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  • Fisheries  (199)
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  • Environment Agency
  • 1
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10969 | 1256 | 2013-03-26 13:54:54 | 10969 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-25
    Description: This is the Investigation of rising nitrate concentrations in groundwater in the Eden Valley, Cumbria report produced by the Environment Agency in 2003. This report focuses on groundwater nitrate concentrations in the Eden Valley. Most boreholes in the Eden Valley had nitrate concentrations less than 20 mg/l but a significant number had higher concentrations, some exceeding the EC maximum admissible concentration for drinking water of 50 mg/l. The main objectives of this report were to investigate the causes of rising nitrate concentrations in groundwater in the Permo-Triassic sandstone aquifers of the Eden Valley area and provide sufficient understanding of the groundwater and surface water flow system, including the sources of the nitrate contamination and the processes controlling nitrate movement, so that possible management options for reversing this trend can be considered.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cumbria ; Eden valley ; Rivers ; Aquifers ; Boreholes ; Freshwater pollution ; Water quality ; Nitrate concentrations ; Hydrology ; Modelling
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 86
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  • 2
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10984 | 1256 | 2013-03-26 13:51:12 | 10984 | Environment Agency, UK (Freshwater Biological Association)
    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 Manchester Mosslands cSAC, Astley and Bedford Moss, Holcroft Moss and Risley Moss.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 Manchester Mosslands cSAC, Astley and Bedford Moss, Holcroft Moss and Risley Moss 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 Manchester Mosslands cSAC, Astley and Bedford Moss, Holcroft Moss and Risley Moss 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 ; Manchester Mosslands cSAC ; Astley Moss ; Bedford Moss ; Holcroft Moss ; Risley Moss ; Habitats Directive ; SAC ; SPA ; Screening ; Assessment ; Impacts ; Waste management ; Discharge licences ; Abstraction licences ; Pollution prevention ; Pollution control
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 127
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  • 3
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10989 | 1256 | 2013-03-26 13:49:41 | 10989 | Environment Agency, UK (Freshwater Biological Association)
    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 Oak Mere cSAC.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 Oak Mere 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 Oak Mere 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 ; Oak Mere ; Habitats Directive ; SAC ; SPA ; Screening ; Assessment ; Impacts ; Waste management ; Discharge licences ; Abstraction licences ; Pollution prevention ; Pollution control
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 26
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  • 4
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10992 | 1256 | 2013-03-26 13:49:31 | 10992 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-25
    Description: This is a technical report of a hydrogeological assessment by the Environment Agency, an assessment to inform the Stage 3 review of Consents under the Habitats Directive for Wybunbury Moss, a National Nature Reserve and Special Area of Conservation in Cheshire. In the Stage 2 Review of Consents, one groundwater licence could not be clearly assessed as having no significant impact and so was taken forward to Stage 3. Further work has been carried out to refine the understanding of groundwater flow and the extent of the actual groundwater catchment of Wybunbury Moss, including three drilled boreholes, the monitoring of groundwater levels in the boreholes by data-loggers for more than 18 months and the sampling and analysis of the groundwater from the boreholes. Results of this further work are shown in Appendixes. From this work, a geological cross-section and Conceptual Model has been produced, and a map showing the revised understanding of the groundwater catchment of Wybunbury Moss. It also includes in Appendix I, the Stage 2 Review of Consents previously made.
    Description: Environment Agency Archives North West
    Description: +4appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Wybunbury Moss ; Habitats Directive ; Environmental assessment ; Impacts ; Groundwater abstraction ; Groundwater quality ; Groundwater management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 5
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11083 | 1256 | 2013-03-27 12:47:07 | 11083 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This report is the fourth collation of salmon and migratory trout catch statistics for England and Wales produced by the Environment Agency. For the years 1989-94 these statistics were published by the National Rivers Authority (NRA) and for the years 1983-88 by the Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research, in its Data Report series. This report is designed to be a reference document of declared salmonid catches in England and Wales. Salmon stock assessment data including provisional catches, counter run estimates and some juvenile data are now published in an annual assessment for the International Council for the Exploitation of the Seas (ICES). The second report in this series was published jointly by the Environment Agency and the Centre for Environment, Fisheries & Aquatic Science (CEFAS) in April 1998 (Anon 1999).
    Description: Environment Agency Archives North West
    Description: + tables and figures
    Keywords: Fisheries ; Limnology ; Management ; UK ; England ; Wales ; Inland waters ; Rivers ; Migratory species ; Freshwater fish ; Fish counters ; Fish passes ; Fish catch statistics ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 6
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11096 | 1256 | 2013-04-03 15:31:02 | 11096 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This is the River Eden RHS and geomorphology evaluation: Final report October 2001 produced by the Environment Agency North West in 2001. This report analysed the River Habitat Survey (RHS) and geomorphology data to evaluate the level of habitat quality and the geomorphological characteristics of the River Eden and sub-catchments. RHS data and geomorphological assessment data was collected within the study areas by CEH and Fluvial Environmental Services Ltd. The River Eden and its sub-catchments are being considered as a Special Area for Conservation (SAC) due to the presence of habitat types and species, which are rare or threatened within Europe. The purpose of the project is to provide an overview of the state of the catchment in terms of river habitats and geomorphological processes in order to aid the derivation of sound management for this proposed SAC.The aim of this report was to determine the state of the environment within the Eden and sub-catchments and identify the main pressures on the system in order to derive sound management options.
    Description: Environment Agency Archives North West
    Keywords: Ecology ; Limnology ; Management ; England ; River Eden ; Inland waters ; Rivers ; RHS ; Environmental assessment ; Water quality ; Nature conservation ; Eden Rivers Trust ; English Nature
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 133
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  • 7
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    Environment Agency | Carlisle, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11100 | 1256 | 2013-04-03 15:27:32 | 11100 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the Report of 1996 survey of Trout Beck with particular reference to spawning gravel quality and invertebrates as a food source for salmonids produced by the Environment Agency North West. Whilst the main River Derwent is quite a high profile salmon fishery, Trout Beck is not a significant fishery in its own right, but serves to maintain the genetic integrity of the wild populations of trout and salmon in the catchment by providing a unique habitat. This survey addressed the invertebrate food availability, and additionally looked at the substrate to try to determine whether the bed type might actually be unsuitable for spawning, especially in view of the previously mentioned silt inputs.
    Description: Environment Agency Archives North West
    Description: + 1 map and 1 figure
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Trout Beck ; Inland waters ; Rivers ; Environmental survey ; Freshwater fishes ; Migratory species ; Invertebrate larvae
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 8
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11109 | 1256 | 2013-04-06 16:11:25 | 11109 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Lynher Salmon Action Plan Final document produced by the Environment Agency in 1999. This final Salmon Action Plan (SAP) for the River Lynher catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Lynher salmon stock. The actions presented within this final Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. The River Lynher salmon stock has suffered two periods of spawning target failure within the past ten years. This assessment can only be estimated and in this case is likely to be dependent on river flow and the availability of salmon to the rods as only rod catch is used in the compliance assessment.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Lynher ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 12
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  • 9
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11114 | 1256 | 2013-04-06 16:10:41 | 11114 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Tavy Salmon Action Plan Final document produced by the Environment Agency in 2000. This final Salmon Action Plan (SAP) for the River Tavy catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Tavy salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. This Action Plan aims to promote long term collaboration and co-operation between the Agency and other interested parties to effectively and efficiently manage the stock of salmon on the River Tavy.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Tavy ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 10
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11119 | 1256 | 2013-04-06 16:10:00 | 11119 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Axe Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Axe Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. This document is part of a national initiative to produce action plans for the management of all the main salmon rivers of England and Wales by 2003. The aim of this plan is (i) to assess the status of the salmon stocks and fisheries of the River Axe - including the use of Conservation Limits as part of this process, (ii) to identify factors which may be limiting stock and fishery performance and (iii) to propose remedial measures address these factors. The salmon stock of the River Axe was apparently in a healthy state in the 1950s, supporting net and rod fisheries with average annual catches of around 100 and 50 fish respectively. Catches declined through the 1970s and 1980s to the extent where no salmon were recorded in the late 1980s and early 1990s. This decline was probably due largely to the effects of agricultural pollution, which virtually extinguished the salmon stock of the River Axe. Water quality has subsequently improved, but has deteriorated again in recent years.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Axe ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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  • 11
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11125 | 1256 | 2013-04-06 15:59:47 | 11125 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Lyn Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Lyn Salmon Action Plan (SAP). This approach to salmon management within the England and Wales introduces the concept of river-specific Conservation Limits as a method of assessing the status of the salmon stock. The River Lyn Salmon Action Plan follows the format of those completed for the Rivers Exe, Axe, Avon & Erme, Teign, Torridge, Taw and Dart. It is the last of eight action plans that have been produced for salmon rivers within Devon Area. The River Lyn Salmon Action Plan contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. The Lyn salmon stock is judged to be meeting its Conservation Limit. However, this assessment is uncertain as it is based on an estimate of rod exploitation rate, which in itself is also uncertain.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Lyn ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 55
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  • 12
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11117 | 1256 | 2013-04-06 16:10:16 | 11117 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the Rivers Avon & Erme Salmon Action Plan Consultation document produced by the Environment Agency in 2003. This document is part of a national initiative to produce action plans for the management of all the main salmon rivers of England and Wales by 2003. The aim of this plan is (i) to assess the status of the salmon stocks and fisheries of the rivers Avon and Erme - including the use of Conservation Limits as part of this process, (ii) to identify factors which may limiting stock and fishery performance and (iii) to propose remedial measures address these factors. The report pays attention on the external consultation of the Rivers Avon & Erme Salmon Action Plan (SAP). While the stocks of both rivers have exceeded their respective conservation limits occasionally in individual years, only the Erme has achieved a period of statistical compliance since 1993. It is possible that this situation is largely normal, due to the steep nature of the rivers, obstructions to migration and dependence on suitable flow conditions occurring at the right time of year. The decline of the spring-running component of the stocks has left the populations dependent on autumn flows for the success of the late running component. Actions required to improve compliance with Conservation Limits are proposed and prioritised. The urgent actions relate to the need to improve the consistency with which adequate numbers of salmon reach and utilise fully all the accessible areas of the river systems. This document is intended to be dynamic, with opportunities for review occurring at regular intervals. For example, as the science of fisheries management improves, particularly in the setting of Conservation Limits, so the targets may be altered to reflect any improved methodology.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; Rivers Avon & Erme ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
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  • 13
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11111 | 1256 | 2013-04-06 16:11:08 | 11111 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Plym Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Plym catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Lynher salmon stock. These issues and actions follow on from the detailed analysis of the catchment, which is presented in the River Plym SAP Consultation document.The actions presented within this final Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. The main objective of the River Plym SAP therefore, is to maintain, improve and develop the River Plym salmon stocks to a sustainable level that, on the basis of historic catch records, the catchment can clearly support. The River Plym has failed to pass its conservation limit since 1996, and the consultees felt very strongly that there were three major factors limiting the salmon stock of the River Plym.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Plym ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning target
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 14
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11123 | 1256 | 2013-04-06 16:09:16 | 11123 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Exe Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Exe Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Exe SAP follows the format of those completed for the Rivers Teign, Torridge, Taw and Dart. It is the fifth of eight action plans that will be produced for salmon rivers within Devon Area. The River Exe SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. The Exe salmon stock is judged to be meeting its Conservation Limit. However, this assessment is uncertain as it is based on an estimate of rod exploitation rate, which in itself is also uncertain. At present there is no means of accurately assessing the River Exe salmon run. In common with many other rivers, estimation of stock using catch statistics and rod exploitation rate is the model used, when direct assessment is not possible. The installation of a fish counter on the lower river, or the use of other direct counting methods, would help to provide a direct assessment of the annual run of salmon into the river. This would improve our ability to estimate the spawning escapement and hence assess compliance with the Conservation Limit.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Exe ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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  • 15
