Tracking oceanic sharks’ ups and downs in a changing world

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• David Sims (Marine Biological Association)
• Tuesday 08 March 2022, 13:00-14:00
• Zoom.

If you have a question about this talk, please contact Dr Emily Mitchell.

Oceanic pelagic sharks have declined globally over the past half century due to overfishing. Conservation and management actions are hampered by basic knowledge gaps about movement patterns, migratory routes, drivers of aggregations, climate change impacts, and precisely where they overlap with fishers across population ranges. Without knowing where sharks go and when, and what they do in different habitats, it will remain challenging to understand the impacts of future environmental changes on populations in the face of continued anthropogenic threats. In this seminar I will describe my team’s research with bio-logging technologies to understand how pelagic shark movement patterns alter in response to variations in environment, and what this means for understanding habitat selection and their interactions with fishing vessel distributions. I will describe how this knowledge can help conserve shark populations, especially in the light of climate warming and ocean deoxygenation, because interaction of human exploitation and climate change will have important consequences for how sharks are managed in the warmer oceans of the future.

This talk is part of the Behaviour, Ecology & Evolution Seminar Series series.

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