Home » Archives
Habitat, movements and environmental preferences of dusky sharks in the northern Gulf of Mexico
Published in January 2014 Habitat, movements and environmental preferences of dusky sharks, Carcharhinus obscurus, in the northern Gulf of Mexico Eric R. Hoffmayer, James S. Franks, William B. Driggers III, Jennifer A. McKinney, Jill M. Hendon, Joseph M. Quattro ABSTRACT : The dusky shark (Carcharhinus obscurus) is the largest member of the genus Carcharhinus and
Physiological stress response, reflex impairment, and survival of five sympatric shark species
Published online on 27. January 2014 Physiological stress response, reflex impairment, and survival of five sympatric shark species following experimental capture and release A. J. Gallagher, J. E. Serafy, S. J. Cooke, N. Hammerschlag ABSTRACT: In many fisheries, some component of the catch is usually released. Quantifying the effects of capture and release on fish
Importance of environmental and biological drivers in the presence and space use of a reef‑associated shark
Published online on 27. January 2014 Importance of environmental and biological drivers in the presence and space use of a reef‑associated shark M. R. Heupel, C. A. Simpfendorfer ABSTRACT: As coral reef ecosystems come under increasing pressure from fisheries and climate change, understanding how species that rely on these habitats respond to changes within their
Observations on Abundance of Bluntnose Sixgill Sharks in an Urban Waterway in Puget Sound
Published on 27. January 2014 Observations on Abundance of Bluntnose Sixgill Sharks, Hexanchus griseus, in an Urban Waterway in Puget Sound, 2003-2005 Denise Griffing, Shawn Larson, Joel Hollander, Tim Carpenter, Jeff Christiansen, Charles Doss ABSTRACT: The bluntnose sixgill shark, Hexanchus griseus, is a widely distributed but poorly understood large, apex predator. Anecdotal reports of diver-shark
Pectoral Fin of the Megamouth Shark
Published on 21. January 2014 Pectoral Fin of the Megamouth Shark: Skeletal and Muscular Systems, Skin Histology, and Functional Morphology Taketeru Tomita, Sho Tanaka, Keiichi Sato, Kazuhiro Nakaya ABSTRACT: This is the first known report on the skeletal and muscular systems, and the skin histology, of the pectoral fin of the rare planktivorous megamouth shark
Vitamin C and E concentrations in muscle of elasmobranch and teleost fish
Published online on 25. January 2014 Vitamin C and E concentrations in muscle of elasmobranch and teleost fish Marcela Vélez-Alavez, Lía C. Méndez-Rodriguez, Juan A. De Anda Montañez, C. Humberto Mejía, Felipe Galván-Magaña, Tania Zenteno-Savín ABSTRACT: In fish, vitamins are part of the first line of the antioxidant defense, they are directly related to stress
Long-Term Changes in Species Composition and Relative Abundances of Sharks at a Provisioning Site
Published on 23. January 2014 Long-Term Changes in Species Composition and Relative Abundances of Sharks at a Provisioning Site Juerg M. Brunnschweiler, Kátya G. Abrantes, Adam Barnett ABSTRACT: Diving with sharks, often in combination with food baiting/provisioning, has become an important product of today’s recreational dive industry. Whereas the effects baiting/provisioning has on the behaviour
Extinction risk and conservation of the world’s sharks and rays
Published on 21. January 2014 Extinction risk and conservation of the world’s sharks and rays Dulvy et al. ABSTRACT: The rapid expansion of human activities threatens ocean-wide biodiversity. Numerous marine animal populations have declined, yet it remains unclear whether these trends are symptomatic of a chronic accumulation of global marine extinction risk. We present the
Mitochondrial genome of the bull shark
Published online on 10. January 2014 Mitochondrial genome of the bull shark Carcharhinus leucas (Carcharhiniformes: Carcharhinidae) Xiao Chen, Min Liu, Zaiqing Peng, and Xiaofang Shi ABSTRACT: The bull shark Carcharhinus leucas is a large elasmobranch species widespread in tropical and warm oceans, rivers and lakes. We first determine the complete mitogenome of C. leucas in
The role of fisheries and the environment in driving the decline of elasmobranchs in the northern Adriatic Sea
Published online on 12. January 2014 The role of fisheries and the environment in driving the decline of elasmobranchs in the northern Adriatic Sea Alberto Barausse, Vittoria Correale, Aleksia Curkovic, Licia Finotto, Emilio Riginella, Eleonora Visentin, Carlotta Mazzoldi ABSTRACT: Elasmobranch populations are declining worldwide, calling for urgent assessment of fishery exploitation and application of effective
Human impact on the presence of sharks at diving sites in Egypt
Published in 2013 HUMAN IMPACT ON THE PRESENCE OF SHARKS AT DIVING SITES OF THE SOUTHERN RED SEA, EGYPT Ahmed M. Shawky, Alessandro De Maddalena ABSTRACT: A study of human impact on the presence and behavior of sharks was carried out June to November 2008 at these Red Sea diving sites: Elphinstone Reef, Daedalus Reef,
Elephant shark genome provides unique insights into gnathostome evolution
Published online on 08. January 2014 Elephant shark genome provides unique insights into gnathostome evolution Venkatesh et al. ABSTRACT: The emergence of jawed vertebrates (gnathostomes) from jawless vertebrates was accompanied by major morphological and physiological innovations, such as hinged jaws, paired fins and immunoglobulin-based adaptive immunity. Gnathostomes subsequently diverged into two groups, the cartilaginous fishes
Sizing up the ecological role of sharks as predators
Published on 09. January 2014 Sizing up the ecological role of sharks as predators Michelle R. Heupel, Danielle M. Knip, Colin A. Simpfendorfer, Nicholas K. Dulvy ABSTRACT: The decline of predators in a variety of ecosystems has transformed community structure through mesopredator release and trophic cascades. Elasmobranch fishes, one of the earth’s most ubiquitous and
Northernmost record of a whale shark from the Sea of Okhotsk
Published online on 03. January 2014 Northernmost record of a whale shark Rhincodon typus from the Sea of Okhotsk T. Tomita, T. Kawai, H. Matsubara, M. Kobayashi, S. Katakura ABSTRACT: The whale shark Rhincodon typus is the world’s largest fish and it occurs in tropical, subtropical and warm temperate waters. Here, the northernmost record of
Reef-Fidelity and Migration of Tiger Sharks across the Coral Sea
Published on 08. January 2014 Reef-Fidelity and Migration of Tiger Sharks, Galeocerdo cuvier, across the Coral Sea Jonathan M. Werry, Serge Planes, Michael L. Berumen, Kate A. Lee, Camrin D. Braun, Eric Clua ABSTRACT: Knowledge of the habitat use and migration patterns of large sharks is important for assessing the effectiveness of large predator Marine