Report on the analysis of salmon scale samples returned by anglers on the Rivers Ribble and Hodder

Clifton-Dey , D. and Walsingham, M. (1995) Report on the analysis of salmon scale samples returned by anglers on the Rivers Ribble and Hodder. Preston, UK, National Rivers Authority North West, 31pp. (NRA/NW/FTR/95/11).

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Abstract

Fisheries technical staff from the North West Central Area of the National Rivers Authority (NRA) currently provide a service for the ageing of salmon scales from fish caught by anglers on the Rivers Ribble and Hodder in order to gather information on the biological characteristics of the salmon population on the River Ribble system in terms of weight, freshwater age and sea age. At the beginning of each fishing season, scale envelopes are distributed by the NRA to angling clubs and some individual anglers. Scales taken from salmon caught on the rivers are returned to the NRA Central Area Office by the anglers, or more often, by NRA bailiffs. The age of each fish caught is then determined by the identification and counting of annuli for both the river and sea zones on the scale. Information is provided by the angler on the scale packet concerning the length and weight of the fish caught, and the date, location and method of capture. Both this information and the age of the fish is recorded on a database. These data can be used to investigate the distribution, and exploitation patterns of the different age classes of the salmon stock within the river system. This report is principally concerned with the scale samples received in 1994, although comparison is also made with samples from 1993 and 1992. References to data will all relate to that received in 1994 unless an alternate year is stated.

Item Type: Monograph or Serial Issue
Title: Report on the analysis of salmon scale samples returned by anglers on the Rivers Ribble and Hodder
Personal Creator/Author:
CreatorsEmail
Clifton-Dey , D.
Walsingham, M.
Number of Pages: 31
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; Ribble Catchment; Salmo salar; Salmo trutta; Rivers; River fisheries; Salmon fisheries; Fishery surveys; Scales: Scale reading; Angling
Subjects: Ecology
Fisheries
Limnology
Item ID: 7998
Depositing User: Hardy B Schwamm
Date Deposited: 17 Feb 2012 22:03
Last Modified: 17 Feb 2012 22:03
Related URLs:
URI: http://aquaticcommons.org/id/eprint/7998

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