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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
Scarring patterns of whale sharks at a provisioning site in the Philippines
Scarring patterns of whale sharks, Rhincodon typus, at a provisioning site in the Philippines Luke Penketh, Anna Schleimer, Jessica Labaja, Sally Snow, Alessandro Ponzo, Gonzalo Araujo ABSTRACT: 1. Shark‐based tourism continues to be a rapidly growing industry, and thus understanding the impacts of such activities is essential to mitigate the potential negative effects on the
Genetic connectivity of the scalloped hammerhead shark across Indonesia and the Western Indian Ocean
Genetic connectivity of the scalloped hammerhead shark Sphyrna lewini across Indonesia and the Western Indian Ocean Sutanto Hadi, Noviar Andayani, Efin Muttaqin, Benaya M. Simeon, Muhammad Ichsan, Beginer Subhan, Hawis Madduppa ABSTRACT: Scalloped Hammerhead shark (Sphyrna lewini) is an endangered species which its populations have been declining globally including in Indonesia, the world’s top shark
Growth pattern, condition factor and sex ratio of Grey Reef Shark in Makassar Strait
Growth pattern, condition factor and sex ratio of Grey Reef Shark Carcharhinus amblyrhynchos (Bleeker,1856) in Makassar Strait N L Rapi, A Mallawa, J Tresnati, F Amir ABSTRACT: Shark has been a sought-after species by fishermen due to its high economic value in the International market. It has increased shark’s fishing pressure on its wild population.
A real‐time PCR assay to detect predation by spiny dogfish on Atlantic cod in the western North Atlantic Ocean
A real‐time PCR assay to detect predation by spiny dogfish on Atlantic cod in the western North Atlantic Ocean Steven C. Pitchford, Brian E. Smith, Richard S. McBride ABSTRACT: Conventional observations show spiny dogfish (Squalus acanthius Linnaeus) rarely eat Atlantic cod (Gadus morhua Linnaeus; 0.02% of stomachs) in the northwestern Atlantic Ocean. Critics express concern