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Per-recruit modelling of pulse fisheries: comment on “Modelling pulse fishery systems in data-limited situations”
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2021
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Source: ICES Journal of Marine Science, 78(6), 2146-2149
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Journal Title:ICES Journal of Marine Science
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Description:A pulse fishery is one where fishing occurs during a short period each year and is zero for the rest of the year. Grüss et al. proposed a continuous per-recruit model for such fisheries. However, this analysis is based on per-recruit equations that were derived under the assumption that fishing mortality is constant in time and, thus, do not apply to fisheries where F varies, such as a pulse fishery. A correct continuous per-recruit formulation for pulse fisheries is derived. In most cases, the continuous per-recruit model can be closely approximated by a discrete model, where the integrals are replaced by sums. A modification in the Baranov catch equation for pulse fisheries is also derived that can used to compute annual exploitation rates.
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Source:ICES Journal of Marine Science, 78(6), 2146-2149
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ISSN:1054-3139;1095-9289;
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Rights Information:CC0 Public Domain
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Rights Statement:This work is written by US Government employees and is in the public domain in the US.
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