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11129 | 1256 | 2013-04-06 15:57:09 | 11129 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Teign Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Teign Salmon Action Plan (SAP). This approach to salmon management within the England and Wales introduces the concept of river-specific Conservation Limits as a method of assessing the status of the salmon stock. The River Teign Salmon Action Plan follows the format of those completed for the Rivers Torridge, Taw and Dart. It is the fourth of eight action plans that will be produced for salmon rivers within the Devon Area Fisheries, Recreation and Biodiversity Team. The River Teign SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. The Teign salmon stock is currently failing to meet its conservation limit. This failure is largely attributed to the reduction in the survival rate during the marine phase of the salmon life cycle. This is likely to constrain stocks to lower levels than have existed historically. Still further catch controls may contribute to a reduction in exploitation rates and allow stocks to recover to meet their conservation limit. Other important actions include the continuation of habitat improvement works which aim to maximise spawning habitat utilisation, spawning success, and juvenile survival and production.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Exeter ; River Teign ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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  • 16
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11131 | 1256 | 2013-04-06 15:56:47 | 11131 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Torridge Salmon Action Plan Final document produced by the Environment Agency in 2000. This final Salmon Action Plan (SAP) for the River Torridge catchment has been produced after consideration of feedback from external consultation. The SAP provides a list of the issues and actions which were agreed for a five-year programme to maintain and improve the River Torridge salmon stock. Some of these actions have already been delivered before finalising the SAP, but others have yet to be addressed. An attempt has been made to estimate the cost of the actions, identify possible sources of funding and the timescale under which they will be dealt with. The Torridge salmon stock has declined dramatically since the 1960s and is currently failing to meet the spawning target. The decline in the spring fish component has accounted largely for the overall decrease in stocks. The reasons for the decline are not fully understood, but the spring fish problem is recognised as a national issue. The rate of survival over the marine phase has reduced in recent years for both the grilse and multi-sea winter (MSW) components. This is undoubtedly a contributory factor, which may now constrain stocks to lower levels than have existed historically. Agricultural pollution is recognised as one of the main factors limiting freshwater production. This SAP aims to promote long term collaboration between the Agency and other interested parties in managing the River Torridge salmon stock and fisheries.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Exeter ; River Torridge ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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  • 17
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    Environment Agency | Birmingham, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10615 | 1256 | 2013-04-03 15:24:53 | 10615 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This is the Coleopteran Fauna of ERS on the river Dane, Cheshire: a survey report produced by the Environment Agency in 2003. A comprehensive survey of the Exposed Riverine Sediment (ERS) on the River Dane, Cheshire was undertaken between mid-April and mid-June 2003. 6 locations were selected and subsequently examined to determine the importance of the constituent invertebrate fauna. Appropriate sampling techniques (i.e. pitfall trapping, hand searching and excavations) were directed towards the target group (Coleoptera). All adults from the chosen taxa were identified to species level. The relative value of the fauna was assessed using species richness, conservation status, fidelity score and a site quality index.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Ecology ; Limnology ; England ; Cheshire ; River Dane ; Inland waters ; Rivers ; Freshwater fishes ; Invertebrate larvae ; ERS ; Environmental assessment ; Water quality ; Species richness ; Conservation status ; Fidelity score ; Site Quality Index
    Repository Name: AquaDocs
    Type: monograph
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  • 18
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    Environment Agency | Birmingham, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10616 | 1256 | 2013-04-03 15:24:38 | 10616 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This is the Visual survey ERS Dane, Weaver & Bollin Catchments produced by the Environment Agency in 2005. Visual surveys of the River Dane downstream of the confluence with the Swettenham Brook, the River Weaver, and the River Bollin catchment in the EA Northwest South area of England were undertaken between 3rd and 9th February 2005 with the aim of identifying the spatial distribution and relative quality of exposed Riverine sediments (ERS). The potential value of these ERS in terms of likely habitat quality for ERS invertebrate communities was determined by recording a suite of appropriate environmental variables. Following an initial cartographical analysis of reaches likely to contain ERS, tens of kilometres of riverbank were inspected and 67 areas of ERS were selected for detailed visual survey. Site characteristics ranged widely both between and within catchments, with habitat quality ranging from poor to very high.
    Description: Environment Agency Archives North West
    Keywords: Ecology ; Limnology ; England ; Cheshire ; River Dane ; River Weaver ; River Bollin ; Inland waters ; Rivers ; Invertebrate larvae ; ERS ; Environmental assessment ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 63
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    Environment Agency | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10994 | 1256 | 2013-03-26 13:49:13 | 10994 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-26
    Description: This is the technical report of a hydrogeological assessment of the Delamere sandsheet and environments by the Environment Agency.The overall objective of the study is to carry out Stage 3-appropriate assessment, under the EU Habitats Directive (92/43/EEC), of the influence of activities permitted by the Agency relating to groundwater on candidate Special Areas of Conservation (cSAC). The geology of Delamere area, based on published and collected information is described in Section2. Groundwater flow and water quality are described in Section 3, including sections on groundwater levels, aquifer properties, groundwater discharge and hydrogeochemisty. A water balance for the sandsheet for the period 2001-2002 is presented in Section 4, and the hydrogeological conceptual model of the area is described in Section 5. The assessment of the possible impacts of Agency-permitted groundwater abstractions on Oakmere and Abbots Moss is presented in Section 6 whilst conclusions and recommendations are given in Section 7.
    Description: Environment Agency Archives North West
    Description: + figures
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Delamere sandsheet ; Habitats Directive ; Hydrogeological environment ; Environmental assessment ; Groundwater quality ; Groundwater management ; Water table ; Aquifer
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11106 | 1256 | 2013-04-06 16:11:53 | 11106 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Fowey Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Fowey Salmon Action Plan (SAP). The River Fowey SAP follows the format of those completed for the Rivers Tamar, Lynher, Tavy and Camel. It is the 5th of 7 action plans that will be produced for salmon rivers managed by the Cornwall Area Fisheries, Recreation and Biodiversity Team. This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Fowey SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. Notably, there are historic workings for copper and china clay and two significant potable supply reservoirs (Siblyback and Colliford) which have been constructed within the catchment during the past 35 years. The whole of the Fowey catchment is set at the highest water quality grading of RE1 and this standard is met in all reaches of the River Fowey and its tributaries.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Fowey ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 64
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11112 | 1256 | 2013-04-06 16:10:59 | 11112 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Tamar Salmon Action Plan Consultation document produced by the Environment Agency in 1998. The report pays attention on the external consultation of the River Tamar Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Tamar was one of the premier salmon rivers in the West Country, supporting fifteen licensed estuary nets, and the second highest rod catch behind the River Exe. The River Tamar SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Tamar ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/msword
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11105 | 1256 | 2013-04-06 16:12:01 | 11105 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Camel Salmon Action Plan Final document produced by the Environment Agency in 2002. This final Salmon Action Plan (SAP) for the River Camel catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Camel salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. This Action Plan aims to promote long term collaboration and co-operation between the Agency and other interested parties to effectively and efficiently manage the stock of salmon on the River Camel.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Camel ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10901 | 1256 | 2013-03-22 13:42:52 | 10901 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the River Goyt & Etherow Crayfish Survey report from the Environment Agency held between August and November 2000. The report focuses on the need to verify the presence of the non-native American signal crayfish (Pacifastacus leniusculus) in the main River Goyt, and determine its distribution. Signal crayfish have been reported in the River Goyt after spreading from a known population centre in Hollywood End Brook, to the east of Marple Bridge. The report contains sections on results, discussion and a summary. The section on results shows maps of presence or absence of different crayfish species in River Goyt, and the Mersey/ Weaver river systems such American signal crayfish (Pacifastacus leniusculus) and European freshwater crayfish (Austopotamobius pallipes).
    Description: Environment Agency Archives North West
    Description: + 2 figures
    Keywords: Fisheries ; Limnology ; Management ; England ; Goyt ; Geographical distribution ; invasive species ; signal crayfish ; European freshwater crayfish
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 7
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    Environment Agency | Bristol. UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10903 | 1256 | 2013-03-22 13:40:54 | 10903 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-01
    Description: This is the Proposed Environmental Quality Standards (EQS) for Phenol in Water prepared for the National Rivers Authority, and published by the Environment Agency in 1995. The report reviews the properties and uses of phenol, its fate, behaviour and reported concentrations in the environment and critically assesses the available data on its toxicity and bioaccumulation. The information is used to derive EQSs for the protection of fresh and saltwater life and for the abstraction of water to potable supply. Phenol is widely used as a chemical intermediate and the main sources for phenol in the environment are of anthropogenic origin. Phenol may also be formed during natural decomposition of organic material. The persistence of phenol in the aquatic environment is low with biodegradation being the main degradation process (half-lives of hours to days). Phenol is moderately toxic to aquatic organisms and its potential to bioaccumulate in aquatic organisms is low.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; Environmental Quality Standards (EQSs) ; Phenol ; Aquatic toxicity ; Freshwater ; Saltwater
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 100
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10913 | 1256 | 2013-03-22 14:06:43 | 10913 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Stillwaters monitoring programme summary results 2000 from the Environment Agency. In May 1997, a Stillwaters meeting was held to discuss the way forward in stillwaters monitoring. It decided upon the establishment of a three year rolling programme, in which three stillwaters would be monitored three times a year, every third year. During 2000, stillwaters monitored for the fourth year of the Stillwaters Monitoring Programme were Hatch Mere, Marbury Big Mere, Comber Mere, Tabley Mere, Tatton Mere and Melchett Mere. Algal, zooplankton and water chemical samples were taken on all meres. Surveys of Tabley Mere and Comber Mere continued on from last year when water quality concerns were highlighted. Continuous monitoring in Oak Mere, including water level data continued in 2000. Fish surveys were carried out in Tatton Mere and Comber Mere. Tabley Mere survey was abandoned due to the awkward bathymetry of the mere. No invertebrate samples were taken in 2000 due to lack of resources.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Environmental assessment ; Environmental monitoring ; Survey ; Water Quality ; Eutrophication ; Inland waters ; Pollution ; Fish surveys
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 20
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10923 | 1256 | 2013-03-22 13:33:59 | 10923 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Restormel Fish Counter, Annual Report 2002 produced by the Environment Agency South West Region on March 2003. The report presents the daily upstream counts of migratory salmonids recorded on the River Fowey at Restormel Weir fish counting station (SX 107 613) in 2002. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws. The fish counter at Restormel is a resistivity based system (Logie 2100A - Aquantic limited) and is installed on the weir at Restormel approximately 2 km upstream of the tidal limit. The run pattern observed for salmon and sea trout in 2002 was generally consistent with that of previous years. The upstream salmon / large sea trout count for 2002 was 1804.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Fowey ; Migratory species ; Fish counters ; Population dynamics
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 41
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10935 | 1256 | 2013-03-26 14:00:06 | 10935 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Proposed Environmental Quality Standards (EQS) for Nonylphenol in Water produced by the Environment Agency in 1997. The report reviews the properties and uses of Nonylphenol, its fate, behaviour and reported concentrations in the environment, and critically assesses available data on its toxicity and bioaccumulation. The information is used to derive EQSs for the protection of fresh and saltwater life as well as for water abstracted to potable supply.Nonylphenol (NP) is used extensively in the production of other substances such as non-ionic ethoxylate surfactants. It is through the incomplete anaerobic biodegradation of these surfactants that most nonylphenol reaches the aquatic environment in effluents, e.g. from sewage treatment works and certain manufacturing operations. It was explicitly stated by the Environment Agency that the EQS was to be derived for NP and not Nonylphenol ethoxylates. However, since NP is unlikely to be present in the aquatic environment in the absence of other nonylphenol ethoxylate (NPE) degradation by-products, the toxicity, fate and behaviour of some of these (i.e. nonylphenol mono- and diethoxylates (NP1EO and NP2EO), mono- and di-nonylphenoxy carboxylic acids (NP1EC and NP2EC) have also been considered in this report. In the aquatic environment and during sewage treatment, NPEs are rapidly degraded to NP under aerobic conditions. NP may then be either fully mineralised or may be adsorbed to sediments. Since NP cannot be biodegraded under anaerobic conditions it can accumulate in sediments to high concentrations.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; Environmental Quality Standard ; EQS ; Nonylphenol ; Freshwater ; Saltwater ; Toxicity ; Bioaccumulation
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
    Format: 75
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10933 | 1256 | 2013-03-26 14:01:39 | 10933 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Cheshire Stillwaters Summary results of 1999 produced by the Environment Agency on February 2000. The report highlights the water quality concerns of those areas surveyed by the Stillwaters Monitoring Programme: Oak Mere, Betley Mere, Petty Pool, Tabley Mere, Comber Mere and Norbury Mere. The report contains divided by area sections on physic-chemical characteristics and water chemistry, Algal and Zooplankton surveys, Discussion, Planned Surveys 2000 and survey maps. 1999 data from Petty Pool, Betley Mere, Comber Mere and Tabley Mere were classified by the trophic status of each stillwater as hyper-eutrophic/ eutrophic, and Oak Mere were classified as mesotrophic/ eutrophic.
