Scientific Papers

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First record of second-generation facultative parthenogenesis in a vertebrate species, the whitespotted bambooshark

First record of second-generation facultative parthenogenesis in a vertebrate species, the whitespotted bambooshark

Published online on 03. January 2016 First record of second-generation facultative parthenogenesis in a vertebrate species, the whitespotted bambooshark Chiloscyllium plagiosum N. Straube, K. P. Lampert, M. F. Geiger, J. D. Weiß, J. X. Kirchhauser ABSTRACT: In this study, two parthenogenetic events within a family of the whitespotted bambooshark Chiloscyllium plagiosum are reported. A captive

Olfaction Contributes to Pelagic Navigation in a Coastal Shark

Olfaction Contributes to Pelagic Navigation in a Coastal Shark

Published on 06. January 2016 Olfaction Contributes to Pelagic Navigation in a Coastal Shark Andrew P. Nosal, Yi Chao, John D. Farrara, Fei Chai, Philip A. Hastings ABSTRACT: How animals navigate the constantly moving and visually uniform pelagic realm, often along straight paths between distant sites, is an enduring mystery. The mechanisms enabling pelagic navigation

Benefits of marine protected areas for tropical coastal sharks

Benefits of marine protected areas for tropical coastal sharks

Published online on 29. December 2015 Benefits of marine protected areas for tropical coastal sharks Peter M. Yates, Andrew J. Tobin, Michelle R. Heupel, Colin A. Simpfendorfer ABSTRACT: Coastal sharks face increasing pressure from anthropogenic impacts and environmental change. Estimated population declines in some species have created uncertainty about the effectiveness of existing management approaches.

Recreational saltwater angler behaviours and attitudes regarding shark encounters and conservation

Recreational saltwater angler behaviours and attitudes regarding shark encounters and conservation

Published online on 21 December 2015 Catching sharks: recreational saltwater angler behaviours and attitudes regarding shark encounters and conservation Kate Mcclellan Press, John Mandelman, Elizabeth Burgess, Steven J. Cooke, Vivian M. Nguyen, Andy J. Danylchuk ABSTRACT: With the increasing popularity of recreational angling around the world, there is a need to better understand the potential

First records of the leopard electric ray in the Ecuadorian Pacific

First records of the leopard electric ray in the Ecuadorian Pacific

Published in December 2015 First records of the leopard electric ray Narcine leoparda (Torpediniformes: Narcinidae) in the Ecuadorian Pacific Colombo Estupiñan-Montaño, Felipe Galván-Magaña ABSTRACT: The aim of this study was to report the presence of the leopard electric ray Narcine leoparda in Ecuadorian waters; to date, this is the southernmost report of this species in

Tooth and scale morphogenesis in shark

Tooth and scale morphogenesis in shark

Published on 24. December 2015 Tooth and scale morphogenesis in shark: an alternative process to the mammalian enamel knot system Mélanie Debiais-Thibaud, Roxane Chiori, Sébastien Enault, Silvan Oulion, Isabelle Germon, Camille Martinand-Mari, Didier Casane, Véronique Borday-Birraux ABSTRACT: Background The gene regulatory network involved in tooth morphogenesis has been extremely well described in mammals and its

Reef sharks: recent advances in ecological understanding to inform conservation

Reef sharks: recent advances in ecological understanding to inform conservation

First published online on 28 December 2015 Reef sharks: recent advances in ecological understanding to inform conservation G. J. Osgood and J. K. Baum ABSTRACT: Sharks are increasingly being recognized as important members of coral-reef communities, but their overall conservation status remains uncertain. Nine of the 29 reef-shark species are designated as data deficient in

The diversity, distribution and status of deep-water elasmobranchs in the Rockall Trough, north-east Atlantic Ocean

The diversity, distribution and status of deep-water elasmobranchs in the Rockall Trough, north-east Atlantic Ocean

