partial recruitment

partial recruitment
the degree to which a year class has joined the fishable stock. When a year class is young, only some of its fish are big enough to be caught, so it is partly but not fully recruited. Very young fish are not caught at all and have a partial recruitment of zero; when a year class is half as vulnerable to fishing as it will be when fully recruited, its partial recruitment is 0.5 or 50%

Dictionary of ichthyology. 2009.

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