    Description: Environment Agency Archives South West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Cheshire ; Water quality ; Environmental monitoring ; phytoplankton ; zooplankton
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 11
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10946 | 1256 | 2013-03-26 13:59:36 | 10946 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-25
    Description: This is the Impact Assessment of ionising Radiation on Wildlife document produced by the Environment Agency in 2001. This report describes the behaviour and transport of radionuclides in the environment, considers the impact of ionising radiation on wildlife, and makes recommendations on an approach for the Impact assessment of ionising radiation on wildlife for England and Wales. The assessment approach focuses on three ecosystems representative of those considered potentially most at risk from the impact of authorised radioactive discharges, namely a coastal grassland (terrestrial ecosystem); estuarine and freshwater ecosystems. The likely scale of the impact on wildlife is also assessed in light of a preliminary analysis based on this assessment approach. The report demonstrates the behaviour and transfer of radionuclides in a number of different ecosystem types. Particular emphasis is placed on exposure pathways in those ecosystems most likely to be impacted by the authorised discharges of radioactivity within England and Wales. The use of biomarker techniques is reviewed in the report, and their application to the study of exposure to multiple contaminants is discussed.
    Description: Environment Agency Archives North West
    Description: + glossary
    Keywords: Fisheries ; Limnology ; Management ; Europe ; UK ; Pollution effects ; Radionuclides ; Biomarker ; Freshwater ; Estuarine ; Coastal grassland
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 222
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10987 | 1256 | 2013-03-26 13:50:46 | 10987 | Environment Agency, UK (Freshwater Biological Association)
    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 Rochdale Canal cSAC.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 Rochdale Canal 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 Rochdale Canal 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 ; Rochdale Canal ; Habitats Directive ; SAC ; SPA ; Screening ; Assessment ; Impacts ; Waste management ; Discharge licences ; Abstraction licences ; Pollution prevention ; Pollution control
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 43
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11028 | 1256 | 2013-03-26 13:42:29 | 11028 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-26
    Description: This is the River habitat survey and geomorphological evaluation of the Glaze Brook Catchment report produced by the Environmental Research and Consultancy of the University of Liverpool in 2002. The major aims of the project were to provide baseline information on river habitats in the Glaze catchment using standard River Habitat Survey (RHS) methods (sampling 25% of the catchment length) and, through the geomorphological audit, to assess the distribution and intensity of geomorphological processes, notably sediment transfer, sources and sinks. This information was then used to develop informed management recommendations. The Glaze catchment is a heavily modified watercourse of generally poor habitat quality. The most important factors contributing to the low quality of the sites are poor bank and channel features; low diversity/absence of channel vegetation; paucity of bankside trees and, to a lesser extent, a lack of channel substrate diversity. The high degree of modification relates principally to extensively resectioned banks and channels plus extensive culverting in the urban parts of the catchment.
    Description: Environment Agency Archives North West
    Description: +6 appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Glaze brook catchment ; Inland waters ; River Habitat Survey ; Habitat Quality Assessment ; Freshwater pollution ; Restoration ; Water quality
    Repository Name: AquaDocs
    Type: monograph
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11120 | 1256 | 2013-04-06 16:09:51 | 11120 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Axe Salmon Action Plan Final document produced by the Environment Agency in 2004. The River Axe Salmon Action Plan (SAP) has been produced after consideration of feedback from public consultation. The final plan provides a list of the agreed issues and actions for the next five years to maintain and improve the salmon stock of the River Axe. Efforts have been made to identify possible sources of funding, partners and timescales. It indicates how the plan will be managed, including the process for reviewing stock status, issues, actions and progress. Low marine survival is currently a major factor limiting salmon stocks throughout the United Kingdom. However, on the River Axe the freshwater environment is still the main factor limiting the recovery of the salmon stock. Most of the adults returning to the Axe at present are probably derived from hatchery reared smolts, although there has been some natural reproduction in recent years. Juvenile populations in the Yarty indicate that this is a tributary where salmon have started to re-establish a self-sustaining population. Actions to improve the quality of the freshwater environment, both in terms of water quality and sedimentation, are seen as the top priorities, and are required to allow the Axe to support a self-sustaining salmon population.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; Rivers Axe ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11121 | 1256 | 2013-04-06 16:09:43 | 11121 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Dart Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Dart Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The north of the River Dart catchment is included in the Dartmoor candidate Special Area of Conservation (cSAC), designated under the Council EC Directive 92/43/EEC, the “Habitats Directive”. One of the conservation objectives for the cSAC is to maintain the habitat for Atlantic Salmon, Salmo Salar in favourable condition. The River Dart is an important salmon, sea trout and brown trout fishery with no significant coarse fishery. However, eels are ubiquitous throughout the catchment and are lightly exploited. The River Dart SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; Rivers Dart ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11126 | 1256 | 2013-04-06 15:59:23 | 11126 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Lyn Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Lyn catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Lyn salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. This SAP aims also to promote long term collaboration between the Agency and other interested parties in managing the River Lyn salmon stock and fisheries.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Lyn ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11107 | 1256 | 2013-04-06 16:11:45 | 11107 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Fowey Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Fowey catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Fowey salmon stock. The actions presented within this final Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. The main objective of the Fowey SAP therefore, is to maintain, improve and develop the Fowey salmon stocks to a sustainable level that, on the basis of historic catch records, the catchment can clearly support. Although the Fowey is passing its conservation limit, the consultees felt very strongly that there were two major factors limiting the salmon stock of the River Fowey- the overgrazing of Bodmin Moor and the use of the catchment for water supply by South West Water.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Fowey ; Inland waters ; Freshwater fish ; Migratory species ; Conservation limit ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11108 | 1256 | 2013-04-06 16:13:04 | 11108 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Lynher Salmon Action Plan Consultation document produced by the Environment Agency in 1998. The report pays attention on the external consultation of the River Lynher Salmon Action Plan (SAP). The River Lynher SAP follows that for the River Tamar and is the second of seven action plans that will be produced for salmon rivers managed by the Cornwall area fisheries department. This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Lynher SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. The analysis of recent and historical catches of salmon on the River Lynher from both the rod and net fisheries indicated the fishery's reliance upon post 1 June salmon. Historically, annual salmon catches (both rod and net) on the River Lynher have been found to consist of a much higher proportion of pre 1 June (spring) salmon. Evidence is provided that illustrates the extent of the decline within this stock component since the early 1980s.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Lynher ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8517 | 1256 | 2012-12-21 15:29:18 | 8517 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-03
    Description: In February 1996, the National Salmon Management Strategy was launched by the Environment Agency's predecessor the National Rivers Authority (NRA, 1996).The strategy concentrates on four main objectives for the management of salmon fisheries in Englandand Wales. These are primarily aimed at securing the well being of the stock, but in doing so willimprove catches and the associated economic returns to the fisheries. The four main objectives are :(i) Optimise the number of salmon returning to home water fisheries,(ii) Maintain and improve fitness and diversity of salmon stocks.(Hi) Optimise the total economic value of surplus stocks,(iv) Ensure necessary costs are met by beneficiaries
    Description: Environment Agency North West Archives
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Kent Catchment ; Rivers ; Salmon fisheries ; Salmo salar ; Salmo trutta ; Fishery surveys ; Stock assessment ; Juveniles ; Catch statistics
    Repository Name: AquaDocs
    Type: monograph
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    Environment Agency
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8522 | 1256 | 2012-12-21 15:27:55 | 8522 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-03
    Description: The following brief is to ensure standard criteria and format are used for the scoping and environmental assessment of water resources projects leading to the production of an environmental report or Environmental Statement. This volume is one of a series giving guidance on water resources projects. The water resources projects will predominantly comprise drought orders and permits,time limited and permanent licences. Smaller projects, such as spray irrigation licences, will not require an environmental assessment. This document forms the basis fordiscussions between the Environment Agency North East Region, consultees and the applicant. The process aims to produce a thorough assessment. Each section addresses consecutive elements of the assessment process. Section 2outlines the structure for a scoping document, section 3 outlines the structure for an Environmental Statement and section 4 gives guidance on the role of an EnvironmentalAction Plan. Appendices 1 and 2 should be used in conjunction with the scoping process and cover awide range of aspects. However, some projects may not require all of them to be included, whilst for others, the inclusion of additional factors may be appropriate.
