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- 真子 渺
- 西海区水産研究所
書誌事項
- タイトル別名
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- A Consideration on the Density Index of Fish Population
- サカナ ノ セイソク ミツド シスウ ニ ツイテ ノ コウサツ
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For estimating the density of fish population, catch per unit of effort is commonly used. But in order to allow such a method, distribution pattern of fish should be researched.<br> In a fishing ground, distribution of individuals and schools would be not random but contagious distribution. Frequency distribution of catch of many species is represented well by PÓLYA-EGGENBERGER type. And by transformation<br> x'=k-1/2sinh-1(kx)1/2<br> where k is constant, the standard deviation approaches a constant without regard to the mean. By this method, we can compare the groups with each other or examine the correlation of them.<br> In this examination, catch of th ?? demarsal fish in the East China and the Yellow Seas was used.
収録刊行物
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- 日本水産学会誌
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日本水産学会誌 21 (2), 67-72, 1955
公益社団法人 日本水産学会
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詳細情報 詳細情報について
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- CRID
- 1390001206414530176
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- NII論文ID
- 130000915366
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- NII書誌ID
- AN00193422
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- ISSN
- 1349998X
- 00215392
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- NDL書誌ID
- 10054201
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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