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NIPPON SUISAN GAKKAISHI
Article . 1989 . Peer-reviewed
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A modification of DeLury method to abalone fishery.

Authors: Nobuo Hirayama; Sakutaro Yamada; Hiromu Kikuchi; Jun-ichi Yamada;

A modification of DeLury method to abalone fishery.

Abstract

Analysis using a modified DeLury model to represent daily variation of the catchability coefficient was undertaken. The data utilized were from abalone Haliotis discus hannai fisheryof Kisakata, Akita prefecture in July 1985 and 1986.A multiplier for the catchability coefficient was expressed in a nonlinear term based on the ratio of operating hours spent for catching abalone to the total fishing hours. The exponent of the nonlinear term, additional parameter to DeLury model, was evaluated by mutliple regression coefficient. Results of the estimates were as follows; abundance is about 3-4t, the catchability coefficient is about 3×10-4h-1, and the daily fishing rate is 3-4%.

Subjects by Vocabulary

Microsoft Academic Graph classification: Fishery Abalone Linear regression Fishing Haliotis discus Biology biology.organism_classification

Keywords

Aquatic Science

2) ¬“‡”Ž,΋´Šì”üŽq:“ŒŠC…Œ¤•ñ, 20 (1985).

3) D. O. Braaten: J. Fish. 339-355 (1969).

4) W. E. Ricker: Bull. Fish. 119, 300 (1958).

5) C. W. Clark: Bioeconomic Fisheries Management, John Modeling

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    5
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Average
Average
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