期刊
ECOLOGY OF FRESHWATER FISH
卷 22, 期 2, 页码 317-321出版社
WILEY
DOI: 10.1111/eff.12019
关键词
egg size; fecundity; early development; maternal influences; trade-off
资金
- NERC
- FSBI
- University of Glasgow
- ORSAS award
- NERC [NE/H012125/1] Funding Source: UKRI
- Natural Environment Research Council [NE/H012125/1] Funding Source: researchfish
We investigated the independent effects of age at smolting and body condition at the time of spawning on egg production by female Atlantic salmon (Salmo salar). For a given body size, female salmon that had smolted as juveniles after 2years in fresh water produced smaller, more numerous eggs than females that smolted 1year later. Furthermore, fecundity (but not egg size) was related positively to maternal body condition at spawning. Given that age at smolting is closely related to juvenile growth rate; results from this study suggest that conditions experienced by female Atlantic salmon during both early life and adulthood have implications for the size and number of eggs that they produce.
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