Scientific Papers

Page 20 of 100« First...10...1819202122...304050...Last »

Preferred conservation polices of shark researchers

Preferred conservation polices of shark researchers

Published online on 12. December 2015 Preferred conservation polices of shark researchers David Shiffman and Neil Hammerschlag ABSTRACT: There is increasing concern about the conservation status of sharks. However, the presence of numerous different (and potentially mutually exclusive) policies complicates management implementation and public understanding of the process. Here we present the results of...

Molecular mechanisms underlying the exceptional adaptations of batoid fins

Molecular mechanisms underlying the exceptional adaptations of batoid fins

Published online before print on 07. December 2015 Molecular mechanisms underlying the exceptional adaptations of batoid fins Tetsuya Nakamura, Jeff Klomp, Joyce Pieretti, Igor Schneider, Andrew R. Gehrke, Neil H. Shubin ABSTRACT: Extreme novelties in the shape and size of paired fins are exemplified by extinct and extant cartilaginous and bony fishes. Pectoral fins...

Discards, hooking, and post-release mortality of porbeagle, shortfin mako and blue shark in the Canadian longline fishery

Discards, hooking, and post-release mortality of porbeagle, shortfin mako and blue shark in the Canadian longline fishery

Published online on 08. December 2015 Discards, hooking, and post-release mortality of porbeagle (Lamna nasus), shortfin mako (Isurus oxyrinchus), and blue shark (Prionace glauca) in the Canadian pelagic longline fishery Steven E. Campana, Warren Joyce, Mark Fowler, Mark Showell ABSTRACT: Global discards of sharks greatly exceed reported landings, yet there are few estimates of...

Trends in the exploitation of South Atlantic shark populations

Trends in the exploitation of South Atlantic shark populations

Published online on 04. December 2015 Trends in the exploitation of South Atlantic shark populations Rodrigo Barreto, Francesco Ferretti, Joanna Mills, Alberto Amorim, Humber Andrade, Boris Worm, Rosangela Lessa ABSTRACT: Approximately 25% of globally reported shark catches occur in Atlantic pelagic longline fisheries. Strong declines in shark populations have been detected in the North...

Stable isotope study of a new chondrichthyan fauna (Kimmeridgian, Porrentruy, Swiss Jura)

Stable isotope study of a new chondrichthyan fauna (Kimmeridgian, Porrentruy, Swiss Jura)

Published on 07. December 2015 Stable isotope study of a new chondrichthyan fauna (Kimmeridgian, Porrentruy, Swiss Jura): an unusual freshwater-influenced isotopic composition for the hybodont shark Asteracanthus L. Leuzinger, L. Kocsis, J.-P. Billon-Bruyat, S. Spezzaferri, T. Vennemann ABSTRACT: Chondrichthyan teeth (sharks, rays, and chimaeras) are mineralized in isotopic equilibrium with the surrounding water, and...

Sex-specific and individual preferences for hunting strategies in white sharks

Sex-specific and individual preferences for hunting strategies in white sharks

Published online on 28. November 2015 Sex-specific and individual preferences for hunting strategies in white sharks Alison V Towner, Vianey Leos-Barajas, Roland Langrock, Robert S. Schick, Malcolm J Smale, Tami Kaschke, Oliver J. D. Jewell, Yannis P. Papastamatiou SUMMARY: Fine-scale predator movements may be driven by many factors including sex, habitat, and distribution of...

On the attribution of authorship for several elasmobranch species in Müller and Henle’s Systematische Beschreibung der Plagiostomen

On the attribution of authorship for several elasmobranch species in Müller and Henle’s Systematische Beschreibung der Plagiostomen

Published on 07. December 2015 On the attribution of authorship for several elasmobranch species in Müller and Henle’s Systematische Beschreibung der Plagiostomen (Chondrichthyes, Elasmobranchii) Christian M. Jones, William B. Driggers III, José I. Castro, Marcelo R. De Carvalho INTRODUCTION: Even in light of the recent peak in new species descriptions of elasmobranchs (summarized in...

Ray bycatch in a tropical shrimp fishery

Ray bycatch in a tropical shrimp fishery

Published online on 28. November 2015 Ray bycatch in a tropical shrimp fishery: Do Bycatch Reduction Devices and Turtle Excluder Devices effectively exclude rays ? Tomas Willems, Jochen Depestele, Annelies De Backer, Kris Hostens ABSTRACT: Worldwide, many species of elasmobranchs (Chondrichthyes: Elasmobranchii) are currently threatened by marine fisheries activity and are on the Red...

Characteristics of the shark fisheries of Fiji

Characteristics of the shark fisheries of Fiji

Published on 02. December 2015 Characteristics of the shark fisheries of Fiji Kerstin B. J. Glaus, Irene Adrian-Kalchhauser, Patricia Burkhardt-Holm, William T. White, Juerg M. Brunnschweiler ABSTRACT: Limited information is available on artisanal and subsistence shark fisheries across the Pacific. The aim of this study was to investigate Fiji’s inshore fisheries which catch sharks....

Determining the Role of Hand Feeding Practices in Accidental Shark Bites on Scuba Divers

Determining the Role of Hand Feeding Practices in Accidental Shark Bites on Scuba Divers

Published online on 26. November 2015 Determining the Role of Hand Feeding Practices in Accidental Shark Bites on Scuba Divers Clua EE and Torrente F ABSTRACT: Introduction: Shark-based ecotourism is significantly developing around the world, often without appropriate management of risk. This activity involves a risk of accidental bites on divers that can be...

Page 20 of 100« First...10...1819202122...304050...Last »