund. Thus, variation in recruitment to age 1, largely mediated by environmental conditions, infl uences fi shing success over the next two years (as age-1 and age-2 fi sh). Comparisons of recent estimates of fi shingmortality to biological reference points do not suggest overfishing. (PDF file contains 22 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 69
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    Guide to the Identification of Larval and Early Juvenile Poachers (Scorpaeniformes: Agonidae) from the Northeastern Pacific Ocean and Bering Sea (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2678 | 403 | 2011-09-29 18:36:58 | 2678 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: Developmental stages of 22 species representing 16 genera of agonid fishes occurring in the northeastern Pacific Ocean from San Francisco Bay to the Arctic Ocean are presented. Three of these species also occur in the North Atlantic Ocean. Larval stages of nine species are described for the first time. Additional information or illustrations intended to augment original descriptions are provided for eight species. Information on five other species is provided from the literature for comparative purposes.The primary objective of this guide is to present taxonomic characters to help identify the early life history stages of agonid fishes in field collections. Meristic, morphometric, osteological, and pigmentation characters are used to identify agonid larvae. Meristic features include numbers of median-fin elements, pectoral-fin rays, dermal plates, and vertebrae. Eye diameter, body depth at the pectoral-fin origin, snout to first dorsal-fin length, and pectoral-fin length are the most useful morphological characters. Presence, absence, numbers, and/or patterns of dermal plates in lateral rows or on the ventral surfaceof the gut are also useful. Other important characters are the presence, absence, numbers, and ornamentation of larval head spines. Lastly, distinct pigmentation patterns are often diagnostic. The potential utility of larval characters in phylogenetic analysis of the family Agonidae is discussed. (PDF file contains 92 pages.)
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  • 70
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    Stock Composition of Some Sockeye Salmon, Oncorhynchus nerka, Catches in Southeast Alaska, Based on Incidence of Allozyme Variants, Freshwater Ages, and a Brain-Tissue Parasite (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2683 | 403 | 2011-09-29 18:36:05 | 2683 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: The incidence of four discrete characters of individual sockeye salmon -two genetically inherited proteins (PGM-1*and PGM-2*), freshwater age at migration, and the presenceof the brain-tissue parasite Myxobolus arcticus-in weekly samples from two Alaskan fisheries (Noyes Island in 1986 and Sumner Strait in 1987) were used to infer stockcomposition of the catches based on corresponding character samples from 73 Alaskan and Canadian stocks. Estimated contributions of 13 stock groups, formed on the basis ofcharacter similarity of their members, were roughly consistent with expectations from tagging experiments, knowledge of stock magnitudes, and similar assessments from scales. Imprecision of the estimated contributions by the 13 stock groups limited their practical value; but variability was much reduced for combined estimated contributions by two inclusive categories, namely stock groups whose members had either high or low brainparasiteprevalence. Noyes Island catches consisted predominantly of unparasitized fish, most of which were probably of Canadian origin. The majority of Sumner Strait catches consisted of parasitized fish, whose freshwater origins may have been in Alaska or Canada. (PDF file contains 27 pages.)
    Keywords: Management ; Fisheries
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  • 71
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    Marine Flora and Fauna of the eastern United States: Acanthocephala (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2680 | 403 | 2011-09-29 18:34:45 | 2680 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: The phylum Acanthocephala (intestinal worm parasites of vertebrates) of the Atlantic coast of the United States comprises 43 species and 20 genera belonging to three orders: Echinorhynchida, Neoechinorhynchida, and Polymorphida. Adults are exclusively intestinal parasites of vertebrates. This study includes those species found in vertebrates of marine and estuarine environments along the North American Atlantic coast between Maine and Texas. Species that can be found within that geographical range and those that typically infect freshwater fishes but that are occasionally present in marine or estuarine hosts arealso included. The taxonamy, anatomy, natural history, and ecology of the phylum Acanthocephala are discussed, and an illustrated key to the genera is presented. Techniques, anannotated systematic treatment of all 43 species, and a systematic index are included. No systematic decisions will be made at this time, but areas where such decisions are pending will be indicated and discussed for future reports. (PDF file contains 32 pages.)
    Keywords: Ecology ; Fisheries
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  • 72
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    A Photographic Catalog of Killer Whales, Orcinus orca, frOIll the Central Gulf of Alaska to the Southeastern Bering Sea (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2684 | 403 | 2011-09-29 18:36:02 | 2684 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: In 1992 and 1993, researchers from the National Marine Mammal Laboratory initiated photo-identification studies on Alaskan killer whales, Orcinus orca. Waters from KodiakIsland west to the central and eastern Aleutian Islands and southeastern Bering Sea were surveyed. A total of 289 individual whales were identified. A photographic record of the whales encountered during these surveys is presented. When photographs of the 289 individual whales were compared among various regions in Alaska (Prince William Soundand Southeast Alaska) and areas outside Alaska (British Columbia, Washington, and California), 11 matches were found. The count is conservative because the 1992 and 1993surveys were limited in geographical range, restricted to summer periods, and whales may have been missed along the survey trackline. Future research incorporating both photoidentification studies and line transect surveys will provide reliable abundance estimates of Alaskan killer whales. (PDF file contains 58 pages.)
