We can reduce the impact of scientific trawling on marine ecosystems

V M Trenkel (1) , S Vaz (2) , C Albouy (1) , A Brind’amour (1) , E Duhamel , P Laffargue (1) , J B Romagnan (1) , J Simon , P Lorance (1)

1 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer
2 UMR MARBEC - MARine Biodiversity Exploitation and Conservation

The negative impacts that scientific monitoring may have on marine ecosystems has been a neglected topic, mainly on the basis that its magnitude is minor compared to commercial fisheries, even though this raises ethical and, in certain cases, conservation issues. We argue that ethical principles should lead us to reconsider marine wildlife resource monitoring such as the fish and shellfish trawl surveys providing the science-based evidence needed for fisheries management and assessment of how environmental change affects marine shelf communities worldwide. Recent scientific and technological progress has provided methods and tools which might now be harnessed to reduce the impact of marine monitoring. We review these alternative methods, consider modifications to current practices and identify areas requiring further research.

Mots clés: Ecosystem-based management; abundance; biodiversity; fisheries; management; dna; fish; Impacts of bottom trawling; Marine surveying; Monitoring ethics; aerial vehicles uavs; ethics; Genetic methods; welfare

Domaines: Sciences et techniques des pêches; Biodiversité et Ecologie; Ecologie, Environnement

V M Trenkel, S Vaz, C Albouy, A Brind’amour, E Duhamel, et al.. We can reduce the impact of scientific trawling on marine ecosystems. Marine Ecology Progress Series, 2019, 609, pp.277-282. ⟨10.3354/meps12834⟩. ⟨hal-03089793⟩