Show simple item record

dc.contributor.authorSuneetha, Kristogu Badugeeng
dc.contributor.authorSalvanes, Anne Gro Veaeng
dc.date.accessioned2010-04-12T11:49:42Z
dc.date.available2010-04-12T11:49:42Z
dc.date.issued2001eng
dc.identifier.citationSarsia 86(3): 203-212en
dc.identifier.issn0036-4827 (print version)eng
dc.identifier.urihttp://hdl.handle.net/1956/3872
dc.description.abstractIt is hypothesised that the fjords with restricted water circulation may partially isolate fish populations living there. The pelagic life history stages of the mesopelagic lanternfish may potentially subject to dispersal over vast areas, preventing population subdivision. In the present paper, we test the hypothesis of no geographic population genetic structure of B. glaciale in Norwegian waters. Fish samples from six different locations, including five western fjords were analysed using allozyme electrophoresis. Among the 17 loci analysed, nine loci were polymorphic by 0.99 criterion. Deviation from the global (pooled sample) HW equilibrium was detected at two loci, AAT-2* and PGM*, in terms of heterozygote deficiency, indicating a possible population subdivision in the area studied. Supporting such postulate, the allele frequencies at several loci were found significantly different, consequently rejecting the null hypothesis. The individual fjord samples were different from the offshore sample, and some between-fjord heterogeneity in allele frequencies was also found. However, Wright’s FST value was apparently low, but significantly different from zero, indicating a low level of population differentiation in the area studied. Partial isolation of fjord units of B. glaciale as a possible mechanism for genetic differentiation is discussed.en
dc.language.isoengeng
dc.publisherThe University of Bergeneng
dc.rightsAll rights reservedeng
dc.subjectMesopelagic fisheng
dc.subjectFjordseng
dc.subjectAllozymeseng
dc.subjectGenetic differentiationeng
dc.subjectStock structureeng
dc.titlePopulation genetic structure of the glacier lanternfish, Benthosema glaciale (Myctophidae) in Norwegian waterseng
dc.typeJournal articleeng
dc.typePeer reviewedeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497nob
dc.rights.holderThis is an electronic version of an article published in 'Sarsia' © 2001. Copyright Taylor & Francis; 'Sarsia' is available online at http://www.informaworld.com/openurl?genre=journal&issn=1745-1000
dc.rights.holderTaylor & Franciseng
bora.peerreviewedPeer reviewedeng


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record