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Global analysis of depletion and recovery of seabed biota after bottom trawling disturbance

Global analysis of depletion and recovery of seabed biota after bottom trawling disturbance
Significance Bottom trawling is the most widespread source of physical disturbance to the world’s seabed. Predictions of trawling impacts are needed to underpin risk assessment, and they are relevant for the fishing industry, conservation, management, and certification bodies. We estimate depletion and recovery of seabed biota after trawling by fitting models to data from a global data compilation. Trawl gears removed 6–41% of faunal biomass per pass, and recovery times posttrawling were 1.9–6.4 y depending on fisheries and environmental context. These results allow the estimation of trawling impacts on unprecedented spatial scales and for data poor fisheries and enable an objective analysis of tradeoffs between harvesting fish and the wider ecosystem effects of such activities.
- University of Queensland Australia
- University of Mary United States
- University of Queensland Australia
- Natural Resources Institute Finland Finland
- United Nations United States
Georges Bank, Megafauna, IMPACTS, 570, Aquatic Organisms, Geologic Sediments, 550, Benthic Community, Oceans and Seas, Framework, logistic recovery model, Fisheries, 333, systematic review, https://purl.org/becyt/ford/4.1, Indicators, TRAWLING, Animals, https://purl.org/becyt/ford/4, Human Activities, Biomass, LOGISTIC RECOVERY MODEL, impacts, METAANALYSIS, Fishes, Biodiversity, Biota, Invertebrates, Objectives, Habitats, Impact, Sustainability, SYSTEMATIC REVIEW, 1000 General, trawling, metaanalysis
Georges Bank, Megafauna, IMPACTS, 570, Aquatic Organisms, Geologic Sediments, 550, Benthic Community, Oceans and Seas, Framework, logistic recovery model, Fisheries, 333, systematic review, https://purl.org/becyt/ford/4.1, Indicators, TRAWLING, Animals, https://purl.org/becyt/ford/4, Human Activities, Biomass, LOGISTIC RECOVERY MODEL, impacts, METAANALYSIS, Fishes, Biodiversity, Biota, Invertebrates, Objectives, Habitats, Impact, Sustainability, SYSTEMATIC REVIEW, 1000 General, trawling, metaanalysis
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