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Identification of a nursery area for the critically endangered hammerhead shark
Identification of a nursery area for the critically endangered hammerhead shark (Sphyrna lewini ) amid intense fisheries in the southern Gulf of Mexico G.A. Cuevas‐Gómez, J.C. Pérez‐Jiménez, I. Méndez‐Loeza, M. Carrera‐Fernández, J.L. Castillo‐Géniz ABSTRACT: Since the 1980s, there has been growing concern in the Mexican Atlantic regarding high catches of neonate and juvenile sharks in
Beach-user perceptions and attitudes towards drone surveillance as a shark-bite mitigation tool
Beach-user perceptions and attitudes towards drone surveillance as a shark-bite mitigation tool Debra Stokes, Kirin Apps, Paul A. Butcher, Betty Weiler, Hanabeth Luke, Andrew P. Colefax ABSTRACT: Management of human-wildlife conflict is often challenging and complex, particularly when the conflict involves sharks. New technologies are being trialled in New South Wales, on Australia’s east coast,
Biodiversity and conservation of marine elasmobranchs in the extreme south of the Brazil
Biodiversity and conservation of marine elasmobranchs in the extreme south of the Brazil, Southwestern Atlantic Luiza de David Chelotti, Paulo Roberto Santos dos Santos ABSTRACT: The extreme south of Brazil, Southwestern Atlantic, presents a vast and interesting history of elasmobranchs occurrence records. This is a transition zone between warm tropical waters cold regions, which reflects
Elasmobranch Community Dynamics in Florida’s Southern Indian River Lagoon
Elasmobranch Community Dynamics in Florida’s Southern Indian River Lagoon Grace Roskar, Michael P. McCallister, Adam M. Schaefer, Matthew J. Ajemian ABSTRACT: Many elasmobranch species utilize estuaries as nurseries, parturition areas, and foraging grounds. Florida’s Indian River Lagoon (IRL), an “estuary of national significance,” has experienced many anthropogenic impacts in recent decades, such as habitat degradation
Drone imaging of elasmobranchs
Drone imaging of elasmobranchs: Whale sharks and golden cownose rays co-occurrence in a zooplankton hot-spot in southwestern Sea of Cortez Martín G.Frixione, Miguel de J .Gómez García, Marco F.W. Gauger ABSTRACT: The golden cownose ray (Rhinoptera steindachneri) and the whale shark (Rhincodon typus) are two elasmobranch species commonly found in Bahía de La Paz, Baja
Movement patterns and habitat use of tiger sharks across ontogeny in the Gulf of Mexico
Movement patterns and habitat use of tiger sharks (Galeocerdo cuvier) across ontogeny in the Gulf of Mexico Matthew J. Ajemian, J. Marcus Drymon, Neil Hammerschlag, R. J. David Wells, Garrett Street, Brett Falterman, Jennifer A. McKinney, William B. Driggers III, Eric R. Hoffmayer, Christopher Fischer, Gregory W. Stunz ABSTRACT: The tiger shark (Galeocerdo cuvier) is
Mitigation of Elasmobranch Bycatch in Trawlers
Mitigation of Elasmobranch Bycatch in Trawlers: A Case Study in Indian Fisheries Gupta Trisha, Booth Hollie, Arlidge William, Rao Chetan, Manoharakrishnan Muralidharan, Namboothri Naveen, Shanker Kartik, Milner-Gulland E. J. ABSTRACT: Bycatch poses a significant threat to marine megafauna, such as elasmobranchs. India has one of the highest elasmobranch landings globally, through both targeted catch and
Future Distribution of Suitable Habitat for Pelagic Sharks in Australia Under Climate Change Models
Future Distribution of Suitable Habitat for Pelagic Sharks in Australia Under Climate Change Models Birkmanis Charlotte A., Freer Jennifer J., Simmons Leigh W., Partridge Julian C., Sequeira Ana M. M. ABSTRACT: Global oceans are absorbing over 90% of the heat trapped in our atmosphere due to accumulated anthropogenic greenhouse gases, resulting in increasing ocean temperatures.
Virtual Reality and Fear of Shark Attack
Virtual Reality and Fear of Shark Attack: A Case Study for the Treatment of Squalophobia Eric Malbos, George H. Burgess, Christophe Lancon ABSTRACT: Research treatment protocols are rare regarding an unusual anxiety disorder, namely the fear of sharks (squalophobia). As a possible solution, the effectiveness of virtual reality (VR) exposure therapy for this phobia was
Identification and Delineation of Essential Habitat for Elasmobranchs in Estuaries on the Texas Coast
Identification and Delineation of Essential Habitat for Elasmobranchs in Estuaries on the Texas Coast Swift, D.G., Portnoy, D.S. ABSTRACT: Essential habitat is required for a given species to complete its lifecycle and includes habitat for breeding, feeding, and growth. Estuaries provide essential habitat for many fishes, including elasmobranchs, particularly as nurseries. Shore-based, gillnet surveys have
Regional Movements of Reef Manta Rays in Seychelles Waters
Regional Movements of Reef Manta Rays (Mobula alfredi) in Seychelles Waters Lauren R. Peel, Guy M. W. Stevens, Ryan Daly, Clare A. Keating Daly,Shaun P. Collin, Josep Nogués, Mark G. Meekan ABSTRACT: The decline in numbers of reef manta rays (Mobula alfredi) throughout their range has highlighted the need for improved information on their spatial
New Distributional Record of Hasselt’s Bamboo Shark from Bangladesh Waters
New Distributional Record of Hasselt’s Bamboo Shark Chiloscyllium hasseltii (Orectolobiformes: Hemiscylliidae) from Bangladesh Waters Sujan Kumar Datta, Tonmoy Saha, Nusrat Jahan Sanzida, Sumaiya Ahmed, Md. Anwarul Azim Akhand, Md. Sagir Ahmed ABSTRACT: A new record of Hasselt’s bamboo shark Chiloscyllium hasseltii (Orectolobiformes: Hemiscylliidae) has been confirmed from the St. Martin’s Island, the northeastern part of
Shark infested internet: an analysis of internet-based media reports on rare and large sharks of Turkey
Shark infested internet: an analysis of internet-based media reports on rare and large sharks of Turkey Kabasakal H., Bilecenoglu M. ABSTRACT: Following a survey of the internet-based media sources, 268 specimens of sharks representing 10 families, 16 species, as well as 2 genera, were identified from Turkish seas. The majority of the identified species is
Behavioural responses of white sharks to specific baits during cage diving ecotourism
Behavioural responses of white sharks to specific baits during cage diving ecotourism Edgar E. Becerril-García, Edgar M. Hoyos-Padilla, Primo Micarelli, Felipe Galván-Magaña, Emilio Sperone ABSTRACT: This study describes the effect of different baits on the attraction, surface behaviour and conditioning of white sharks Carcharodon carcharias during local ecotourism activities. The sightings, behaviours, and pictures used
Morphological and functional development of the spiral intestine in cloudy catshark
Morphological and functional development of the spiral intestine in cloudy catshark (Scyliorhinus torazame) Yuki Honda, Wataru Takagi, Marty K. S. Wong, Nobuhiro Ogawa, Kotaro Tokunaga, Kazuya Kofuji, Susumu Hyodo ABSTRACT: Cartilaginous fish have a comparatively short intestine known as the spiral intestine that consists of a helical spiral of intestinal mucosa. However, morphological and functional