用几何形态计量学方法揭示了太平洋东南海岸一种隐种(双壳纲:舌科)

IF 0.8 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY

Scientia Marina Pub Date : 2022-06-15 DOI:10.3989/scimar.05241.032

J. Signorelli, B. Trovant, F. Márquez

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引用次数: 0

摘要

根据几何形态计量学，揭示了南美洲太平洋沿岸的一个新的隐变型Ensis。Ensis macha（莫利纳，1782）是南美洲最重要的贝类资源之一。从大西洋上的阿根廷圣马蒂亚斯湾到太平洋上的秘鲁海岸，历史上都有报道。最近的一项研究分析了该物种在其分布范围内的种内变异，遗传结果表明存在隐性多样性。发现了两个进化支：一个南部支（来自冷温带水域）和一个北部支（来自暖温带水域）。基于几何形态计量学的新结果支持了Ensis loboin的描述。sp。由于E。智利奇洛埃的马查。Ensis loboi的描述。sp.对该类群未来的渔业管理和生物地理辐射研究具有重要意义。

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A cryptic species of Ensis (Bivalvia: Pharidae) from the southeastern Pacific coast revealed by geometric morphometric methods

A new cryptic species of Ensis from the Pacific coast of South America based on geometric morphometrics is revealed. Ensis macha (Molina, 1782) is one of the most important shellfish resources in South America. It was historically reported from San Matías Gulf, Argentina in the Atlantic Ocean to the Peruvian coast in the Pacific. A recent study analysed the intraspecific variation of this species along its distribution range and the genetic results indicated the presence of cryptic diversity. Two evolutionary clades were found: a southern clade (from cold-temperate waters) and a northern clade (from warm-temperate waters). New results based on geometric morphometrics supported the description of Ensis loboi n. sp. for the northern clade. The southern clade retains the name due to type locality of E. macha in Chiloé, Chile. The description of Ensis loboi n. sp. for the southeastern Pacific Ocean has important implications for future studies focused on fisheries management and biogeographical radiation of the group.

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来源期刊

Scientia Marina 生物-海洋与淡水生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.