Catchability

[theangler]

"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. (For fractions taken of various portions of the stock, see ""vulnerability."") Also called; catchability coeificient, *force of fishing mortality"
[signature]