Arbacia spatuligera Valenciennes, 1846（Arbacioida, Echinoidea）的新形态描述以及智利中部海岸中生珊瑚礁的水深测量范围扩展

IF 1.1 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Journal of the Marine Biological Association of the United Kingdom Pub Date : 2024-05-10 DOI:10.1017/s0025315424000389

Rigoberto Moreno-Mendoza, Erwan Courville, Luis Enrique Angeles-Gonzalez, Julio Duarte, Marc Carulla, Daniel Malfanti-Bravo, Andrés Mena-Auladell, Thomas Saucède, Nuno Simões, Elie Poulin

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引用次数: 0

摘要

海胆 Arbacia spatuligera 是一种回声类动物，分布于从秘鲁到智利的东南太平洋。以前曾有报告称该物种分布在潮下带，水深可达 30 米。在这项工作中，使用闭路循环呼吸器在智利中部沿海的四个中生代珊瑚礁中发现了 128 个个体，技术潜水的深度比以前更高，从 36 米到 63 米不等。一个种群表现出意想不到的形态特征，需要对其诊断进行修正，并描述 A. spatuligera 的新形态型。这些形态特征被进一步讨论为潜在的生态表型适应。

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A new morphotype description of Arbacia spatuligera Valenciennes, 1846 (Arbacioida, Echinoidea) and bathymetric range extension from mesophotic reefs of the central coast of Chile

The sea urchin Arbacia spatuligera is an echinoid distributed in the Southeastern Pacific Ocean from Peru to Chile. This species was previously reported from the subtidal zone with a bathymetric distribution up to 30 m depth. In this work, 128 individuals were found in four mesophotic reefs along the central coast off Chile using closed-circuit rebreathers in technical diving at higher depths than previously, ranging from 36 to 63 m in depth. A population exhibits unexpected morphological characters, requiring an emended diagnosis and description of a new morphotype for A. spatuligera. These morphological traits are further discussed as potential ecophenotypic adaptations.

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来源期刊

Journal of the Marine Biological Association of the United Kingdom 生物-海洋与淡水生物学

CiteScore

2.30

自引率

8.30%

发文量

审稿时长

3-8 weeks

期刊介绍： JMBA is an international journal, publishing original research on all aspects of marine biology. It includes pioneering work taking place today on major issues concerning marine organisms and their environment. Subjects covered include: ecological surveys and population studies of marine communities; physiology and experimental biology; taxonomy, morphology and life history of marine animals and plants; and chemical and physical oceanographic work. Included with 2010 online subscriptions: Marine Biodiversity Records.