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- Title
Taxonomic assessment of sharks, rays and guitarfishes ( Chondrichthyes: Elasmobranchii) from south-eastern Arabia, using the NADH dehydrogenase subunit 2 ( NADH2) gene.
- Authors
Henderson, Aaron C.; Reeve, Alan J.; Jabado, Rima W.; Naylor, Gavin J. P.
- Abstract
An 829-bp fragment of the NADH dehydrogenase subunit 2 ( NADH2) gene was used to assess the taxonomic status of 1487 elasmobranch specimens, representing 52 putative species. Strong evidence was found for the existence of an undescribed E chinorhinus species and for cryptic speciation within R hynchobatus djiddensis. The results also provide strong molecular support for the existence of two previously reported, but undescribed, guitarfish species. Potential, but less conclusive, cryptic lineage diversification was also noted in C archarhinus leucas, L oxodon macrorhinus, I ago omanensis and G ymnura poecilura. A complex situation was found in the genus H imantura, with potentially three distinct lineages evident, one of which is probably an undescribed species, in the H . gerrardi complex. One dasyatid specimen could not be identified, but appears to be closely related to D asyatis ushiei, while H imantura leoparda and C archarhinus longimanus are reported from Oman for the first time. The results of the present study also reinforce previously reported geographical divisions within certain putative species, which has important implications for fishery management and conservation. © 2015 The Linnean Society of London
- Subjects
SHARKS; GUITARFISHES; CHONDRICHTHYES; NADH dehydrogenase; RAJIFORMES
- Publication
Zoological Journal of the Linnean Society, 2016, Vol 176, Issue 2, p399
- ISSN
0024-4082
- Publication type
Article
- DOI
10.1111/zoj.12309