Otolith microchemistry of the conger eel, Conger myriaster

被引:9
作者
Arai, T [1 ]
Ikemoto, T
Kunito, T
Tanabe, S
Miyazaki, N
机构
[1] Univ Tokyo, Ocean Res Inst, Otsuchi Marine Res Ctr, Otsuchi, Iwate 0281102, Japan
[2] Ehime Univ, Ctr Marine Environm Studies, Matsuyama, Ehime 7908566, Japan
关键词
D O I
10.1017/S0025315402005490
中图分类号
Q17 [水生生物学];
学科分类号
071004 [水生生物学];
摘要
dElemental 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 concentration, were determined. Strontium content and Sr:Ca ratios in the otolith fluctuated during the life history transect at 100 to 200 mum 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 factor such as metamorphosis in the early developmental stage in the conger eel.
引用
收藏
页码:303 / 305
页数:3
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