Quantifying the potential impact of reducing recreational harvest limits on the catch of a key marine species using off-site angler survey data

Faith Ochwada-Doyle; Julian Hughes; Ashley M. FowlerJeffrey MurphyKate StarkMichael LowryLaurie WestMatthew D. Taylor

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Quantifying the potential impact of reducing recreational harvest limits on the catch of a key marine species using off-site angler survey data

机译：Quantifying the potential impact of reducing recreational harvest limits on the catch of a key marine species using off-site angler survey data

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Recreational fishing can have substantial ecological impacts, which must be managed against a background of critical socio-economic factors.However, it is often difficult to assess the effect of altered management arrangements on this sector’s harvest. Recreational fishing surveyscan assist in quantifying the impact of changes to harvest limits. Here, we use survey data collected in 2013/2014 and 2017/2018 to estimatethe total catch of Dusky Flathead (Platycephalus fuscus), a key Australian marine species, under a daily harvest limit of 10 fish per angler andsimulated scenarios where the limit is reduced to 5, 3, or 1 fish per angler. We then test the significance of these changes in harvest limit oncatch and also model the potential effects of year and region using generalized linear mixed models (GLMMz). For both sampled time periods,the GLMMz found that only the most stringent harvest limit reduction to 1 fish per angler would lower retained harvest significantly. None ofthe reductions in harvest limit increased the number of released Dusky Flathead significantly. We discuss how this novel quantitative approachcan be used to inform alternative output management regulations by taking into account their potential ecological and socio-economic benefitsfor a recreational fishery.

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《ICES journal of marine science: International Council for the Exploration of the Sea journal of marine science》 |2023年第2期|295-307|共13页
作者
Faith Ochwada-Doyle; Julian Hughes; Ashley M. FowlerJeffrey MurphyKate StarkMichael LowryLaurie WestMatthew D. Taylor;
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New SouthWales Department of Primary Industries, Sydney Institute of Marine Science, 19 Chowder Bay Road, Mosman NSW 2088,Australia,University of New SouthWales, Kensington NSW 2052, Australia;

New SouthWales Department of Primary Industries, Sydney Institute of Marine Science, 19 Chowder Bay Road, Mosman NSW 2088,Australia;

New SouthWales Department of Primary Industries, 84 Crown St,Wollongong NSW 2500, AustraliaInstitute of Marine and Antarctic Studies, University of Tasmania, Hobart TAS 7001, AustraliaNew SouthWales Department of Primary Industries, Port Stephens Fisheries Institute Taylors Beach Road, Taylors Beach NSW 2316,AustraliaKewagama Research, Doonan QLD 4562, Australia;

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正文语种英语
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harvest strategies; output management regulations; precautionary approach; telephone-diary surveys; triple-bottom line sustainability;

Quantifying the potential impact of reducing recreational harvest limits on the catch of a key marine species using off-site angler survey data

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