MISC

2007年3月

The importance of spawning season on the growth of Pacific saury: A model-based study using NEMURO.FISH

ECOLOGICAL MODELLING
  • Daiki Mukai
  • ,
  • Michio J. Kishi
  • ,
  • Shin-ichi Ito
  • ,
  • Yutaka Kurita

202
1-2
開始ページ
165
終了ページ
173
記述言語
英語
掲載種別
DOI
10.1016/j.ecolmodel.2006.08.022
出版者・発行元
ELSEVIER SCIENCE BV

NEMURO.FISH was applied to Pacific saury to study the dependence of spawning season on growth. The model was composed of three ocean domains, which corresponded to the Kuroshio, the Oyashio, and the interfrontal zone (mixed water) regions. In these three domains, a lower trophic model (NEMURO) was coupled with a simple physical model, and the time-variation of three zooplankton size classes was input as prey densities into the saury bioenergetics model. Three numerical experiments were examined using this model, which corresponded to three different spawning seasons. Results showed that in the first year winter-spawned saury showed the fastest growth, and spring-spawned showed the slowest growth, while in the second year (time to grow to 120g wet weight), the reverse occurred, i.e., spring-spawned saury showed the fastest growth. This difference in growth, which depends on the spawning season, can explain the bimodal size distribution of early autumn catch data. (c) 2006 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 20

リンク情報
DOI
https://doi.org/10.1016/j.ecolmodel.2006.08.022
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000245311000015&DestApp=WOS_CPL

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