    Description: Environment Agency Archives North West
    Keywords: Environment ; Limnology ; England ; Inland waters ; Fisheries ; Environmental monitoring ; Environmental assessment ; Environmental Impact ; Environmental legislation
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10951 | 1256 | 2013-03-26 13:57:18 | 10951 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-25
    Description: This is the Salmonid & Freshwater Fisheries Statistics for England & Wales 1996 produced by the Environment Agency in 1997. The principal aim of the Environment Agency in respect of fisheries is to maintain improve and develop fish stocks, the basic fisheries resource, in order to optimise the social and economic benefits from their sustainable exploitation. This report is the second collation of salmon and migratory trout catch statistics for England and Wales produced by the Environment Agency. For the years 1989-94, these statistics were published by the National Rivers Authority (NRA) and the years 1983-88 by the Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research in its Data Report series. The 1996 data, have been presented in a broadly similar format to those of 1995. This report makes a general review of different catches: Northumbria, Yorkshire, Anglian, Thames, Southern, Wessex, South West, Severn-Trent, Welsh and North West.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Wales ; Northumbria ; Yorkshire ; Anglian ; Thames ; Southern ; Wessex ; South West ; Severn-Trent ; Welsh ; North West ; Inland waters ; Rivers ; River fisheries ; Freshwater fish ; Fishery management ; Fishery data ; Fish catch statistics ; Migratory species ; Licensing
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10988 | 1256 | 2013-03-26 13:50:37 | 10988 | Environment Agency, UK (Freshwater Biological Association)
    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 West Midlands Mosses cSAC, Wybunbury Moss and Abbots Moss.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 West Midlands Mosses cSAC, Wybunbury Moss and Abbots Moss 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 West Midlands Mosses cSAC, Wybunbury Moss and Abbots Moss 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 ; West Midlands Mosses ; Wybunbury Moss ; Abbots Moss ; Habitats Directive ; SAC ; SPA ; Screening ; Assessment ; Impacts ; Waste management ; Discharge licences ; Abstraction licences ; Pollution prevention ; Pollution control
    Repository Name: AquaDocs
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    Environment Agency | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11030 | 1256 | 2013-03-26 13:42:00 | 11030 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-26
    Description: This is the River Gowy and Thornton Brook improvements: Environmental Action Plan report produced by the Environment Agency in 2000. This Environmental Action Plan relates to the proposals by the Environment Agency to improve the flood defences of land adjacent to the River Gowy, about 3 km east of Ellesmere Port, Cheshire. The purpose of the Environmental Action Plan (EAP) is to provide details of how the issues addressed in the Environmental Statement (ES) will be carried through to the completion of the project. The EAP represents a commitment to the environmental recommendations formulated during the environmental assessment process and should be closely adhered to during the design, construction and post project monitoring o f the works. For any matters that cannot be finalised until during construction the constraints will be detailed in the plan so they are implemented in the contracts.
    Description: Environment Agency Archives North West
    Description: +appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; River Gowy ; Thornton Brook ; Inland waters ; Environmental Action Plan ; Aquatic emergent plants
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11082 | 1256 | 2013-03-27 12:47:17 | 11082 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This report is the third collation of salmon and migratory trout catch statistics for England and Wales produced by the Environment Agency. For the years 1989-94, these statistics were published by the National Rivers Authority (NRA) and the years 1983-88 by the Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research in its Data Report series. This report is designed to be a reference document of declared salmonid catches in England and Wales and is produced in the autumn following the season. Salmon stock assessment data including provisional catches, counter run estimates and some juvenile data are now published in an annual assessment for the International Council for the Exploitation of the Seas (ICES). The first report in this series was published jointly by the Environment Agency and the Centre for Environment, Fisheries & Aquatic Science (CEFAS) in April 1997 (Anon 1998).
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; UK ; England ; Wales ; Inland waters ; Rivers ; Migratory species ; Freshwater fish ; Fish counters ; Fish passes ; Fish catch statistics ; Fisheries
    Repository Name: AquaDocs
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    Environment Agency | Cardiff, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11085 | 1256 | 2013-03-27 12:46:33 | 11085 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-27
    Description: This report presents a preliminary assessment of the state of salmon stocks and fisheries in England and Wales in 2001 to assist ICES in providing scientific advice to NASCO and to provide early feedback to fishery managers and anglers. The chief indicators of the state o f salmon stocks are normally the catches taken by rod and net fisheries. However, in 2001 angling was affected by the outbreak of foot and mouth disease (FMD), which restricted angling opportunities and access to rod fisheries in many parts of the country for lengthy periods. It is impossible to quantify the impact that FMD had on rod catches, although these were undoubtedly significantly reduced; net fisheries were unaffected by FMD. The declared salmon catch for 2001 (including those fish released alive by anglers) is provisionally estimated at 209 tonnes, representing some 57,000 fish, and comprising 153 tonnes (-43,000 fish) by nets and fixed engines and 56 tonnes (-14,000 fish) by rods. For direct comparison with previous years, it should be noted that the declared catch prior to the issue of a second reminder was about 49 tonnes (see below). An estimated 26 tonnes (43%) of the rod catch was released alive. These figures do not take account of catches of salmon which go unreported (including those taken illegally), and it is estimated that there may have been a total of 33 tonnes of additional fish caught in 2001; approximately 15% of all fish killed.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; UK ; England ; Wales ; Inland waters ; Rivers ; Migratory species ; Freshwater fish ; Fish counters ; Fish passes ; Fish catch statistics ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11124 | 1256 | 2013-04-06 16:08:24 | 11124 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Exe Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Exe catchment has been produced after consideration of feedback from external consultation. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. This SAP aims also to promote long term collaboration between the Agency and other interested parties in managing the River Exe salmon stock and fisheries. The River Exe salmon population is currently judged to be passing its Conservation Limit. However, its apparent declining trend in egg deposition in the recent years and the high uncertainty in its stock assessment suggest the following actions as priorities: actions promoting good land management, maximising salmon natural spawning activity and protecting smolts throughout the Exe catchment. Also, the lack of information on salmon stocks and its habitat quality and availability is recognised as the main factor limiting the better management of salmon fisheries. The actions presented in this document are perceived as those required to address the important issues and factors limiting the salmon stock.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Exe ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11110 | 1256 | 2013-04-06 16:11:17 | 11110 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Plym Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Plym Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Plym SAP follows the format of those completed for the rivers Tamar, Lynher, Tavy, Camel and Fowey. It is the sixth of seven action plans that will be produced for salmon rivers managed by Cornwall Area. The River Plym SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. Notably, there are historic workings for china clay and a significant potable water supply at Burrator Reservoir. The main River Plym has been designated as River Ecosystem class 1 for its water quality objectives. This is the highest water quality target set for rivers. This standard has been met in all reaches of the main River Plym and River Meavy.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Plym ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11128 | 1256 | 2013-04-06 15:57:17 | 11128 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Taw Salmon Action Plan Final document produced by the Environment Agency in 2000. This final Salmon Action Plan (SAP) for the River Taw catchment has been produced after consideration of feedback from external consultation. The SAP provides a list of the issues and actions which were agreed for a five-year programme to maintain and improve the River Taw salmon stock. Some of these actions have already been delivered before finalising the SAP, but others have yet to be addressed. An attempt has been made to estimate the cost of the actions, identify possible sources of funding and the timescale under which they will be dealt with. The Taw salmon stock is currently failing to meet its spawning target. However, there was a period of compliance in the 1990s following a decade of failure through the 1980s. The freshwater environment of the Taw has improved in recent years. The actions presented in this SAP are perceived as those that are required to address, as far as possible, the important issues and factors currently limiting the salmon stock on the river. This SAP aims to promote long term collaboration between the Agency and other interested parties in managing the River Taw salmon stock and fisheries.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Taw ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11113 | 1256 | 2013-04-06 16:10:50 | 11113 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Tavy Salmon Action Plan Consultation document produced by the Environment Agency in 1999. The report pays attention on the external consultation of the River Tavy Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. In addition, salmon action plans have for the first time, attempted to evaluate in economic terms, all of the contributory components of the salmon fishery. The River Tavy Salmon Action Plan follows that for the River Tamar and River Lynher and is the third of seven action plans that will be produced for salmon rivers managed by the Cornwall Area FER department. The River Tavy SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Tavy ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11115 | 1256 | 2013-04-06 16:10:33 | 11115 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Yealm Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Yealm catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Yealm salmon stock. The actions presented within this Salmon Action Plan clarify the important issues and factors currently limiting the salmon stock on the river. The resolution of these issues should ensure that a sustainable salmon population will be maintained for future generations. An attempt has been made to cost these actions, identify possible sources of funding and to provide a timescale for action. The main objective of the River Yealm SAP is to maintain, improve and develop the River Yealm salmon stocks to a sustainable level that, on the basis of historic catch records, the catchment can clearly support.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Yealm ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11122 | 1256 | 2013-04-06 16:09:36 | 11122 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Dart Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Dart catchment has been produced after consideration of feedback from external consultation. It provides a list of the agreed issues and actions for the next five years to maintain and improve the River Dart salmon stock. The low marine survival (likely to be below 10%) is possibly to be the main cause for the River Dart salmon stock non-compliance with its conservation limit. Actions protecting smolts and maximising spawning activity of returning adults are seen as priorities to contribute to mitigate the low marine survival. Also the lack of information on salmon stock and its habitat is recognised as one main factor limiting the better management of salmon fisheries. Efforts will be focused on gaining more knowledge and improving modelling techniques. The actions presented in this document are perceived as those required to address the important issues and factors limiting the salmon stock. This SAP aims also to promote long term collaboration between the Agency and other interested parties in managing the River Dart salmon stock and fisheries.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Dart ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Cornwall, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11116 | 1256 | 2013-04-06 16:10:23 | 11116 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Yealm Salmon Action Plan Consultation document produced by the Environment Agency in 2003. The report pays attention on the external consultation of the River Yealm Salmon Action Plan (SAP). This strategy represents an entirely new approach to salmon management within the UK and introduces the concept of river-specific salmon spawning targets as a salmon management tool. The River Yealm Salmon Action Plan follows the format of those completed for the rivers Tamar, Lynher, Tavy, Camel, Fowey and Plym. It is the final one of seven action plans that will be produced for salmon rivers managed by Cornwall Area. The River Yealm SAP contains a description of the river catchment and highlights particular features that are relevant to the salmon population and the associated fishery. Notably there are potable water abstractions in the headwaters, workings for china clay on the main tributary, two inert waste landfill sites and an aggregate quarry adjacent to the main river and inputs from several Sewage Treatment Works (STW) and two industrial estates. The main River Yealm has been designated as River Ecosystem Class 1 for its water quality objectives. This is the highest water quality target set for rivers.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Yealm ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11118 | 1256 | 2013-04-06 16:10:08 | 11118 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the Rivers Avon & Erme Salmon Action Plan Final document produced by the Environment Agency in 2004. The Rivers Avon and Erme Salmon Action Plan (SAP) has been produced after consideration of feedback from public consultation. The final plan provides a list of the agreed issues and actions for the next five years to maintain and improve the salmon stocks and fisheries of both rivers. Efforts have been made to identify possible sources of funding, partners and timescales. It indicates how the plan will be managed, including the process for reviewing stock status, issues, actions and progress. Low marine survival is currently a major factor limiting the numbers of salmon returning to spawn in both the Avon and the Erme. Actions to improve the accessibility of spawning areas and to maximise the productivity of spawning and nursery habitats are seen as priorities, which should help to offset the low marine survival. The quality of the information available to assess salmon stocks is recognised as a limiting factor in the management of salmon fisheries. The SAP aims also to promote long term collaboration between the Agency and other interested parties in managing the salmon stocks and fisheries of the Avon and the Erme.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; Rivers Avon & Erme ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
