Physiological biomarkers and fisheries management

Type Article
Date 2021-12
Language English
Author(s) Brosset PabloORCID1, 2, Cooke Steven J.3, Schull Quentin4, Trenkel VerenaORCID5, Soudant Philippe2, Lebigre ChristopheORCID1
Affiliation(s) 1 : Ifremer, Laboratoire de Biologie Halieutique, ZI Pointe du Diable - CS 10070, 29 280, Plouzané, France
2 : Université de Brest - UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des sciences de l’environnement marin - IUEM - Rue Dumont D’Urville, 29280, Plouzané, France
3 : Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
4 : MARBEC, Univ. de Montpellier, IFREMER, IRD, CNRS, Sète, France
5 : Ifremer, Ecologie et Modèles Pour l’Halieutique, Nantes, France
Source Reviews In Fish Biology And Fisheries (0960-3166) (Springer Science and Business Media LLC), 2021-12 , Vol. 31 , N. 4 , P. 797-819
DOI 10.1007/s11160-021-09677-5
WOS© Times Cited 12
Keyword(s) Biomarker, Marine fish, Conservation physiology, Management, Climate change

The benefits of physiological biomarkers, knowledge and concepts are well-established in fish and wildlife management as they confer the ability to understand mechanistic processes, identify cause-and-effect relationships, and develop predictive models. Although this approach is gaining momentum in the context of species conservation, the use of physiological biomarkers in exploited marine fish stock management and recovery plans remains relatively rare. Here, we present five essential issues to consider to implement physiological biomarkers in fisheries management: (i) choice of relevant biomarkers that have a well-known mechanistic basis, (ii) identification of species-specific biomarkers reflecting a meaningful timespan for management, (iii) selection of biomarkers compatible with data collection during routine scientific fisheries surveys, (iv) use of biomarkers as early-warning signals and complementary indicators of population-level changes in life history traits and (v) how physiological biomarkers may help to refine long-term population dynamic projections under climate change and management scenarios. Overall, if based on well-established mechanisms linked to individuals’ fitness, a focus on physiological biomarkers should help to better understand the mechanisms behind stock declines, changes in stock characteristics, and thus more efficiently manage marine fisheries and conserve populations. As this approach is transferable among species, locations, and times, the integration of physiological biomarkers in fisheries science has the potential to more broadly enhance assessments and management of fish stocks.

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