MISC

2007年9月

A lower trophic ecosystem model including iron effects in the Okhotsk Sea

CONTINENTAL SHELF RESEARCH
  • Takeshi Okunishi
  • ,
  • Michio J. Kishi
  • ,
  • Yttkiko Ono
  • ,
  • Toshihiko Yamashita

27
16
開始ページ
2080
終了ページ
2098
記述言語
英語
掲載種別
DOI
10.1016/j.csr.2007.05.007
出版者・発行元
PERGAMON-ELSEVIER SCIENCE LTD

We applied a three-dimensional ecosystem-physical coupled model including iron the effect to the Okhotsk Sea. In order to clarify the sources of iron, four dissolved iron compartments, based on the sources of supply, were added to Kawamiya et al.'s [1995, An ecological-physical coupled model applied to Station Papa. Journal of Oceanography, 51, 635-664] model (KKYS) to create our ecosystem model (KKYS-Fe). We hypothesized that four processes supply iron to sea water: atmospheric loadings from Northeastern Asia, input from the Amur River, dissolution from sediments and regeneration by zooplankton and bacteria. We simulated one year, from I January 2001 to 31 December 2001, using both KKYS-Fe and KKYS. KKYS could not reproduce the surface nitrate distribution after the spring bloom, whereas KKYS-Fe agreed well with observations in the northwestern Pacific because it includes iron limitation of phytoplankton growth. During the spring bloom, the main source of iron at the sea surface is from the atmosphere. The contribution of riverine iron to the total iron utilized for primary production is small in the Okhotsk Sea. Atmospheric deposition, the iron flux from sediment and regeneration of iron in the water column play important roles in maintaining high primary production in the Okhotsk Sea.
(c) 2007 Elsevier Ltd. All rights reserved.

Web of Science ® 被引用回数 : 8

リンク情報
DOI
https://doi.org/10.1016/j.csr.2007.05.007
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000250285100002&DestApp=WOS_CPL

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