期刊
JOURNAL OF FISH BIOLOGY
卷 86, 期 4, 页码 1286-1304出版社
WILEY
DOI: 10.1111/jfb.12637
关键词
EFA; egg composition; fatty acids; larval performance; maternal investment
资金
- Texas Sea Grant
- Guy Harvey Ocean Foundation
Larval red drum Sciaenops ocellatus survival, turning rate, routine swimming speed, escape response latency and escape response distance were significantly correlated with essential fatty-acid (EFA) concentrations in eggs. Of the five traits that varied with egg EFA content, two (escape response latency and routine swimming speed) were significantly different when larvae were fed enriched diets compared with the low fatty-acid diet, indicating that the larval diet can compensate for some imbalances in egg composition. Turning rate during routine swimming and escape response distance, however, did not change when larvae predicted to have low performance (based on egg composition) were fed an enriched diet, indicating that these effects of egg composition may be irreversible. Escape response distances and survival rates of larvae predicted to perform well (based on egg composition) and fed highly enriched diets were lower than expected, suggesting that high levels of EFA intake can be detrimental. Altogether, these results suggest that both maternal diet, which is responsible for egg EFA composition, and larval diet may play a role in larval survivorship and recruitment. (C) 2015 The Fisheries Society of the British Isles
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