Report of the crocodile shark Pseudocarcharias kamoharai (Matsubara, 1936) from deep waters of the Andaman Sea

Pradeep, H. D.; Swapnil, S. Shirke; Ramachandran, S.; Pattnayak, S. K.

doi:10.1007/s12526-016-0499-9

Cited by 11 publications

(5 citation statements)

References 9 publications

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“…The presently reported investigation disclosed new distributional records of sharks Heptranchias perlo, Hexanchus griseus and Echinorhinus brucus from the region and confirmed the occurrence of Neoharriotta pinnata from Andaman waters. Rajan et al (2012) has enlisted 64 species of chondrichthyans, subsequently several new sharks and batoids were recorded from exploratory surveys and monitoring catch landing of commercial fishing vessesls operated in the region and landed in A&N, Islands, India (Rajan et al 2013, 2016, Devi and Kumaralingam 2014Kumar et al 2015, 2016, Pradeep et al 2016, 2018, Vinu et al 2017 and one recent noteworthy study from the region added 12 sharks to Andaman fauna and added 2 sharks to Indian elasmobranch fauna (Tyabji et al 2018). However, these studies does not include currently reported species.…”

Section: Discussionmentioning

confidence: 99%

“…Except for checklists and few new reports from waters around the Andaman and Nicobar Islands of India (Soundararajan and Roy 2004, Rajan et al 2012, 2013, 2016, Devi and Kumaralingam 2014 chondrichthyan diversity of this region is poorly known. However, considering large information gap in the region more concentrated studies are being conducted in the recent past and several ongoing studies are providing better understanding of faunal diversity, fishery trends and improved catch and species composition (Kumar et al 2015, 2016, Pradeep et al 2016,2018, Vinu et al 2017, Tyabji et al 2018.There is an urgent need to explore this biodiversity hotspot for its better understanding and for conservation actions. Perpetual efforts for documentation of the diversity and updating the checklists with correctly identified species are important for conservation and management of the vulnerable fauna.…”

Section: Introductionmentioning

confidence: 99%

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First report of four deep-sea chondrichthyans (Elasmobranchii and Holocephali) from Andaman waters, India with an updated checklist from the region

Kumar¹,

Venu²,

Akhilesh³

et al. 2018

Acta Ichthyol. Piscat.

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This paper confirms the new distributional records of four rare deep-water chondrichthyans viz. sharpnose sevengill shark, Heptranchias perlo (Bonnaterre, 1788); bluntnose sixgill shark, Hexanchus griseus (Bonnaterre, 1788); bramble shark, Echinorhinus brucus (Bonnaterre, 1788); and sicklefin chimaera, Neoharriotta pinnata (Schnakenbeck, 1931) from the Andaman waters in the Indian EEZ. The above-mentioned four fish species have not been reported earlier from this region. More exploratory surveys in the region are essential to understand the diversity and distribution pattern which is essential for critical management actions. An updated checklist of chondrichthyans known from Andaman and Nicobar waters of India is also presented.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

First report of four deep-sea chondrichthyans (Elasmobranchii and Holocephali) from Andaman waters, India with an updated checklist from the region

Kumar¹,

Venu²,

Akhilesh³

et al. 2018

Acta Ichthyol. Piscat.

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“…Additionally, since different species can exhibit geographic variability in biological traits, such as size at birth, size at maturity, maximum size, litter size, and breeding cycle [24][25][26], it is important to undertake region-specific studies so they can inform local management strategies. Most literature on sharks and rays from the Andaman and Nicobar Islands has been limited to species identification and taxonomy [27][28][29][30][31][32]. A large knowledge gap exists in our understanding of the catch composition of commercial species landed, their population trends and biological characteristics across seasons.…”

