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Shark Diversity in the Arabian/Persian Gulf Higher Than Previously Thought: Insights Based on Species Composition of Shark Landings in the United Arab Emirates
Marine Biodiversity
  • Rima W. Jabado, United Arab Emirates University, Gulf Elasmo Project - Dubai
  • Saif M. Al Ghais, United Arab Emirates University
  • Waleed Hamza, United Arab Emirates University
  • Mahmood S. Shivji, Nova Southeastern University
  • Aaron C. Henderson, Center for Marine Resource Studies - Turks and Caicos Islands
Document Type
Article
Publication Date
10-28-2014
Keywords
  • Shark,
  • Species richness,
  • United Arab Emirates,
  • Management,
  • Conservation
Peer Reviewed
1
Abstract

Although fish fauna in the Arabian/Persian Gulf have been studied for decades, shark diversity has only been recently investigated in the region. Here, we present a first comprehensive account of shark diversity from the United Arab Emirates based on fishery-dependent data collected at market and landing sites over a two-year period of field sampling. Landings across the country were dominated by carcharhinids, and six species were found to be most abundant, including the spot-tail shark, Carcharhinus sorrah, and the milk shark, Rhizoprionodon acutus, contributing 31.8 % and 29.9 %, respectively, of the total number of sharks. While observed landings varied among regions and across seasons, results showed that shark landings were dominated by small-sized species, which may be a reflection of overexploitation. We are now expanding the existing checklist of shark species in the Persian Gulf from 27 to 31, having utilized both morphological identification and genetic barcoding in validating the existence of the grey bamboo shark, Chiloscyllium griseum; the tawny nurse shark, Nebrius ferrugineus; the silky shark, Carcharhinus falciformis; and the sandbar shark, Carcharhinus plumbeus, in these waters. This inventory provides an urgently needed assessment of current regional diversity patterns that can now be used as a baseline for future investigations evaluating the effect of fisheries on shark populations. Results emphasize the need for research on life history traits of the various species in order to determine their regional conservation status, but also reveal that a precautionary approach to conservation will be necessary to mitigate anthropogenic impacts.

Comments

© Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2014

ResearcherID
G-4080-2013
DOI
10.1007/s12526-014-0275-7
Citation Information
Rima W. Jabado, Saif M. Al Ghais, Waleed Hamza, Mahmood S. Shivji, et al.. "Shark Diversity in the Arabian/Persian Gulf Higher Than Previously Thought: Insights Based on Species Composition of Shark Landings in the United Arab Emirates" Marine Biodiversity (2014) ISSN: 1867-1616
Available at: http://works.bepress.com/mahmood-shivji/98/