Canadian Museum of Nature, P.O. Box 3443, Station D, Ottawa, Ontario, K1P 6P4, Canada.
Flinders University, College of Science Engineering, GPO Box 2100, Adelaide, SA 5001, Australia .
Zootaxa. 2021 Jul 2;4996(1):83-125. doi: 10.11646/zootaxa.4996.1.3.
Floating artificial structures provide sites for fouling communities and favourable habitat for the establishment of non-indigenous species. Two species of Tanaididae dominated crustacean biota in a one year time-series sampling of macroalgae on the floating dock at the West Beach boat ramp, Adelaide, South Australia. This paper provides identifications for these two species and discusses inter- and intra-species variability considering the available body of morphological and molecular information. We have given one species a new species designation, Tanais adelaidensis n. sp. The other has a 655 nucleotide CO1 sequence matching that of Hexapleomera sasuke Tanabe Kakui, 2019 collected in Japan, also matching a shorter CO1 sequence for a described Zeuxo Templeton, 1840 species from the Eastern Mediterranean. This work underlines the utility and need for detailed morphological and molecular data to resolve the taxonomy and biogeography of fouling and holdfast community tanaids, particularly those that have the demonstrated potential for a history of transport between geographically distant sites.
漂浮人工结构为污损生物群落提供了栖息地，并为非本地物种的建立提供了有利的生境。在对南澳大利亚阿德莱德西滩船坡道漂浮码头的大型藻类进行为期一年的时间序列采样中，两种糠虾科甲壳动物占据了甲壳类生物群的主导地位。本文提供了这两种物种的鉴定，并考虑到现有形态和分子信息，讨论了种内和种间的变异性。我们为一个物种指定了一个新的物种名称，即阿德莱德糠虾（Tanais adelaidensis n. sp.）。另一个物种的 CO1 序列有 655 个核苷酸，与在日本采集的六刺糠虾（Hexapleomera sasuke Tanabe Kakui, 2019）相匹配，也与来自东地中海的描述性 templetoni 糠虾（Zeuxo Templeton, 1840）的较短 CO1 序列相匹配。这项工作强调了详细的形态和分子数据在解决污损和固着群落糠虾的分类学和生物地理学方面的实用性和必要性，特别是那些具有在地理上遥远的地点之间进行运输历史的潜在可能性的物种。
