The global extent and severity of operational interactions between conflicting pinnipeds and fisheries

John Jackson, William N. S. Arlidge, Rodrigo Oyanedel and Katrina Joan Davis ()
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John Jackson: University of Oxford
William N. S. Arlidge: Leibniz Institute of Freshwater Ecology and Inland Fisheries
Rodrigo Oyanedel: Av. Libertador Bernardo O’Higgins 340
Katrina Joan Davis: University of Oxford

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Recent population recovery of many pinniped species (seals, sea lions, walrus) is a conservation success. However, pinniped population recovery combined with increasing global fisheries operations is leading to increased conflicts between pinnipeds and fisheries. This human-wildlife conflict threatens pinniped conservation outcomes and may impose damaging impacts on fisheries, but the economic consequences and extent of these impacts are poorly understood. Here, we provide a global assessment of pinniped and fisheries operational interactions. We show that a third of reported fishing days have interactions with pinnipeds and 13.8% of catch is lost. Our results also reveal high heterogeneity between studies. Small-scale fisheries are three times more likely to interact with pinnipeds and lose four times as much catch as large-scale fisheries. Finally, we develop a spatial index that can predict where conflict is most likely to occur. Our findings reveal a substantial global issue requiring appropriate management as pinniped populations continue to recover.

Date: 2024
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DOI: 10.1038/s41467-024-51298-6

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