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Mercury screening in highly consumed sharpnose sharks
Mercury screening in highly consumed sharpnose sharks (Rhizoprionodon lalandii and R. porosus) caught artisanally in southeastern Brazil Catarina Amorim-Lopes, Isabel Q. Willmer, Nathan L. F. Araujo, Lucia Helena S. de S. Pereira, Fernanda Monteiro, Rafael C. C. Rocha, Tatiana D. Saint’Pierre, Luciano N. dos Santos, Salvatore Siciliano, Marcelo Vianna, Rachel Ann Hauser-Davis ABSTRACT: Sharpnose sharks
Effects of nasal parasite species in the small-spotted catshark
Effects of nasal parasite species in the small-spotted catshark Scyliorhinus canicula (Scyliorhinidae; Carcharhiniformes) Stefano Aicardi, Andrea Amaroli, Lorenzo Gallus, Sara Ferrando ABSTRAC: The presence of the parasitic copepod Neoalbionella globosa in the olfactory chamber of a specimen of the catshark Scyliorhinus canicula has been already reported in the literature, but this is the first record
Sharks and rays landed in the Andaman and Nicobar Islands, India
Catch composition and life history characteristics of sharks and rays (Elasmobranchii) landed in the Andaman and Nicobar Islands, India Zoya Tyabji, Tanmay Wagh, Vardhan Patankar, Rima W. Jabado, Dipani Sutaria ABSTRACT: Detailed information on shark and ray fisheries in the Andaman and Nicobar Islands, India are limited, including information on the diversity and biological characteristics
Coastal sharks supply the global shark fin trade
Coastal sharks supply the global shark fin trade Kyle S. Van Houtan, Tyler O. Gagné, Gabriel Reygondeau, Kisei R. Tanaka, Stephen R. Palumbi, Salvador J. Jorgensen ABSTRACT: Progress in global shark conservation has been limited by constraints to understanding the species composition and geographic origins of the shark fin trade. Previous assessments that relied on
Two gastrointestinal parasites in Mustelus mustelus from Adriatic Sea
Morphological and molecular characterization of two gastrointestinal parasites in Mustelus mustelus (Linnaeus, 1758) from Adriatic Sea P. Tedesco, A. Gustinelli, M. Caffara, A. Marsella, A. Toffan & M. L. Fioravanti ABSTRACT: Specimens of common smooth-hound, Mustelus mustelus, fished as bycatch in the Northwestern Adriatic Sea, were subjected to a complete parasitological examination. Parasites were processed
Shark-related injuries in Hawai’i treated at a level 1 trauma center
Shark-related injuries in Hawai’i treated at a level 1 trauma center Victoria A Scala, Michael S Hayashi, Jason Kaneshige, Elliott R Haut, Karen Ng, Sho Furuta ABSTRACT: Background Although rare, human–shark interactions can result in a wide spectrum of injuries. This is the first study to characterize shark-related injuries (SRIs) in Hawai’i. Methods This is
Shark conservation risks associated with the use of shark liver oil in SARS-CoV-2 vaccine development
Shark conservation risks associated with the use of shark liver oil in SARS-CoV-2 vaccine development Catherine Macdonald, Joshua Soll ABSTRACT: The COVID-19 pandemic may create new demand for wildlife-generated products for human health, including a shark-derived ingredient used in some vaccines. Adjuvants are a vaccine component that increases efficacy, and some adjuvants contain squalene, a
Endoskeletal mineralization in chimaera and a comparative guide to tessellated cartilage in chondrichthyan fishes
Endoskeletal mineralization in chimaera and a comparative guide to tessellated cartilage in chondrichthyan fishes (sharks, rays and chimaera) Ronald Seidel, Michael Blumer, Júlia Chaumel, Shahrouz Amini, Mason N. Dean ABSTRACT: An accepted uniting character of modern cartilaginous fishes (sharks, rays, chimaera) is the presence of a mineralized, skeletal crust, tiled by numerous minute plates called
Two gastrointestinal parasites in Mustelus mustelus from Adriatic Sea
Morphological and molecular characterization of two gastrointestinal parasites in Mustelus mustelus (Linnaeus, 1758) from Adriatic Sea P. Tedesco , A. Gustinelli , M. Caffara , A. Marsella , A. Toffan, M. L. Fioravanti ABSTRACT: Specimens of common smooth-hound, Mustelus mustelus, fished as bycatch in the Northwestern Adriatic Sea, were subjected to a complete parasitological examination.
Courtship behaviour, mating evidences and population structure of the Mobula tarapacana in a remote archipelago in the Equatorial Mid-Atlantic Ocean
Dancing with the devil: courtship behaviour, mating evidences and population structure of the Mobula tarapacana (Myliobatiformes: Mobulidae) in a remote archipelago in the Equatorial Mid-Atlantic Ocean Sibele Alves de Mendonça, Bruno César Luz Macena, Camila Brasilino Botêlho de Araújo, Natalia Priscila Alves Bezerra, Fabio Hissa Vieira Hazin ABSTRACT: The present work aimed at studying the
Parturition time for the Blacktip shark in Southwestern Atlantic
Parturition time for the Blacktip shark, Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae), in Southwestern Atlantic Jones Santander-Neto, Leandro Yokota, Thiago Silveira de Meneses ABSTRACT: The determination of the period of parturition and identification of nursery areas are fundamental for the management and conservation of a fishing resource. Through combination of monthly abundance, length measurements, and development time
Use of Small Cetaceans as Bait in Small-Scale Fisheries in Peru
Use of Small Cetaceans as Bait in Small-Scale Fisheries in Peru Elizabeth Campbell, Andrea Pasara-Polack, Jeffrey C. Mangel, Joanna Alfaro-Shigueto ABSTRACT: The use of small cetaceans as bait is a practice that has been reported worldwide, affecting the conservation status of vulnerable species. In Peru specifically, it has been documented since at least the late
Assessing the reproductive biology of the Greenland shark
Assessing the reproductive biology of the Greenland shark (Somniosus microcephalus) Julius Nielsen, Rasmus B. Hedeholm, Arve Lynghammar, Leon M. McClusky, Bjørn Berland, John F. Steffensen, Jørgen S. Christiansen ABSTRACT: The Greenland shark (Somniosus microcephalus, Squaliformes: Somniosidae) is a long-lived Arctic top predator, which in combination with the high historical and modern fishing pressures, has made
Maternal provisioning gives young-of-the-year Hammerheads a head start in early life
Maternal provisioning gives young-of-the-year Hammerheads a head start in early life Kady Lyons, Ashley S. Galloway, Douglas H. Adams, Eric A. Reyier, Amanda M. Barker, David S. Portnoy, Bryan S. Frazier ABSTRACT: For species that do not provide parental care after birth, excess maternal provisioning during development, beyond what is required for embryogenesis, provides offspring
Body, jaw, and dentition lengths of macrophagous lamniform sharks, and body size evolution in Lamniformes
Body, jaw, and dentition lengths of macrophagous lamniform sharks, and body size evolution in Lamniformes with special reference to ‘off-the-scale’ gigantism of the megatooth shark, Otodus megalodon Kenshu Shimada, Martin A. Becker, Michael L. Griffiths ABSTRACT: Extinct lamniform sharks (Elasmobranchii: Lamniformes) are well represented in the late Mesozoic‒Cenozoic fossil record, yet their biology is poorly