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Biological parameters and spatial segregation patterns in sharks from the North Aegean Sea, Greece
Biological parameters and spatial segregation patterns in sharks from the North Aegean Sea, Greece Dimitrios Karampetsis, Chrysoula Gubili, Konstantinos Touloumis, Angeliki Adamidou, Stelios Triantafillidis, Athanasios Evangelopoulos, Ioannis E. Batjakas, Nikolaos Kamidis and Emmanouil Koutrakis ABSTRACT: Context: Sharks are frequently caught as bycatch in trawl fisheries in the North Aegean Sea. However, very little information exists
Bathyraja chapmani n. sp., a new deep-sea skate from the Southeast Pacific Ocean
Bathyraja chapmani n. sp., a new deep-sea skate (Rajiformes: Arhynchobatidae) from the Southeast Pacific Ocean Ebert, David A.; Alfaro-Shigueto, Joanna; Velez-Zuazo, Ximena; Pajuelo, Mariela; Mangel, Jeffrey C. ABSTRACT: A new species of softnose skate, Bathyraja chapmani n. sp., is described from two female specimens collected in deepwater off Lima, Peru (-11.933°, -78.15°), in the southeastern
An Annotated Checklist and the Conservation Status of Chondrichthyans in the Adriatic
An Annotated Checklist and the Conservation Status of Chondrichthyans in the Adriatic Alen Soldo, Lovrenc Lipej ABSTRACT: Although there is a high number of publications listing fish species in the Adriatic, only a few have focused on chondrichthyans, while their conservation status has been investigated even less. Thus, this paper aims to provide an updated
Shark Bite Reporting and The New York Times
Shark Bite Reporting and The New York Times Christopher L. Pepin-Neff ABSTRACT: The social and political dynamics around human–shark interactions are a growing area of interest in marine social science. The question motivating this article asks to what extent media reporting by The New York Times has engaged beyond the lexicon of “shark attack” discourse
Utilization and trade of sharks and rays in the Andaman Islands, India
Utilization and trade of sharks and rays in the Andaman Islands, India Zoya Tyabji, Rima W. Jabado, Dipani Sutaria ABSTRACT: Overfishing is recognized as the most pervasive threat to sharks and rays globally. While there is increasing emphasis on ecological aspects of shark and ray fisheries, socio-economic considerations are often poorly incorporated into management policies.
Capture heats up sharks
Capture heats up sharks Lucy Harding, Austin Gallagher, Andrew Jackson, Jenny Bortoluzzi, Haley R Dolton, Brendan Shea, Luke Harman, David Edwards, Nicholas Payne ABSTRACT: Catch-and-release fishing is an important component of ecotourism industries and scientific research worldwide, but its total impact on animal physiology, health and survival is understudied for many species of fishes, particularly
Extremely low sample size allows age and growth estimation in a rare and threatened shark
Extremely low sample size allows age and growth estimation in a rare and threatened shark Peter M. Kyne, Jonathan J. Smart, Grant Johnson ABSTRACT: Understanding life history parameters is key to assessing biological productivity, extinction risk, and informing the management of exploited fish populations. Age-and-growth analyses in chondrichthyan fishes (sharks, rays, and ghost sharks) is
An overview on elasmobranch release as a bycatch mitigation strategy
An overview on elasmobranch release as a bycatch mitigation strategy Natascha Wosnick, Eloísa Pinheiro Giareta, Renata Daldin Leite, Ingrid Hyrycena, Patricia Charvet ABSTRACT: Sharks and rays are among the most threatened vertebrates, mostly due to commercial fisheries. Data on incidental capture is sparse, but it is estimated that about 50% of reported global catches of
Genital mycobacteriosis caused by Mycobacterium marinum detected in two captive sharks
Genital mycobacteriosis caused by Mycobacterium marinum detected in two captive sharks by peptide nucleic acid–fluorescence in situ hybridization Mari Inohana, Takeshi Komine, Yoshiaki Tanaka, Osamu Kurata, Shinpei Wada ABSTRACT: Mycobacterium marinum is a prevalent nontuberculous mycobacterium (NTM)-infecting teleosts. Conversely, little is known about mycobacteriosis in elasmobranchs, and M. marinum infection has never been reported from the
Bioapatite in shark centra studied by wide-angle and by small-angle X-ray scattering
Bioapatite in shark centra studied by wide-angle and by small-angle X-ray scattering J. S. Park, J. D. Almer, K. C. James, L. J. Natanson, S. R. Stock ABSTRACT: Members of subclass Elasmobranchii possess cartilage skeletons; the centra of many species are mineralized with a bioapatite, but virtually nothing is known about the mineral’s organization. This
Screening and Characterization of Shark-Derived VNARs against SARS-CoV-2 Spike RBD Protein
Screening and Characterization of Shark-Derived VNARs against SARS-CoV-2 Spike RBD Protein Chen, Yu-Lei, Jin-Jin Lin, Huan Ma, Ning Zhong, Xin-Xin Xie, Yunru Yang, Peiyi Zheng, Ling-Jing Zhang, Tengchuan Jin, Min-Jie Cao ABSTRACT: The receptor-binding domain (RBD) of the SARS-CoV-2 spike protein is the major target for antibody therapeutics. Shark-derived variable domains of new antigen receptors
Sharks Provide Evidence for a Highly Complex TNFSF Repertoire in the Jawed Vertebrate Ancestor
Sharks Provide Evidence for a Highly Complex TNFSF Repertoire in the Jawed Vertebrate Ancestor Anthony K. Redmond, Rita Pettinello, Fiona K. Bakke, Helen Dooley ABSTRACT: Cytokines of the TNF superfamily (TNFSF) control many immunological processes and are implicated in the etiology of many immune disorders and diseases. Despite their obvious biological importance, the TNFSF repertoires
Growth, reproduction, and age at maturity of Lessa’s butterfly ray
Growth, reproduction, and age at maturity of Lessa’s butterfly ray Gymnura lessae in the northern Gulf of Mexico Matthew B. Jargowsky, Bryan L. Huerta-Beltrán, Matthew J. Ajemian, Michael E. Colvin, J. Marcus Drymon ABSTRACT: In the northern Gulf of Mexico, batoids are caught as bycatch in the shrimp trawl fishery and targeted by recreational bowfishers.
Placoid scales in bioluminescent sharks
Placoid scales in bioluminescent sharks: Scaling their evolution using morphology and elemental composition Alexia Lourtie, Laurent Duchatelet, Nicolas Straube, Nathan Puozzo, Mark A. Grace, Gavin J. P. Naylor, Jérôme Delroisse ABSTRACT: Elasmobranchs are characterised by the presence of placoid scales on their skin. These scales, structurally homologous to gnathostome teeth, are thought to have various
Putting sharks on the map: A global standard for improving shark area-based conservation
Putting sharks on the map: A global standard for improving shark area-based conservation Ciaran A. Hyde, Giuseppe Notarbartolo di Sciara, Lynn Sorrentino, Charlotte Boyd, Brittany Finucci, Sarah L. Fowler, Peter M. Kyne, Guido Leurs, Colin A. Simpfendorfer, Michael J. Tetley, Freya Womersley, Rima W. Jabado ABSTRACT: Area-based conservation is essential to safeguard declining biodiversity. Several