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Demographics and feeding ecology of whale sharks at Mafia Island
Published on 17. October 2013 Demographics and feeding ecology of whale sharks at Mafia Island, Tanzania Edgar F Cagua, Jesse Cochran, Chris Rohner, Mathias M Igulu, Jason Rubens, Simon J Pierce, Michael L Berumen ABSTRACT: Background. The Western Indian Ocean is a globally important region for the whale shark Rhincodon typus, with well-studied coastal aggregation
Characterization of the heart transcriptome of the white shark
Published on 11. October 2013 Characterization of the heart transcriptome of the white shark (Carcharodon carcharias) Vincent P Richards, Haruo Suzuki, Michael J Stanhope, Mahmood S Shivji ABSTRACT: Background The white shark ( Carcharodon carcharias ) is a globally distributed, apex predator possessing physical, physiological, and behavioral traits that have garnered it significant public attention.
Predicting the spatial distribution of the blue-spotted maskray on the Australian North and Northwest Shelf
Published in September 2013 Predicting the spatial distribution of the blue-spotted maskray Neotrygon kuhlii (Myliobatiformes, Dasyatidae) on the Australian North and Northwest Shelf comparing two different methods of habitat modeling S. Weigmann, R. Thiel ABSTRACT: Knowledge about distribution and habitat requirements of species is important for analyzing their role in marine ecosystems or establishing sanctuaries.
Sexual Dimorphisms in the Dermal Denticles of the Lesser-Spotted Catshark
Published on 07. October 2013 Sexual Dimorphisms in the Dermal Denticles of the Lesser-Spotted Catshark, Scyliorhinus canicula (Linnaeus, 1758) Neil Crooks, Lucy Babey, William J. Haddon, Adrian C. Love, Colin P. Waring ABSTRACT: The dermal layers of several elasmobranch species have been shown to be sexually dimorphic. Generally, when this occurs the females have thicker
Chondrocranial Morphology of the Salmon Shark and the Porbeagle
Published in September 2013 Chondrocranial Morphology of the Salmon Shark, Lamna ditropis, and the Porbeagle, L. nasus (Lamnidae) John G. Maisey and Victor G. Springer ABSTRACT: Adult chondrocranial morphology is poorly documented in modern lamniform sharks. Here it is described for the two extant species of Lamna, L. nasus and L. ditropis. Several features are
Age-related PCB dynamics in immature bull sharks
Accepted manuscript online on 01. October 2013 Age-related PCB dynamics in immature bull sharks Carcharhinus leucas Jill A. Olin, Marina Beaudry, Aaron T. Fisk, Gordon Paterson ABSTRACT: Polychlorinated biphenyls (PCBs) were quantified in liver tissues of bull sharks (Carcharhinus leucas) ranging in age from <4 weeks to >3 years old. Summed values of PCBs (ΣPCB)
Temporal changes in some Rajiformes species from the İskenderun Bay, Turkey
Published online on 04. October 2013 Temporal changes in some Rajiformes species of cartilaginous fish (Chondrichthyes) from the west coast of İskenderun Bay (northeastern Mediterranean) Hacer YELDAN, Dursun AVŞAR, Sinan MAVRUK, Meltem MANAŞIRLI ABSTRACT: Some Rajiformes species among the cartilaginous fish (Chondrichthyes) that are distributed on the west coast of the Gulf of İskenderun were
Impact of Costa Rican longline fishery on its bycatch of sharks
Published in October 2013 Impact of Costa Rican longline fishery on its bycatch of sharks, stingrays, bony fish and olive ridley turtles (Lepidochelys olivacea) Derek Dapp, Randall Arauz, James R. Spotila, Michael P. O’Connor ABSTRACT: We used data collected by an observer program to assess the impact of the Costa Rican longline fishery on numbers,
A metabolomic approach to health assessment in the whale shark
Published online on 02. October 2013 A metabolomic approach to health assessment in the whale shark, Rhincodon typus Alistair D Dove, Johannes Leisen, Manshui Zhou, Jonathan Byrne, Harry Webb, Les Gelbaum, Mark Viant, Julia Kubanek, Facundo Fernandez ABSTRACT: Background. No studies have evaluated the biochemistry of whale sharks. The illness of two animals in the
Population structure of whale sharks occurring in the waters of Oslob– Cebu
Published online on 30. September 2013 Describing the population structure of Rhincodon typus occurring in the waters of Oslob– Cebu, Philippines– between March 2012 and June 2013, during the provisioning interaction hours Gonzalo Araujo, Alessandro Ponzo, Daniel Geary, Samantha Craven, Sally J Snow, Anna R Lucey ABSTRACT: Background: Prior to this study, the aggregation of
Whale Shark Provisioning: What do we know and where do we stand
Published online on 30. September 2013 Whale Shark Provisioning: What do we know and where do we stand; The case study of Oslob, Philippines Alessandro Ponzo, Gonzalo Araujo, Jessica Labaja, Catherine L. So, Sally J. Snow, Daniel Geary, Samantha Craven, Anna R. Lucey ABSTRACT: Background. Provisioning is a growing practice used to facilitate wildlife-tourist interaction,
Monitoring the recreational take of sharks in Australia
Monitoring the recreational take of shark species of relevance to Commonwealth fisheries Katherine Cheshire, Peter Ward, Phil Sahlqvist and Rupert Summerson Published on 26. September 2013 OVERVIEW The Recreational Fishing Industry Development Strategy (RFIDS) study identified shark species of interest to recreational fishing and the Australian Government. Many sharks and rays are endemic to Australia.
Avoidance conditioning in bamboo sharks
Published on 01. October 2013 Avoidance conditioning in bamboo sharks (Chiloscyllium griseum and C. punctatum): behavioral and neuroanatomical aspects Susanne Schwarze, Horst Bleckmann, Vera Schluessel ABSTRACT: Animals face different threats; to survive, they have to anticipate how to react or how to avoid these. It has already been shown in teleosts that selected regions in
A physiological analysis of color vision in batoid elasmobranchs
Published in September 2013 A physiological analysis of color vision in batoid elasmobranchs Christine N. Bedore, Ellis R. Loew, Tamara M. Frank, Robert E. Hueter, D. Michelle McComb, Stephen M. Kajiura ABSTRACT: The potential for color vision in elasmobranchs has been studied in detail; however, a high degree of variation exists among the group. Evidence
Quantification of maternal offloading of organic contaminants in elasmobranchs
Published online on 27. September 2013 Quantification of maternal offloading of organic contaminants in elasmobranchs using the histotrophic round stingray (Urobatis halleri) as a model Kady Lyons and Christopher G Lowe ABSTRACT: Maternal offloading is one route by which young animals may accumulate persistent organic pollutants, such as dichlorodiphenyltrichloroethane (DDT) and polychlorinated biphenyls (PCBs), but