NIPPON SUISAN GAKKAISHI
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
Rearing Method and Daily Otolith Ring of Japanese Sardine Larvae
Amane Hayashi, Yoh Yamashita, Kouichi Kawaguchi, Takeo Ishii
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1989 Volume 55 Issue 6 Pages 997-1000

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Abstract

Japanese sardine larvae Sardinops melanostictus hatched out from field-collected eggs, were successfully reared for 30 days with the survival rate of 13% of initial egg number. The relation between rearing days (D) and number of sagittal otolith rings (N) was expressed by the linear regression of N=0.99D-1.88 based on the 31 reared larvae, and the slope is not significantly different from 1(p>0.05). It is proved that ring on the otolith is formed daily. The first ring is formed mainly 3 (2-5) days after hatching which coincides with the first feeding.

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  • Nippon Suisan Gakkaishi is an official journal of the Japanese Society of Fisheries Science written in Japanese only.
    The society publishes an English journal, Fisheries Science, as well, which accepts submissions from non-members of the society over the world. Detailed information is available in http://jsfs.jp/en/journals/fisheries-science.
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