Mann, R.H.K. and Mills, C.A. (1986) Biological and climatic influences on the dace Leuciscus leuciscus in a southern chalk-stream. In: Fifty-forth annual report for the year ended 31st March 1986. Ambleside, UK, Freshwater Biological Association, pp. 83-96. (Annual Report, Freshwater Biological Association, Ambleside)
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Abstract
The dace, Leuciscus leuciscus (L.) is an important cyprinid in terms of population biomass in chalk streams of southern England. Dace recruitment has been shown to vary widely from year to year and it is thought that this variation is largely as a result of the influence of abiotic factors, chiefly water temperature. From 1968 to 1981 there was a thirteen-fold difference in the year class structure index between the minimum index (0.25 in 1972) and the maximum (3.21 in 1976). The problems of such variation, especially those that could ensue from a succession of poor year-classes, are offset by the spread of reproductive effort by each female over several years.
| Item Type: | Book Section | ||||||
|---|---|---|---|---|---|---|---|
| Title: | Biological and climatic influences on the dace Leuciscus leuciscus in a southern chalk-stream | ||||||
| Personal Creator/Author: |
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| Title of Book: | Fifty-forth annual report for the year ended 31st March 1986 | ||||||
| Refereed: | No | ||||||
| Series Name: | Annual Report, Freshwater Biological Association, Ambleside | ||||||
| Page Range: | pp. 83-96 | ||||||
| Date: | 1986 | ||||||
| Publisher: | Freshwater Biological Association | ||||||
| Place of Publication: | Ambleside, UK | ||||||
| Issuing Agency: | Freshwater Biological Association | ||||||
| Uncontrolled Keywords: | Abiotic factors; Age composition; Annual variations; Climate; Fecundity; Fish eggs; Fish larvae; Freshwater fish; Life history; Mortality; Population dynamics; Predation; Recruitment; Sexual reproduction; Survivial; Water temperature; Cyprinidae; Leuciscus leuciscus; England; Dorset; Chalk streams; Annual report | ||||||
| Subjects: | Biology Chemistry Fisheries | ||||||
| Item ID: | 5247 | ||||||
| Depositing User: | Mrs Christine Davey | ||||||
| Date Deposited: | 10 May 2011 18:58 | ||||||
| Last Modified: | 29 Sep 2011 17:08 | ||||||
| URI: | http://aquaticcommons.org/id/eprint/5247 |
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