Scientific Papers

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Dusky Snout Catshark (Bythaelurus naylori) – A new species from the southwestern Indian Ocean

Dusky Snout Catshark (Bythaelurus naylori) – A new species from the southwestern Indian Ocean

Published online in June 2015 A new species of deep-sea catshark (Scyliorhinidae: Bythaelurus) from the southwestern Indian Ocean D.A. Ebert, P.J. Clerkin ABSTRACT: Bythaelurus naylori sp. n. is described based on 41 specimens collected from seamounts in the southwestern Indian Ocean. The new species can be separated from all other Bythaelurus species by a combination

Diet of two commercially important shark species in the United Arab Emirates: milk shark and slit-eye shark

Diet of two commercially important shark species in the United Arab Emirates: milk shark and slit-eye shark

Published online on 17. June 2015 Diet of two commercially important shark species in the United Arab Emirates: milk shark, Rhizoprionodon acutus (Rüppell, 1837), and slit-eye shark, Loxodon macrorhinus (Müller & Henle, 1839) R. W. Jabado, S. M. Al Ghais, W. Hamza, A. C. Henderson, A. A. Al Mesafri ABSTRACT: The diets of the milk

Concentrations of trace elements in a rare and threatened coastal shark from the Arabian Gulf

Concentrations of trace elements in a rare and threatened coastal shark from the Arabian Gulf

Published online on 15. June 2015 Concentrations of trace elements in a rare and threatened coastal shark from the Arabian Gulf (smoothtooth blacktip Carcharhinus leiodon) Alec B.M. Moore, Thi Bolam, Brett P. Lyons, Jim R. Ellis ABSTRACT: Kuwait’s waters are one of only two locations where the smoothtooth blacktip shark Carcharhinus leiodon is known to

Body-size trends of the extinct giant shark Carcharocles megalodon

Body-size trends of the extinct giant shark Carcharocles megalodon

Published online on 04. June 2015 Body-size trends of the extinct giant shark Carcharocles megalodon: a deep-time perspective on marine apex predators Catalina Pimiento, Meghan A. Balk ABSTRACT: The extinct shark Carcharocles megalodon is one of the largest marine apex predators ever to exist. Nonetheless, little is known about its body-size variations through time and

Unexpected Positive Buoyancy in Deep Sea Sharks, Hexanchus griseus, and a Echinorhinus cookei

Unexpected Positive Buoyancy in Deep Sea Sharks, Hexanchus griseus, and a Echinorhinus cookei

Published on 10. June 2015 Unexpected Positive Buoyancy in Deep Sea Sharks, Hexanchus griseus, and a Echinorhinus cookei Itsumi Nakamura, Carl G. Meyer, Katsufumi Sato ABSTRACT: We do not expect non air-breathing aquatic animals to exhibit positive buoyancy. Sharks, for example, rely on oil-filled livers instead of gas-filled swim bladders to increase their buoyancy, but

Ontogeny of digestive organs during early developmental stages of the tropical whitespotted bamboo shark

Ontogeny of digestive organs during early developmental stages of the tropical whitespotted bamboo shark

Published online on 09. June 2015 Ontogeny of digestive organs during early developmental stages of the tropical whitespotted bamboo shark, Chiloscyllium plagiosum – a histological study Xiaojin Xu, Yingxue Qin, Gang Luo, Xi Huang, Wen-zheng Zou, Lipin Zheng, Jun Wang, Yongquan Su ABSTRACT: This study was undertaken to address a lack of understanding of the

Drivers of Daily Routines in Blacktip Reef Sharks: Hunt Warm, Rest Warmer?

Drivers of Daily Routines in Blacktip Reef Sharks: Hunt Warm, Rest Warmer?

Published on 10. June 2015 Drivers of Daily Routines in an Ectothermic Marine Predator: Hunt Warm, Rest Warmer? Yannis P. Papastamatiou, Yuuki Y. Watanabe, Darcy Bradley, Laura E. Dee, Kevin Weng, Christopher G. Lowe, Jennifer E. Caselle ABSTRACT : Animal daily routines represent a compromise between maximizing foraging success and optimizing physiological performance, while minimizing

Repeated, long-distance migrations by a philopatric predator targeting highly contrasting ecosystems

Repeated, long-distance migrations by a philopatric predator targeting highly contrasting ecosystems

Published on 09. June 2015 Repeated, long-distance migrations by a philopatric predator targeting highly contrasting ecosystems James S. E. Lea, Bradley M. Wetherbee, Nuno Queiroz, Neil Burnie, Choy Aming, Lara L. Sousa, Gonzalo R. Mucientes, Nicolas E. Humphries, Guy M. Harvey, David W. Sims, Mahmood S. Shivji ABSTRACT: Long-distance movements of animals are an important

Population Genetics and Relatedness of the Broadnose Sevengill Shark in Two Northeast Pacific Estuaries

Population Genetics and Relatedness of the Broadnose Sevengill Shark in Two Northeast Pacific Estuaries

Published on 08. June 2015 Preliminary Observations of Population Genetics and Relatedness of the Broadnose Sevengill Shark, Notorynchus cepedianus, in Two Northeast Pacific Estuaries Shawn Larson, Debbie Farrer, Dayv Lowry, David A. Ebert ABSTRACT: The broadnose sevengill shark, Notorynchus cepedianus, a common coastal species in the eastern North Pacific, was sampled during routine capture and

A Gigantic Shark from the Lower Cretaceous Duck Creek Formation of Texas

A Gigantic Shark from the Lower Cretaceous Duck Creek Formation of Texas

Published on 03. June 2015 A Gigantic Shark from the Lower Cretaceous Duck Creek Formation of Texas Joseph A. Frederickson , Scott N. Schaefer, Janessa A. Doucette-Frederickson ABSTRACT: Three large lamniform shark vertebrae are described from the Lower Cretaceous of Texas. We interpret these fossils as belonging to a single individual with a calculated total

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