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Decoding fingerprints in two morphologically similar sharks
Published on July 28, 2011. Decoding fingerprints: elemental composition of vertebrae correlates to age-related habitat use in two morphologically similar sharks Bree J. Tillett, Mark G. Meekan, David Parry, Niels Munksgaard, Iain C. Field, Dean Thorburn, Corey J. A. Bradshaw ABSTRACT: We compare vertebral microchemistry with previously described age-related movement patterns of bull sharks Carcharhinus
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
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
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
Article: South African shark diving roils up a bloody argument
PDF File (scan) of an article published in ‘ The Wenatchee World ‘ on 28 July 2011. PDF Download.
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
Habitat Preference of Juvenile Lemon Sharks (Negaprion brevirostris) in South Eleuthera, Bahamas
by Georgianna Anderson, Samantha Essig, Nick Manning, Brett McQuaide, Caroline Schoen, Anne Vetter. Advisors: Ian Hamilton and Al Pickard. PDF – Download
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