fishing coefficient
rate of exploitation (the fraction, by number, of the fish in a population at a given time, which is caught and killed by man during the year immediately following (= FA/Z when fishing and mortality are concurrent). The term may also be applied to separate parts of the stock distinguished by size, sex, etc. Abbreviated as u or u (Ricker, 1975))

Dictionary of ichthyology. 2009.

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  • fishing intensity — 1) effective fishing effort 2) fishing effort per unit area (must be proportional to fishing mortality through the relation F q(f/A) where (f/A) is the fishing intensity and “q” the catchability coefficient) 3) effectiveness of fishing …   Dictionary of ichthyology

  • catchability coefficient — force of fishing mortality (the extent to which a stock is susceptible to fishing; quantitatively, the proportion of the stock removed by a defined unit of fishing effort. In pelagic fishes, an inverse function of stock biomass. When it is 0.01… …   Dictionary of ichthyology

  • force of fishing mortality — the extent to which a stock is susceptible to fishing; quantitatively, the proportion of the stock removed by a defined unit of fishing effort. In pelagic fishes, an inverse function of stock biomass. When it is 0.01 or less it can be used as an… …   Dictionary of ichthyology

  • rate of exploitation — the fraction, by number, of the fish in a population at a given time, which is caught and killed by man during the year immediately following (= FA/Z when fishing and mortality are concurrent). The term may also be applied to separate parts of… …   Dictionary of ichthyology

  • u — rate of exploitation (the fraction, by number, of the fish in a population at a given time, which is caught and killed by man during the year immediately following (= FA/Z when fishing and mortality are concurrent). The term may also be applied… …   Dictionary of ichthyology

  • rate of exploitation — The fraction, by number, of the fish in a population at a given time, which is caught and killed by man during the year immediately following. The term may also be applied to separate parts of the stock distinguished by size, sex, etc. Also… …   Fisheries — dictionary

  • rate of exploitation — The fraction, by number, of the fish in a population at a given time, which is caught and killed by man during the year immediately following. The term may also be applied to separate parts of the stock distinguished by size, sex, etc. Also… …   Fisheries — dictionary

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