    Keywords: Conservation ; Management ; Fisheries
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  • 73
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    Ichthyoplankton Adjacent to Live-Bottom Habitats in Onslow Bay, North Carolina (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2682 | 403 | 2011-09-29 18:36:31 | 2682 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: The abundance and distribution of ichthyoplankton adjacent to live-bottom habitats (rock outcroppings containing rich, sessile invertebrate communities and many species oftropical and subtropical fishes) in open-shelf waters « 55-m isobath) in Onslow Bay, North Carolina, were investigated. Larvae of reef-associated genera, especially the economically important subtropical and tropical members of the families Haemulidae (Haemulon), Lutjanidae (Lutjanus and Rltomboplites), Serranidae (Mycteroperca and Epinephelus), and Sparidae (Calamus and Pagrus) were targeted. Larvae representing 40 families were collected in neuston tows. Commonly collected reef-associated families were Balistidae, Blenniidae (dominated by the reef-associated Parablennius marmoreus) , Mullidae, and Gobiidae. Larvae representing 70 families werecollected in subsurface tows. Reef-associated families commonly collected included Apogonidae, Balistidae, Gobiidae, Haemulidae, LutJanidae, Scaridae, and Serranidae. Larval Haemulon sp (p)., Lutjanus sp(p)., and Rltomboplites aurorubens were commonly collected and thus it is likely that these taxa spawn in Onslow Bay and recruit to live-bottom sites within the area. Other families of fishes commonly collected but generally not considered reef-associated included Bothidae, Callionymidae, Carangidae, Clupeidae, Engraulidae, and Ophidiidae. Estuarine-dependent species (e.g. the clupeid Brevoortia tyrannus and the sciaenids Leiostomus xanthurus and Micropogonias undulatus) were an important component of the ichthyoplankton during late fall and winter. The frequent occurrence of larvae fromoceanic species (e.g. gonostomatids and myctophids) indicated that Gulf Stream waters had intruded onto the shelf, transporting these larvae to open-shelf waters off North Carolina.(PDF file containes 36 pages.)
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  • 74
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    The History, Present Condition, and Future of the Molluscan Fisheries of North and Central America and Europe: Volume 3, Europe (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2686 | 403 | 2011-09-29 18:36:00 | 2686 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: (PDF file contains 248 pages.)
    Keywords: Ecology ; Fisheries
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  • 75
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    Biology and Management of Sablefish, Anoplopoma fimbria: Papers from the International Symposium on the Biology and Management of Sablefish, Seattle, Washington, 13-15 April 1993 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2685 | 403 | 2011-09-29 18:35:51 | 2685 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: At its june 1990 annual meeting, the Technical Subcommittee(TSC) of the Canada-U.S. Groundfish Committee recommended that scientists and managers working on sablefish, Anoplopoma fimbria, issues convene to present and discuss the results of their recent research. Thorough knowledge of the biology and population dynamics of this species is essential for its effective management, especially considering its commercial importance. TSC representatives from both countries recognized that a great deal ofactive research has been conducted on this species since the International Sablefish Symposium was held in Anchorage, Alaska, in March 1983 (Melteff, 1983). As a result of this recommendation, the International Symposium on the Biology and Management of Sablefish (ISBMS) was convened April 13-15, 1993, at the Alaska Fisheries Science Center in Seattle, Washington. (PDF file contains 286 pages.)
    Keywords: Conservation ; Management ; Fisheries
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  • 76
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    The History, Present Condition, and Future of the Molluscan Fisheries of North and Central America and Europe: Volume 2, Pacific Coast and Supplemental Topics (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2687 | 403 | 2020-08-23 23:57:43 | 2687 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: Over 100 molluscan species are landed in Mexico. About 30% are harvested on the Pacific coast and 70% on the Atlantic coast. Clams, scallops, and squid predominate on thePacific coast (abalone, limpets, and mussels are landed there exclusively). Conchs and oysters predominate on the Atlantic coast. In 1988, some 95,000 metric tons (t) of mollusks were landed, with a value of $33 million. Mollusks were used extensively in prehispanic Mexico as food, tools, and jewelry. Their use as food and jewelry continues. Except in the States of Baja California and Baja California Sur, where abalone, clams, and scallops provide fishermen with year-round employment, mollusk fishing is done part time. On both the Pacific and Atlantic coasts, many fishermen are nomads, harvesting mollusks wherever theyfind abundant stocks. Upon finding such beds, they build camps, begin harvesting, and continue until the mollusks become so scarce that it no longer pays to continue. They then look for productive beds in other areas and rebuild their camps. Fishermen harvest abalones, mussels, scallops, and clams by free-diving and using scuba and hooka. Landings of clams and cockles have been growing, and 22,000 t were landed in 1988. Fishermen harvest intertidal clams by hand at wading depths, finding them with their feet. In waters up to 5 m, they harvest them by free-diving. In deeper water, they use scuba and hooka. Many species ofgastropods have commercial importance on both coasts. All species with a large detachable muscle are sold as scallops. On the Pacific coast, hatchery culture of oysters prevails. Oyster culture in Atlantic coast lagoons began in the 1950's, when beds were enhanced by spreading shells as cultch for spat. (PDF file contains 228 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 77
