Larval development of the brush-clawed shore crab Hemigrapsus takanoi Asakura & Watanabe, 2005 (Decapoda, Brachyura, Varunidae)
Larval development of the brush-clawed shore crab Hemigrapsus takanoi Asakura & Watanabe, 2005 (Decapoda, Brachyura, Varunidae)
复制标题
刷爪蟹 Hemigrapsus takanoi Asakura 的幼体发育
DOI：
10.1017/s002531541900002x
复制
发表时间：
2019
影响因子：
1.2
通讯作者：
Tanaka Yuji
中科院分区：
文献类型：
--
作者：
Landeira Jose M.;Cuesta Jose A.;Tanaka Yuji
高野半海岸蟹（英语：Hemigrapsus takanoi）是一种原产于西太平洋的物种，也是从西班牙北方到丹麦南部的欧洲大西洋沿岸的入侵者。尽管人们越来越关注它的快速扩张，但对其生活史的早期阶段知之甚少。本研究对该虫的幼虫形态进行了观察。高野氏的描述和说明来自其模式产地，日本东京湾，在实验室获得的标本。其幼虫发育遵循Varunidae的模式，涉及五个Zoeae和一个Megalopa。本文报道了该虫幼虫的形态特征。takanoi与北太平洋其他已知的半笔石属物种进行了比较。此外，为了便于早期检测的入侵物种Varunidae栖息在欧洲大西洋沃茨，总结的关键字符，以确定其幼虫阶段。
The brush-clawed shore crab Hemigrapsus takanoi is a native species from the Western Pacific and an invader of the European Atlantic coast from northern Spain to southern Denmark. Despite the increasing concern about its rapid expansion, little is known about the early stages in its life history. In the present study, the larval morphology of H. takanoi is described and illustrated from specimens obtained in the laboratory from its type locality, Tokyo Bay, Japan. Its larval development follows the pattern of Varunidae, that involves five zoeae and one megalopa. The morphological characters of the larvae of H. takanoi are compared with those of the other known Hemigrapsus species of the North Pacific. In addition, to facilitate an early detection of the invasive species of Varunidae inhabiting European Atlantic waters, a summary of the key characters to identify their larval stages is included.