sonnei Bathyopsurus sp. 11 .——太平洋东北部阿留申海沟稀有深海等足类（甲壳纲，等足纲，无足纲）一新种，附对深海等足科的注释

IF 3.8 3区地球科学 Q1 OCEANOGRAPHY

Progress in Oceanography Pub Date : 2025-02-26 DOI:10.1016/j.pocean.2025.103443

Angelika Brandt , Davide Di Franco , Henry Knauber , Stefanie Kaiser , Andreas Kelch

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引用次数: 0

摘要

在东北太平洋阿留申海沟的RV Sonne考察阿留申生物（阿留申海沟生物多样性研究）（SO293）中，从亚北极北部斜坡和阿留申海沟北太平洋南部斜坡的4224-5170米深度收集了一种新物种（Munnopsidae, Bathyopsurinae）。sonnei Bathyopsurus sp. 11 .与该属其他物种在雌性口器和多足类2相关的几个特征上有所不同。sonnei Bathyopsurus sp. 11 .长65毫米，是迄今为止最大的单足类等足类动物。深鳍龙属被认为是罕见的，迄今为止只有少数样本样本，在这项研究之前只有有限的遗传数据。在这项研究中，我们提出了该属的第一个线粒体DNA数据，特别是COI和16S序列。我们的研究结果表明，尽管来自海沟两侧的标本属于同一物种。

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Bathyopsurus sonnei sp. nov. – A new species of the rare deep-sea isopod genus (Crustacea, Isopoda, Asellota) from the Aleutian Trench, north-eastern Pacific with notes on the Bathyopsurinae

A new species of the genus Bathyopsurus Nordenstam, 1955 (Munnopsidae, Bathyopsurinae) is described from the Aleutian Trench in the North-east Pacific collected during the RV Sonne expedition AleutBio (Aleutian Trench Biodiversity Studies) (SO293) from depths between 4224–5170 m from both the northern sub-Arctic slope as well as the southern North Pacific slope of the Aleutian Trench. Bathyopsurus sonnei sp. nov. differs from the other species of the genus in several characters related to the mouthparts and pleopod 2 of the female.

Bathyopsurus sonnei sp. nov. is 65 mm long, making it the largest munnopsid isopod ever sampled. The genus Bathyopsurus is considered rare, with only a few specimens sampled to date, and only limited genetic data available prior to this study. In this study, we present the first mitochondrial DNA data for the genus, specifically COI and 16S sequences. Our results indicate that, despite being collected from opposite sides of the trench, the specimens belong to the same species.

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来源期刊

Progress in Oceanography 地学-海洋学

CiteScore

7.20

自引率

4.90%

发文量

138

审稿时长

3 months

期刊介绍： Progress in Oceanography publishes the longer, more comprehensive papers that most oceanographers feel are necessary, on occasion, to do justice to their work. Contributions are generally either a review of an aspect of oceanography or a treatise on an expanding oceanographic subject. The articles cover the entire spectrum of disciplines within the science of oceanography. Occasionally volumes are devoted to collections of papers and conference proceedings of exceptional interest. Essential reading for all oceanographers.