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Chemical composition of three dominant myctophid fish, Diaphus theta, Stenobrachius leucopsarus, and S. nannochir, in the subarctic and transition waters of the western North Pacific

Published online by Cambridge University Press:  25 June 2008

Masatoshi Moku  and
Kouichi Kawaguchi
Masatoshi Moku*
Affiliation:
National Fisheries University, 2-7-1 Nagata-honmachi, Shimonoseki, Yamaguchi 759-6595, Japan
Kouichi Kawaguchi
Affiliation:
Ocean Research Institute, University of Tokyo, 1-15-1 Minamidai, Nakano-ku, Tokyo 164-8639, Japan
*
Correspondence should be addressed to: Masatoshi MokuNational Fisheries University2-7-1 Nagata-honmachi, Shimonoseki, Yamaguchi 759-6595Japan email: [email protected]
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Abstract

Water, carbon, and nitrogen contents were analysed in both juvenile and adult specimens of Diaphus theta, Stenobrachius leucopsarus, and S. nannochir, which are the dominant myctophid species in the subarctic and transition waters of the North Pacific. The relationship between body length and dry weight, carbon content, and nitrogen content of these three species were expressed as double logarithmic equations. The differences in chemical content among the different size-classes of each species may be associated with reproductive biology.

Keywords

body lengthcarbon and nitrogen cyclesmyctophid fishoceanic ecosystems
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 4 , August 2008 , pp. 843 - 846
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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