Report on the 1994 juvenile salmon stocking study of Foxhouses and Grizedale Becks, River Wyre

Walsingham, M.V. and Clifton-Dey , D. (1995) Report on the 1994 juvenile salmon stocking study of Foxhouses and Grizedale Becks, River Wyre. Preston, UK, National Rivers Authority North West, 72pp.

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Abstract

The aim of this study was to assess the suitability of Foxhouses and Grizedale Becks as nursery habitat for juvenile salmon. A comprehensive fish stock assessment survey of the Wyre catchment was carried out by the NRA in 1992. This survey found that juvenile salmon were absent from two sites studied in Foxhouses Beck. In one site in Grizedale Beck, 0+ salmon were found at very low densities. Juvenile trout were found in all three sites studied in 1992. On the basis of the results of the 1992 survey, these two becks were stocked in 1994 with 0+ salmon reared from Lune broodstock at the NRA's Witcherwell Hatchery. These salmon were stocked at a known density, following a pre-stocking survey. This report examines and compares the results of the pre-stocking survey consisting of fourteen sites in the two becks, carried out between 12/04/94 and 27/04/94 and a post- stocking survey of six sites, carried out between 12/10/94 and 19/10/94. Flow, habitat and in-river obstructions have been shown to affect juvenile salmonid densities. A habitat description is provided for each site surveyed during the course of this study.

Item Type: Monograph or Serial Issue
Title: Report on the 1994 juvenile salmon stocking study of Foxhouses and Grizedale Becks, River Wyre
Personal Creator/Author:
CreatorsEmail
Walsingham, M.V.
Clifton-Dey , D.
Number of Pages: 72
Date: January 1995
Publisher: National Rivers Authority North West
Place of Publication: Preston, UK
Funders: Environment Agency Archives North West
Contact Email Address: dis@fba.org.uk
Issuing Agency: Environment Agency, UK (Freshwater Biological Association)
Uncontrolled Keywords: England; Wyre Catchment; Salmo salar; Salmo trutta; Rivers; River fisheries; Salmon fisheries; Fishery surveys; Stocking density; Distribution; Population number; Length frequency
Subjects: Ecology
Fisheries
Limnology
Item ID: 8044
Depositing User: Hardy B Schwamm
Date Deposited: 22 Feb 2012 15:07
Last Modified: 22 Feb 2012 15:07
URI: http://aquaticcommons.org/id/eprint/8044

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