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    The History, Present Condition, and Future of the Molluscan Fisheries of North and Central American and Europe: Volume 1, Atlantic and Gulf Coasts (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2688 | 403 | 2011-09-29 18:35:15 | 2688 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: This three-volume monograph represents the first majorattempt in over a century to provide, on regional bases, broad surveys of the history, present condition, and future of the important shellfisheries of North and Central America and Europe. It was about 100 years ago that Ernest Ingersoll wrote extensively about several molluscan fisheries of North America (1881, 1887) and about 100 years ago that Bashford Dean wrote comprehensively about methods of oyster culture in Europe (1893). Since those were published, several reports, books, and pamphlets have been written about the biology and management of individual species or groups ofclosely related mollusk species (Galtsoff, 1964; Korringa, 1976 a, b, c; Lutz, 1980; Manzi and Castagna, 1989; Shumway, 1991). However, nothing has been written during the past century that is comparable tothe approach used by Ingersoll in describing the molluscanfisheries as they existed in his day in North America or, for that matter, in Europe. (PDF file contains 224 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 78
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    Ecology of Juvenile Walleye Pollock, Theragra chalcogramma: Papers from the workshop "The Importance of Prerecruit Walleye Pollock to the Bering Sea and North Pacific Ecosystems" Seattle, Washington, 28-30 October 1993 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2689 | 403 | 2011-09-29 18:35:26 | 2689 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The Alaska Fisheries Science Center (AFSC), NationalMarine Fisheries Service (NMFS), hosted an internationalworkshop, 'The Importance of Prerecruit Walleye Pollock to the Bering Sea and North Pacific Ecosystems," from 28 to 30 October 1993. This workshop was held in conjunction with the annual International North Pacific Marine Science Organization (PICES) meeting held in Seattle. Nearly 100 representatives from government agencies, universities, and the fishing industry in Canada, Japan, the People's Republic of China, Russia, and the United States took part in the workshop to review and discuss current knowledge on juvenile pollock from the postlarval period to the time they recruit to the fisheries. In addition to its importance to humans as a major commercial species, pollock also serves as a major forage species for many marine fishes, birds, and mammals in the North Pacific region.(PDF file contains 236 pages.)
    Keywords: Ecology ; Management ; Fisheries
    Repository Name: AquaDocs
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  • 79
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    Population Characteristics of Gulf Menhaden, Brevoortia patronus (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2690 | 403 | 2011-09-29 18:34:33 | 2690 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The status of the gulf menhaden, Brevoortia patronus, fishery was assessed with purseseine landing data from 1946 to 1992 and port sampling data from 1964 to 1992. These datawere analyzed to determine growth rates, biological reference points for fishing mortality from yield per recruit and maximum spawning potential analyses, spawner-recruit relationships, and maximum sustainable yield (MSY). Virtual population approaches were used to obtain point estimates of stock size, recruits to age I, spawning stock size, and fishing mortality rates. Exploitation rates ranged between 14% and 45% for age-1 fish, between30% and 72% for age-2 fish, and between 36% and 71% for age-3 fish. Biological reference points from yield per recruit (FO. I: 0.7-0.9 yr-1) and maximum spawning potential (F20: 1.62.9 yr-l and F30: 1.0-2.1 yr-1) were obtained for comparison with recent estimates of F (0.4-0.8 yr-l). Parameters from Ricker-type spawner-recruit relations were estimated, although considerable unexplained variability remained. Estimates of long-term MSY from fits of thegeneralized production model ranged between 664,000 metric tons (t) and 897,000 t. Declines in landings since 1988 have raised concerns about the status of the gulf menhadenstock. However, gulf menhaden are short lived and highly fecund. Thus, variation in recruitment to age 1 largely mediated by environmental conditions influences fishingsuccess over the next two years (as age-1 and age-2 fish). Comparisons of recent estimates of fishing mortality to biological reference points do not suggest overfishing. (PDF file contains 26 pages.)
    Keywords: Management ; Ecology ; Fisheries
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  • 80
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    The Summer Flounder, Scup, and Black Sea Bass Fishery of the Middle Atlantic Bight and Southern New England Waters (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2693 | 403 | 2011-09-29 18:34:08 | 2693 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: Summer flounder, Paralichthys dentatus, scup, Stenotomus chrysops, and black sea bass, Centropristis striata, cooccur within the Middle Atlantic Bight and off southern New England and are important components of commercial and recreational fisheries. The commercial otter trawl fishery for these species is primarily a winter fishery, whereas the recreational fishery takes place between late spring and autumn. The otter trawl fishery generally targetssummer flounder, and less frequently scup, while black sea bass occurs as bycatch. Trips in which all three species were present yielded highest aggregate landings per unit of effort (LPUE) levels and occurred more often than trips landing only one or two species. More than 50% of the trips in the trawl fishery landed at least two of the three species. In contrast, greater than 75% of the recreational landings of each species occurred as a result of tripslanding only one species. Differences in the fisheries resulted from the interactions of seasonal changes in species distributions and gear selectivity. (PDF file contains 18 pages.)
