Journal
JOURNAL OF FISH BIOLOGY
Volume 74, Issue 10, Pages 2279-2298Publisher
WILEY
DOI: 10.1111/j.1095-8649.2009.02235.x
Keywords
cohort; freshwater fish; year-class strength
Categories
Funding
- Natural Environment Research Council and the Environment Agency
- Natural Environment Research Council [ceh010022] Funding Source: researchfish
Ask authors/readers for more resources
Estimated pike Esox lucius recruitment varied by a factor of 16 for females from 1944 to 1991 and by a factor of 27 for males from 1943 to 1990 in Windermere, a temperate, mesotrophic U. K. lake. No significant stock-recruitment relationships were found, but analysis with general additive models (GAMs) revealed that early autumnal water temperature, strength and direction of the North Atlantic Oscillation displacement (corresponding to different climatic conditions in winter) and zooplankton abundance but above all, late summer water temperature were important explanatory variables over the entire time series. Female recruitment was also influenced by young-of-the-year winter temperature. There was no evidence that perch Perca fluviatilis year-class strength, lake level or the summer position of the Gulf Stream influenced recruitment. The fitted models explained up to c. 65% of the overall observed variation between years. (C) 2009 The Authors Journal compilation (C) 2009 The Fisheries Society of the British Isles
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available