Show simple item record

dc.contributor.authorClarke, Lora M.  Concept link
dc.contributor.authorMunch, Stephan B.  Concept link
dc.contributor.authorThorrold, Simon R.  Concept link
dc.contributor.authorConover, David O.  Concept link
dc.date.accessioned2011-07-14T13:34:58Z
dc.date.available2011-07-14T13:34:58Z
dc.date.issued2010-12
dc.identifier.citationEcology 91 (2010): 3526–3537en_US
dc.identifier.urihttps://hdl.handle.net/1912/4680
dc.descriptionAuthor Posting. © Ecological Society of America, 2010. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution. The definitive version was published in Ecology 91 (2010): 3526–3537, doi:10.1890/09-0548.1.en_US
dc.description.abstractPatterns of connectivity are important in understanding the geographic scale of local adaptation in marine populations. While natural selection can lead to local adaptation, high connectivity can diminish the potential for such adaptation to occur. Connectivity, defined as the exchange of individuals among subpopulations, is presumed to be significant in most marine species due to life histories that include widely dispersive stages. However, evidence of local adaptation in marine species, such the Atlantic silverside, Menidia menidia, raises questions concerning the degree of connectivity. We examined geochemical signatures in the otoliths, or ear bones, of adult Atlantic silversides collected in 11 locations along the northeastern coast of the United States from New Jersey to Maine in 2004 and eight locations in 2005 using laser ablation inductively coupled plasma mass spectrometry (ICP-MS) and isotope ratio monitoring mass spectrometry (irm-MS). These signatures were then compared to baseline signatures of juvenile fish of known origin to determine natal origin of these adult fish. We then estimated migration distances and the degree of mixing from these data. In both years, fish generally had the highest probability of originating from the same location in which they were captured (0.01–0.80), but evidence of mixing throughout the sample area was present. Furthermore, adult M. menidia exhibit highly dispersive behavior with some fish migrating over 700 km. The probability of adult fish returning to natal areas differed between years, with the probability being, on average, 0.2 higher in the second year. These findings demonstrate that marine species with largely open populations are capable of local adaptation despite apparently high gene flow.en_US
dc.description.sponsorshipThis work was funded by the National Science Foundation (grant OCE-0425830 to D. O. Conover and grant OCE- 0134998 to S. R. Thorrold) and the New York State Department of Environmental Conservation.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherEcological Society of Americaen_US
dc.relation.urihttps://doi.org/10.1890/09-0548.1
dc.subjectAtlantic silversideen_US
dc.subjectConnectivityen_US
dc.subjectGene flowen_US
dc.subjectLocal adaptationen_US
dc.subjectMenidia menidiaen_US
dc.subjectNortheastern U.S. Coasten_US
dc.subjectOtolith chemistryen_US
dc.subjectPopulation structureen_US
dc.titleHigh connectivity among locally adapted populations of a marine fish (Menidia menidia)en_US
dc.typeArticleen_US
dc.identifier.doi10.1890/09-0548.1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record