Climate change alters the temporal persistence of coastal-pelagic fishes off eastern Australia

Champion Curtis; Hobday Alistair J.; Zhang XuebinColeman Melinda A.

首页> 外文期刊>ICES journal of marine science: International Council for the Exploration of the Sea journal of marine science >Climate change alters the temporal persistence of coastal-pelagic fishes off eastern Australia

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Climate change alters the temporal persistence of coastal-pelagic fishes off eastern Australia

机译：Climate change alters the temporal persistence of coastal-pelagic fishes off eastern Australia

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The climate-driven redistribution of fisheries species is altering their availability to fishers, necessitating projections of species redistributions that directly relate to future fishing opportunities. We propose that a valuable proxy for fishing opportunity is the proportion of the year that target species are available to fishers, which can be approximated by the temporal persistence of suitable habitat in defined regions. Here, we quantify changes in temporal habitat persistence (months/year) within five eastern Australian bioregions over the period 2010-2060 for four coastal-pelagic fishes: bonito (Sarda australis), spotted mackerel (Scomberomorus munroi), Spanish mackerel (Scomberomorus commerson) and dolphinfish (Coryphaena hippurus). When species were analysed collectively, a significant reduction in the temporal persistence of suitable environmental habitats was evident in the most equatorward (i.e. Tweed-Moreton) bioregion, while significant positive increases were found for poleward bioregions (e.g. Batemans and Twofold Shelf bioregions). The greatest increases in temporal habitat persistence were projected for bonito in the Batemans Shelf bioregion and Spanish mackerel in the Hawkesbury Shelf bioregion (+2.2 and + 1.5 months/year between 10-year averages centered on 2020 and 2050, respectively). By demonstrating temporal habitat persistence as a measure of fishing opportunity, we highlight the potential for this metric to be an effective means of communicating to fishing stakeholders the need to adapt to climate change.

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《ICES journal of marine science: International Council for the Exploration of the Sea journal of marine science》 |2022年第4期|1083-1097|共15页
作者
Champion Curtis; Hobday Alistair J.; Zhang XuebinColeman Melinda A.;
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作者单位

NSW Dept Primary Ind, Fisheries Res, Coffs Harbour, NSW, Australia|Southern Cross Univ, Natl Marine Sci Ctr, Coffs Harbour, NSW, Australia;

CSIRO Oceans & Atmosphere, Hobart, Tas, Australia;

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正文语种英语
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adaptation; climate change; Coryphaena hippurus; fishing opportunity; range shift; Sarda australis; Scomberomorus commerson; Scomberomorus munroi; species distribution model; temporal habitat persistence;

Climate change alters the temporal persistence of coastal-pelagic fishes off eastern Australia

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