    Repository Name: AquaDocs
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11127 | 1256 | 2013-04-06 15:57:29 | 11127 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Taw Salmon Action Plan Consultation document produced by the Environment Agency in 2000. The report pays attention on the external consultation of the River Taw Salmon Action Plan (SAP). This approach to salmon management within the England and Wales introduces the concept of river-specific Conservation Limits as a method of assessing the status of the salmon stock. The River Taw Salmon Action Plan (SAP) includes a description of the current status of the rod and net fisheries and historical trends. The Taw salmon stock has declined since the 1960s and is currently failing to meet the spawning target. The decline in the spring fish component has accounted largely for the overall decrease in stocks. The reasons for the decline are unclear, but the spring fish problem is recognised as a national issue. The rate of survival over the marine phase has reduced in recent years for both the grilse and MSW components. This is undoubtedly a contributory factor, which may now constrain stocks to lower levels than have existed historically.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Cornwall ; River Taw ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fish catch statistics ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Exeter, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11130 | 1256 | 2013-04-06 15:58:59 | 11130 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-28
    Description: This is the River Teign Salmon Action Plan Final document produced by the Environment Agency in 2003. This final Salmon Action Plan (SAP) for the River Teign catchment has been produced after consideration of feedback from external consultation. This final plan provides a list of the agreed issues and actions for the next five years to maintain and improve the River Teign salmon stock. An attempt has been made to cost these actions, identify possible sources of funding, partners and the timescale under which they will be dealt with. It indicates how the plan will be managed, i.e., implemented and reviewed, and, summarises progress of on-going actions. The low marine survival (likely to be below 10%) is possibly the main cause for the River Teign salmon stock non-compliance with its conservation limit. Actions protecting smolts and maximising spawning activity of returning adults are seen as priorities to contribute to offset the low marine survival. This SAP aims also to promote long term collaboration between the Agency and other interested parties in managing the River Teign salmon stock and fisheries.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Exeter ; River Teign ; Inland waters ; Freshwater fish ; Migratory species ; Salmon Action Plan ; Fishery data ; Fishery management ; Fishery regulations ; Nature conservation ; Water quality ; Spawning targets
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10936 | 1256 | 2013-03-26 13:58:31 | 10936 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Species management in aquatic Habitats overview of sub projects and their management produced by the Environment Agency in 1998. This report was under the R&D Project, which it was initiated in 1995 to provide information on species of conservation value of particular relevance to the Environment Agency (then the National Rivers Authority, NRA), in relation to its activities affecting aquatic environments. Outputs comprise Species Action Plans (SAPs), practical management guidelines for Agency staff and third parties, and various research and survey outputs to improve the knowledge base on the status and ecological requirements of priority species. This R&D Technical Report provides an overview of the work undertaken, additionally identifying lessons to be learnt in the management of species-related research within the framework of the UK Biodiversity Action Plan. The process of species selection was initially based upon a wide ranging review of priority species of relevance to the then NRA, encompassing both highly threatened species and species that are relatively common but are at particular risk from Agency activities.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; UK ; Priority species ; Conservation ; Management ; Aquatic habitats
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 30
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10940 | 1256 | 2013-03-26 13:59:45 | 10940 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-07-02
    Description: This is the Species management in aquatic Habitats WRc Interim 1997 document produced by the Environment Agency in 1997. This document reports progress on R&D Project 640, which aims to provide information on species of conservation value of particular relevance to the Environment Agency, in relation to its activities affecting aquatic environments. A range of stand-alone outputs is being produced, comprising Species Action Plans, practical management guidelines for Agency staff and third parties, and various research outputs to improve the knowledge base on the status and ecological requirements of priority species. The species of conservation values are: water shrew, daubenton’s bat, Kingfisher, yellow wagtail, Grey wagtail, sand martin, reed bunting, dipper, marsh warbler, great crested new, spined loach, brook lamprey, river lamprey, sea lamprey, shining rams-horn snail, little whirlpool rams-horn snail, depressed river mussel, a freshwater pea mussel, native crayfish, and triangular club-rush. The process of species selection was altered during the course of the project by the report on biodiversity by the UK Biodiversity Steering Group (1995). Whilst still including species that were not particularly endangered but were greatly influenced by the activities of the Agency, the project addressed species on the ‘short’ and ‘middle’ priority lists of the Biodiversity report, particularly those for which the Agency had specific responsibilities.
    Description: Environment Agency Archives South West
    Keywords: Fisheries ; Limnology ; Management ; UK ; Priority species ; Habitat management ; Aquatic habitats
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 257
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10945 | 1256 | 2013-03-26 13:58:39 | 10945 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-25
    Description: This is the Habitats regulations for stage 3 assessments: radioactive substances authorisations report from the Environment Agency, published on October 2003. The report focuses on the stage 3 assessments of radioactive substances authorisations in UK (to take place over the next five years, starting in 2003), which may have a potential impact on European designated Natura 2000 sites such Special Protection Areas (SPA), Special Areas of Conservation (SAC); and thus require further detailed assessment. This Environment Agency R&D project was commissioned to ERC, University o f Liverpool, in conjunction with Westlakes Scientific Consulting and the Centre for Ecology and Hydrology, as part o f the agency's preparation for the Stage 3 Assessments o f radioactive substances authorisations. The aim was to prepare site information sheets containing all data relevant for individual Natura 2000 sites needing Stage 3 Assessment and to stylise and represent species that require protection under the Habitats Regulations by the reference organism geometries listed in R&D Publication 128 (Copplestone et al., 2001).
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; Europe ; UK ; Radioactive substances ; Conservation ; Protected areas ; Natura 2000 ; SPA ; SAC
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 100
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    Environment Agency | Bristol, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10957 | 1256 | 2013-03-26 13:56:03 | 10957 | Environment Agency, UK (Freshwater Biological Association)
    Publication Date: 2021-06-25
    Description: This is the Effect of water quality on coarse fish productivity and movement in the Lower River Irwell and Upper Manchester Ship Canal: a watercourse recovering from historical pollution report produced by the Environment Agency in 2003. The aim of this study was to investigate the impact of water quality upon coarse fish population dynamics in a lowland, urban watercourse. All of the research carried was undertaken in the lower River Irwell and upper Manchester Ship Canal, between February 1998 and December 2001. Of particular interest was the natural sustainability of the urban fishery given recent concern raised in the angling community over an apparent decline in coarse fish populations in lowland rivers. The research described in this report has concentrated upon the role of water quality in determining coarse fish population dynamics, and in particular: The impact of water quality upon fish growth and productivity; The impact of poor water quality and low dissolved oxygen concentrations upon fish distribution and movement; The impact of water quality upon the sexual development of fish.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Irwell ; Manchester Ship Canal ; Inland waters ; Rivers ; Invertebrates ; Freshwater fish ; Migratory species ; Fish catch statistics ; Fish distribution ; Fish population ; Population dynamics ; Population structure ; Freshwater pollution ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 148
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26271 | 2002 | 2019-02-21 02:15:25 | 26271 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: In this paper the relative concentrations and vertical distributions of primary production were investigated off Western Philippines of the South China Sea during tradewinds from April 15 to May 11, 1998. Primary productivity measurements were conducted using conventional "light-and-dark bottle" oxygen method. The net primary production estimates at ten (10) different stations established between 19° 59.2'N, 119° 58.7'E and 11° 13.5'N, 118° 03.1'E ranged from 0.10 ~ 1.53 g C m-2 d1. The result suggests that the present net production estimates in the area is remarkably higher than the estimates from other parts of the South China Sea (viz., northern coastal waters off Taiwan and southwestern parts of the SCS which included marine waters of Thailand, Indonesia and Malaysia). The highest primary production occurred at the upper 60-m well-mixed layer of station 1 in the northwestern most part of the area. Results have shown that some other hydrographic and chemical parameters (viz., temperature, salinity, light and fluorescence) greatly complicate and may not coherent with the analyses of relative distribution and abundance of primary production in the area.
    Keywords: Fisheries ; Oceanography ; Phytoplankton ; Primary production ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 235-250
    Format: 16
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26260 | 2002 | 2019-03-01 05:49:00 | 26260 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This paper presents the tuna longline fishing operation conducted in western Philippine waters as well as the port sampling conducted in Zambales. The longline fishing operation was not successful in catching tuna but caught the deep swimming species such as sharks, lancet fish and opah. The undefined and shallow thermocline might have contributed to the unsuccessful fishing operations. Another reason might be the spatial distribution of tunas brought about by the El Niño event, which causes the spreading of the warm water mass from the western Pacific Ocean to the eastern Pacific Ocean allowing the yellowfin tunas to have a wider space to move. Yellowfin tuna stock in the western Philippine waters belongs to the juvenile and subadult population while the skipjack tunas belong to the adult population as most of the catch observed during port sampling were mature. The juvenile and sub-adult stages of yellowfin tunas were not the proper size for the longline fishery, which may explain in part why no tuna was caught during the research cruise. These sizes are available principally to the purse seine fishery as observed in the port sampling survey.
    Keywords: Fisheries ; Handlining ; Purse seining ; Catch composition ; Fishery surveys ; Experimental fishing ; Longlining ; Tuna fisheries ; South China Sea ; Philippines ; Thunnus albacares ; Euthynnus pelamis
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    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 65-75
    Format: 11
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26360 | 23782 | 2019-04-02 03:35:39 | 26360 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Information handling ; Information services ; Information centres ; Aquatic sciences ; Fisheries ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 93-103
    Format: 11
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26363 | 23782 | 2019-04-03 08:15:44 | 26363 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Fishery data ; Documents ; Libraries ; Data collections ; Information services
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 125-129
    Format: 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26379 | 23782 | 2019-04-05 08:42:20 | 26379 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The benthic invertebrate (zoobenthos) fauna in Vietnamese seawaters was surveyed in April - May, 1999. Zoobenthos specimen were sampled by Smith-McIntyre grab on 38 stations and 180 species were recorded and composed of 5 major groups: Polychaeta, Crustacea, Mollusca, Echinodermata and others. The total of density and biomass zoobenthos in Vietnamese seawaters was 156.7 ind/m2 and 5943.0 mg/m2 respectively. Polychaeta and Mollusca were groups with the highest abundance in every cases considered. The remaining groups of zoobenthos such as Crustacea and Echinodermata which were lower in abundance but higher in biomass. There was a remarkable variation of zoobenthos both in species composition and density with the depth, substrate and spatial distribution. Abundance was higher in some subjects considered such as: in depth of 0 - 60m or in types of sandy components or in the Tonkin gulf and the Southeast regions. All diversity indices shown that water quantity in Vietnamese sea offshore in survey time was just satisfactory and good.