    Keywords: Management ; Fisheries
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  • 81
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    Marine Flora and Fauna of the Eastern United States: Platyhelminthes: Monogenea (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2694 | 403 | 2011-09-29 18:34:25 | 2694 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: (PDF file contains 112 pages.)
    Keywords: Ecology ; Fisheries
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  • 82
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    Stocks of Dolphins (Stenella spp. and Delphinus delphis) in the Eastern Tropical Pacific: A Phylogeographic Classification (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2696 | 403 | 2011-09-29 18:34:00 | 2696 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: Current information is reviewed that provides clues to the intraspecific structure of dolphin species incidently killed in the yellowfin tuna purse-seine fishery of the eastern tropical Pacific (ETP). Current law requires that management efforts are focused on the intraspecific level, attempting to preserve local and presumably locally adapted populations. Four species are reviewed: pantropical spotted, Stenella attenuata; spinner, S. longirostTis;striped, S. coeruleoalba; and common, Delphinus delphis, dolphins. For each species, distributional, demographic, phenotypic, and genotypic data are summarized, and theputative stocks are categorized based on four hierarchal phylogeographic criteria relative to their probability of being evolutionarily significant units. For spotted dolphins, the morphological similarity of animals from the south and the west argues that stock designations (and boundaries) be changed from the current northernoffshore and southern offshore to northeastern offshore and a combined western and southern offshore. For the striped dolphin, we find little reason to continue the presentdivision into geographical stocks. For common dolphins, we reiterate an earlier recommendation that the long-beaked form (Baja neritic) and the northern short-beaked form bemanaged separately; recent morphological and genetic work provides evidence that they are probably separate species. Finally, we note that the stock structure of ETP spinnerdolphins is complex, with the whitebelly form exhibiting characteristics of a hybrid swarm between the eastern and pantropical subspecies. There is little morphological basis at present for division of the whitebelly spinner dolphin into northern and southern stocks. However, we recommend continued separate management of the pooled whitebelly forms, despite their hybrid/intergrade status. Steps should be taken to ensure that management practices do not reduce the abundance of eastern relative to whitebelly spinner dolphins. To do so may lead to increased invasion of the eastern's stock range and possible replacement of the eastern spinner dolphin genome.(PDF file contains 24 pages.)
    Keywords: Conservation ; Management ; Fisheries ; pantropical spotted ; Stenella attenuata ; spinner ; Stenella longirostTis ; striped ; Stenella coeruleoalba ; and common ; Delphinus delphis ; dolphins
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  • 83
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    Conservation Biology of Elasmobranchs (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2700 | 403 | 2011-09-29 18:29:26 | 2700 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: Elasmobranchs are vital and valuable components of themarine biota. From an ecological perspective they occupythe role of top predators within marine food webs, providinga regulatory control that helps balance the ecosystem.From an evolutionary perspective, this group represents anearly divergence along the vertebrate line that producedmany unusual, but highly successful, adaptations in functionand form.From man's perspective, elasmobranchs have been consideredboth an unavoidable nuisance, and an exploitable fishery resource. A few of the large shark species have earned a dubious notoriety because of sporadic attacks on humans that occur in coastal areas each year worldwide; thehysteria surrounding an encounter with a shark can becostly to the tourist industry. More importantly, elasmobranchs are often considered a detriment to commercialfishing operations; they cause significant economic damageto catches and fishing gear. On the other hand, consumerattitudes have changed concerning many previouslyunpopular food fishes, including elasmobranchs, and thisgroup of fishes has been increasingly used by both recreational and commercial fishing interests. Many elasmobranchs have become a popular target of recreational fishermen for food and sport because of their abundance, size, and availability in coastal waters. Similarly, commercial fisheries for elasmobranchs have developed or expanded from an increased demand for elasmobranch food products. (PDF file contains 108 pages.)
    Keywords: Conservation ; Fisheries ; Biology
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  • 84
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    Control of Disease in Aquaculture: Proceedings of the Nineteenth U.S.-Japan Meeting on Aquaculture, Ise, Mie Prefecture, Japan, 29-30 October 1990, Satellite Symposium: 2 November (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2704 | 403 | 2011-09-29 18:30:13 | 2704 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The United States and Japanese counterpart panels on aquaculture were formed in 1969 under the United States-Japan Cooperative Program in Natural Resources (UJNR). The panels currently include specialists drawn from the federal departments most concerned with aquaculture. Chargedwith exploring and developing bilateral cooperation, the panels have focused their efforts on exchanginginformation related to aquaculture which could be of benefit to both countries.The UJNR was begun during the Third Cabinet-Level Meeting of the Joint United States-Japan Committee on Trade and Economic Affairs in January 1964, In addition to aquaculture, current subjects in the program include desalination of seawater, toxic microorganisms, air pollution, energy, forage crops, national park management, mycoplasmosis, wind and seismic effects, protein resources,forestry, and several joint panels and committees in marine resources research, development, and utilization.Accomplishments include increased communication and cooperation among technical specialists; exchanges of information, data, and research findings; annual meetings of the panels, a policy-coordinative body; administrative staff meetings; exchanges of equipment, materials, and samples; several major technical conferences; and beneficial effects on international relations. (PDF file contains 150 pages.)
