The Risky Decrease of Fishing Reference Points Under Climate Change

Travers-Trolet, Morgane; Bourdaud, Pierre; Genu, Mathieu; Velez, Laure; Vermard, Youen

doi:10.3389/fmars.2020.568232

Cited by 16 publications

(9 citation statements)

References 44 publications

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“…Furthermore, it is largely acknowledged that most of the presently used stock assessment models are too simplistic since they often consider species populations without integrating the role of key environmental drivers, which is a challenging but crucial frontier in the time of global changes. Taking into consideration environmental factors is also pivotal for the MSY objective, as climate change impacts on the fish community would require moving below fishing mortality at FMSY to ensure sustainable exploitation of marine stocks (Travers-Trolet et al, 2020). An optimised approach for the analysis of trawl survey data is relevant for the stock assessments and advices carried out by Scientific Advisory Committee of the General Fisheries Commission for the Mediterranean Sea (SAC-GFCM) and the Scientific, Technical and Economic Committee for Fisheries (STECF) of the European Commission, as fisheries-independent data are essential for fishery management.…”

Section: Journal Of Operational Oceanography S119mentioning

confidence: 99%

Copernicus Marine Service Ocean State Report, Issue 5

Schuckmann¹,

Traon²,

Smith³

et al. 2021

Journal of Operational Oceanography

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DisclaimerInforma UK Limited, trading as Taylor & Francis Group, make every effort to ensure the accuracy of all the information (the "Content") contained in our publications. However, Informa UK Limited, trading as Taylor & Francis Group, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. Any opinions and views expressed in this publication are the opinions and views of the authors, and are not the views of or endorsed by Informa UK Limited, trading as Taylor & Francis Group. The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Informa UK Limited, trading as Taylor & Francis Group, shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content.

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Section: Journal Of Operational Oceanography S119mentioning

confidence: 99%

Copernicus Marine Service Ocean State Report, Issue 5

Schuckmann¹,

Traon²,

Smith³

et al. 2021

Journal of Operational Oceanography

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“…As climate changes affect strongly the productivity of stocks through changes in recruitment and other demographic parameters, causing a change in the sustainable yield of stocks (Kell et al, 2005;Travers-Trolet et al, 2020), evaluation and management should consider not only fishing effort but also climate and environmental change (Moullec et al, 2019). Consequently, the EU Data Collection Framework and the GFCM Data Collection Reference Framework should be adapted accordingly, improving real-time monitoring of commercial stocks, exploited communities, related environmental drivers, and fishing activities to move toward adaptive management.…”

Section: How To Improve Sustainability Of the Capture Processes In The Mediterraneanmentioning

confidence: 99%

How Can We Reduce the Overexploitation of the Mediterranean Resources?

Fiorentino

Vitale

2021

Front. Mar. Sci.

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Based on the characteristics of the fishing sector (multispecies and multi-gears) and the stock status of main resources (overfishing and overexploitation), some suggestions to improve the sustainability of demersal and small pelagic fisheries in the Mediterranean are proposed. In fisheries exploiting single or few species, such as small pelagics and deep-water red shrimps, the adoption of a management system based on catch quota approaches is suggested. In the case of mixed fisheries exploiting species with very different biological traits, it is proposed to reduce the fishing effort to a level corresponding to the lower range of the “pretty good yield” of the main target species while improving the status of the most sensitive associated species, adopting technical measures to mitigate fishing mortality. The feasibility of the proposed approaches is briefly discussed, taking into account the different levels of development of the Mediterranean countries.

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“…Indeed, top predators are known to favour the stability of ecosystems by maintaining low prey densities and fluctuations (Bax, 1998; Hollowed, 2000; Kirby et al, 2009; Mangel & Levin, 2005; Wilmers et al, 2007). At the local Eastern English Channel scale, several studies already emphasized the important control of cod and whiting, here depleted, on the lower trophic levels using different modelling approaches (Girardin et al, 2016; Travers‐Trolet et al, 2020). Gadoids, especially, are known to be negatively affected by warming (Free et al, 2019), thus, such an event is predictable.…”

Section: Discussionmentioning

confidence: 99%

Impacts of climate change on the Bay of Seine ecosystem: Forcing a spatio‐temporal trophic model with predictions from an ecological niche model

Bourdaud

Lasram

Araignous

et al. 2021

Fisheries Oceanography

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Climate change is already known to cause irreversible impacts on ecosystems that are difficult to accurately predict due to the multiple scales at which it will interact. Predictions at the community level are mainly focused on the future distribution of marine species biomass using ecological niche modelling, which requires extensive efforts concerning the effects that trophic interactions could have on the realized species dynamics. In this study, a set of species distribution models predictions were used to force the spatially‐explicit trophic model Ecospace in order to evaluate the potentials impacts that two 2,100 climate scenarios, RCP2.6 and RCP8.5, could have on a highly exploited ecosystem, the Bay of Seine (France). Simulations demonstrated that both scenarios would influence the community of the Bay of Seine ecosystem: as expected, more intense changes were predicted with the extreme scenario RCP8.5 than with the RCP2.6 scenario. Under both scenarios, a majority of species underwent a decrease of biomass, although some increased. However, in both cases the stability of the majority of species dynamics was lowered, the sustainability of the fishery. Differences between niche modelling predictions and those obtained through the forcing in Ecospace highlighted the paramount importance of considering trophic interactions in climate change simulations. These results illustrate the requirement of multiplying novel approaches for efficiently forecasting potential impacts of climate change.

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The Risky Decrease of Fishing Reference Points Under Climate Change

Cited by 16 publications

References 44 publications

Copernicus Marine Service Ocean State Report, Issue 5

Copernicus Marine Service Ocean State Report, Issue 5

How Can We Reduce the Overexploitation of the Mediterranean Resources?

Impacts of climate change on the Bay of Seine ecosystem: Forcing a spatio‐temporal trophic model with predictions from an ecological niche model

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