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  • Limnology  (30)
  • Aircraft Design, Testing and Performance
  • Aircraft Stability and Control
  • Analytical Chemistry and Spectroscopy
  • Animals
  • Cell & Developmental Biology
  • General Chemistry
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  • National Rivers Authority North West  (30)
  • 2020-2022  (30)
  • 1975-1979
  • 1945-1949
Collection
Keywords
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  • 2020-2022  (30)
  • 1975-1979
  • 1945-1949
Year
  • 1
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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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  • 2
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    The Kent estuary 1992 surveys. Summary of results (2021)
    National Rivers Authority North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/11099 | 1256 | 2013-04-03 15:27:43 | 11099 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-28
    Description: This is the Kent estuary 1992 surveys: Summary of results produced by the National Rivers Authority in 1993. The report summarises routine and baseline water quality surveys carried out on the Kent estuary during 1992. Baseline surveys are designed to respond to regional, national, and European requirements. During 1992 baseline surveys were carried out in June and December. Unfortunately, in June, samples could only be taken from stations 3, 7 and 8. For ease of interpretation the results have been presented in graph form, including the maximum and minimum parameter concentration and the appropriate Environmental Quality Standards (EQS). The parameters measured in this survey were physical parameters (temperature, BOD, dissolved oxygen, Ph, salinity, conductivity); nutrients (ammonia, phosphate, and nitrate); metals (Mercury, Nickel, Arsenic, Cadmium, Chromium, Cooper, Boron, and Zinc) and organic compounds.
    Description: Environment Agency Archives North West
    Description: + tables, figures and appendices
    Keywords: Ecology ; Limnology ; Management ; England ; Kent estuary ; Arnside ; Estuary ; Coastal waters ; Environmental survey ; Water quality ; Environmental assessment ; Bathing waters ; EQS
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 2
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  • 3
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    River Ehen and Calder sub catchment Management Plan (2021)
    National Rivers Authority North West | UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10955 | 1256 | 2013-03-26 13:56:21 | 10955 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the River Ehen and Calder sub catchment management plan: Consultation Report September 1993 produced by the National Rivers Authority (NRA) North West Region in 1993. The report focuses on the management plan of both River Catchments Ehen and Calder, in North West England, UK. The Catchment Management Plan (C.M.P.) enabled the NRA to summarise the status of the catchment, identify the main issues and present its vision of the future. It provides a strategic policy framework for its Management and influences decision making leading to improvements in the water environment. The report contains sections on Description of Catchment, Catchment uses by NRA function, Target and objectives of the plan, Summary of Issues and Catchment Issues. The section on description of Catchment includes a general description, Transport, Geology, major services, summary of key details, area, topography, administrative details, main towns and population, water quality Sewage Treatment Works Trade effluent discharges, Water Resources, flood defence and land drainage and Fisheries.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Ehen ; Calder ; Inland waters ; Coastal waters ; Rivers ; Freshwater lakes ; Freshwater pollution ; Migratory species ; Fish stocks ; Fisheries ; Nature conservation ; Water management ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 58
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  • 4
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    Central area fisheries annual report 1994 (2021)
    National Rivers Authority North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8509 | 1256 | 2012-12-21 15:37:01 | 8509 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-03
    Description: The purpose of this report is to record key events/data and to outline the activities of the NRA Central Area Fisheries Function during 1994. The Rivers looked at include the Ribble, Lune, Hodder and Wyre. The issues that the report looks at includes Hydrological and meterological data, catch data for salmon and sea trout, fish kills, and fish stocking. It also lists the Micro-tag returns for 1994 and the six key objectives that the Central Area Fisheries Function has set itself for 1995. The report uses a range of different graphs and tables to display their data.
    Description: Environment Agency Archives North West
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Rivers ; River fisheries ; Coarse fish ; Salmo salar ; Salmo trutta ; Stream flow ; Catch statistics ; Stock assessment ; Fish counters ; licensing
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 49
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  • 5
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    Field validation of the 'Logie' fish counter at Forge weir on the River Lune, 1992 (2021)
    National Rivers Authority North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8532 | 1256 | 2012-12-21 15:13:52 | 8532 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-03
    Description: The stock assessment task group report (1991) mentions that fish counters could play a key role in providing data on the size of the adult stock, and in particular the migratory salmonid stock. This report assesses the performance of the 'logie' fish counter at Forge Weir on the River Lune. Using video surveillance, a total of 1137 hours time lapse and 15 hours real time were used for validation purposes. This report looks at materials and methods, counting accuracy, sizing ability and environmental conditions, performance across the electrode array and salmonid swimming speed.
