Spatial overlap of grey seals and fisheries in Irish waters, some new insights using telemetry technology and VMS

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dc.contributor.author Cronin, Michelle A.
dc.contributor.author Gerritsen, H.
dc.contributor.author Reid, D.
dc.contributor.author Jessopp, Mark J.
dc.contributor.editor Hyrenbach, David
dc.date.accessioned 2016-10-20T09:14:50Z
dc.date.available 2016-10-20T09:14:50Z
dc.date.issued 2016-09-28
dc.identifier.citation Cronin, M., Gerritsen, H., Reid, D. and Jessopp, M. (2016) 'Spatial overlap of grey seals and fisheries in Irish waters, some new insights using telemetry technology and VMS', PLoS One, 11(9), e0160564 (13pp). doi:10.1371/journal.pone.0160564 en
dc.identifier.volume 11 en
dc.identifier.issued 9 en
dc.identifier.startpage 1 en
dc.identifier.endpage 13 en
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/10468/3195
dc.identifier.doi 10.1371/journal.pone.0160564
dc.description.abstract Seals and humans often target the same food resource, leading to competition. This is of mounting concern with fish stocks in global decline. Grey seals were tracked from southeast Ireland, an area of mixed demersal and pelagic fisheries, and overlap with fisheries on the Celtic Shelf and Irish Sea was assessed. Overall, there was low overlap between the tagged seals and fisheries. However, when we separate active (e.g. trawls) and passive gear (e.g. nets, lines) fisheries, a different picture emerged. Overlap with active fisheries was no different from that expected under a random distribution, but overlap with passive fisheries was significantly higher. This suggests that grey seals may be targeting the same areas as passive fisheries and/or specifically targeting passive gear. There was variation in foraging areas between individual seals suggesting habitat partitioning to reduce intra-specific competition or potential individual specialisation in foraging behaviour. Our findings support other recent assertions that seal/fisheries interactions in Irish waters are an issue in inshore passive fisheries, most likely at the operational and individual level. This suggests that seal population management measures would be unjustifiable, and mitigation is best focused on minimizing interactions at nets. en
dc.description.sponsorship Marine Institute (Beaufort Marine Research Award BEAU-EAFM-06); National Geographic Society (Global Exploration Fund GEFNE9-11); Inland Fisheries Ireland (Salmon Conservation Fund CRA/2011/183); Science Foundation Ireland (SFI/12/RC/2302) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Public Library of Science en
dc.rights © 2016, Cronin et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. en
dc.rights.uri https://creativecommons.org/licenses/by/4.0/ en
dc.subject Competition en
dc.subject Decline en
dc.subject Overlap en
dc.subject Active fisheries en
dc.subject Passive fisheries en
dc.subject Seal population management en
dc.title Spatial overlap of grey seals and fisheries in Irish waters, some new insights using telemetry technology and VMS en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Michelle Cronin, MaREI Centre for Marine and Renewable Energy, Environmental Research Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: michelle.cronin@ucc.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder Marine Institute en
dc.contributor.funder National Geographic Society en
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Inland Fisheries Ireland
dc.description.status Peer reviewed en
dc.identifier.journaltitle PLoS ONE en
dc.internal.IRISemailaddress michelle.cronin@ucc.ie
dc.identifier.articleid e0160564


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© 2016, Cronin et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Except where otherwise noted, this item's license is described as © 2016, Cronin et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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