    Keywords: Management ; Fisheries ; Aquaculture
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  • 85
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    Description of Early Larvae of Four Northern California Species of Rockfishes (Scorpaenidae: Sebastes) from Rearing Studies (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2699 | 403 | 2011-09-29 18:29:21 | 2699 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: About 72 species of Sebastes (Family Scorpaenidae) are found along the eastern Pacific coast of North America, some of which are heavily exploited by both commercial andsport fisheries. Because of the large number of species, the identification of early life stages has progressed slowly. The objectives of this study were 1) to rear the larvae of four species of rockfish (Sebastes mystinus, S. carnatus, S. atrovirens, and S. rastrelliger); and2) to describe the larvae using morphometric measurements, pigmentation patterns, and head spination.Pigmentation was the most useful feature for identification purposes. Two general patterns were found: 1) a short row of ventral midline melanophores on the tail, and none or very little postero-dorsal pigmentation (S. mystinus); and 2) complete ventral midline pigmentation on the tail, and anterior and postero-dorsal melanophores (S. carnatus, S. atrovirens, and S. rastrelliger). With the exception of very early stages of S. carnatus and S. atrovirens, these species can be readily identified. Morphometric proportionsand head spination did not show major differences among species.Because of the great similarities found among species in this genus, descriptions from field studies are uncertain to some extent. Laboratory rearings, although difficult, canat least provide early larvae from known species which allow precise identification as well as an estimation ofvariability of characters (e.g., pigmentation) within and between broods.(PDF file contains 22 pages.)
    Keywords: Ecology ; Fisheries
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  • 86
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    Pictorial Guide to the Groupers (Teleostei: Serranidae) of the Western North Atlantic (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2697 | 403 | 2011-09-29 18:34:04 | 2697 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: This guide was developed to assist with the identification of western North Atlantic grouper species of the genera Alphestes, Cephalopholis, Dermatolepis, Epinephelus,Gonioplectrus, Mycteroperca, and Paranthias. The primary purpose for assembling the guide is for use with projects that deploy underwater video camera systems. The mostvital source of information used to develop the guide was an archive of underwater video footage recorded during fishery projects. These video tapes contain 348 hours ofsurvey activity and are maintained at the National Marine Fisheries Service (NMFS), Pascagoula, Mississippi. This footage spans several years (1980-92) and was recordedunder a wide variety of conditions depicting diverse habitats from areas of the western North Atlantic Ocean, Caribbean Sea, and Gulf of Mexico. Published references wereused as sources of information for those species not recorded on video footage during NMFS projects. These references were also used to augment information collected from video footage to provide broader and more complete descriptions. The pictorial guide presents information for all 25 grouper species reported to occur in the western North Atlantic. Species accounts provide descriptive text and illustrations depicting documented phases for the various groupers. In addition, species separation sheets based on important identification features were constructed to further assist with species identification. A meristic table provides information for specimens captured in conjunction with videoassisted fishery surveys. A computerized version enables guide users to amend, revise,update, or customize the guide as new observations and information become available. (PDF file contains 52 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 87
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    Larval Fish Recruitment and Research in the Americas: Proceedings of the Thirteenth Annual Larval Fish Conference Merida, Mexico, 21-26 May 1989 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2720 | 403 | 2011-09-29 18:32:12 | 2720 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: The 13th Annual Larval Fish Conference and Annual Meeting of the American Fisheries Society Early Life History Section cohosted by Mote Marine Laboratory, United States, and the Instituto Nacional de la Pesca, Mexico, were held 21-26 May 1989, in Merida, Yucatan, Mexico. The purpose of holding the meeting in Mexico was to encourage the participation of our Latin American and Caribbean colleagues and to provide a forum for the exchange of ideas and information among researchers working in the Americas. More than 150 participants represented 24 U.S. states, the District of Columbia, and 13 foreign countries including Mexico, Canada, Puerto Rico, Costa Rico, Panama, Cuba, Columbia, Chile, Peru, Brazil, Argentina, South Africa, and West Germany. The Conference began with registration and a social inthe courtyard patio of the Merida Holiday Inn. Fresh redgrouper, the most important commercial finfish species ofthe State of Yucatan, was prepared and served by the hotelstaff, courtesy of CPI, Itzamex, and the Terramar TradingCompany. (PDF file contains 146 pages.)
    Keywords: Ecology ; Fisheries
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  • 88
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    Marine Flora and Fauna of the Eastern United States: Copepoda, Cyclopoida: Archinotodelphyidae, Notodelphyidae, and Ascidicolidae (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2719 | 403 | 2011-09-29 18:32:06 | 2719 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: This manual includes an introduction to the general biology, a selected bibliography, and an illustrated key to 11 genera and 17 species of copepods of the Crustacea, Subclass Copepoda, Order Cyclopoida, Families Archinotodelphyidae, Notodelphyidae and Ascidicolidae, associated with ascidians from the Atlantic Coast of the United States. Species distributed from the Gulf of Maine to Long Island Sound are emphasized. An annotated systematic list, with statements of the world distribution and new records of association with hosts, and a systematic index are also provided. (PDF file contains 44 pages.)
