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Modeling fish growth and reproduction in the context of the Dynamic Energy Budget theory to predict environmental impact on anchovy spawning duration ArchiMer
Pecquerie, Laure; Petitgas, Pierre; Kooijman, Sebastiaan.
Spawning location and timing are critical for understanding fish larval survival. The impact of a changing environment on spawning patterns is, however, poorly understood. A novel approach is to consider the impact of the environment on individual life histories and subsequent spawnings. In the present work, we extend the Dynamic Energy Budget (DEB) theory to investigate how environment variability impacts the spawning timing and duration of a multiple-batch spawning species. The model is successfully applied to reproduce the growth and reproduction of anchovy (Engraulis encrasicolus) in the Bay of Biscay. The model captures realistically the start and ending of the spawning season, including the timing of the spawning events, and the change in egg number...
Tipo: Text Palavras-chave: Bay of Biscay; Engraulis encrasicolus; Starvation; Environmental conditions; Condition factor; Multiple Batch Spawning; Reproductive Biology; DEB Theory.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6769.pdf
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