Scientific Papers

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

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

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 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 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 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

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

A Blacktip Reef Shark Bite to the Hand in the Remote Solomon Islands

A Blacktip Reef Shark Bite to the Hand in the Remote Solomon Islands

A Blacktip Reef Shark Bite to the Hand in the Remote Solomon Islands Daniel Popa, MD, PhD; Nancy Beach, PA-C; Charlotte Sadler, MD ABSTRACT: Background Solomon Islands is a country in the South Pacific Ocean with excellent scuba diving, particularly among its remote islands that can be accessed by liveaboard dive boats. Blacktip reef sharks

The Use of Drones in Marine Animal Research

The Use of Drones in Marine Animal Research

Operational Protocols for the Use of Drones in Marine Animal Research Vincent Raoult, Andrew P Colefax, Blake M. Allan, Daniele Cagnazzi, Nataly Castelblanco-Martínez, Daniel Ierodiaconou, David W. Johnston, Sarah Landeo-Yauri, Mitchell Lyons, Vanessa Pirotta, Gail Schofield, Paul A Butcher ABSTRACT: The use of drones to study marine animals shows promise for the examination of numerous

Relative contribution to the shark fin trade of Indo‐Pacific and Eastern Pacific pelagic thresher sharks

Relative contribution to the shark fin trade of Indo‐Pacific and Eastern Pacific pelagic thresher sharks

Relative contribution to the shark fin trade of Indo‐Pacific and Eastern Pacific pelagic thresher sharks D. Cardeñosa, A. T. Fields, S. K. H. Shea, K. A. Feldheim, D. D. Chapman ABSTRACT: Fins from highly mobile shark species entering large shark fin trade hubs can originate from various geographical locations and stocks. Tracing fins from internationally

Forensic species identification of elasmobranchs landed in Costa Rican artisanal fisheries

Forensic species identification of elasmobranchs landed in Costa Rican artisanal fisheries

Forensic species identification of elasmobranchs landed in Costa Rican artisanal fisheries Jason R.O’Bryhim, E.C.M. Parsons, Stacey L. Lance ABSTRACT: Elasmobranchs represent one of the most imperiled taxa, yet few nations have developed catch limits and no international or bilateral catch limits exist. One barrier to establishing catch limits is a lack of accurate species-specific extraction

Standardized data to support conservation prioritization for sharks and batoids

Standardized data to support conservation prioritization for sharks and batoids

Standardized data to support conservation prioritization for sharks and batoids (Elasmobranchii) Rikke Oegelund Nielsen, Rita da Silva, Jacqueline Juergens, Johanna Staerk, Line Lindholm Sørensen, John Jackson, Simeon Quirinus Smeele, Dalia A. Conde ABSTRACT: We collated and synthesized information on 1,226 Elasmobranch species (i.e., sharks, rays, and skates) globally from a wide range of sources. We

Comparative morphology of shark pectoral fins

Comparative morphology of shark pectoral fins

Comparative morphology of shark pectoral fins Sarah L. Hoffmann, Thaddaeus J. Buser, Marianne E. Porter ABSTRACT: Sharks vary greatly in morphology, physiology, and ecology. Differences in whole body shape, swimming style, and physiological parameters have previously been linked to varied habitat uses. Pectoral fin morphology has been used to taxonomically classify species and hypotheses on

The immunoglobulins of cartilaginous fishes

The immunoglobulins of cartilaginous fishes

The immunoglobulins of cartilaginous fishes Hanover Matz, Danish Munir, James Logue, Helen Dooley ABSTRACT: Cartilaginous fishes, comprising the chimeras, sharks, skates, and rays, split from the common ancestor with other jawed vertebrates approx. 450 million years ago. Being the oldest extant taxonomic group to possess an immunoglobulin (Ig)-based adaptive immune system, examination of this group

Over 90 endangered fish and invertebrates are caught in industrial fisheries

Over 90 endangered fish and invertebrates are caught in industrial fisheries

Over 90 endangered fish and invertebrates are caught in industrial fisheries Roberson, L.A., Watson, R.A. & Klein, C.J. ABSTRACT: Industrial-scale harvest of species at risk of extinction is controversial and usually highly regulated on land and for charismatic marine animals (e.g. whales). In contrast, threatened marine fish species can be legally caught in industrial fisheries.

Uncovering the ecological roles and importance of rays

Uncovering the ecological roles and importance of rays

Buried in the sand: Uncovering the ecological roles and importance of rays Kathryn I. Flowers, Michael R. Heithaus, Yannis P. Papastamatiou ABSTRACT: Rays (superorder Batoidea) are the most diverse group of elasmobranchs, and many are threatened with extinction. However, there remain areas where research on the ecology of this group is lacking, from trophic interactions