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Community composition ; Species diversity ; Abundance ; Check lists ; Zoobenthos ; Viet Nam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 55-76
    Format: 22
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26373 | 23782 | 2019-04-04 03:17:24 | 26373 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This, the fourth in the series of Technical Seminars on Marine Resources Survey, continues the essential evaluation of marine resources available in the South China Sea. This latest seminar is an evaluation of the waters of Vietnam. In the series of surveys this is identified as Area IV, There are two vital results from the survey activities; the first of these is that the scope, species composition and biomass estimation of the regional waters are assessed. Secondly another aspect is emphasized, that of the element of cooperation between the nations of the region such that no one country is isolated.
    Keywords: Fisheries ; Viet Nam ; Living resources ; Marine fish ; Fishery surveys ; Check lists ; Biomass ; International cooperation
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 434
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26371 | 23782 | 2019-04-04 01:28:43 | 26371 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information services ; Information centres ; Information handling ; Information retrieval ; Information systems ; Documents
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 197-209
    Format: 13
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26380 | 23782 | 2019-04-05 08:41:33 | 26380 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The samples of 58 stations in Vietnamese Waters were collected by M.V. SEAFDEC on 21 April - 5 June 1999. Thirty-seven groups of zooplankton were found in this study. Copepoda was the most abundance followed by Chaetognatha and Ostracoda. Biomass varied from 0.21-7.29 ml/m3 (average 1.03±1.22 ml/m3). Station 56 has the highest biomass. Abundance varied from 99-2,365 ind/m3 (average 580±527 ind/m3). Station 58 has the highest abundance due to high number of Chaetognatha, polychaete, Lucifer spp., Thecosomes and Echinodermata larvae. Whereas Station 19 has the lowest abundance. Cephalopod paralarvae were concentrated. They were classsified into 15 genera belonging to 11 families: Sepia sp., Inioteuthis sp, Loligo spp., Enoploteuthis sp., Abralia sp., Watasenia sp., Onychoteuthis sp., Ctenopteryx sicula, Nototodarus sp., Sthenoteuthis oualaniensis, Thysanoteuthis rhombus , Liocranchia sp., Teuthowenia sp., Octopus defilippi, Octopus Type A, Octopus Type B, Octopus Type C and Tremoctopus sp. Sthenoteuthis oualaniensis found to be most abundance followed by Octopus Type B and Enoploteuthis. Sthenoteuthis oualaniensis found mostly in the middle part of Vietnamese waters especially in the oceanic zone.
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Community composition ; Abundance ; Zooplankton ; Check lists ; Copepoda ; Ostracoda ; Chaetognatha ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 77-93
    Format: 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26375 | 23782 | 2019-04-04 03:33:52 | 26375 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The fisheries resources in near shore waters of Vietnam are reported to be overexploited resulting on the decrease of CPUE. It is important to develop the off-shore fisheries in Vietnam now. However information on off-shore fisheries resources in Vietnam was still very limited. This study was designed in order to supply such kind of information. The study area was in off-shore waters of Vietnam. R/V BIEN DONG (1500 Hp) with gillnet of 5 different mesh-size (73, 95, 123, 150 and 160 mm) was used for survey. The species and catch composition, distribution of promising species, relative abundance of target species were described. As a results, 98 species belonged to 32 families have been identified. Skipjack tuna was dominant (18.5 %). Distribution of relative abundance of some major species were given.
    Keywords: Fisheries ; Marine fisheries ; Catch composition ; Abundance ; Check lists ; Catch/effort ; Gillnets ; Viet Nam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 10-28
    Format: 19
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26381 | 23782 | 2019-04-05 08:37:05 | 26381 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This report is based on the data of fish eggs and larvae samples which were collected at the 58 stations of the Vietnamese waters, it covered from latitude 7° - 21° N and longitude 103° - 112° E. The cruise was carried out from April 30 to May 29, 1999 by M/V SEAFDEC. The Standard larvae net and Bongo net were used for the surface and oblique sampling respectively and 14,507 fish eggs and 18,919 fish larvae were caught. The specimens have been identified, which comprise of 78 families, 94 genera, 94 species of fish eggs and larvae observed from this cruise. The most abundant fish eggs and larvae during the survey were Engraulidae, accounted for 8.5% total of eggs and 23.8% total of larvae. The species composition was observed to be very abundant. In each station, at least 6 families and the highest 30 families were collected during the survey. The abundance of ichthyoplankton is rather relatively high, the distribution occurred mainly in the areas of along the coastal, near estuaries and around the islands. The abundance of fish eggs concentrated higher than fish larvae. The density of distribution of fish eggs and larvae in the North Sea waters concentrated the most abundant of all and of the Central sea waters was the least abundant of all. Some of families of which fish eggs and larvae have dominated were presented.
    Keywords: Biology ; Fisheries ; Oceanography ; Dominant species ; Geographical distribution ; Ichthyoplankton ; Fish eggs ; Abundance ; Check lists ; Ichthyoplankton surveys ; Fish larvae ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 94-145
    Format: 52
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26891 | 23782 | 2019-11-12 08:30:17 | 26891 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Following a brief account of the structure of the fishery sector in Bangladesh, an outline is given of fishery policy towards 2010. Before 1980, there was no statistical system for fisheries in Bangladesh. In the present system, fishery statistics are collected according to the survey manual. Catch assessment surveys for each of the 3 sectors (open-water, closed-water and marine) are undertaken; each of the surveys is designed as a sample of 1, 2, and 3 stage sampling for estimating total catches on the basis of data of sample units, which are collected by the Fishery Survey Officers. Details are given of proposals to improve the national fisheries statistics system.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Inland fisheries ; Fish catch statistics ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 15-26
    Format: 12
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26889 | 23782 | 2019-11-14 01:12:44 | 26889 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This volume provides the papers presented at the Workshop, which was conducted to assess the fishery and aquaculture statistics in the Southeast Asian region with a view to recommending ways and means to improve their compilation and dissemination. Abstracts of the papers are cited individually in this issue of ASFA.
    Keywords: Fisheries ; Data processing ; Fishery statistics ; Conferences ; Aquaculture statistics ; Fishery development ; Data acquisition ; Marine
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 332
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26895 | 23782 | 2019-11-12 08:21:30 | 26895 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Republic of Korea has a well-organized data collection system of fishery statistics for the purpose of providing information for the establishment of the national fishery policy. Details are given of the National Fishery Statistical Survey (conducted once a year), the Scientific Fishery Statistical Survey (conducted by the National Fisheries Research and Development Institute), and Fishery Censuses (conducted whenever required).
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Fishery surveys ; Inland fisheries ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 68-74
    Format: 7
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26256 | 2002 | 2019-03-01 06:05:12 | 26256 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This paper presents the preliminary result of the exploratory fishing for oceanic squid by automatic jigging method in the South China Sea Area III: western Philippines. This was part of SEAFDEC’s collaborative research survey on the fisheries resources of Area III with focus on tuna, oceanic squid and other migratory species. The research vessel M/V SEAFDEC covered 31 predetermined stations for oceanographic and fisheries survey, 10 of which were squid jigging stations. Jigging effort of four automatic jiggers at each station varied from 2-8 hours. The Indo-Pacific squid, Sthenoteuthis (Symplectoteuthis) oualaniensis (Lesson, 1830) was the only species caught throughout the fishing area. The total catch for 51.6 fishing hours consisted of 2538 individuals weighing 393.1 kg. The female-dominated catch had individuals with mantle length ranging from 9.8-24 cm and average weight of 155g. Catch-per-unit-effort (CPUE) of automatic jiggers averaged 6 ind/line/hour (968 g/l/h) or 0.4 ind/jig/h (45 g/j/h). High concentration of squid was observed at the northern portion of the survey area. Catch rates were high within 0-100 m jigging depth. S. oualaniensis in Area III occurred in two forms: the dwarf, early-maturing form without dorsal photophore (9.8-12 cm mantle length;43 g average weight) and the middle-sized form with dorsal photophore (12-24 cm ML;174 g average weight). The middle-sized form dominated the catch representing 86% of the total catch. The dwarf form was less abundant in all catches but occurred throughout the area. The middle-sized and dwarf forms had total weight of 377.5 kg (2175 individuals) and 15.6 kg (363 individuals), respectively. The females were dominant in both forms. The biomass of S. oualaniensis standing stock in the SCS Area III was estimated at 283 thousand metric tons.
    Keywords: Fisheries ; Exploratory fishing ; Jigging ; Fishery surveys ; Cephalopod fisheries ; Stock assessment ; Catch/effort ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
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    Format: application/pdf
    Format: 19-31
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26267 | 2002 | 2019-02-22 07:07:16 | 26267 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Zooplankton samples from 31 stations in the western Philippines water were collected by M.V. SEAFDEC on 7 April - 19 May 1998. Six major groups were identified: Euphausiacea, Natantia (Penaeidea and Caridea), Reptantia, Brachyura, Stomatopoda and cephalopod paralarvae. Three genera of Euphausiacea were found, they belong to one family: this group formed 25.1% - 90.9% of total taxonomic groups at different stations. The superfamiiy Penaeidea consisted of seven genera belong to four families. Caridea larvae were composed of 11 families including 19 genera. Retantia consisted of three infraorder: Stenopodidea, Thalassinidea and Parinuridea. The infraorder Parinuridea comprised two families: Palinulidae and Scyllaridae. Fourteen families of Brachyura larvae occurred in the study area. Stomatopoda was composed of three families including three genera. Cephalopoda paralarvae were presented in the plankton samples by six families representing eight genera. The maximum counts for malacostraca larvae and cephalopod paralarvae was observed at station 16. The present study reveals that some economic species such as Penaeus spp., Parapenaeus spp., Panulirus spp., Scyllarus spp., Portunus spp. and Sthenoteuthis oualaniensis were important components of the zooplankton assemblages in the western Philippines.
    Keywords: Fisheries ; Oceanography ; Plankton surveys ; Zooplankton ; Molluscan larvae ; Biological sampling ; Crustacean larvae ; South China Sea ; Philippines ; Malacostraca ; Cephalopoda
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    Format: application/pdf
    Format: application/pdf
    Format: 177-196
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26266 | 2002 | 2019-02-22 07:10:51 | 26266 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A survey on the zooplankton in the waters of western Philippines was carried out from April 18 to May 9, 1998. The estimate of zooplankton biomass ranged from 0.92 mg/m3 to 20.85 mg/m3 with a mean of 5.70 mg/m3. Maximum and minimum densities of zooplankton recorded were 4683/m3 in station 16 and 446/m3 in station 5, respectively. The zooplankton communities were comprised of 37 different categories of animal groups. Copepods were the most dominant group in zooplankton communities at all stations but their abundance varied from 5% to 43% of the total zooplankton.
    Keywords: Fisheries ; Oceanography ; Plankton surveys ; Zooplankton ; Population density ; Biomass ; South China Sea ; Philippines ; Copepoda
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    Format: application/pdf
    Format: application/pdf
    Format: 164-176
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26257 | 2002 | 2019-03-01 06:03:04 | 26257 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The diamondback squid (Tysanoteuthis rhombus) is a potential resource popularized mainly for the export market in the Central Philippines and the positive results from other experimental activities. Exploratory fishing for the species using the giant squid jig was conducted on board MV SEAFDEC and MV Maya-Maya in the South China Sea (Western Philippines) to determine its occurrence, abundance and distribution in these areas. The gear employed is basically used in small boats hence, its operation on bigger vessels was very difficult. The result was discouraging with only one diamondback squid caught out of the 175 jigs set. The description and fishing operations of the gear are presented with comparison from other research and fishing results conducted in Camotes Sea, Calauag Bay, and Ormoc Bay which are considered potential areas.
