A LIFE TABLE FOR POWAN, COREGONUS-LAVARETUS (L) IN LOCH LOMOND, SCOTLAND - A BASIS FOR CONSERVATION STRATEGY

被引：11

作者：

BROWN, EAR

FINNIGAN, N

SCOTT, DBC

机构：

[1] Department of Biology and Preclinical Medicine, University of St. Andrews, Fife

来源：

AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS | 1991年 / 1卷 / 02期

关键词：

D O I：

10.1002/aqc.3270010207

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

1. A static life table for Loch Lomond powan, Coregonus lavaretus (L.) has been constructed from data obtained during 1980-1988, as a basis for monitoring any changes in the population which may ensue from exploitation of the Loch. 2. Mortality was 99.95% during the first year of life, and adult mortality highest at 5-6 years. 3. Average fecundity was 20.7 ova mm-1 fork length. 4. Mortality and fecundity have not changed in 25 years. 5. It is not yet possible to assess the effect of the recent introduction of ruffe, Gymnocephalus cernuus (L.) into Loch Lomond, but their effect on recruitment into the vulnerable 0-1 year-class may be critical.

引用

页码：183 / 187

页数：5

共 17 条

[1]

Begon M., Mortimer M., Population Ecology, (1986)

[2]

Brown E.A.R., (1989)

[3]

Brown E.A.R., Scott D.B.C., Anabolic adaptiveness in the two Scottish populations of Coregonus lavaretus (L.) (Salmonidae, Coregoninae), Journal of Fish Biology, Suppl. A, 37, pp. 251-253, (1990)

[4]

Hamilton J.D., Recent human influences on the ecology of Loch Lomond, Scotland, Verhandlungen der Internationalen Vereinigung für theoretische und angewandte Limnologie, 23, pp. 403-413, (1988)

[5]

Hutchinson G.E., An Introduction to Population Ecology, (1980)

[6]

Lamond H., Loch Lomond. A Study in Angling Conditions, (1931)

[7]

Lowe V.P.W., Population dynamics of the red deer (Cervus elaphus L.) on Rhum, The Journal of Animal Ecology, 38, pp. 425-427, (1969)

[8]

Maitland P.S., The reproduction and fecundity of the powan, Coregonus clupeoides Lacépède, in Loch Lomond, Scotland, Proceedings of the Royal Society of Edinburgh (B), 70, pp. 233-264, (1969)

[9]

Maitland P.S., Loch Lomond: man's effects on the salmonid community, Journal of the Fisheries Research Board of Canada, 29, pp. 849-860, (1972)

[10]

Maitland P.S., Scarring of whitefish (Coregonus lavaretus) by European river lamprey (Lampetra fluviatilis) in Loch Lomond, Scotland, Canadian Journal of Fisheries and Aquatic Sciences, 37, pp. 1981-1988, (1980)

← 1 2 →