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Title
  • Environmental factors which affect growth of Japanese common squid, Todarodes pacificus, analyzed by a bioenergetics model coupled with a lower trophic ecosystem model
Creator

Kishi, Michio J.

Nakajima, Kazuto

Fujii, Masahiko

Hashioka, Taketo

Subject
  • Other NEMURO
  • Other Bioenergetics model
  • Other Todarodes pacificus
  • Other Japanese common squid
  • NDC 663
Description
Other
  • Bioenergetics model is applied to Japanese common squid, Todarodes pacificus. The temporal change of wet weight of common squid, which migrates in the Sea of Japan, is simulated. The time dependent horizontal distribution of prey is calculated a priori by 3-D coupled physical–biological model. The biological model NEMURO (North Pacific Ecosystem Model for Understanding Regional Oceanography) is used to simulate the lower-trophic ecosystem including three kinds of zooplankton biomass two of which is used as prey of common squid. A bioenergetics model reproduced appropriate growth curve of common squid, migrating in the North Pacific and the Sea of Japan. The results show that the wet weight of common squid in the northern Sea of Japan is heavier than that migrating in the central Sea of Japan, because prey density of the northern Sea of Japan is higher than that of the central Sea of Japan. We also investigate the wet weight anomaly for a global warming scenario. In this case, wet weight of common squid decreases because water temperature exceeds the optimum temperature for common squid. This result indicates that migration route and spawning area of common squid might change with global warming.
PublisherElsevier
Date Issued 2009-09
Languageeng
NIItypejournal article
VersiontypeAM
Identifier URI http://hdl.handle.net/2115/39739
Relation
  • isIdenticalTo DOI https://doi.org/10.1016/j.jmarsys.2009.02.012
Journal
    • NCID AA10775411
    • ISSN 0924-7963
    • Journal of Marine Systems
    78(2), 278-287
File
Oaidate2017-11-14T07:41:46Z