Scientific Papers

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Angular roughshark in captivity feeding exclusively on elasmobranch eggs: an overlooked feeding niche or a matter of individual taste?

Angular roughshark in captivity feeding exclusively on elasmobranch eggs: an overlooked feeding niche or a matter of individual taste?

Published online on 17. August 2015 Angular roughshark Oxynotus centrina (Squaliformes: Oxynotidae) in captivity feeding exclusively on elasmobranch eggs: an overlooked feeding niche or a matter of individual taste? J. Guallart, P. García-Salinas, A. E. Ahuir-Baraja, M. Guimerans, J. R. Ellis, M. Roche ABSTRACT: A specimen of angular roughshark Oxynotus centrina has been kept successfully

A shift in anterior–posterior positional information underlies the fin-to-limb evolution

A shift in anterior–posterior positional information underlies the fin-to-limb evolution

Published on 18. August 2015 A shift in anterior–posterior positional information underlies the fin-to-limb evolution Koh Onimaru, Shigehiro Kuraku, Wataru Takagi, Susumu Hyodo, James Sharpe, Mikiko Tanaka ABSTRACT: The pectoral fins of ancestral fishes had multiple proximal elements connected to their pectoral girdles. During the fin-to-limb transition, anterior proximal elements were lost and only the

Age and growth of the tiger shark off the east coast of Australia

Age and growth of the tiger shark off the east coast of Australia

Published online on 06. August 2015 Age and growth of the tiger shark Galeocerdo cuvier off the east coast of Australia B. J. Holmes, V. M. Peddemors, A. N. Gutteridge, P. T. Geraghty, R. W. K. Chan, I. R. Tibbetts, M. B. Bennett ABSTRACT: Total lengths (LT) at age and growth rates for south-west Pacific

Differential gene flow patterns for two commercially exploited shark species along the south–west coast of South Africa

Differential gene flow patterns for two commercially exploited shark species along the south–west coast of South Africa

Published online on 04. August 2015 Differential gene flow patterns for two commercially exploited shark species, tope (Galeorhinus galeus) and common smoothhound (Mustelus mustelus) along the south–west coast of South Africa Daphne N. Bitalo, Simo N. Maduna, Charlene da Silva, Rouvay Roodt-Wilding, Aletta E. Bester-van der Merwe ABSTRACT: South Africa’s demersal sharks are threatened by

DNA evidence of the consumption of short-beaked common dolphin by the shortfin mako shark

DNA evidence of the consumption of short-beaked common dolphin by the shortfin mako shark

Published online on 21.July 2015 DNA evidence of the consumption of short-beaked common dolphin Delphinus delphis by the shortfin mako shark Isurus oxyrinchus Sebastián Biton Porsmoguer, Daniela Banaru, Charles F. Boudouresque, Ivan Dekeyser, Amélia Viricel, Manuel Merchán ABSTRACT: Stomachs of shortfin mako sharks Isurus oxyrinchus caught in the northeastern Atlantic by Iberian longliners were analyzed.

The small-scale shark fisheries in the southern Gulf of Mexico

The small-scale shark fisheries in the southern Gulf of Mexico

Published online on 25. July 2015 The small-scale shark fisheries in the southern Gulf of Mexico: Understanding their heterogeneity to improve their management Juan Carlos Pérez-Jiménez, Iván Mendez-Loeza ABSTRACT: Fisheries targeting sharks in the southern Gulf of Mexico are generally restricted to a few months or fish in several months but participate in other fisheries.

Predictive habitat suitability models to aid conservation of elasmobranch diversity in the central Mediterranean Sea

Predictive habitat suitability models to aid conservation of elasmobranch diversity in the central Mediterranean Sea

Published online on 14. August 2015 Predictive habitat suitability models to aid conservation of elasmobranch diversity in the central Mediterranean Sea V. Lauria, M. Gristina, M. J. Attrill, F. Fiorentino, G. Garofalo ABSTRACT: Commercial fisheries have dramatically impacted elasmobranch populations worldwide. With high capture and bycatch rates, the abundance of many species is rapidly declining

Dramatic increase in sea otter mortality from white sharks in California

Dramatic increase in sea otter mortality from white sharks in California

Published online on 14. August 2015 Dramatic increase in sea otter mortality from white sharks in California M. Tim Tinker, Brian B. Hatfield, Michael D. Harris, Jack A. Ames ABSTRACT: Although southern sea otters (Enhydra lutris nereis) are not considered prey for white sharks (Carcharodon carcharias), sharks do nonetheless bite sea otters. We analyzed spatial

Multiple paternity and hybridization in two smooth-hound sharks

Multiple paternity and hybridization in two smooth-hound sharks

Published on 10. August 2015 Multiple paternity and hybridization in two smooth-hound sharks Ilaria A. M. Marino, Emilio Riginella, Michele Gristina, Maria B. Rasotto, Lorenzo Zane, Carlotta Mazzoldi ABSTRACT: Multiple paternity appears to be a common trait of elasmobranch mating systems, with its occurrence likely driven by convenience, due to females seeking to minimize the

A histology-based study in apparently healthy wild freshwater stingrays

A histology-based study in apparently healthy wild freshwater stingrays

Published on 06. August 2015 A histology-based study in apparently healthy wild freshwater stingrays Potamotrygon motoro Julieta Engrácia de Moraes, Jefferson Yunis Aguinaga, Pedro de Oliveira Viadanna, Flávio Ruas de Moraes ABSTRACT: Histopathological studies are important as a reference in pathological process. There are a few of these studies in elasmobranchs. The aim of this

Tonic immobility as an anaesthetic for elasmobranchs during surgical implantation procedures

Tonic immobility as an anaesthetic for elasmobranchs during surgical implantation procedures

Published online on 17. June 2015 Tonic immobility as an anaesthetic for elasmobranchs during surgical implantation procedures Steven T. Kessel, Nigel E. Hussey ABSTRACT: Tonic immobility is a widely used technique for the surgical implantation of acoustic tags in elasmobranchs (sharks, skates, and rays), yet it is still not broadly recognised as an acceptable procedure

Genetic analysis of stock structure of blue shark in the north Pacific ocean

Genetic analysis of stock structure of blue shark in the north Pacific ocean

Published online on 31. July 2015 Genetic analysis of stock structure of blue shark (Prionace glauca) in the north Pacific ocean J.R. King, M. Wetklo, J. Supernault, M. Taguchi, K. Yokawa, O. Sosa-Nishizaki, R.E. Withler ABSTRACT: The blue shark (Prionace glauca) is globally distributed, occupying the pelagic, open ocean in temperate and tropical waters. It

Reproductive biology of the Alaska skate, with comments on an intersexual individual

Reproductive biology of the Alaska skate, with comments on an intersexual individual

Published online on 29. July 2015 Reproductive biology of the Alaska skate Bathyraja parmifera, with comments on an intersexual individual M. E. Matta ABSTRACT: A total of 1357 specimens of Alaska skate Bathyraja parmifera were collected in the eastern Bering Sea by fisheries observers and during scientific groundfish surveys from 2003 to 2005. Male and

A case of genetic polyandry in the shortfin mako shark

A case of genetic polyandry in the shortfin mako shark

Published online on 28. July 2015 A case of genetic polyandry in the shortfin mako Isurus oxyrinchus S. Corrigan, D. Kacev, J. Werry ABSTRACT: This article documents a case of genetic polyandry in the oceanic and pelagic shortfin mako Isurus oxyrinchus and briefly comments on the implications of this finding. Journal of Fish Biology. doi:

Thesis: The Reproductive Biology of the Finetooth Shark in the Northwest Atlantic Ocean

Thesis: The Reproductive Biology of the Finetooth Shark in the Northwest Atlantic Ocean

Published in May 2015 The Reproductive Biology of the Finetooth Shark, Carcharhinus isodon, in the Northwest Atlantic Ocean Amanda Brown ABSTRACT: Shark fisheries are a multimillion dollar industry in the United States and have significant contributions both recreationally and commercially. In order to maintain this industry, fisheries must be properly managed. An understanding of life

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