    Keywords: Ecology ; Fisheries ; Biology
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  • 89
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    Genetics in Aquaculture: Proceedings of the Sixteenth U.S.-Japan Meeting on Aquaculture Charleston, South Carolina October 20 and 21, 1987 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2723 | 403 | 2011-09-29 18:32:42 | 2723 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-26
    Description: The United States and Japanese counterpart panels on aquaculture were formed in 1969 under the United States-Japan Cooperative Program in Natural Resources (UJNR). The panels currently include specialists drawn from the federal departments most concerned with aquaculture. Charged with exploring and developing bilateral cooperation, the panels have focused their efforts on exchanging information related to aquaculture which could be of benefitto both countries.The UJNR was begun during the Third Cabinet-Level Meeting of the Joint United States-Japan Committee on Trade and Economic Affairs in January 1964. In addition to aquaculture, current subjects in the program include desalination of seawater, toxic microorganisms, air pollution, energy, forage crops, national park management, mycoplasmosis, wind and seismic effects, protein resources, forestry, and several joint panels and committees in marineresources research, development, and utilization.Accomplishments include: Increased communication and cooperation among technical specialists; exchanges of information, data, and research findings; annual meetings of the panels, a policy-coordinative body; administrative staff meetings; exchanges of equipment, materials, and samples; several major technical conferences; and beneficial effects on international relations. (PDF file contains 88 pages.)
    Keywords: Management ; Fisheries ; Aquaculture
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  • 90
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    Distribution and Abundance of Juvenile Salmonids off Oregon and Washington, 1981-1985 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2722 | 403 | 2011-09-29 18:32:32 | 2722 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-26
    Description: This report is a summary of the results of 883 purse seine sets made for juvenile salmonids during 15 cruises off the coasts of Oregon and Washington during the springs and summers of 1981-1985. Juvenile coho salmon (Oncorhynchus kisutch) occurred most frequently, followed by chinook salmon (0. tshawytscha). The juveniles of these two species co-occurred more frequently than expected. Juvenile chum, pink and sockeye salmon (0. keta, O. gorbuscha, and O. nerka), steelhead (0. mykiss) and cutthroat trout (0. clarki clarki) were caught much less frequently and in lower numbers than coho or chinook salmon. We found no evidence of large schools ofjuvenile salmonids. A northerly movement of juvenile coho salmon wa~ suggested by decreased catches off Oregon and increased catches off Washington between early and late summer. Highest catch per set of juvenile coho salmon was usually found inshore of 37.2 km. Juvenile chinook salmon were usually found within 27.9 km of the coast. Juvenile salmonids were found over a broadrange of surface salinities and temperatures. High catches of juvenile coho salmon occurred in both the low salinity waters of the Columbia River plume and in adjacent higher salinity waters. Preferences for specific salinities or temperatures were not obvious for any species, although catch rates of juvenile coho salmon were highest in years when chlorophyll content was also high. Based on expansions of fish with coded wire tags, we estimated that hatchery coho salmon smolts comprised 74%, on average, of the juvenile coho salmon catches. The remaining 26% were presumably wild fish or hatchery fish released as fingerlings. Hatchery coho salmon were caught roughlyin proportion to the numbers released. However, hatchery fish from the Columbia River and private coastal facilities were caught at slightly higher rates while those from coastal Washington and public coastal Oregon hatcheries were caught at slightly lower rates than expected from thenumbers released. No juvenile coho salmon with coded wire tags were caught that had originated from either California or Puget Sound hatcheries. (PDF file contains 88 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 91
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    Marine Flora and Fauna of the Northeastern United States Echinodermata: Crinoidea (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2724 | 403 | 2011-09-29 18:32:46 | 2724 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-26
    Description: The crinoid fauna of the continental margin (0-1500 m) of northeastern North America (Georgia to Canada) includes 14 species in 13 genera and 5 families. We introduce the external morphology and natural history of crinoids and include a glossary of terms, an illustrated key to local taxa, annotated systematic list, and an index. The fauna includes 2 species found no further south than New England and 8 that occur no further north than the Carolinas and Blake Plateau. Comactinia meridionalis (Agassiz) is the only species commonly found in shallow water «50 m). Notaxa are endemic to the area. (PDF file contains 34 pages.)
    Keywords: Ecology ; Fisheries
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  • 92
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    Incidental Catch of Marine Mammals by Foreign and Joint Venture Trawl Vessels in the U.S. EEZ of the North Pacific, 1973-88 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2711 | 403 | 2011-09-29 18:30:52 | 2711 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: During 1973-88, 3,661 marine mammals of 17 species were reported as incidental catch by U.S. fishery observers aboard foreign and joint venture trawl vessels in the U.S.Exclusive Economic Zone in the North Pacific Ocean and the Bering Sea. Northern sea lions (Eumetopias jubatus) accounted for 90% of the reported incidental mortality in the Gulf of Alaska and eastern Bering Sea. Nearly half of these sea lions were taken in trawl nets in the Shelikof Strait, Alaska, joint venture fishery during 1982-84. However, high incidental mortality rates (〉25 sea lions per 10,000 metric tons of groundfish catch) also occurred in the foreign fisheries near Kodiak Island and in the Aleutian Islands area in earlier years. Estimated annual mortality of incidentally caught northern sea lions inAlaska declined from 1,000 to 2,000 animals per year during the early 1970s and 1982 to fewer than 100 animals in 1988. In the Bering Sea most sea lions incidentally caught weremales, while in the Gulf of Alaska females were more frequently caught. Females may also have been dominant in the incidental catch of sea lions in the Aleutian Islands area, but age and sex composition data are limited. Incidental mortality of adult female sea lions by foreign trawl fisheries in these areas could have partially contributed to the reported declines in northern sea lion populations in Alaska during the 1970s, but it cannot aloneaccount for the present decline in population size. (PDF file contains 64 pages.)
