Catch per unit effort
In fisheries and conservation biology, the catch per unit effort (CPUE) is an indirect measure of the abundance of a target species. Changes in the catch per unit effort are inferred to signify changes to the target species' true abundance. A decreasing CPUE indicates overexploitation, while an unchanging CPUE indicates sustainable harvesting.[1]
CPUE has a number of advantages over other methods of measuring abundance. It does not interfere with routine harvesting operations, and data are easily collected. The data are also easy to
Although CPUE is a relative measure of abundance, it can be used to estimate absolute abundances.[3] The main difficulty when using measures of CPUE is to define the unit of effort.[4] CPUE is also often nonlinearly related to abundance, making interpretation more difficult.[5]
See also
References
- ^ ISBN 978-0-231-12783-7.
- ISBN 978-0-632-05344-5.
- ISBN 978-0-12-088773-6.
- ISBN 978-92-5-100511-8.
- ISSN 0706-652X.