Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5743314 | Biological Conservation | 2017 | 8 Pages |
Abstract
There is a growing need to understand the inter-annual movements of mobile marine species of conservation concern to inform the design and placement of Marine Protected Areas (MPAs) to maximise their conservation potential. We use satellite telemetry data from 36 basking sharks (Cetorhinus maximus) tracked in 2012, 2013 and 2014 (cumulative total: 1598Â days; median: 44Â days; range: 10-87Â days) to quantify movements in coastal waters off the west coast of Scotland within the Sea of the Hebrides proposed MPA. Sharks exhibited seasonal residency to the proposed MPA, with a mean of 84% of filtered best daily locations occurring within its boundaries (2012Â =Â 80%, 2013Â =Â 90% and 2014Â =Â 74%). Three long-term tracked basking sharks demonstrated inter-annual site fidelity, returning to the same coastal waters in the year following tag deployment, with two returning to within the boundaries of the proposed MPA. These data likely suggest the area experiences favourable conditions and/or resources for basking sharks across years and, if designated, coupled with appropriate management, could afford protection during summer months.
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Authors
P.D. Doherty, J.M. Baxter, B.J. Godley, R.T. Graham, G. Hall, J. Hall, L.A. Hawkes, S.M. Henderson, L. Johnson, C. Speedie, M.J. Witt,