Recruitment (biology)

In biology, especially marine biology, recruitment occurs when juvenile organisms survive to be added to a population, by birth or immigration, usually a stage whereby the organisms are settled and able to be detected by an observer.[1][2]

There are two types of recruitment: closed and open.

In the study of fisheries, recruitment is "the number of fish surviving to enter the fishery or to some life history stage such as settlement or maturity."[3]


  1. Recruitment. Biology Online. Accessed October 21, 2012.
  2. Recruitment and the Local Dynamics of Open Marine Populations. Annual Review of Ecology and Systematics 1996. 27:477–500
  3. Fish recruitment. The Scottish Government. Accessed January 14, 2016.
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