Scientific Papers

Dietary metal and macro-nutrient intakes of juvenile lemon sharks

Dietary metal and macro-nutrient intakes of juvenile lemon sharks

Published on July 18, 2011. Dietary metal and macro-nutrient intakes of juvenile lemon sharks determined from the nutritional composition of prey items. Harri Pettitt-Wade, Steven P. Newman, Kristene T. Parsons, Samuel H. Gruber, Richard D. Handy. ABSTRACT: The trace element requirements of sharks are poorly understood and the dietary intake of metals from prey items

Estuarine nursery areas for young bull sharks Carcharhinus leucas

Estuarine nursery areas for young bull sharks Carcharhinus leucas

Published on July 18, 2011. Estuarine nursery areas provide a low-mortality environment for young bull sharks Carcharhinus leucas. Michelle R. Heupel and Colin A. Simpfendorfer ABSTRACT: Defining the role and impact of mortality within aquatic populations is often difficult. As a result, we still lack a clear understanding of the level of mortality in natural

Nursery habitat use and foraging ecology of the brown stingray Dasyatis lata

Nursery habitat use and foraging ecology of the brown stingray Dasyatis lata

Published on July 18, 2011. Nursery habitat use and foraging ecology of the brown stingray Dasyatis lata determined from stomach contents, bulk and amino acid stable isotopes Jonathan J. Dale, Natalie J. Wallsgrove, Brian N. Popp, Kim N. Holland ABSTRACT: Identification of nursery habitats and knowledge of the trophic ecology and habitat use of juvenile

Chimaera opalescens n. sp., a new chimaeroid (Chondrichthyes: Holocephali) from the north-eastern Atlantic Ocean

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

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

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

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

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