Journal article

Cryptic speciation and the circumpolarity debate: A case study on endemic Southern Ocean octopuses using the COI barcode of life

A Louise Allcock, Iain Barratt, Marc Eleaume, Katrin Linse, Mark D Norman, Peter J Smith, Dirk Steinke, Darren W Stevens, Jan M Strugnell

DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2011

Abstract

Three hundred and fifty specimens of the endemic Southern Ocean octopus genus Pareledone, were sequenced for the barcoding gene COI. Geographic coverage comprised the South Shetland Islands, the Ross Sea, Adélie Land, George V Land, the Weddell Sea, under the site of the former Larsen B ice shelf, Prydz Bay, the South Orkney Islands and the Amundsen Sea. The greatest number of specimens was captured at the three first-mentioned localities. At least 11 species were represented in the samples and the analyses revealed cryptic species. Six species were found to have extended distributions. Circumpolarity is supported for at least one species. Evidence is presented for a barrier to gene flow to ..

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