    Keywords: Fisheries ; Biological surveys ; Exploratory fishing ; Jigging ; Gear research ; Fishery surveys ; Cephalopod fisheries ; South China Sea ; Philippines ; Tysanoteuthis rhombus
    Repository Name: AquaDocs
    Type: book_section
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26255 | 2002 | 2019-03-01 06:28:01 | 26255 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Many schools of small bonito were observed at latitude 18°-19° N, longitude 118°-119° E, school of pompano dolphinfish Corphaena equiselis (Linnaeus, 1758) was also found and sampling during lured by light at night. Surface schooling of yellowfin tuna Thunnus albacares Bonnaterre, 1788) skipjack, Katsuwonus pelamis (Linnaeus, 1758) were found at latitude 14°-15° N and longitude 117°-118° E. Many fish schools were observed through acoustic equipment, Furuno FQ-70 at near shore of Zambales and off shore at latitude 13°-14° N, longitude 117°-118° E, in the deep layer of 100-250 meters depth. Oceanic squid has widely distribution over the area. Fishing activities are target on those resources. Tuna longline fishing operation was observed at latitude 16°-17° N and longitude 116°-117°E about 150 nautical miles away from shore. Payaws were set along the coastal line from northern Luzon until northern of Palawan and from near shore until 30-80 nautical miles away from coastline. Payaw in the central part were aimed for purse seine operation while the northern Payaw aimed to handline fishing. Handline fishing occupied all most near shore area from northern to the south. Squid fishing was observed many near San Fernando.
    Keywords: Fisheries ; Marine fisheries ; Purse seining ; Pelagic fisheries ; Schooling behaviour ; Tuna fisheries ; South China Sea ; Philippines ; Coryphaena equisetis ; Thunnus albacares ; Euthynnus pelamis
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    Format: application/pdf
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26264 | 2002 | 2019-03-01 05:25:20 | 26264 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Several species of oceanic squids are believed to occur in the South China Sea, especially off the west coast of the Philippines. Sthenoteuthis oualaniensis was one of the species that dominated the catch during the research survey off western Philippines in April to May 1998. Preliminary study was carried out on some biological features of Sthenoteuthis oualaniensis, particularly on maturity pattern, sex ratio and stomach content. There was a similarity in maturity pattern throughout the study areas with the same proportion of mature and immature squids. In all stations, the female squids outnumbered the male and the size of the female was general bigger than the male squids. ML50% of female was estimated to be at 175 mm while range of mature female was between 110 - 240 mm. Fish and cephalopods were the most frequently occurring prey taxa found in the diet of Sthenoteuthis oualaniensis, contributing between 37% - 46% and 30% - 43% respectively. Identification of prey taxa especially to species level was strictly limited, due to lack of proper references and understanding of the nature of fish species composition within the study areas. Results discussed in this paper may serve as early information for future biological study on S. oualaniensis.
    Keywords: Biology ; Fisheries ; Sex ratio ; Sexual maturity ; Cephalopod fisheries ; Population structure ; Fishery biology ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 135-147
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26265 | 2002 | 2019-02-22 07:16:03 | 26265 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Composition, abundance and distribution of ichthyoplankton were investigated in the South China Sea, western Philippines. Larval fish samples were collected at 31 stations by surface and double oblique tows in April/May 1998. A total of 7371.67 fish larvae, representing 85 families, were collected in the samples. Abundance of fish larvae were dominated by the Myctophidae followed by the Gonostomatidae. The ten most abundant families of fish larvae found in this study were separated into three broad categories: (1) inshore fishes, represented mainly by the Bregmacerotidae, Gobiidae, Apogonidae, and Carangidae;(2) mid zone fishes represented mainly by the Hemiramphidae, Labridae and Engraulidae;(3) offshore fishes represented mainly by the Myctophidae and Gonostomatidae. Depth and time of day appeared to affect the abundance of fish larvae and fish eggs. Fish larvae were found mainly in double oblique tows while fish eggs were found mostly in surface tows. The larvae caught at night were more abundant than larvae caught during the day. Abundance and distribution of tuna larvae are also discussed.
    Keywords: Fisheries ; Oceanography ; Ichthyoplankton ; Abundance ; Fish larvae ; South China Sea ; Philippines ; Gonostomatidae ; Myctophidae
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 148-163
    Format: 16
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26277 | 2002 | 2019-02-21 01:13:46 | 26277 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Details are given of the activities and findings of a cruise conducted by the MV SEAFDEC in western Philippine waters in order to survey the fishery resources in the area. Three major activities were conducted: an acoustic survey; an oceanographic survey; and, fish sampling. These activities were aimed to support data, information and also to provide specimens for 23 research projects in the collaborative research programme for the South China Sea, area III.
    Keywords: Fisheries ; Marine fisheries ; Fishery surveys ; Echo surveys ; Fishery resources ; South China Sea ; Philippines
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 325-329
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  • 79
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    Secretariat, Southeast Asian Fisheries Development Center in cooperation with the International Development Research Centre. | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26354 | 23782 | 2019-03-22 08:32:14 | 26354 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The need to improve fisheries information management in the region was recognized as early as 1982 when SEAFDEC, in collaboration with IDRC, organized the Seminar on Fisheries Information Science in Southeast Asia. During the Seminar, existing fisheries information systems at the national, international, and regional levels were identified, and corresponding problems and constraints were discussed. The recommendation to strengthen the national information services and to promote regional cooperation/collaboration with a view to improving effective transfer of fishery information within and outside the region was considered. As a sequel to the 1982 Seminar, the SEAFDEC Secretariat organized the SEAFIS Regional Seminar on Fishery and Aquaculture Information Systems in Southeast Asia, held in Bangkok, Thailand, from 7 to 10 February 1989. The list of participants and observers, and the Agenda appear as Annexes 1 and 2. The objectives of the Seminar were to review the current status of fishery and aquaculture information systems in the region, and to determine future activities in order to strengthen collaboration between various information sources in Southeast Asia. The Seminar also aimed to determine the appropriate training programs which could enhance development of fishery information systems in the region as well as improve information management.
    Keywords: Aquaculture ; Fisheries ; Information Management ; South East Asia ; Fisheries ; Aquaculture ; Information systems ; Information services
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 217
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  • 80
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26377 | 23782 | 2019-04-05 03:46:21 | 26377 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Work was undertaken on fish taxonomy of marine fish found in Vietnamese waters in order to revise the “Field guide to important commercial marine fishes of the South China Sea”. Two field surveys were carried out at 9 separate locations from April 23 to May 17, and 2 other locations from September 20-26, 1999. A total of 442 specimens of fish from 107 different families were collected and photographed. Among the 442 specimens, 336 specimens were successfully identified to the species level, 99 specimens to the genus level, and only 7 specimens to the family level. The sampling areas at Qui Nhon, Nha Trang and Phan Thiet provided the most number of samples of 96, 94 and 79 fish, respectively. A total of 348 fish were new candidates for the Field Guide. More field surveys are necessary to cover the rather extensive array of new fish specimens expected to be found in these waters.
    Keywords: Fisheries ; Marine fish ; Catch composition ; Ecological associations ; Check lists ; Taxonomy ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 41-54
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26374 | 23782 | 2019-04-04 03:30:40 | 26374 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A collaborative acoustic survey between the Research Institute of Marine Products (RIMP), Vietnam and the Marine Fishery Resources Development and Management Department (MFRDMD) of SEAFDEC, was carried out in Vietnam waters from April, 29 to May, 29 1999. Survey was conducted by using the scientific echo sounder, FQ70 installed on board of MV SEAFDEC. Survey transects were designed perpendicular to the coastline with standard length of 60 nautical miles. The vessel was cruised at 10 knot and stopped at each station for oceanographical sampling. During cruising, the back scattering strength, SV were collected and saved in multiple storage media. SV values were verified during data analyses by removing any noise and scattering layers. The back scattering values by area (SA) is calculated and the fish density by transects are produced. Using those parameters, the biomass of pelagic is estimated based on representative species from the sampling program and national fisheries statistics. Pelagic biomass in Vietnamese waters was estimated at 9.26 x 106 tonnes with the average density of 15.93 tonnes/km2. This estimation is based on dominance species of Decapterus maruadsi.
    Keywords: Fisheries ; Backscatter ; Pelagic fisheries ; Stock assessment ; Echo surveys ; Viet Nam ; South China Sea
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    Format: application/pdf
    Format: application/pdf
    Format: 1-9
    Format: 9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26787 | 23782 | 2019-10-01 03:09:12 | 26787 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Check lists ; Habitat ; Geographical distribution ; Fishery economics ; Trade ; Resource management ; Resource conservation ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 30-40
    Format: 11
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26788 | 23782 | 2019-10-01 03:04:43 | 26788 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Biology ; Geographical distribution ; Fish utilization ; Trade ; Fishery economics ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 41-62
    Format: 22
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  • 84
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26789 | 23782 | 2019-10-01 03:01:23 | 26789 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Biology ; Fish utilization ; Fishery economics ; Trade ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 68-94
    Format: 27
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  • 85
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26786 | 23782 | 2019-10-01 03:12:53 | 26786 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Fishery economics ; Trade ; Myanmar
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 63-67
    Format: 5
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  • 86
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26262 | 2002 | 2019-03-01 05:39:50 | 26262 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: In an attempt to come up with initial jigging fishery on oceanic squid in the Southeast Asian Region SEAFDEC conducted a comparative study on the squid in the Philippines Exclusive Economic Zone off the coast of Western Philippines from 17 April to 9 May 1998. The survey objectives are to determine the distribution and abundance of the oceanic squid in relation to oceanographic conditions and to examine the feasibility of harvesting squid with jig gear. Results from 11 sampling stations show that only one species of the purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1930) were caught by automatic squid jigging gear. The distribution and abundance of the purpleback flying squid in term of the catch-per-unit effort (CPUE, number of squid per line hour) are presented. Over the entire survey area, the CPUE of the squid averaged 5.7 squids/line hour. Drop-off rates for jigs fished on the jigging machines ranged from 0 to 0.33 squid/line hour. Angling depth where the squid were abundant ranged from 50 m to 100 m. The squid had a mean overall mantle length of 147 mm and an average weight of 0.17 kg. A total of 2,592 squid were measured and mantle length ranged from 90 to 250 mm. Female dominated the catch, accounting for 1,380 squid or 81% of the 1,701 squid sexed. Males were generally smaller than females. The mantle length composition for males was single peak mode at between 120 and 130 mm. Females also had one peak between 140 and 150 mm mantle length. A similar length-weight relationship coefficients between male and female was found. The squid were found in a warm water mass where the sea temperature ranged from 14°C to 31°C at the depth from 150m up to sea surface at night. Good fishing grounds of the squid were at 18°N latitude (18.5 squids/line hour) and at 19°N latitude (11.6 squids/line hour) off the San Fernando and Currimao coasts, respectively where the upwelling occurred. Dissolved oxygen where squid abundant was ranged from 3.27 to 4.4 ml/l. Downwelling was found at 16°N along the 118°E where less potential of the squid, the water transparency depth in this area was deep of about 44 m. A period of 6 days before and after full moon day was good fishing day, while the percent illumination of the moon was less than 30%.
