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  • 1
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    Acid waters in North West England. The effect of liming agricultural land (2021)
    National Rivers Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10961 | 1256 | 2013-03-26 13:55:26 | 10961 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the Acid waters in North West England: The effect of liming agricultural land on the chemistry and biology of the River Esk, North West England report produced by National Rivers Authority in 1992. This report focuses on the study of Acid Waters in the North West Region of England, UK, which began in 1982 and sampling was completed in October 1990. This work was initiated because of the observation of the simultaneous mortality of adult and juvenile salmon and sea-trout in both the River Esk and adjacent River Duddon in June 1980. Investigations at that time indicated that an "acid episode" was the most likely cause of this mortality. A land use study indicated that a reduction in agricultural liming may have been a major factor in the development of acid episodes and consequent fish kills in the River Esk and River Duddon. However there was no evidence that the mortalities of salmonids in the early 1980's were due to a reduction in agricultural liming. They were due to some other phenomenon such as a period of intense acid deposition.
    Description: Environment Agency Archives North West
    Description: +appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; North West ; Esk ; Inland waters ; Rivers ; Freshwater pollution ; Freshwater fish ; Migratory species ; Fish counter data ; Mortalities ; Invertebrates ; Acid Waters ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 31
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  • 2
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    The assessment of the flow requirements for upstream migration of salmonids in some rivers of North West England (2021)
    North West Water Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10975 | 1256 | 2013-03-26 13:52:48 | 10975 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the assessment of the flow requirements for upstream migration of salmonids in some rivers of North West England produced by the North West Water Authority in 1985. This report focuses on the automatic fish counters operating on the resistivity principle used for several years in North West England. This report aims to investigate the flow requirements for upstream migration of salmon and migratory trout. The data obtained confirmed that during summer months most fish movement occurs in the higher range of the available flows, but the migration flow range varied from year to year, depending on prevailing river levels. Of the other environmental variables measured, only water temperature and incident light intensity appear to have any direct association with fish movement. Information on migration flow ranges were used in conjunction with computer simulations of the effects of abstraction proposals on historical flows to assess the implications of these proposals for migratory fish.
    Description: Environment Agency Archives North West
    Description: +1figure
    Keywords: Fisheries ; Limnology ; Management ; England ; North West ; Inland Water ; Rivers ; Fish counters ; Fish populations ; Migratory species ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 10
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  • 3
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    Episodic variations in stream water chemistry associated with acid rainfall and run-off and the effect on aquatic ecosystem, with particular reference to fish populations in N.W. England (2021)
    North West Water Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10976 | 1256 | 2013-03-26 13:52:30 | 10976 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the episodic variations in stream water chemistry associated with acid rainfall and run-off and the effect on aquatic ecosystems, with particular reference to fish populations in North West England produced by the North West Water Authority in 1985. This report looks at the biological, physical and chemical information collected over a five year period from over 100 sites on upland streams in the North West Region of which drained rocks of low buffering capacity. In both Lake District and South Pennine sites striking differences were found between the composition of invertebrate communities inhabiting acid-stressed and less acid-stressed streams. Electric fishing surveys showed that acidic streams (geometric mean pH 〈5.5) generally had abnormally low densities of salmonids ( 〈 0 .2m2) and that 0+ fish were very few or absent. The latter indicates recruitment failure. Salmon were more sensitive than trout to low pH.
    Description: Environment Agency Archives North West
    Description: +9appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; North West ; Inland Water ; Rivers ; Fish populations ; Migratory species ; Fish counters ; Fish surveys ; Population dynamics ; Mortalities ; Invertebrates ; Acid rainfall ; Freshwater pollution ; Pollution effects ; Water quality ; Water monitoring
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 55
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  • 4
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    Mersey Estuary baseline survey. Analysis of macroinfaunal samples, literature review and database production (2021)
    Environment Agency North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11005 | 1256 | 2013-03-26 13:45:23 | 11005 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-26
    Description: This is the Mersey Estuary baseline survey: Analysis of macroinfaunal samples, literature review and database production report produced by the Environment Agency North West in 2002. This report presents an ecological review of the Mersey estuary along with an extensive bibliography of the available environmental literature for this system. The central objective of this programme has been to provide the information necessary to support the Environment Agency's review of existing and future consents (for discharges, abstractions etc) in the Mersey estuary. This review of consents was required because the Mersey had been designated as a Special Protection Area (SPA) under the EC Birds Directive. Therefore under Regulation 50 of the Conservation, the Environment Agency was responsible for reviewing any extant consent, or future applications, which may directly or indirectly, affected this SPA.
