Use this URL to cite or link to this record in EThOS:
Title: Sea trout (Salmo trutta L.) : studies of the River Tywi, South Wales
Author: Evans, Dafydd Martin
ISNI:       0000 0001 3451 2678
Awarding Body: University of Hull
Current Institution: University of Hull
Date of Award: 1994
Availability of Full Text:
Access from EThOS:
Access from Institution:
The biological characteristics of the adult sea trout stock in the River Tywi were examined between 1988 and 1992 by sampling catches from a temporary main-river trap, and the commercial seine, commercial coracle and recreational rod fisheries. Radio tracking of adults during the spawning season investigated behavioural activities and their possible effects on stock characteristics. Catch effort data from angler log books assessed the annual performance of the rod fishery between 1990 and 1993. The effects of ameliorating the impact of acidification on water quality, benthic macro-invertebrates and juvenile salmonids, through reservoir liming, was studied.
Supervisor: Clarke, D. R. K. ; Cowx, Ian G. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Aquaculture Fisheries Zoology