NIPPON SUISAN GAKKAISHI
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
Studies on the Stock of Hokaido Herring
III How many Herrings are produced per Individual
T. KAWANA
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1950 Volume 16 Issue 5 Pages 175-176

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Abstract

The ratio of the number of the young herrings to that of their parents (calculated by the. study of age-composition) is 0.05-4.3, the mean value being ca. 1. Even in those years when plentiful year-classes were produced, the ratio is 2-3. If the number of the parents diminishes, the ratio becomes larger.

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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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