Patterns of deep-sea genetic connectivity in the New Zealand region : implications for management of benthic ecosystems

dc.contributor.author Bors, Eleanor K.
dc.contributor.author Rowden, Ashley A.
dc.contributor.author Maas, Elizabeth W.
dc.contributor.author Clark, Malcolm R.
dc.contributor.author Shank, Timothy M.
dc.date.accessioned 2013-01-23T16:39:03Z
dc.date.available 2013-01-23T16:39:03Z
dc.date.issued 2012-11-21
dc.description © The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS One 7 (2012): e49474, doi:10.1371/journal.pone.0049474. en_US
dc.description.abstract Patterns of genetic connectivity are increasingly considered in the design of marine protected areas (MPAs) in both shallow and deep water. In the New Zealand Exclusive Economic Zone (EEZ), deep-sea communities at upper bathyal depths (<2000 m) are vulnerable to anthropogenic disturbance from fishing and potential mining operations. Currently, patterns of genetic connectivity among deep-sea populations throughout New Zealand’s EEZ are not well understood. Using the mitochondrial Cytochrome Oxidase I and 16S rRNA genes as genetic markers, this study aimed to elucidate patterns of genetic connectivity among populations of two common benthic invertebrates with contrasting life history strategies. Populations of the squat lobster Munida gracilis and the polychaete Hyalinoecia longibranchiata were sampled from continental slope, seamount, and offshore rise habitats on the Chatham Rise, Hikurangi Margin, and Challenger Plateau. For the polychaete, significant population structure was detected among distinct populations on the Chatham Rise, the Hikurangi Margin, and the Challenger Plateau. Significant genetic differences existed between slope and seamount populations on the Hikurangi Margin, as did evidence of population differentiation between the northeast and southwest parts of the Chatham Rise. In contrast, no significant population structure was detected across the study area for the squat lobster. Patterns of genetic connectivity in Hyalinoecia longibranchiata are likely influenced by a number of factors including current regimes that operate on varying spatial and temporal scales to produce potential barriers to dispersal. The striking difference in population structure between species can be attributed to differences in life history strategies. The results of this study are discussed in the context of existing conservation areas that are intended to manage anthropogenic threats to deep-sea benthic communities in the New Zealand region. en_US
dc.description.sponsorship This work was funded in part by a Fulbright Fellowship administered by Fulbright New Zealand and the U.S. Department of State, awarded in 2011 to EKB. Funding and support for research expedition was provided by Land Information New Zealand, New Zealand Ministry of Fisheries, NIWA, Census of Marine Life on Seamounts (CenSeam), and the Foundation for Research, Science and Technology. Other research funding was provided by the New Zealand Ministry of Science and Innovation project “Impacts of resource use on vulnerable deep-sea communities” (FRST contract CO1X0906), the National Science Foundation (OCE-0647612), and the Deep Ocean Exploration Institute (Fellowship support to TMS). en_US
dc.format.mimetype application/pdf
dc.identifier.citation PLoS One 7 (2012): e49474 en_US
dc.identifier.doi 10.1371/journal.pone.0049474
dc.identifier.uri https://hdl.handle.net/1912/5732
dc.language.iso en_US en_US
dc.publisher Public Library of Science en_US
dc.relation.uri https://doi.org/10.1371/journal.pone.0049474
dc.rights Attribution 3.0 Unported *
dc.rights.uri http://creativecommons.org/licenses/by/3.0/ *
dc.title Patterns of deep-sea genetic connectivity in the New Zealand region : implications for management of benthic ecosystems en_US
dc.type Article en_US
dspace.entity.type Publication
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