    Keywords: Management ; Fisheries
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  • 93
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    Elasmobranchs as living resources: Advances in the biology, ecology, systematics, and the status of the fisheries (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2725 | 403 | 2011-09-29 18:36:51 | 2725 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: This report owes its genesis to the foresight and enthusiamof Dr. Kazuhiro Mizue. By happy circumstance, Professor Mizue contacted me in 1983 with his visionary ideas on cooperative programs. He noted that the time was right because the Japan Society for the Promotion of Science and the National Science Foundation had mutually given priority to cooperative programs in marine biology.I therefore agreed to act as the U.S. coordinator and proposed to NSF, a short trip to Japan to negotiate site visits and timing with ten previously appointed Japanese scientists and, if that trip were successful, to negotiate a joint research project, possibly followed by a joint seminar. (PDF file contains 528 pages.)
    Keywords: Ecology ; Fisheries ; Biology
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  • 94
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    Life history aspects of 19 rockfish species (Scorpaenidae: Sebastes) from the Southern California Bight (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2734 | 403 | 2011-09-29 18:33:23 | 2734 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The authors investigated various life history aspects of 19rockfish species (Sebastes chlorostictus, S. constellatus, S. dalli, S. elongatus, S. ensifer, S. entomelas, S. flavidus, S. goodei, S. hopkinsi, S. levis, S. melanostomus, S. miniatus, S. ovalis, S. paucispinis, S. rosaceus, S. rosenblatti, S. rufus, s. saxicola, S. semicinctus) from the southern California Bight. These aspects included depth distribution, age-length relationships (of 7 species), length-weight relationships, size at first maturity, spawning season, and fecundity. Growth rates of female S. elongatus, S. hopkinsi, S. ova/is, S. saxicola, and S. semicinctus were higherthan male conspecifics. Multiple spawning per season was found in 12 species. Generally, most species spawned between late winter and early summer, though there was some spawning within the genus throughout the year. Spawning season duration ranged from 2 (S. flavidus) to 10 months (S. paucispinis). Spawning seasons tended to start earlier in the year and be of longer duration in the southern California Bight, compared to published data on central California conspecifics. Males matured at a smaller length in 7 of the 17 species studied. Maximum fecundities ranged from 18,000 (S. dalll) to about 2,680,000 (S. levis). (PDF file contains 44 pages.)
    Keywords: Ecology ; Management ; Fisheries
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  • 95
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    Early-life-history profiles, seasonal abundance, and distribution of four species of Carangid larvae off Louisiana, 1982 and 1983 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2732 | 403 | 2011-09-29 18:33:16 | 2732 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: We present data on ichthyoplankton distribution, abundance,and seasonality and supporting environmental information forfour species of coastal pelagics from the family Carangidae: blue runner Caranx crysos, Atlantic bumper Chloroscombrus chrysurus, round scad Decapterus punctatus, and rough scad Trachurus lathami. Data are from 1982 and 1983 cruises off Louisiana sponsored by the Southeastern Area Monitoring and Assessment Program (SEAMAP). Bioprofiles on reproductive biology, early life history, meristics, adult distribution, and fisheries characteristics are also presented for these species.Maximum abundances of larval blue runner, Atlantic bumper, and round scad were found in July inside the 4O-m isobath, although during the rest of the cruises these species wererarely found together. Larval Atlantic bumper were capturedin June and July only; blue runner in May, June, and July; and round scad in all seasons. Atlantic bumper larvae, concentrated mostly off western Louisiana, were by far the most abundant carangid in 1982 and 1983. Larval blue runner were the second most abundant summer-spawned carangid in 1982 and 1983, but their abundance and depth distribution varied considerably between years. Relative abundance of larval round scad off Louisiana was low, and they were captured only west of the Mississippi River delta, although they are reported to dominate carangid populations in the eastern Gulf of Mexico. Rough scad were primarily winter/spring and outer-shelf (40-182 m) spawners. They ranked third in overall abundance, but were the most abundant target carangid on the outer shelf. Ecologicalparameters such as surface salinity, temperature, and station depth are presented from capture sites for recently hatched larvae 〈2.5 mm notochord length, except round scad) as well as for all sizes of fish below 14 mm standard length. (PDF file contains 44 pages.)
