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On the Odds of Catching Fish with Angling Gear
Author(s) -
Deriso Richard B.,
Parma Ana M.
Publication year - 1987
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1987)116<244:otoocf>2.0.co;2
Subject(s) - odds , fishing , fishery , fish <actinopterygii> , business , biology , mathematics , statistics , logistic regression
We have developed a probabilistic theory of angling for fish by which specific stochastic models of fishing are derived for the situation where encounter of baits (lures) by fish is random and where the fish are randomly distributed on the fishing ground. We have also developed maximum likelihood and moment estimators of population density which support the use of catch per unit soak time as an index of abundance. Methodology is presented for fishing depletion experiments and then applied to experimental data obtained from multispecies fishing near the Mariana Islands, western Pacific Ocean. We show that abundance estimates obtained with our methodology differ significantly (P < 0.05) from those obtained with a standard Leslie depletion morphology.