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Living with high concentrations of urea: They can!
Published in Jan 2012 Francesca Trischitta, Caterina Faggio, Agata Torre ABSTRACT: Marine elasmobranchs maintain their body fluid isoosmotic or slightly hyperosmotic to the external medium by the retention of large urea concentrations. This review focuses on the strategies adopted by these fishes to maintain a large outwardly direct concentration gradient of this osmolyte minimizing the
Identification Guide to SHARKS of Mississippi
By Dr. Eric Hoffmayer, Jim Franks and John Shelley The University of Southern Mississippi Gulf Coast Research Laboratory Center for Fisheries Research and Development PDF – Download
Checklist of Sharks of the Persian Gulf
Published on 20. January 2012 Sharks of the Persian (Arabian) Gulf: a first annotated checklist (Chondrichthyes: Elasmobranchii) Alec B.M. Moore, Robert D. Ward and Richard Peirce. ABSTRACT: The first evidence-based checklist of sharks of the Persian (Arabian) Gulf is presented based on appraisal of primary literature and new data, including identifications verified by COI barcoding.
Contribution to the taxonomy and distribution of rays from Thailand
Published in December 2011 Contribution to the taxonomy and distribution of eight ray species (Chondrichthyes, Batoidea) from coastal waters of Thailand Simon Weigmann ABSTRACT: A collection of 24 rays from eight different species, obtained in 1993 from the marine shelf around Thailand, was examined in this study. The rays were determined, morphometrically and meristically analyzed,
Manta Ray of Hope 2011 Report
The Global Threat to Manta and Mobula Rays Shawn Heinrichs, Mary O’Malley, Hannah Medd, Paul Hilton. PDF – Download
Two new species of deep-sea skates
Published on 10. January 2012 Two new softnose skates of the genus Brochiraja (Rajoidei: Arhynchobatidae) from the deepwater slopes and banks of the Norfolk Ridge (South-West Pacific) Peter R. Last and Bernard Séret ABSTRACT: Two new species of the softnose skate genus Brochiraja are described based on material collected from the Norfolk Ridge in the
Sex-Biased Dispersal in the Scalloped Hammerhead Shark
Published on 10. January 2012 Global Phylogeography with Mixed-Marker Analysis Reveals Male-Mediated Dispersal in the Endangered Scalloped Hammerhead Shark (Sphyrna lewini) Toby S. Daly-Engel, Kanesa D. Seraphin, Kim N. Holland, John P. Coffey, Holly A. Nance, Robert J. Toonen, Brian W. Bowen ABSTRACT: Background The scalloped hammerhead shark, Sphyrna lewini, is a large endangered predator
NSW Briefing Note – Wild Fisheries
NSW Government Primary Industries Science and Research BRIEFING NOTE Wild Fisheries – Winter 2011 PDF – Download
Review of the taxonomy of chondrichthyan fishes
Published online on 05. January 2012 A review of the taxonomy of chondrichthyan fishes: a modern perspective W. T. White, P. R. Last ABSTRACT: Taxonomic clarity is a fundamental requirement as it forms the foundation of all other life sciences. In the last decade, chondrichthyan taxonomy has undergone a scientific renaissance with >180 new species
Florida Fishing Regulation for 2012
FLORIDA Saltwater Recreational 2012 FISHING REGULATION Valid from Jan 1, 2012 to June 30, 2012 See article on page 6 : FWC Increases Protection for Vulnerable Coastal Sharks, by Melissa Recks PDF – DOWNLOAD
Hybrids between Australian and common blacktip shark
Published online on 17. December 2011 Detection of interspecies hybridisation in Chondrichthyes: hybrids and hybrid offspring between Australian (Carcharhinus tilstoni) and common (C. limbatus) blacktip shark found in an Australian fishery Morgan et al. ABSTRACT: Interspecies hybridisation in nature is a well-studied phenomenon, but it has not been analysed using genetic markers in the class
Mercury bioaccumulation in elasmobranchs
by Nicholas Kutil and David L. Taylor. ABSTRACT: Mercury (Hg) is a toxic environmental contaminant that bioaccumulates in fish tissues, including numerous marine species. Cartilaginous fish of the subclass Elasmobranchii are important ecological constituents of marine ecosystems, yet the fate of Hg contaminants in their body tissues is largely unknown. In this study, four species
Contribution to the taxonomy and distribution of sharks from Thailand
Accepted 2nd January 2012 Contribution to the taxonomy and distribution of six shark species (Chondrichthyes, Elasmobranchii) from the Gulf of Thailand Simon Weigmann ABSTRACT: A collection of nine shark specimens from six different species, obtained in 1993 from the Gulf of Thailand, was examined in this study. The sharks were determined, morphometrically and meristically analyzed,
Studies on the smooth hammerhead shark in India
Published in 2011 Studies on population structure, mortality, growth and exploitation level of smooth hammerhead Sphyrna zygaena (L) (Carcharhiniformes – Sphyrnidae) in the coastal region of Kerala, India Sayd Manjusha, Balakrishna Madhusoodana Kurup, NarayannaneSaravannane, Veloorkirakathil Narayana Sanjeevan ABSTRACT: The hammerhead sharks (Sphyrnidae), have a circumglobal distribution in tropical and warm-temperate waters, and the smooth hammerhead,
Shark Attacks in Reunion Island
Survival Guide for surfers in Reunion Island, in French language. LE GUIDE DE SURVIE DU SURFER RUN EN PRESENCE DU RISQUE REQUIN En attendant des avancées significatives des pouvoirs publics en termes de gestion du risque requin PDF – Download