    Keywords: Ecology ; Management ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Benthic macrofauna and habitat monitoring on the Continental Shelf of the northeastern United States: I. Biomass (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2735 | 403 | 2011-09-29 18:33:26 | 2735 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: Information on long-term temporal variability of and trends in benthic community-structure variables, such as biomass, is needed to estimate the range of normal variability in comparison with the effects of environmental change or disturbance. Fishery resource distribution and population growth will be influenced by such variability. This study examines benthic macrofaunal biomass and related data collected annually between 1978 and 1985 at 27 sites on the continental shelf of the northwestern Atlantic, from North Carolina to the southern Gulf of Maine. The study was expanded at several sites with data from other studies collected at the same sites prior to 1978. Results indicatethat although there was interannual and seasonal variability, as expected, biomass levels over the study period showed few clear trends. Sites exhibiting trends were either in pollution-stressed coastal areas or influenced by the population dynamics of one or a few species, especially echinoderms. (PDF file contains 34 pages.)
    Keywords: Ecology ; Management ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Results of abundance surveys of juvenile Atlantic and gulf Menhaden, Brevoortia tyrannus and B. patronus (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2737 | 403 | 2011-09-29 18:33:34 | 2737 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The estuarine populations of juvenile Atlantic and gulf menhaden (Brevoortia tyrannus and B. patronus) were sampledduring two-boat, surface-trawl, abundance surveys extensively conducted in the 1970s. Juvenile Atlantic menhaden were sampled in 39 estuarine streams along the U.S. Atlantic coast from northern Florida into Massachusetts. Juvenile gulf menhaden were sampled in 29 estuarine streams along the Gulf of Mexico from southeast Texas into western Florida. A stratified, two-stage, cluster sampling design was used. Annual estimates of relative juvenile abundance for each species ofmenhaden were obtained from catch-effort data from thesurveys. There were no significant correlations, for eitherspecies, between the relative juvenile abundance estimates and fishery-dependent estimates of year-class strength. From 1972 to 1975, the relative abundance of juvenile Atlantic menhaden in north Atlantic estuaries decreased to near zero. (PDF file contains 22 pages.)
    Keywords: Management ; Fisheries ; Brevoortia tyrannus ; Brevoortia patronus ; Atlantic menhaden ; Gulf menhaden
    Repository Name: AquaDocs
    Type: monograph
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    Cephalopods from the stomachs of sperm whales taken off California (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2738 | 403 | 2011-09-29 18:22:55 | 2738 | United States National Marine Fisheries Service
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    Publication Date: 2021-06-27
    Description: Cephalopod remains (beaks, bodies, and parts of bodies) werecollected from the stomachs of 157 sperm whales (Physetermacrocephalus) taken off central California (lat. 37°-39°N). At least 24 species representing 14 families were identified. Frequencies of occurrence of the six most numerous taxa were Moroteuthis robusta 72.0%, Gonatopsis borealis 66.2%, Histioteuthis dofleini 36.9%, Galiteuthis spp. (including G. phyllura and G. pacifica) 36.3%, Octopoteuthis deletron 35.0%, and Vampyroteuthisinfernalis 27.4%. One find of two Mesonychoteuthishamiltoni beaks strongly suggests transequatorial migration by one large male sperm whale. (PDF file contains 18 pages.)
    Keywords: Management ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Laboratory guide to early life history stages of northeast Pacific fishes (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2741 | 403 | 2020-03-04 15:43:42 | 2741 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: This laboratory guide presents taxonomic information on eggsand larvae of fishes of the Northeast Pacific Ocean (north of California) and the eastern Bering Sea. Included are early-life-history series, illustrations, and comparative descriptions of 232 species expected to spawn here, out of a total 627 species known to occur in marine waters of this area. Meristic and general life-history data are included, as well as diagnostic characters to help identify eggs and larvae. Most of this information has been gleaned from literature, with the addition of 200 previously unpublished illustrations. (PDF file contains 654 pages.)
    Keywords: Ecology ; Fisheries ; Biology
    Repository Name: AquaDocs
    Type: monograph
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    Marine farming and enhancement: Proceedings of the Fifteenth U.S.-Japan Meeting on Aquaculture, Kyoto, Japan October 22-23, 1986 (2021)
    NOAA/National Marine Fisheries Service
    In:  http://aquaticcommons.org/id/eprint/2736 | 403 | 2011-09-29 18:33:32 | 2736 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: The United States and Japanese counterpart panels on aquaculture were formed in 1969 under the United States-Japan Cooperative Program in Natural Resources (UJNR). Thepanels currently include specialists drawn from the federal departments most concerned with aquaculture. Charged with exploring and developing bilateral cooperation, the panelshave focused their efforts on exchanging information related to aquaculture which could be of benefit to both countries.The UJNR was begun during the Third Cabinet-Level Meeting of the Joint United States-Japan Committee on Trade and Economic Affairs in January 1964. In addition to aquaculture, current subjects in the program include desalination of seawater, toxic microorganisms, air pollution, energy, forage crops, national park management, mycoplasmosis, wind and seismic effects, protein resources, forestry, and several joint panels and committees in marine resources research, development, and utilization.Accomplishments include: Increased communication and cooperation among technical specialists; exchanges of information, data, and research findings; annual meetings of the panels, a policy-coordinative body; administrative staff meetings; exchanges of equipment, materials, and samples; several major technical conferences; and beneficial effects on international relations. (PDF file contains 134 pages.)
    Keywords: Ecology ; Management ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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