Northernmost record in the Bay of Biscay (northeastern Atlantic) of two leptothecate hydroids (Cnidaria: Hydrozoa) of southern affinity

IF 2.2 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Journal of Marine Systems Pub Date : 2026-01-01 Epub Date: 2025-11-15 DOI:10.1016/j.jmarsys.2025.104158

Álvaro Altuna , Marie-Noëlle de Casamajor , Ana de la Torriente , Stephane Sartoretto , Benoit Gouillieux , Alberto Serrano

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引用次数: 0

Abstract

Two leptothecate hydroids of southern affinity, Sertularella ornata Broch, 1933 and Sertularelloides cylindritheca (Allman, 1888) were collected in the southern sector of the Bay of Biscay off Saint Jean de Luz (France). The latter was also seen during several ROV surveys on rocky communities along the Cantabrian Sea and northwestern Spain. Each of the two species is herein described and illustrated and their worldwide distribution, bathymetric ranges and reproductive periods, revised; additionally, we allocate them in their biocoenological context, providing in situ images. The northern boundary limits are extended for both hydroids, which are new records for the Atlantic coast of France; the latter belongs to a genus previously unrecorded in the French mainland fauna. We also discuss the importance of having inventories of the sessile fauna of the exceptional sites at study, for the sake of their protection and detection of future modifications due to climate change.

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比斯开湾（大西洋东北部）最北端有两种具有南部亲缘关系的细尾类水螅（刺胞纲：水螅纲）的记录

在法国圣让德卢兹附近的比斯开湾南部海域采集到两种具有南部亲缘关系的细尾鱼，Sertularella ornata Broch， 1933年和Sertularelloides圆柱形鱼（Allman， 1888年）。在Cantabrian海和西班牙西北部的岩石社区进行的几次ROV调查中也发现了后者。本文对这两个物种中的每一个进行了描述和说明，并对它们的世界分布、水深范围和繁殖周期进行了修订；此外，我们在其生物群落背景下分配它们，提供原位图像。两种流体的北部边界范围都有所扩大，这是法国大西洋沿岸的新记录；后者属于一个以前在法国大陆动物群中没有记录的属。我们还讨论了对研究中特殊地点的无根动物进行清单的重要性，以保护它们并检测未来因气候变化而引起的变化。

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

Journal of Marine Systems 地学-地球科学综合

CiteScore

6.20

自引率

3.60%

发文量

审稿时长

6 months

期刊介绍： The Journal of Marine Systems provides a medium for interdisciplinary exchange between physical, chemical and biological oceanographers and marine geologists. The journal welcomes original research papers and review articles. Preference will be given to interdisciplinary approaches to marine systems.