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Trout and Perch Populations at Loch Leven, Kinross

Published online by Cambridge University Press:  05 December 2011

J. E. Thorpe
J. E. Thorpe
Affiliation:
Freshwater Fisheries Laboratory, Pitlochry.
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Synopsis

The annual production of trout in Loch Leven lies between 2·2 and 3·9 g(wet).m−2, and of perch between 5·1 and 67·4 g(wet).m−2. Between June and September adult trout consumed 3·7 times their own wet body weight of food, and adult perch 6·58 times, the daily intake decreasing from the beginning to the end of the period. The principal dietary components of the two species were the same, Asellus and perch fry being quantitatively the most important. Comparisons are made between field estimates of food consumption, laboratory estimates of food requirement, and field estimates of food production.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 74 , 1974 , pp. 295 - 313
Copyright
Copyright © Royal Society of Edinburgh 1974

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References

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