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Otolith microchemistry of the conger eel, Conger myriaster

Published online by Cambridge University Press:  30 September 2002

Takaomi Arai ,
Tokutaka Ikemoto ,
Takashi Kunito ,
Shinsuke Tanabe  and
Nobuyuki Miyazaki
Takaomi Arai
Affiliation:
Otsuchi Marine Research Center, Ocean Research Institute, University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
Tokutaka Ikemoto
Affiliation:
Center for Marine Environmental Studies, Ehime University, 3-5-7, Tarumi, Matsuyama, Ehime 790-8566, Japan
Takashi Kunito
Affiliation:
Center for Marine Environmental Studies, Ehime University, 3-5-7, Tarumi, Matsuyama, Ehime 790-8566, Japan
Shinsuke Tanabe
Affiliation:
Center for Marine Environmental Studies, Ehime University, 3-5-7, Tarumi, Matsuyama, Ehime 790-8566, Japan
Nobuyuki Miyazaki
Affiliation:
Otsuchi Marine Research Center, Ocean Research Institute, University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
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Abstract

Elemental composition and ontogenic change patterns of Sr and Ca were examined in conger eel, Conger myriaster, otoliths. Accumulations of the major elements of seawater, K, Mg, and Na, into otoliths were smaller than the accumulations of 19 other minor elements whose concentrations were determined. Strontium content and Sr:Ca ratios in the otolith fluctuated during the life history transect at 100 to 200 μm from the core of the otolith, indicating a period of metamorphosis. Changes in Sr content and Sr:Ca ratios may be associated with internal physiological factors such as metamorphosis in the early developmental stage in the conger eel.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 82 , Issue 2 , April 2002 , pp. 303 - 305
Copyright
2002 Marine Biological Association of the United Kingdom

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