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Distribution and comments on the morphology of Centroscymnus owstonii Garman, 1906 (Squaliformes: Somniosidae), with focus on its occurrence in the Indian Ocean

Citation

Weigmann, S and Vaz, DFB and White, WT and de Carvalho, MR and Thiel, R, Distribution and comments on the morphology of Centroscymnus owstonii Garman, 1906 (Squaliformes: Somniosidae), with focus on its occurrence in the Indian Ocean, Marine Biodiversity: international journal of marine science, 46, (3) pp. 641-653. ISSN 1867-1616 (2016) [Refereed Article]

Copyright Statement

Copyright 2015 Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg

DOI: doi:10.1007/s12526-015-0413-x

Abstract

The Roughskin Dogfish Centroscymnus owstonii is one of the most widespread deepwater shark species, but its global distribution is mostly based on patchy records. In this study, C. owstonii was reinvestigated with focus on its poorly known distribution in the western and eastern Indian Ocean. Previous records of the species from the Seychelles, which, for decades, were considered to be of a different species, were verified in this study. Furthermore, the first records from off Reunion Island, Madagascar, and Indonesia are provided, including the smallest free-swimming specimen of the species described in detail to date. Based on these specimens, a description of C. owstonii is given with updated and extended morphometric data, photographic documentation and scanning electron microscopy (SEM) images of dermal denticles. Additionally, specimens from the Indian Ocean are compared with specimens from the Pacific and Atlantic Oceans. For the Pacific Ocean, the first record from the central western North Pacific is provided from the Hawaiian-Emperor seamount chain. This record also represents the most open ocean known occurrence of C. owstonii.

Item Details

Item Type:Refereed Article
Keywords:chondrichthyes, roughskin dogfish, deepwater, Western Indian Ocean, Indonesia
Research Division:Biological Sciences
Research Group:Evolutionary Biology
Research Field:Animal Systematics and Taxonomy
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
Author:White, WT (Dr William White)
ID Code:118338
Year Published:2016
Web of Science® Times Cited:1
Deposited By:IMAS - Directorate
Deposited On:2017-07-10
Last Modified:2017-10-17
Downloads:0

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