Deep-sea echinoderms (except holothurians) collected during the AleutBio expedition around the Bering Sea and the Aleutian Trench

IF 3.6 3区地球科学 Q1 OCEANOGRAPHY

Progress in Oceanography Pub Date : 2025-07-03 DOI:10.1016/j.pocean.2025.103530

Camille Moreau , Angelina Eichsteller , Quentin Jossart , Thomas Saucède , Erwan Courville , Timothy D. O’Hara , Pablo Martinez-Soares , Angelika Brandt , Luka Vantomme , Alexandr Mironov , Anna Dilman

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引用次数: 0

Abstract

Deep-sea ecosystems harbour a high amount of unknown species and echinoderms belong to the most abundant megafaunal taxa encountered in these habitats. In this work we present the echinoderms belonging to the classes Asteroidea, Echinoidea, Ophiuroidea and Crinoidea collected from the Bering Sea and the Aleutian Trench (3498–7254 m) during the AleutBio expedition (SO293) onboard the German vessel RV Sonne. The AleutBio expedition represents a significant addition to the general knowledge on deep-sea echinoderms (holothurians excepted) from the North East Pacific Ocean with 6115 specimens collected, belonging to 39 species within 31 genera, confirmed as distinct genetic entities using a barcoding approach. Several new putative species are discussed together with preliminary biogeographic patterns suggesting a wide distribution for many of the deep-sea echinoderms species. The role of the Aleutian Trench as a biogeographic barrier is unlikely for echinoderms and estimations of its richness are higher than previously thought.

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在白令海和阿留申海沟附近的阿留申生物考察中收集的深海棘皮动物（holothurians除外）

深海生态系统中蕴藏着大量未知物种，棘皮动物属于这些栖息地中最丰富的巨型动物类群。在这项工作中，我们介绍了在德国RV Sonne船的阿留申生物考察（SO293）期间从白令海和阿留申海沟（3498-7254 m）收集的属于Asteroidea， Echinoidea， Ophiuroidea和criinoidea类的棘皮动物。阿留申生物考察代表了对东北太平洋深海棘皮动物（holothurians除外）一般知识的重要补充，收集了6115个标本，属于31属的39个物种，使用条形码方法确认为不同的遗传实体。本文讨论了几种新的假定物种，并提出了许多深海棘皮动物物种分布广泛的初步生物地理格局。对于棘皮动物来说，阿留申海沟作为生物地理屏障的作用不大，对其丰富程度的估计比以前认为的要高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.