    Description: Environment Agency Archives North West
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Lune Catchment ; River Fisheries ; Fish counters ; Migratory species ; Salmon fisheries ; Environmental condtions
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 54
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  • 6
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    The calibration of a semi-quantitative approach to fish stock assessment in the North West Region of the NRA (2021)
    National Rivers Authority North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8531 | 1256 | 2012-12-21 15:14:38 | 8531
    Details
    Publication Date: 2021-07-03
    Description: (1) A total of 45 sites was sampled, each being fished usingthe semi-quantitative and quantitative techniques.(2) A significant relationship existed between thesemi-quantitative and Quantitative results for all agegroups of salmonids (R2 83.4% to 96.1%, p 〈 0.0001).(3) The results from each site were categorised according toan existing classification system for quantitative andsemi-quantitative data. The semi-quantitative component ofthis system was modified using the results of thisinvestigation. The degree of error associated with sitesclassified semi-quantitatively was found to be slightlyless when using the modified system for 0+ salmon, 〉 0+salmon and 0+ trout, ranging from 10.5% to 30%.(4) Insufficient data points were available for the analysisof coarse fish data.
    Description: Environment Agency Archives North West
    Description: + Appendices
    Keywords: Fisheries ; Limnology ; England ; Cumbria ; Inland waters ; Freshwater fish ; Stock assessment ; Fish populations ; Environmental assessment ; Electric fishing
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 6
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  • 7
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    Summary of fishery statistics 1991 (2021)
    National Rivers Authority North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8365 | 1256 | 2012-03-04 21:55:18 | 8365 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-02
    Description: This fisheries report summarises developments of the year 1991 in the region of the North West Water Authority. It provides catch statistics, rod and line and commercial catches for salmon and sea trout, fish culture and hatchery operations, restocking with trout and freshwater fish, upstream fish movement recorded at authority fish counters, counts of salmon and sea trout spawning redds, fish mortalities, licences issued, and prosecutions. Among the streams that are covered in the report are the River Lune, River Kent, River Leven, River Duddon, River Ribble, River Wyre, River Derwent and River Esk.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; England ; Cumbria ; Lancashire ; Inland fisheries ; Fish catch statistics ; Angling ; Stock assessment ; Licensing ; Fishing mortality ; Redds ; Salmonid fisheries ; Migratory species ; Hatcheries ; Stocking (organisms)
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 41
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  • 8
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    River Wyre - a migratory salmonid river (2021)
    National Rivers Authority North West
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8500 | 1256 | 2012-12-22 13:39:02 | 8500 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-07-03
    Description: This report has been prepared in response to a request from the National Rivers Authority. It produces a broad assessment of the River Wyre as a migratory salmonid river based on a site visit and the documentation provided, and looks at objectives of the Wyre salmon and sea trout restoration group. It also looks at ways for habitat improvement and recommends other possible means of fisheries management development for the River Wyre.
    Description: Environment Agency Archives North West
    Description: + 15 plates
    Keywords: Ecology ; Environment ; Limnology ; England ; Wyre Catchment ; River fisheries ; Habitat improvement ; Migratory species ; spawning ; Salmo salar ; Salmo trutta ; Water quality
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 23
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  • 9
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    The River Lune fact file (2021)
    National Rivers Authority North West | Warrington, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/7989 | 1256 | 2012-03-06 12:56:55 | 7989 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-27
    Description: This document provides a brief introduction to the River Lune catchment and the role that the National Rivers Authority plays in catchment management.Included are a map of the catchment and short introductions to fisheries and characteristics of the catchment.
    Description: Environment Agency Archives North West
    Description: No date on publication, date given is estimated guess.
    Keywords: Conservation ; Environment ; Limnology ; England ; Lune Catchment ; Inland fisheries ; Catchment area ; Fishery management ; Nature conservation
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 7
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  • 10
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    Report on the 1992 stock assessment of the Wyre catchment (2021)
    National Rivers Authority North West | Preston, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/8042 | 1256 | 2012-02-22 15:08:12 | 8042 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-28
    Description: The aim of this study was to assess the status of the juvenile salmonid and coarse fish populations of the Wyre catchment. Emphasis was placed on an examination of the distribution of spawning and nursery areas for salmonids within the study area and an assessment of the status of juvenile salmonid stocks. The species distribution and spawning areas for other fish species were also identified where possible and the status of the Wyre coarse fishery, downstream of Churchtown Weir, assessed. This report examines the results of stock assessment surveys carried out in the Wyre catchment between 2/06/92 and 11/08/92. Forty-six sites were surveyed from Tarnbrook Wyre (SD. 598577) and Marshaw Wyre (SD. 614541) downstream to St Michaels (SD. 465411). Flow, habitat and in-river obstructions have been shown to affect juvenile salmonid densities. A habitat description is provided for each site studied during the course of this study.
    Description: Environment Agency Archives North West
    Keywords: Ecology ; Fisheries ; Limnology ; England ; Wyre Catchment ; Salmo salar ; Salmo trutta ; Rivers ; River fisheries ; Salmon fisheries ; Fishery surveys ; Stock assessment ; Distribution ; Population number ; Length frequency
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 133
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