Section: Introductionmentioning

confidence: 99%

Catch composition and life history characteristics of sharks and rays (Elasmobranchii) landed in the Andaman and Nicobar Islands, India

et al. 2020

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Detailed information on shark and ray fisheries in the Andaman and Nicobar Islands, India are limited, including information on the diversity and biological characteristics of these species. We carried out fish landing surveys in South Andamans from January 2017 to May 2018, a comprehensive and cost-effective way to fill this data gap. We sampled 5,742 individuals representing 57 shark and ray species landed from six types of fishing gears. Of the 36 species of sharks and 21 species of rays landed, six species of sharks ( Loxodon macrorhinus , Carcharhinus amblyrhynchos , Sphyrna lewini , C . albimarginatus , C . brevipinna , and Paragaleus randalli) comprised 83.35% of shark landings, while three species of rays ( Pateobatis jenkinsii , Himantura leoparda and H . tutul ) comprised 48.82% of ray landings, suggesting a species dominance in the catch or fishing region. We provide insights into the biology of species with extensions in maximum size for seven shark species. Additionally, we document an increase in the known ray diversity for the islands and for India with three previously unreported ray species. We found that amongst sharks, mature individuals of small-bodied species (63.48% males of total landings of species less than 1.5 m total length when mature) and immature individuals of larger species (84.79% males of total landings of species larger than 1.5 m total length when mature) were mostly landed; whereas for rays, mature individuals were predominantly landed (80.71% males of total landings) likely reflecting differences in habitat preferences along life-history stages across species and fishing gear. The largest size range in sharks was recorded in landings from pelagic longlines and gillnets. Further, the study emphasizes the overlap between critical habitats and fishing grounds, where immature sharks and gravid females were landed in large quantities which might be unsustainable in the long-term. Landings were female-biased in C . amblyrhynchos , S . lewini and P . jenkinsii , and male-biased in L . macrorhinus and H . leoparda , indicating either spatio-temporal or gear-specific sexual segregation in these species. Understanding seasonal and biological variability in the shark and ray landings over a longer study period across different fisheries will inform future conservation and fishery management measures for these species in the Andaman and Nicobar Islands.

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“…The recent marine fish faunal studies from the Islands (Kumar et al, 2015(Kumar et al, , 2016(Kumar et al, , 2018Pradeep et al, 2016Pradeep et al, , 2017Pradeep et al, , 2018Vinu et al, 2017;Shirke et al, 2017;Tyabji et al, 2018) Fifteen new records of Batoids (Elasmobranchii) from waters off Andaman and Nicobar Islands, India recorded higher diversity in the landings and exploratory surveys. These studies will support future fisheries management in the Islands and improve India's compliance to Convention of Biodiversity (CBD) in documenting its fauna.…”

Section: Introductionmentioning

confidence: 99%

Fifteen new records of Batoids (Elasmobranchii) from waters off Andaman and Nicobar Islands, India

Bineesh¹,

Andaman²,

Kumar³

et al. 2020

J. Mar. Biol. Ass. India

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Marine waters of Andaman and Nicobar Islands, India in the tropical Indian Ocean, is a poorly explored high faunal diverse region. The present study documents new records of batoids from the region, identified during the fishery and diversity monitoring surveys conducted during November 2016 to June 2019 at different fish landing centers of Andaman and Nicobar Islands. Fifteen elasmobranch species including 2 wedgefishes, 1 skate and 12 rays were identified and confirmed as new reports for the region. Results of this study indicate that the elasmobranch diversity, especially batoid diversity of Andaman and Nicobar Islands are poorly documented and future systematic surveys including that of deeper reef habitat may help to explore the diversity in the region.

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Report of the crocodile shark Pseudocarcharias kamoharai (Matsubara, 1936) from deep waters of the Andaman Sea

Cited by 11 publications

References 9 publications

First report of four deep-sea chondrichthyans (Elasmobranchii and Holocephali) from Andaman waters, India with an updated checklist from the region

First report of four deep-sea chondrichthyans (Elasmobranchii and Holocephali) from Andaman waters, India with an updated checklist from the region

Catch composition and life history characteristics of sharks and rays (Elasmobranchii) landed in the Andaman and Nicobar Islands, India

Fifteen new records of Batoids (Elasmobranchii) from waters off Andaman and Nicobar Islands, India

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