catchability coefficient

См. также в других словарях:

• 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

• catchability — The fraction of a fish stock which is caught by a defined unit of the fishing effort. When the unit is small enough that it catches only a small part of the stock 0.01 or less it can be used as an instantaneous rate in computing population change …   Fisheries — dictionary

• catchability — The fraction of a fish stock which is caught by a defined unit of the fishing effort. When the unit is small enough that it catches only a small part of the stock 0.01 or less it can be used as an instantaneous rate in computing population change …   Fisheries — dictionary

• catchability — the extent to which a stock is susceptible to fishing, the part of a stock that is caught over a defined unit of time or fishing effort; quantitatively, the proportion of the stock removed by a defined unit of fishing effort. In pelagic fishes,… …   Dictionary of ichthyology

• EconMult — is a general fleet model to be used in fisheries modelling. EconMult has been developed since 1991 as a part of the Multispecies management programme by the Norwegian Research Council at the Norwegian College of Fishery Science (University of… …   Wikipedia

• 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

• 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

• 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

• Q — Quaternary geological period abbreviation for the fraction of a fish stock which is caught by a defined unit of the fishing effort. When the unit is small enough that it catches only a small part of the stock (0.01 or less) it can be used as an… …   Dictionary of ichthyology