Published on 16. October 2014 The role of refugia in reducing predation risk for Cape fur seals by white sharks Michelle Wcisel, M. Justin O’Riain, Alta de Vos, Wilfred Chivell ABSTRACT: Refugia play an important role in shaping predator/prey interactions; however, few studies have investigated predator–prey relationships between large marine vertebrates, mainly due to the
Published on 22. October 2014 Genetic Diversity and Population Structure of the Pelagic Thresher Shark (Alopias pelagicus) in the Pacific Ocean: Evidence for Two Evolutionarily Significant Units Diego Cardeñosa, John Hyde, Susana Caballero ABSTRACT: There has been an increasing concern about shark overexploitation in the last decade, especially for open ocean shark species, where there
Published on 22. October 2014 When Did Carcharocles megalodon Become Extinct ? A New Analysis of the Fossil Record Catalina Pimiento, Christopher F. Clements ABSTRACT: Carcharocles megalodon (“Megalodon”) is the largest shark that ever lived. Based on its distribution, dental morphology, and associated fauna, it has been suggested that this species was a cosmopolitan apex
Published on 15. October 2014 Redescription of Scymnodon ichiharai Yano and Tanaka 1984 (Squaliformes: Somniosidae) from the western North Pacific, with comments on the definition of somniosid genera William T. White, Diego F. B. Vaz, Hsuan-Ching Ho, David A. Ebert, Marcelo R. de Carvalho, Shannon Corrigan, Elisabeth Rochel, Murilo de Carvalho, Sho Tanaka, Gavin J.
Published on 20. October 2014 Spatial Segregation in Eastern North Pacific Skate Assemblages Joseph J. Bizzarro, Kristin M. Broms, Miles G. Logsdon, David A. Ebert, Mary M. Yoklavich, Linda A. Kuhnz, Adam P. Summers ABSTRACT: Skates (Rajiformes: Rajoidei) are common mesopredators in marine benthic communities. The spatial associations of individual species and the structure of
Published on 20. October 2014 Onset of Buccal Pumping in Catshark Embryos: How Breathing Develops in the Egg Capsule Taketeru Tomita, Masaru Nakamura, Keiichi Sato, Hiroko Takaoka, Minoru Toda, Junro Kawauchi, Kazuhiro Nakaya ABSTRACT: Respiration in fishes involves buccal pumping, which is characterized by the generation of nearly continuous water flow over the gills because
Accepted on 14. September 2014 A product of its environment: the epaulette shark (Hemiscyllium ocellatum) exhibits physiological tolerance to elevated environmental CO2 Dennis D. U. Heinrich, Jodie L. Rummer, Andrea J. Morash, Sue-Ann Watson, Colin A. Simpfendorfer, Michelle R. Heupel, Philip L. Munday ABSTRACT: Ocean acidification, resulting from increasing anthropogenic CO2 emissions, is predicted to
Manuscript accepted on 21. August 2014 In cold blood: evidence of Pacific sleeper shark (Somniosus pacificus) predation on Steller sea lions (Eumetopias jubatus) in the Gulf of Alaska Markus Horning, Jo-Ann E. Mellish ABSTRACT: Temperature data received post mortem in 2008–13 from 15 of 36 juvenile Steller sea lions (Eumetopias jubatus) that had been surgically
Published online on 10. October 2014 Notes on female reproductive biology and embryos of the brown guitarfish Rhinobatos schlegelii from the Penghu Islands, Taiwan Vera Schluessel, Jenny Giles, Peter M. Kyne ABSTRACT: Litter size and details of the reproductive biology of female brown guitarfish Rhinobatos schlegelii from the Penghu Islands, Taiwan, are provided for the
Published online on 08. October 2014 Residency Patterns and Migration Dynamics of Adult Bull Sharks (Carcharhinus leucas) on the East Coast of Southern Africa Ryan Daly, Malcolm J. Smale, Paul D. Cowley, Pierre W. Froneman ABSTRACT: Bull sharks (Carcharhinus leucas) are globally distributed top predators that play an important ecological role within coastal marine communities.