Publications

Demographic Processes Underlying Subtle Patterns of Population Structure in the Scalloped Hammerhead Shark, Sphyrna lewini

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

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)

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

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

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)

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

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

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

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

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

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

Subjective judgement in data subsetting: implications for CPUE standardisation and stock assessment of non-target chondrichthyans

Subjective judgement in data subsetting: implications for CPUE standardisation and stock assessment of non-target chondrichthyans

Published on June 24 2011. J. M. Braccini, M.-P. Etienne and S. J. D. Martel. ABSTRACT: Standardisation of catch-per-effort (CPUE) data is an essential component for nearly all stock assessments. The first step in CPUE standardisation is to separate the comparable from the non-comparable catch and effort records and this is normally done based on

Are spatial closures better than size limits for halting the decline of the North Sea thornback ray, Raja clavata?

Are spatial closures better than size limits for halting the decline of the North Sea thornback ray, Raja clavata?

Published on 24 June 2011. Jessica Wiegand, Ewan Hunter and Nicholas K. Dulvy. ABSTRACT: A key challenge of the ecosystem approach to fisheries management is to sustain viable populations of large-bodied less-productive vulnerable elasmobranchs that are the by-catch of fisheries that target more productive species. The North Sea population of the thornback ray (Raja clavata)

Evaluating catch and mitigating risk in a multispecies, tropical, inshore shark fishery within the Great Barrier Reef World Heritage Area

Evaluating catch and mitigating risk in a multispecies, tropical, inshore shark fishery within the Great Barrier Reef World Heritage Area

Published on 24 June 2011. Alastair V. Harry, Andrew J. Tobin, Colin A. Simpfendorfer, David J. Welch, Amos Mapleston, Jimmy White, Ashley J. Williams and Jason Stapley. ABSTRACT: Small-scale and artisanal fisheries for sharks exist in most inshore, tropical regions of the world. Although often important in terms of food security, their low value and

Reducing the environmental impact of shark-control programs: a case study from KwaZulu-Natal, South Africa

Reducing the environmental impact of shark-control programs: a case study from KwaZulu-Natal, South Africa

Published on 24 June 2011. Geremy Cliff and Sheldon F. J. Dudley. ABSTRACT: Large-scale shark-control programs at popular beaches in New South Wales and Queensland, Australia, and KwaZulu-Natal (KZN), South Africa, provide protection against shark attack. Although these programs have enhanced bathing safety, reducing the environmental impacts of decades of fishing for large sharks and