Population genetics of the fiddler crab Uca sindensis (Alcock, 1900) (Crustacea: Brachyura: Ocypodidae) from the Arabian Sea

• Published in: Zoological Studies Vol. 54; no. 1; pp. 4 - 13
• Main Authors: Shih, Hsi-Te, Saher, Noor Us, Kamrani, Ehsan, Ng, Peter KL, Lai, Yu-Ching, Liu, Min-Yun
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg 中央研究院生物多樣性研究中心 01.01.2015; Springer Berlin Heidelberg; BioMed Central Ltd; Biodiversity Research Center, Academia Sinica
• Subjects: Biomedical and Life Sciences; Life Sciences; Zoology; 16S rRNA; Uca sindensis; Phylogeography; Control region; Arabian Sea; Persian Gulf; COI
• ISSN: 1021-5506; 1810-522X; 1810-522X
• DOI: 10.1186/s40555-014-0078-3

Background The fiddler crab Uca sindensis (Alcock, 1900) (Crustacea: Brachyura: Ocypodidae) is distributed in the northern coasts of the Arabian Sea (Pakistan, Iran, Iraq, and Kuwait). Its typical habitat is on high intertidal areas with higher salinity, which might restrict its distribution, especially within the Persian Gulf. The purpose of the present phylogeographic study is to understand whether the Strait of Hormuz acts as a barrier to the gene flow of this species. Results The genetic analyses of the mitochondrial 16S rRNA, cytochrome oxidase subunit I (COI), and control region (CR) of specimens from various localities showed that there was no genetic differentiation between the populations inside and outside of the Persian Gulf. Conclusions We conclude that the narrow Strait of Hormuz does not form a barrier for the larval dispersal in this species. Its restricted distribution in the northern Arabian Sea may instead be associated with its preference for higher salinity sediments present in the coasts of this region.