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University of Hull
Sea trout (Salmo trutta L.) : studies of the River Twyi, South Wales
Abstract
dc:description.abstractThe 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.
Degree
thesis:*- Name dc:type.qualificationname
- PhD
- Level dc:type.qualificationlevel
- Doctoral
- Grantor dc:publisher.institution
- University of Hull
- Year dc:date.issued
- 1994
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Evans, Dafydd Martin
- Advisors dc:contributor.advisor
-
- Clarke, D. R. K.
- Cowx, I. G. (Ian G.)
Subjects
dc:subject × 3Rights
- Language dc:language
- en
Identifiers
dc:identifier.*- Identifier
- oai:hull-repository.worktribe.com:4209891
- OAI identifier oai:identifier
- oai:hull-repository.worktribe.com:4209891