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Lissarca notorcadensis BAS CAML

Citation

Linse K, Van de Putte A (2019). Lissarca notorcadensis BAS CAML. SCAR - AntOBIS. Occurrence dataset https://doi.org/10.15468/dbd1m2 accessed via GBIF.org on 2019-12-10.

Description

The bivalve Lissarca notorcadensis is one of the most abundant species in Antarctic waters and has colonised the entire Antarctic shelf and Scotia Sea Islands. Its brooding reproduction, low dispersal capabilities and epizoic lifestyle predict limited gene flow between geographically isolated populations. Relationships between specimens from seven regions in the Southern Ocean and outgroups were assessed with nuclear 28S rDNA and mitochondrial cytochrome oxidase subunit I (COI) genes. The 28S dataset indicate that while Lissarca appears to be a monophyletic genus, there is polyphyly between the Limopsidae and Philobryidae. Thirteen CO1 haplotypes were found, mostly unique to the sample regions, and two distinct lineages were distinguished. Specimens from the Weddell and Ross Sea form one lineage while individuals from the banks and islands of the Scotia Sea form the other. Within each lineage, further vicariance was observed forming six regionally isolated groups. Our results provide initial evidence for reproductively isolated populations of L. notorcadensis. The islands of the Scotia Sea appear to act as centres of speciation in the Southern Ocean.

Additional info

marine, harvested by iOBIS

Taxonomic Coverages

Lissarca notorcadensis urn:lsid:marinespecies.org:taxname:51 AphiaID: 197241
  1. Mollusca [Molluscs]
    rank: phylum
  2. Lissarca notorcadensis Melvill & Standen, 1907
    rank: species

Geographic Coverages

Antarctica

Bibliographic Citations

Contacts

Katrin Linse
originator
Natural Environment Research Council; British Antarctic Survey
email: kl@bas.ac.uk
Anton Van de Putte
metadata author
Antarctic Biodiversity Information Facility (ANTABIF)
email: antonarctica@gmail.com
homepage: http://data.biodiversity.aq
Katrin Linse
administrative point of contact
Natural Environment Research Council; British Antarctic Survey
email: kl@bas.ac.uk
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