Show simple item record

dc.contributor.authorShephard, S.
dc.contributor.authorGerritsen, H. D.
dc.contributor.authorKaiser, M. J.
dc.contributor.authorTruszkowska, H. S.
dc.contributor.authorReid, D. G.
dc.date.accessioned2018-09-20T16:24:34Z
dc.date.available2018-09-20T16:24:34Z
dc.date.issued2011-08-20
dc.identifier.citationShephard, S. Gerritsen, H. D.; Kaiser, M. J.; Truszkowska, H. S.; Reid, D. G. (2011). Fishing and environment drive spatial heterogeneity in celtic sea fish community size structure. ICES Journal of Marine Science 68 (10), 2106-2113
dc.identifier.issn1054-3139,1095-9289
dc.identifier.urihttp://hdl.handle.net/10379/13892
dc.description.abstractThe Large Fish Indicator (LFI) is a univariate size-based indicator of fish community state that has been selected to support the OSPAR fish community Ecological Quality Objective (EcoQO). To operate this EcoQO, a survey-based LFI for each OSPAR region needs to be developed. However, fish communities in these regions are spatially heterogeneous, and there is evidence of within-region spatial variation in the LFI that could confound an overall indicator series. For Celtic Sea trawl-survey sites, spline correlograms indicate positive spatial autocorrelation at a similar range (similar to 40 km) for the LFI and for fishing effort (h year(-1)) from vessel monitoring systems. Statistical models reveal a strong negative effect on annual LFI by site of fishing effort within a radius of 40 km. There was a weak effect of fishing within 20 km and no effect at 10 km. LFI also varied significantly with substratum and with local fish community composition identified by a resemblance matrix derived from the survey data. Finally, there was a weak effect of survey year on LFI. Spatial stratification of LFI calculations may be necessary when developing size-based indicators for OSPAR or Marine Strategy Framework Directive regions.
dc.publisherOxford University Press (OUP)
dc.relation.ispartofICES Journal of Marine Science
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subjectecological quality objective
dc.subjectecosystem approach to fisheries management
dc.subjectlarge fish indicator
dc.subjectmarine protected areas
dc.subjectvms
dc.subjectmarine protected areas
dc.subjectnorth-sea
dc.subjectfisheries management
dc.subjecthabitat association
dc.subjectspecies-diversity
dc.subjectreserves
dc.subjectconservation
dc.subjectassemblages
dc.subjectdispersal
dc.subjectbenefits
dc.titleFishing and environment drive spatial heterogeneity in celtic sea fish community size structure
dc.typeArticle
dc.identifier.doi10.1093/icesjms/fsr137
dc.local.publishedsourcehttps://academic.oup.com/icesjms/article-pdf/68/10/2106/1676070/fsr137.pdf
nui.item.downloads0


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland