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Using biological variables and reproductive strategy of the undulate ray to evaluate productivity and susceptibility to exploitation
Published online on 23. March 2015 Using biological variables and reproductive strategy of the undulate ray Raja undulata to evaluate productivity and susceptibility to exploitation B. Serra-Pereira, K. Erzini, I. Figueiredo ABSTRACT: The present work provides a detailed analysis of the reproductive strategy of the undulate ray Raja undulata in Portuguese mainland waters. The species
Variation in carcass and fin-weight ratios for sharks captured on demersal set-lines off eastern Australia
Published online on 13. March 2015 Variation in whole-, landed- and trimmed-carcass and fin-weight ratios for various sharks captured on demersal set-lines off eastern Australia Naomi Pleizier, Lee F.G. Gutowsky, Victor M. Peddemors, Steven J. Cooke, Paul A. Butcher ABSTRACT: Sharks are important apex predators in marine systems but many populations have experienced large declines,
Demographic history and the South Pacific dispersal barrier for school shark
Published online on 10. March 2015 Demographic history and the South Pacific dispersal barrier for school shark (Galeorhinus galeus) inferred by mitochondrial DNA and microsatellite DNA mark Sebastián Hernández, Ross Daley, Terry Walker, Matias Braccini, Andrea Varela, Malcolm P. Francis, Peter A. Ritchie ABSTRACT: We used mitochondrial DNA (mtDNA) control region (CR) sequences and genotypes
First record of Mollisquama sp. from the Gulf of Mexico, with a morphological comparison to Mollisquama parini Dolganov
Published on 22. April 2015 First record of Mollisquama sp. (Chondrichthyes: Squaliformes: Dalatiidae) from the Gulf of Mexico, with a morphological comparison to the holotype description of Mollisquama parini Dolganov Mark A. Grace, Michael H. Doosey, Henry L. Bart, Gavin J. P. Naylor ABSTRACT: The description of the pocket shark genus Mollisquama (M. parini Dolganov,
Molecular development of chondrichthyan claspers and the evolution of copulatory organs
Published on 14. April 2015 Molecular development of chondrichthyan claspers and the evolution of copulatory organs Katherine L. O’Shaughnessy, Randall D. Dahn, Martin J. Cohn ABSTRACT: The earliest known vertebrate copulatory organs are claspers, paired penis-like structures that are associated with evolution of internal fertilization and viviparity in Devonian placoderms. Today, only male chondrichthyans possess
Molecular and Morphological Analyses Reveal Phylogenetic Relationships of Stingrays Focusing on Dasyatidae
Published on 13. April 2015 Molecular and Morphological Analyses Reveal Phylogenetic Relationships of Stingrays Focusing on the Family Dasyatidae (Myliobatiformes) Kean Chong Lim, Phaik-Eem Lim, Ving Ching Chong, Kar-Hoe Loh ABSTRACT: Elucidating the phylogenetic relationships of the current but problematic Dasyatidae (Order Myliobatiformes) was the first priority of the current study. Here, we studied three
Assessing the viability of releasing captive-bred wobbegongs to restock depleted populations
Published on 09. April 2015 Born to be free? Assessing the viability of releasing captive-bred wobbegongs to restock depleted populations Kathryn A. Lee, Charlie Huveneers, Victor Peddemors, Andrew Boomer, Robert G. Harcourt ABSTRACT: Large predatory fishes, such as sharks, play an important functional role within marine ecosystems. Restocking of depleted populations has been extensively studied
Reconstructing habitat use by juvenile salmon sharks links upwelling to strandings in the California Current
Published on 09. April 2015 Reconstructing habitat use by juvenile salmon sharks links upwelling to strandings in the California Current Aaron B. Carlisle, Steven Y. Litvin, Elliott L. Hazen, Daniel J. Madigan, Kenneth J. Goldman, Robert N. Lea, Barbara A. Block ABSTRACT: The use of nursery areas by elasmobranchs is an important life history strategy
Ecological Drivers of Shark Distributions along a Tropical Coastline
Published on 08. April 2015 Ecological Drivers of Shark Distributions along a Tropical Coastline Peter M. Yates, Michelle R. Heupel, Andrew J. Tobin, Colin A. Simpfendorfer ABSTRACT: As coastal species experience increasing anthropogenic pressures there is a growing need to characterise the ecological drivers of their abundance and habitat use, and understand how they may
Development and microstructure of tooth histotypes in the blue shark and the great white shark
Published on 03. April 2015 Development and microstructure of tooth histotypes in the blue shark, Prionace glauca (Carcharhiniformes: Carcharhinidae) and the great white shark, Carcharodon carcharias (Lamniformes: Lamnidae) Joshua K. Moyer, Mark L. Riccio, William E. Bemis ABSTRACT: Elasmobranchs exhibit two distinct arrangements of mineralized tissues in the teeth that are known as orthodont and
Effect of the Deep Sea Shark-liver Oil Component Food on Secretion Type Immunoglobulin A Density of Saliva in the Normal Man and Woman Adult
Published on 10. April 2015 Effect of the Deep Sea Shark-liver Oil Component Food on Secretion Type Immunoglobulin A Density of Saliva in the Normal Man and Woman Adult Naobumi Hamadate, Yoshiyuki Matsumoto, Mami Shikura, Chiemi Mizukami, Kayoko Seto, Tetsuro Yamamoto, Hideyo Yamaguchi, Muneaki Iizuka, Etsushi Yamamoto, Sumio Kondo, Kazunaga Yazawa ABSTRACT: Secretory immunoglobulin A
Laser photogrammetry improves size and demographic estimates for whale sharks
Published on 07. April 2015 Laser photogrammetry improves size and demographic estimates for whale sharks Christoph A. Rohner, Anthony J. Richardson, Clare E.M. Prebble, Andrea D. Marshall, Michael B. Bennett, Scarla J.Weeks, Geremy Cliff, Sabine P.Wintner, Simon J. Pierce ABSTRACT: Whale sharks Rhincodon typus are globally threatened, but a lack of biological and demographic information
Acoustic telemetry reveals cryptic residency of whale sharks
Published on 01. April 2015 Acoustic telemetry reveals cryptic residency of whale sharks E. Fernando Cagua, Jesse E. M. Cochran, Christoph A. Rohner, Clare E. M. Prebble, Tane H. Sinclair-Taylor, Simon J. Pierce, Michael L. Berumen ABSTRACT: Although whale sharks (Rhincodon typus) have been documented to move thousands of kilometres, they are most frequently observed
Levels of arsenic, cadmium, lead and mercury in mobulid rays
Published online on 16. March 2015 Levels of arsenic, cadmium, lead and mercury in the branchial plate and muscle tissue of mobulid rays Michelle S.M. Ooi, Kathy A. Townsend, Michael B. Bennett, Anthony J. Richardson, Daniel Fernando, Cesar A. Villa, Caroline Gaus ABSTRACT: Mobulid rays are targeted in fisheries for their branchial plates, for use
Ginglymostoma unami, a new species of nurse shark from the Tropical Eastern Pacific
Published in March 2015 Ginglymostoma unami sp. nov. (Chondrichthyes: Orectolobiformes: Ginglymostomatidae): a new species of nurse shark from the Tropical Eastern Pacific Luis Fernando Del Moral-Flores, Emmanuel Ramírez-Antonio, Arturo Angulo, Gerardo Pérez-Ponce de León ABSTRACT: A new species of shark belonging to the family Ginglymostomatidae is herein described; the new species show a wide distribution