生物
八达通(软件)
分类单元
DNA条形码
渔业
细胞色素c氧化酶亚单位Ⅰ
动物
生态学
作者
Michael D. Amor,Anthony M. Hart
出处
期刊:Zootaxa
[Magnolia Press]
日期:2021-11-03
卷期号:5061 (1): 145-156
被引量:1
标识
DOI:10.11646/zootaxa.5061.1.7
摘要
A new Octopus Cuvier, 1797 species, Octopus djinda Amor, 2021 (previously treated as O. cf. tetricus and O. aff. tetricus), is described from the shallow waters off southwest Australia. This species was classified as conspecific with O. tetricus Gould, 1852 from Australias east coast and New Zealand but is shown here to be morphologically and genetically distinct. This description is based on 25 individuals across three localities in southwest Australia, encompassing most of its distribution. Greater and non-overlapping sucker counts on the males hectocotylised arm delimit east and west coast forms. DNA barcoding using cytochrome c oxidase subunit I also successfully differentiates between these taxa; 13 polymorphisms along a 349 bp partial fragment (3.7% sequence divergence). A close relative of the O. vulgaris Cuvier, 1797 species-group, O. djinda, sp. nov. supports a highly productive fishery and is currently one of two octopod fisheries worldwide to have received sustainable certification from the Marine Stewardship Council. The taxonomic description presented here provides formal recognition of the taxonomic status of southwest Australias common octopus, O. djinda, sp. nov. and facilitates appropriate fisheries catch reporting and management.
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