    Keywords: Fisheries ; Jigging ; Cephalopod fisheries ; Population structure ; Fishery oceanography ; Environmental conditions ; Fishery biology ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 101-117
    Format: 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26275 | 2002 | 2019-02-21 01:16:31 | 26275 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The findings are presented of observations made during the SEAFDEC cruise conducted in western Philippines waters during the period mid April-mid May 1998 regarding the geostrophic and tidal currents. The dynamic high and low in the study area were owed to the relative vertical movement of water. The high area reflected a downward movement or downwelling in which as far as fisheries is concerned, is less potential for fisheries. The low dynamic surface due to cyclonic eddy caused by wind turbulence near the head of Luzon Island indicated a potential fishing ground for this season. Wind-dominated circulation with some orographic effects suggested that potential fishing grounds might be located for each season from wind data from coastal as well as ship stations.
    Keywords: Fisheries ; Oceanography ; Geostrophic flow ; Fishing grounds ; Fishery oceanography ; Current observations ; Tidal currents ; South China Sea ; Philippines
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    Format: application/pdf
    Format: application/pdf
    Format: 308-315
    Format: 8
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26278 | 2002 | 2019-03-01 06:39:00 | 26278 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Seminar presents an analysis of the results of the fisheries and oceanographic survey covering the waters of western Philippines, Area III, conducted during the period April-May 1998 by the M.V. SEAFDEC. A total of 23 papers are included in the following 4 sections: 1) Fisheries resources; 2) Fishery biology; 3) Primary production; and, 4) Fishery oceanography and marine pollution.
    Keywords: Fisheries ; Oceanography ; Pollution ; Marine fisheries ; Conferences ; Fishery surveys ; Fishery oceanography ; Fishery biology ; Fishery resources ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 336
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  • 89
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26372 | 23782 | 2019-04-04 01:40:04 | 26372 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Information services ; Data collections ; Information centres ; Fishery data
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 211-217
    Format: 7
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  • 90
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    Secretariat, Southeast Asian Fisheries Development Center in cooperation with the International Development Research Centre. | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26358 | 23782 | 2019-04-02 03:27:03 | 26358 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Information handling ; Information services ; Fishery data ; Fisheries ; Documents ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 81-91
    Format: 11
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  • 91
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26356 | 23782 | 2019-04-02 02:54:20 | 26356 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Fisheries ; Information Management ; Information systems ; Fishery data ; Data processing ; Fisheries ; Aquaculture ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 65-70
    Format: 6
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  • 92
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26362 | 23782 | 2019-04-02 05:27:50 | 26362 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information handling ; Information services ; Information systems ; Fishery data ; Documents ; Libraries ; Thailand
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 113-123
    Format: 11
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  • 93
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26365 | 23782 | 2019-04-02 05:52:52 | 26365 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Artisanal fishing ; Information services ; Fishery data ; Libraries ; Documentation ; Documents
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 145-151
    Format: 7
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  • 94
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26376 | 23782 | 2019-04-05 03:42:53 | 26376 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The survey was designed to be carried out only in the central part of the whole area which was considered as deep sea or oceanic zone. Depth of water is mostly more than 1,000 m deep. The exploration area was covered from latitude 7°-30.0’ N to latitude 16°-00.0’ N and longitude 110°-00.0’ E to longitude 112°-30.1’ E covering around 72,000 square miles. Surface temperature varied from 27.4° C to 30.1° C, shallow thermocline layer is still the characteristic of South China Sea fishing ground. It was detached from 15-50 meters depth then water temperature decreased gradually until at the depth of 130-200 m with water temperature around 15.3° C. Three tuna were caught during the survey of M.V. SEAFDEC and many were caught on local fishing boat by both type of fishing gear tuna longline and drift gill net. They are mostly skipjack tuna Katsuwanus pelamis (Linnaeus, 1758) and yellowfin tuna Thunnus albacares (Bonnaterre, 1788) others catch were dolphinfish Coryphaena hippurus (Linnaeus 1758), wahoo Acanthocybium solandri (Cuvier, 1831), shortfin mako shark Isurus oxyrinchus (Rafinesque, 1809), Bigeye thresher shark Alopias superciliosus (Lowe, 1839), swordfish Xiphias gladius (Linnaeus, 1758), Bigtooth pomfret Brama orcini (Cuvier, 1831) and the most abundance was lancetfish Alepissaurus borealis (Gill, 1874). Tuna resource was found more abundance in the middle part of the survey area than the upper and lower. Their swimming layer was around 50 m to 90 m depth.
    Keywords: Fisheries ; Vertical distribution ; Catch composition ; Pelagic fisheries ; Fishery surveys ; Stock assessment ; Longlining ; Fishing grounds ; Thermocline ; Tuna fisheries ; Fishery resources ; Alopias superciliosus ; Coryphaena hippurus ; Xiphias gladius ; Thunnus albacares ; Acanthocybium solandri ; Isurus oxyrinchus ; Euthynnus pelamis ; Brama orcini ; Alepisaurus ferox ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 29-40
    Format: 12
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  • 95
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26382 | 23782 | 2019-04-05 06:49:51 | 26382 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Tuna and tuna-like species are recognized as the most promising target species in off-shore waters of Vietnam. The first studies on biology of tuna were conducted in 1960. To ensure the sustainable exploitation of tuna resources in off-shore waters, studies on biology of tuna are being carried out by the Research Institute of Marine Products. Materials on biology of tuna were collected on board of research and commercial vessels. Fishing gears were drift gillnets with different mesh-size and longline. The results of study showed that tuna and tuna-like species are distributed widely in both neritic and oceanic waters of Vietnam. The percentage of Skipjack tuna caught by gillnet in total catch was highest (25.3 %) then followed by Frigate mackerel (8.9) and Bullet tuna (3.4). Yellowfin and Bigeye tunas were dominant in catch by longline. Biological characteristics of four species of tuna like length frequency distribution, reproduction, feeding, growth and recruitment, mortality rate were described. The author proposed that the further studies on tuna would be conducted in collaboration among countries bordering the South China Sea.
    Keywords: Biology ; Fisheries ; Length-weight relationships ; Feeding ; Growth ; Potential resources ; Recruitment ; Reproduction ; Fishery development ; Tuna fisheries ; Scombroidei ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 146-168
    Format: 23
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26254 | 2002 | 2019-03-01 06:36:07 | 26254 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: An acoustic resource survey off western Philippines waters from April 18 to May 07, 1998 was conducted by MFRDMD in collaboration with BFAR by using M/V SEAFDEC. A scientific echosounder FQ-70 developed by the Furuno Electric Co. of Japan was used to collect the SV data along the transects of 60 nautical miles apart. The raw data of backscattering strength (SV) collected from the 200 kHz transducer were carefully corrected and filtered to eliminate the influence of noises such as planktons. The corrected SV values were used to estimate the biomass of multi-species pelagic fish. Decapterus macrosoma was selected as representative species based on catch composition caught by M/V MAYA-MAYA during fishing operations. From the catch, the standard length (SL) and average weight of Decapterus macrosoma were obtained. Then the target strength (TS) of the representative species was calculated using formula, TS=20log (SL) - 66. The distribution of the SV values showed geographical difference. SV values were higher in the northern area and the southern waters of Manila. TS was estimated at -45.8 dB with the standard length of 10.2 cm. The estimated density and biomass of multispecies pelagics along the coastal waters were 18.9 tonnes/km2 and 1.672 million tonnes respectively. Meanwhile the total area and depth layer used were 88,362 km2 and 190 m respectively.
    Keywords: Fisheries ; Marine fisheries ; Stock assessment ; Echo surveys ; Multispecies fisheries ; Target strength ; South China Sea ; Philippines ; Decapterus macrosoma
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    Format: application/pdf
    Format: application/pdf
    Format: 1-10
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26263 | 2002 | 2019-03-01 06:30:16 | 26263 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Studies on age and growth using statolith of oceanic squids, Sthenoteuthis oualaniensis collected from Western Philippines, South China Sea, Area III have been conducted from 7 April - 19 May, 1998 by MV SEAFDEC Cruise No. 50-4/1998. A total of 1,707 squids were sampled and measured onboard. 74 statoliths which consist of 53 statoliths from female specimens and 21 from male specimens were extracted and processed using statolith ageing techniques with the body mantle length range from 107 - 217 mm and 115 - 167 mm, respectively. The male is small than the female where the male does not exceed 180 mm and the female can grow up to 260 mm. There is slightly a different dimension of growth at the statolith microstructure between the male and female specimens. In the ground statolith, growth increments were examined and grouped into four growth zones distinguished mainly by the width of the increments. It was found that the male exhibit slower growth and maturation occur at the same time with the female but at smaller size. The age of the male and female ranged from 135 - 259 days and 95 - 275 days, respectively. The life span of the species was considered within one year. It was also observed that the putative microcohort of the female could be explained from the length frequency distribution of the immature and mature female and a pool data of length frequency distribution from all stations.
    Keywords: Biology ; Fisheries ; Growth ; Age ; Cephalopod fisheries ; Population structure ; Balance organs ; Fishery biology ; Size distribution ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 118-134
    Format: 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26384 | 23782 | 2019-04-05 06:59:58 | 26384 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Results from 10 sampling stations show that only one species of the purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1930) were caught by automatic squid jigging gear. The distribution and abundance of the purpleback flying squid in term of the CPUE (number of squid per line hour) are presented. Over the entire survey area, the CPUEs of the squid were ranged between 0.25-9.11squids per line hour. Drop-off rates for jigs fished on the jigging machines were averaged 3 squid/line hour. Angling depth where the squid were abundant ranged between 50 and 100m. A total of 1,439 squids were measured and mantle length ranged from 90 to 240 mm. Female dominated the catch, accounting for 80% of the all squid sexed. Males were generally smaller than females. The mantle length composition for males was single peak mode at between 120 and 130 mm. Females also had one peak between 120 and 130 mm mantle length with means of 150.5 mm. A similar length-weight relationship coefficient between male and female was found. The main preys of the squid were crustaceans, fishes (mainly flying fish) and squid. The squid were found in a warm water mass where the sea temperature ranged from 18°c to 30°c at the depth from 125m up to sea surface at night. Good fishing ground of the squid was at 14°N latitude and 112°E longitude (9.11 squids/line hour) nearby the existing upwelling at 111°E longitude.
    Keywords: Fisheries ; Length-weight relationships ; Marine fisheries ; Feeding ; Geographical distribution ; Potential resources ; Sex ratio ; Salinity profiles ; Marine molluscs ; Catch-effort ; Temperature profiles ; Sthenoteuthis oualaniensis ; Ommastrephidae ; Cephalopoda ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 181-197
    Format: 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26366 | 23782 | 2019-04-02 05:42:55 | 26366 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Fishery data ; Data collections ; Documents ; Information systems ; Information handling ; Information services
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 139-144
    Format: 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26364 | 23782 | 2019-04-03 08:23:28 | 26364 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Data collections ; Information retrieval ; Information services ; Fishery data
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 131-137
    Format: 7
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