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Chimaera opalescens n. sp., a new chimaeroid (Chondrichthyes: Holocephali) from the north-eastern Atlantic Ocean
Published online on 22 July 2011. E. A. Luchetti, S. P. Iglésias, D. Y. Sellos. ABSTRACT: A new species of chimaeroid, Chimaera opalescens n. sp., was described from 31 type specimens caught in the north-eastern Atlantic Ocean at 950–1400 m depth. This species differed from all its congeners by the combination of the following characters:
Phylogeography of the copper shark (Carcharhinus brachyurus) in the southern hemisphere: implications for the conservation of a coastal apex predator
Published on 25 July 2011. Martin T. Benavides, Kevin A. Feldheim, Clinton A. Duffy, Sabine Wintner, J. Matias Braccini, Jessica Boomer , Charlie Huveneers , Paul Rogers, Jeffrey C. Mangel, Joanna Alfaro-Shigueto, Daniel P. Cartamil and Demian D. Chapman. ABSTRACT: The copper or bronze whaler shark (Carcharhinus brachyurus) is a large, coastal top predator that
Age, growth and reproduction of a common deep-water shark, shortspine spurdog (Squalus cf. mitsukurii), from Hawaiian waters
Published on 25 July 2011. Charles F. Cotton, R. Dean Grubbs, Toby S. Daly-Engel, Patrick D. Lynch and John A. Musick. ABSTRACT: About half of the extant shark species occur only in deep waters (defined as >200 m depth), yet few published studies on sharks include these taxa. As fisheries worldwide enter deeper waters, the
Similar life history traits in bull (Carcharhinus leucas) and pig-eye (C. amboinensis) sharks
Published on 25 July 2011. Bree J. Tillett, Mark G. Meekan, Iain C. Field, Quan Hua and Corey J. A. Bradshaw . ABSTRACT: Appropriate management strategies for coastal regions require an understanding of how ecological similarities and differences among species shape ecosystem processes. Here, we tested whether morphological similarity equated to similar age and growth
Demographic Processes Underlying Subtle Patterns of Population Structure in the Scalloped Hammerhead Shark, Sphyrna lewini
Published on 14 July 2011. Nance HA, Klimley P, Galván-Magaña F, Martínez-Ortíz J, Marko PB . ABSTRACT: Genetic diversity (θ), effective population size (Ne), and contemporary levels of gene flow are important parameters to estimate for species of conservation concern, such as the globally endangered scalloped hammerhead shark, Sphyrna lewini. Therefore, we have reconstructed the
Feeding ecology of demersal elasmobranchs from the shelf and slope off the Balearic Sea western Mediterranean
Published online on 13 July 2011. Maria Valls, Antoni Quetglas, Francesc Ordines and Joan Moranta. ABSTRACT: The feeding ecology of eight demersal elasmobranchs, three sharks (Etmopterus spinax, Scyliorhinus canicula and Galeus melastomus) and five batoids (Myliobatis aquila, Leucoraja naevus, Raja polystigma, R. miraletus and R. clavata), from the Balearic Sea (western Mediterranean) was analyzed. For
Intraspecific and interspecific spatial distribution of three eastern North Pacific catshark species and their egg cases (Chondrichthyes: Scyliorhinidae)
Published on 6 July 2011. Brooke E. Flammang, David A. Ebert, and Gregor M. Cailliet ABSTRACT: Information on the distribution of three species of eastern North Pacific (ENP) catsharks (Apristurus brunneus, Apristurus kampae, and Parmaturus xaniurus) and their egg cases was previously unavailable despite being a species of interest for fisheries management evaluation and policy
Pristiophorus nancyae, a New Species of Sawshark (Chondrichthyes: Pristiophoridae) from Southern Africa
Published on 01 July 2011. David A. Ebert, Gregor M. Cailliet. ABSTRACT: A new species of sawshark, Pristiophorus nancyae sp. nov., is described from eight specimens collected off mozambique. The new species is the second member of the family pristiophoridae and first member of the genus Pristiophorus described from the western indian ocean. The new
First Descriptions of the Behavior of Silky Sharks, Carcharhinus Falciformis, Around Drifting Fish Aggregating Devices in the Indian Ocean
First Descriptions of the Behavior of Silky Sharks, Carcharhinus Falciformis, Around Drifting Fish Aggregating Devices in the Indian Ocean
Use of Sand Ripples to Enhance Chafing in Caribbean Reef Sharks (Carcharhinus Perezi) and Blacktip Sharks (Carcharhinus Limbatus)
Although chafing—the rubbing of a body on the sea floor—is a common response of sharks to the attachment of irritating sharksuckers Caribbean Reef Sharks and Blacktip Sharks
First documented attack on a live human by a cookiecutter shark
An adult long distance swimmer attempting to cross the Alenuihaha Channel between the Hawaiian islands of Hawai‘i and Maui was twice bitten by a cookiecutter shark
Validating the occurrence of Caribbean reef sharks northern Gulf of Mexico, with a key for sharks
Published on 29 June 2011. Correspondence William B. Driggers III, Eric R. Hoffmayer, Emma L. Hickerson, Timothy L. Martin, Christopher T. Gledhill Among the sharks inhabiting the continental shelf waters of the western North Atlantic Ocean, those within the genus Carcharhinus are the most speciose (Castro 2011). Authoritative sources agree on the presence of twelve
Description of the mechanoreceptive lateral line and electroreceptive ampullary systems in the freshwater whipray, Himantura dalyensis
Published on 24 June 2011. Teagan A. Marzullo, Barbara E. Wueringer, Lyle Squire Jnr and Shaun P. Collin. ABSTRACT: Mechanoreceptive and electroreceptive anatomical specialisations in freshwater elasmobranch fishes are largely unknown. The freshwater whipray, Himantura dalyensis, is one of a few Australian elasmobranch species that occur in low salinity (oligohaline) environments. The distribution and morphology
From hunters to nature observers: a record of 53 years of diver attitudes towards sharks and rays and marine protected areas
Published on 24 June 2011. Sally Whatmough, Ingrid Van Putten and Andrew Chin. ABSTRACT: Human values, perceptions, attitudes and interactions with the natural environment have been found to change over time, with social and economic information used to inform management decisions and actions. Content analysis is applied here to a 53-year long collection of the
Changing patterns of shark attacks in Australian waters
Published on 24 June 2011. John G. West ABSTRACT: Although infrequent, shark attacks attract a high level of public and media interest, and often have serious consequences for those attacked. Data from the Australian Shark Attack File were examined to determine trends in unprovoked shark attacks since 1900, particularly over the past two decades. The