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- Title
The variability in numbers of perch Perca fluviatilis L. caught in traps.
- Authors
Bagenal, T. B.
- Abstract
The variability in the catch of perch traps set in Windermere over the period 1955–70 has been analysed. Altogether 2690 catches in four series have been treated by analyses of variance after a logarithmic transformation. A representative value of the between traps variance from all sources of variation has been used to estimate the reliability of the mean catches based on different numbers of traps. It is shown that many traps are needed to obtain consistent results.
- Subjects
VARIATION in fishes; EUROPEAN perch; PERCA; FISHES; AQUATIC animals; FRESHWATER biology; AQUATIC biology; AQUATIC sciences
- Publication
Freshwater Biology, 1972, Vol 2, Issue 1, p27
- ISSN
0046-5070
- Publication type
Article
- DOI
10.1111/j.1365-2427.1972.tb01577.x