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India: Shark, Red Sea Torpedo and Tentacled Butterfly Ray may have become extinct, fear scientists by K.S. Sudhi October 12,2017   |  Source: The Hindu

Three marine species, the Pondicherry Shark, the Red Sea Torpedo and the Tentacled Butterfly Ray might have become possibly extinct in the oceanic waters of the Arabian Seas Region (ASR) since no evidence of its existence has surfaced in the last three decades. Scientists are also worried about the possible disappearance of other species from the region even before they were known to science. The first ever assessment of the conservation status of sharks, rays, and chimaeras (collectively called chondrichthyans) in the region has left the scientists grim-faced as 78 of the 153 species revived were found fighting for survival.

The Guitar fish found in coastal waters of Kerala and Tamil Nadu and the Ganges Shark found in Arabian Sea were classified as Critically Endangered, among others. The “extinction risk and conservation status of all chondrichthyans naturally reproducing” in the region were reviewed by the IUCN Species Survival Commission Shark Specialist Group. Though 184 species of sharks, rays, and chimaeras occur in the region, only the confirmed 153 species were considered for the analysis.

The ASR covers the waters of the Red Sea, Gulf of Aden, Arabian Sea, Sea of Oman, and the Gulf. The region is also bordered by 20 countries including India, Bahrain, Egypt,

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