Beta diversity of demersal fish assemblages in the North-Eastern Pacific: interactions of latitude and depth.

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dc.citation.issue3
dc.citation.volume8
dc.contributor.authorAnderson MJ
dc.contributor.authorTolimieri N
dc.contributor.authorMillar RB
dc.date.available2013-03-19
dc.date.available2013-01-27
dc.date.issued2013
dc.description.abstractKnowledge of broad-scale global patterns in beta diversity (i.e., variation or turnover in identities of species) for marine systems is in its infancy. We analysed the beta diversity of groundfish communities along the North American Pacific coast, from trawl data spanning 32.57°N to 48.52°N and 51 m to 1200 m depth. Analyses were based on both the Jaccard measure and the probabilistic Raup-Crick measure, which accounts for variation in alpha diversity. Overall, beta diversity decreased with depth, and this effect was strongest at lower latitudes. Superimposed on this trend were peaks in beta diversity at around 400-600 m and also around 1000-1200 m, which may indicate high turnover around the edges of the oxygen minimum zone. Beta diversity was also observed to decrease with latitude, but this effect was only observed in shallower waters (<200 m); latitudinal turnover began to disappear at depths >800 m. At shallower depths (<200 m), peaks in latitudinal turnover were observed at ∼43°N, 39°N, 35°N and 31°N, which corresponded well with several classically observed oceanographic boundaries. Turnover with depth was stronger than latitudinal turnover, and is likely to reflect strong environmental filtering over relatively short distances. Patterns in beta diversity, including latitude-by-depth interactions, should be integrated with other biodiversity measures in ecosystem-based management and conservation of groundfish communities.
dc.description.publication-statusPublished
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000317562100018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifierARTN e57918
dc.identifier.citationPLOS ONE, 2013, 8 (3)
dc.identifier.doi10.1371/journal.pone.0057918
dc.identifier.elements-id188058
dc.identifier.harvestedMassey_Dark
dc.identifier.issn1932-6203
dc.relation.isPartOfPLOS ONE
dc.rights© 2013 Anderson 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.
dc.titleBeta diversity of demersal fish assemblages in the North-Eastern Pacific: interactions of latitude and depth.
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/NZ Institute of Advanced Studies
pubs.organisational-group/Massey University/College of Sciences/School of Natural and Computational Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Natural and Computational Sciences/NZ Institute of Advanced Studies
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