帝王海山的短尾兽和十足兽

IF 3 3区地球科学 Q2 OCEANOGRAPHY

Deep-sea Research Part Ii-topical Studies in Oceanography Pub Date : 2025-06-16 DOI:10.1016/j.dsr2.2025.105501

Evgeniia Egorova, Tatiana Dautova

{"title":"帝王海山的短尾兽和十足兽","authors":"Evgeniia Egorova, Tatiana Dautova","doi":"10.1016/j.dsr2.2025.105501","DOIUrl":null,"url":null,"abstract":"<div><div>The bathyal areas in the Emperor Seamount Chain (North Pacific) were investigated during two expeditions of the RV <em>Akademik M.A. Lavrentyev</em> in 2019 and 2021. Over 60 crustacean specimens, including true crabs, king crabs, and squat lobsters, were collected and more than 70 h of video data recorded. We present first information on the composition and distribution of deep-sea decapods (Brachyura and Anomura) of the Emperor Chain obtained with a remote operated vehicle. First data on the squat lobster (Chirostyloidea, Galatheoidea) fauna from the Emperor Seamounts are provided. The known geographic range of <em>Macroregonia macrochira</em> is broadened. The depth range of <em>Chaceon imperialis</em> was expanded and found to be bimodal. We have identified a species of king crab (<em>Neolithodes bronwynae</em>) previously unknown in the North Pacific. Overall, the diversity in the Emperor Seamount Chain region shows a relatively high level of endemism and a presence of species previously known from distant regions, suggesting that further biogeographical studies of the region and surrounding areas may elucidate migration routes.</div></div>","PeriodicalId":11120,"journal":{"name":"Deep-sea Research Part Ii-topical Studies in Oceanography","volume":"222 ","pages":"Article 105501"},"PeriodicalIF":3.0000,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Brachyuran and anomuran Decapoda of the Emperor Seamounts\",\"authors\":\"Evgeniia Egorova, Tatiana Dautova\",\"doi\":\"10.1016/j.dsr2.2025.105501\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The bathyal areas in the Emperor Seamount Chain (North Pacific) were investigated during two expeditions of the RV <em>Akademik M.A. Lavrentyev</em> in 2019 and 2021. Over 60 crustacean specimens, including true crabs, king crabs, and squat lobsters, were collected and more than 70 h of video data recorded. We present first information on the composition and distribution of deep-sea decapods (Brachyura and Anomura) of the Emperor Chain obtained with a remote operated vehicle. First data on the squat lobster (Chirostyloidea, Galatheoidea) fauna from the Emperor Seamounts are provided. The known geographic range of <em>Macroregonia macrochira</em> is broadened. The depth range of <em>Chaceon imperialis</em> was expanded and found to be bimodal. We have identified a species of king crab (<em>Neolithodes bronwynae</em>) previously unknown in the North Pacific. Overall, the diversity in the Emperor Seamount Chain region shows a relatively high level of endemism and a presence of species previously known from distant regions, suggesting that further biogeographical studies of the region and surrounding areas may elucidate migration routes.</div></div>\",\"PeriodicalId\":11120,\"journal\":{\"name\":\"Deep-sea Research Part Ii-topical Studies in Oceanography\",\"volume\":\"222 \",\"pages\":\"Article 105501\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-06-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Deep-sea Research Part Ii-topical Studies in Oceanography\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0967064525000505\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OCEANOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Deep-sea Research Part Ii-topical Studies in Oceanography","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0967064525000505","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OCEANOGRAPHY","Score":null,"Total":0}

引用次数: 0

摘要

2019年和2021年，“拉夫连季耶夫院士号”（Akademik ma . Lavrentyev）进行了两次考察，对皇帝海山链（北太平洋）的深海区进行了调查。收集了60多个甲壳类动物标本，包括真蟹、帝王蟹和蹲虾，并记录了70多个小时的视频数据。本文首次报道了利用遥控潜水器获得的皇链深海十足类（短足类和不规则足类）的组成和分布。本文首次提供了皇帝海山深蹲龙虾群的资料。扩大了已知的大鲵地理分布范围。扩大了帝国龙的深度范围，发现其为双峰分布。我们已经在北太平洋发现了一种以前未知的帝王蟹（Neolithodes bronwynae）。总体而言，皇帝海山链区域的多样性显示出较高的地方性，并且存在以前从遥远地区已知的物种，这表明该区域及其周边地区的进一步生物地理研究可能会阐明迁徙路线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Brachyuran and anomuran Decapoda of the Emperor Seamounts

The bathyal areas in the Emperor Seamount Chain (North Pacific) were investigated during two expeditions of the RV Akademik M.A. Lavrentyev in 2019 and 2021. Over 60 crustacean specimens, including true crabs, king crabs, and squat lobsters, were collected and more than 70 h of video data recorded. We present first information on the composition and distribution of deep-sea decapods (Brachyura and Anomura) of the Emperor Chain obtained with a remote operated vehicle. First data on the squat lobster (Chirostyloidea, Galatheoidea) fauna from the Emperor Seamounts are provided. The known geographic range of Macroregonia macrochira is broadened. The depth range of Chaceon imperialis was expanded and found to be bimodal. We have identified a species of king crab (Neolithodes bronwynae) previously unknown in the North Pacific. Overall, the diversity in the Emperor Seamount Chain region shows a relatively high level of endemism and a presence of species previously known from distant regions, suggesting that further biogeographical studies of the region and surrounding areas may elucidate migration routes.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Deep-sea Research Part Ii-topical Studies in Oceanography 地学-海洋学

CiteScore

6.40

自引率

16.70%

发文量

115

审稿时长

3 months

期刊介绍： Deep-Sea Research Part II: Topical Studies in Oceanography publishes topical issues from the many international and interdisciplinary projects which are undertaken in oceanography. Besides these special issues from projects, the journal publishes collections of papers presented at conferences. The special issues regularly have electronic annexes of non-text material (numerical data, images, images, video, etc.) which are published with the special issues in ScienceDirect. Deep-Sea Research Part II was split off as a separate journal devoted to topical issues in 1993. Its companion journal Deep-Sea Research Part I: Oceanographic Research Papers, publishes the regular research papers in this area.