    Description: Environment Agency Archives North West
    Description: + appendices
    Keywords: Fisheries ; Limnology ; Management ; England ; Mersey ; Inland waters ; Rivers ; Estuaries ; Survey ; Habitat Directive ; Birds Directive ; SPA ; Invertebrates ; Birds ; Sediment quality ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 26
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  • 5
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    The effect of abstraction on fish and fisheries (2021)
    National Rivers Authority North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10972 | 1256 | 2013-03-26 13:52:57 | 10972 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the report on the Effect of Abstraction on Fish and Fisheries presented at the 24th IFM Annual Study Course, The Changing Face of Fisheries September 1993 at Cardiff.Water is abstracted from rivers for a wide variety of uses and causing potential for conflicts between abstracters, fisheries and conservation interests, especially during natural low flows. It looks at the potential effects that flow reduction has over various stages of salmonids at various stages of their life history. The flow at the time of smolt migration has been found to be positively correlated with the number of returning adults, and flow is considered to be one of the most important environmental factors inducing salmonids to enter fresh water and ascend rivers. The importance of time series data on fish stocks and angling success together with models which ultimately relate discharge to standing stock are discussed in relation to the setting up of Minimum Acceptable Flows.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; National River Authority ; Water abstractions ; Environmental assessment ; Population dynamics ; Salmonids ; Minimum Acceptable Flows ; Migratory Fish
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 18
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  • 6
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    Eden Fisheries Advisory Committee 4th June, 1974 (2021)
    North West Water Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10638 | 1256 | 2013-02-26 14:44:54 | 10638 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the first report from the Eden Fisheries Advisory Committee meeting, which was held on the 4th June 1974. The report includes sections on fishery byelaws, estimates for the anticipated income and expenditure on fisheries for the current year, licence duties, the Nursery Stream Project and Holmewrangle hatchery. The section on the Nursery Stream Project includes the reasons for undertaking the project, and the details of the project. The section on the Holmewrangle hatchery looks at low survival rates and reasons for mortality for 1973/1974.The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Eden Catchment ; Fishery Advisory Committee ; Inland waters ; Rivers ; River fisheries ; Freshwater fish ; Water quality ; Fishery regulations ; Licensing ; Fishery management ; Hatcheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 21
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  • 7
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    Regional Fisheries Advisory Committee 29th April, 1974 (2021)
    North West Water Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10636 | 1256 | 2013-02-26 14:45:15 | 10636 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the first report from the Regional Fisheries Advisory Committee meeting, which was held on the 29th April, 1974. The report looks at sections on estimates for the anticipated income and expenditure on fisheries for the current year, the structure of fisheries in the region, and a list of the fisheries in the ownership of the North West Water Authority. Also covered is information relating to fishery and sea fishery byelaws, license duties and a summary of the current activity and the future plans for the committee.The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; North West ; Fishery Advisory Committee ; Inland waters ; Rivers ; River fisheries ; Freshwater fish ; Fishery regulations ; Licensing ; Fishery management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 20
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  • 8
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    South Lancashire Advisory Committee 10th June, 1974 (2021)
    North West Water Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10640 | 1256 | 2013-02-26 14:44:33 | 10640 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This is the first report from the South Lancashire Fisheries Advisory Committee meeting, which was held on the 10th June 1974. The report includes sections on fishery byelaws, estimates for the anticipated income and expenditure on fisheries for the current year, and information includeing the aims of a report entitled 'Taking Stock', which looked at migratory fish in England and Wales. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; South Lancashire ; Fishery Advisory Committee ; Inland waters ; Rivers ; River fisheries ; Freshwater fish ; Water quality ; Fishery regulations ; Fishery management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 13
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  • 9
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    A hydrological assessment of the Delamere Sandsheets and environs (2021)
    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)
    Details
    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
    Format: 36
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  • 10
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    South Lancashire Fisheries Advisory Committee 15th October, 1975. (2021)
    North West Water Authority | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10652 | 1256 | 2013-02-26 14:35:17 | 10652 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-28
    Description: This is the report from the South Lancashire Fisheries Advisory Committee meeting, which was held on the 15th October 1975. The report contains sections on planning study for the post 1981 period, reports on fisheries activities, land drainage representation on local committees, proposed new byelaws and fishing licence duties. The section on fisheries activities are reported by area fisheries officers and looks at poaching, Langcliffe and Middleton hatcheries management, number/causes of fish mortalities and biological work carried on Colne Water and Lancaster Canal.The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; South Lancashire ; Fishery Advisory Committee ; Inland waters ; Rivers ; River fisheries ; Freshwater fish ; Migratory species ; Fishery management ; Water management ; Fishery regulations ; Licensing ; Mortality ; Fish passes ; Population density
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 15
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