Sea trout (Salmo trutta L.) : studies of the River Twyi, South Wales
Evans, Dafydd Martin
Aquaculture; Fisheries; Zoology
Thesis or dissertation
- © 1994 Dafydd Martin Evans. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.
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.
- Department of Applied Biology, The University of Hull
- Clarke, D. R. K.; Cowx, I. G. (Ian G.)
- Qualification level
- Qualification name
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