First published online on 28 December 2015 The diversity, distribution and status of deep-water elasmobranchs in the Rockall Trough, north-east Atlantic Ocean F. C. Neat, F. Burns, E. Jones, T. Blasdale ABSTRACT: Data from a scientific deep-water trawl fisheries survey in the north-east Atlantic were analysed to determine the spatial and bathymetric distribution of elasmobranch

Interannual variability in the skate assemblage on the South Patagonian shelf and slope

Interannual variability in the skate assemblage on the South Patagonian shelf and slope

First published online on 28 December 2015 Interannual variability in the skate assemblage on the South Patagonian shelf and slope A. Winter, J. Pompert, A. Arkhipkin, P. E. Brewin ABSTRACT: Observer data from the commercial fishery on the Patagonian shelf and slope around the Falkland Islands (home to an assemblage of >16 skate species (Rajiformes),

Reproduction of the whitesnout guitarfish in the Ecuadorian Pacific Ocean

Reproduction of the whitesnout guitarfish in the Ecuadorian Pacific Ocean

First published online on 28 December 2015 Reproduction of the whitesnout guitarfish Rhinobatos leucorhynchus in the Ecuadorian Pacific Ocean A. F. Romero-Caicedo and M. Carrera-Fernández ABSTRACT: Biological sampling of whitesnout guitarfish Rhinobatos leucorhynchus, caught as by-catch in the commercial fisheries on the Pacific coast of Ecuador, was conducted from specimens caught between April 2013 and

Reproductive characteristics and life-history relationships of starry smooth-hound in British waters

Reproductive characteristics and life-history relationships of starry smooth-hound in British waters

First published online on 28 December 2015 Reproductive characteristics and life-history relationships of starry smooth-hound Mustelus asterias in British waters S. R. McCully Phillips and J. R. Ellis ABSTRACT: The reproductive biology and other life-history parameters were investigated for Mustelus asterias in British waters, with specimens caught from both commercial fisheries and research-vessel surveys. In

Estimating growth from tagging data: an application to north-east Atlantic tope shark

Estimating growth from tagging data: an application to north-east Atlantic tope shark

First published online on 28 December 2015 Estimating growth from tagging data: an application to north-east Atlantic tope shark Galeorhinus galeus M. Dureuil and B. Worm ABSTRACT: This study addresses the inherent uncertainty when estimating growth from limited mark–recapture information. A selection procedure was developed utilizing 18 competing growth estimation methods. The optimal method for

Genetic structure, population demography and seasonal occurrence of blacktip shark in Bimini

Genetic structure, population demography and seasonal occurrence of blacktip shark in Bimini

First published online on 28 December 2015 Genetic structure, population demography and seasonal occurrence of blacktip shark Carcharhinus limbatus in Bimini, the Bahamas K. S. Gledhill, S. T. Kessel, T. L. Guttridge, A. C. Hansell, A. E. Bester-van der Merwe, K. A. Feldheim, S. H. Gruber, D. D. Chapman ABSTRACT: A longline survey was conducted

Sex-specific patterns in the seasonal occurrence of white sharks at the Neptune Islands, South Australia

Sex-specific patterns in the seasonal occurrence of white sharks at the Neptune Islands, South Australia

First published online on 28 December 2015 Segregation or aggregation? Sex-specific patterns in the seasonal occurrence of white sharks Carcharodon carcharias at the Neptune Islands, South Australia B. Bruce, R. Bradford ABSTRACT: The seasonal patterns of occurrence of male and female white sharks Carcharodon carcharias at the Neptune Islands in South Australia were reviewed. Analyses

Occurrence and habitat use of the critically endangered smalltooth sawfish in the Bahamas

Occurrence and habitat use of the critically endangered smalltooth sawfish in the Bahamas

First published online on 28 December 2015 Occurrence and habitat use of the critically endangered smalltooth sawfish Pristis pectinata in the Bahamas T. L. Guttridge, S. J. B. Gulak, B. R. Franks, J. K. Carlson, S. H. Gruber, K. S. Gledhill, M. E. Bond, G. Johnson, R. D. Grubbs ABSTRACT: This study documents and discusses

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