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Dorsal spine-associated luminescence in a counterilluminating lanternshark
Published on 21. February 2013 A deepwater fish with ‘lightsabers’ – dorsal spine-associated luminescence in a counterilluminating lanternshark Julien M. Claes, Mason N. Dean, Dan-Eric Nilsson, Nathan S. Hart, Jérôme Mallefet ABSTRACT: We report the discovery of light organs (photophores) adjacent to the dorsal defensive spines of a small deep-sea lanternshark (Etmopterus spinax). Using a
Movements, Philopatry and Expanded Depth Range of the Oceanic Whitetip Shark
Published on 20. February 2013 Complex Movements, Philopatry and Expanded Depth Range of a Severely Threatened Pelagic Shark, the Oceanic Whitetip (Carcharhinus longimanus) in the Western North Atlantic Howey-Jordan LA, Brooks EJ, Abercrombie DL, Jordan LKB, Brooks A, et al. ABSTRACT: Oceanic whitetip sharks (Carcharhinus longimanus) have recently been targeted for conservation in the western
Paternity testing using the poisonous sting in captive white-spotted eagle rays
Published online on 14. February 2013 Paternity testing using the poisonous sting in captive white-spotted eagle rays Aetobatus narinari: a non-invasive tool for captive sustainability programmes M. Janse, A. L. Kappe, B. L. M. Van Kuijk ABSTRACT: A group of captive white-spotted eagle rays Aetobatus narinari produced 20 offspring, with an unknown father. Part of
Abundance, distribution and habitat characteristics of winter skate in the Gulf of St Lawrence
Published online on 12. February 2013 Abundance, distribution and habitat characteristics of winter skate Leucoraja ocellata in the southern Gulf of St Lawrence: a population on the brink of extirpation? J. T. Kelly and J. M. Hanson ABSTRACT: Abundance indices of southern Gulf Leucoraja ocellata residing in Northumberland Strait, Canada, declined from 2001 to 2005,
Population structure, spatial distribution and life-history traits of blacktip reef sharks
Published online on 08. February 2013 Population structure, spatial distribution and life-history traits of blacktip reef sharks Carcharhinus melanopterus J. Mourier, S. C. Mills, S. Planes ABSTRACT: During a survey of the population of blacktip reef shark Carcharhinus melanopterus in Moorea (French Polynesia) between 2007 and 2011, population structural characteristics were estimated from 268 individuals.
Population metrics and movement of two sympatric carcharhinids
Published on 06. February 2013 Population metrics and movement of two sympatric carcharhinids: a comparison of the vulnerability of pelagic sharks of the southern Australian gulfs and shelves P. J. Rogers, C. Huveneers, S. D. Goldsworthy, W. W. L. Cheung, G. K. Jones, J. G. Mitchell and L. Seuront ABSTRACT: The dusky shark Carcharhinus obscurus
Life-history traits of a small-bodied coastal shark
Published on 06. February 2013 Life-history traits of a small-bodied coastal shark Adrian N. Gutteridge, Charlie Huveneers, Lindsay J. Marshall, Ian R. Tibbetts and Mike B. Bennett ABSTRACT: The life histories of small-bodied coastal sharks, particularly carcharhinids, are generally less conservative than those of large-bodied species. The present study investigated the life history of the
First Record of the Grey Reef Shark from the Lakshadweep Sea
Published on 26. January 2013 First Record of the Grey Reef Shark Carcharhinus amblyrhynchos, (Bleeker, 1856) (Carcharhiniformes: Carcharhinidae) from the Lakshadweep Sea, India K.V. Aneesh Kumar, S. Paresh Khanolkar, P. Pravin, B. Meenakumari, E.V. Radhakrishnan SUMMARY: … Information available on the diversity and abundance of carcharhinid sharks in Indian waters is very meager though they
Long-term trajectory of some elasmobranch species off Tuscany
Published online on 21. January 2013 Long-term trajectory of some elasmobranch species off the Tuscany coasts (NW Mediterranean) from 50 years of catch data Alessandro Ligas, Giacomo C. Osio, Paolo Sartor, Mario Sbrana, Stefano De Ranieri ABSTRACT: The time series of elasmobranch catch rates off the Tuscany coasts (NW Mediterranean) were investigated by means of
Tapeworm Eggs found in fossilized shark feces
Published online on 30. January 2013 Tapeworm Eggs in a 270 Million-Year-Old Shark Coprolite Paula C. Dentzien-Dias, George Poinar Jr, Ana Emilia Q. de Figueiredo, Ana Carolina L. Pacheco, Bruno L. D. Horn, Cesar L. Schultz ABSTRACT: Remains of parasites in vertebrates are rare from the Mesozoic and Paleozoic. Once most parasites that live in
Two decades of annual skate catches in southern Gulf of St Lawrence
Published online on 25. January 2013 Two decades of annual landed and discarded catches of three southern Gulf of St Lawrence skate species estimated under multiple sources of uncertainty Hugues P. Benoît ABSTRACT: Estimating fishery impacts on commercially unimportant species is often hindered by limited and possibly biased data for landed and discarded catch, and
Genetic identification of Carcharhinus sharks from the SW Atlantic Ocean
Published online on 29. January 2013 Genetic identification of Carcharhinus sharks from the southwest Atlantic Ocean (Chondrichthyes: Carcharhiniformes) R. R. Domingues, A. F. de Amorim, A. W. S. Hilsdorf ABSTRACT: Sharks of the genus Carcharhinus exhibit subtle morphological differences that are difficult to observe because of the common practice of head and fin removal, making
Inferred global connectivity of whale shark populations
Published online on 29. January 2013 Inferred global connectivity of whale shark Rhincodon typus populations A. M. M. Sequeira, C. Mellin, M. G. Meekan, D. W. Sims, C. J. A. Bradshaw ABSTRACT: Ten years have passed since the last synopsis of whale shark Rhincodon typus biogeography. While a recent review of the species’ biology and
Science, policy, and the public discourse of shark attack
Published on 23. January 2013 Science, policy, and the public discourse of shark “attack”: a proposal for reclassifying human–shark interactions Christopher Neff and Robert Hueter ABSTRACT: There are few phrases in the Western world that evoke as much emotion or as powerful an image as the words “shark” and “attack.” However, not all “shark attacks”
A new genus and species of false cat sharks from the Indian Ocean
Published on 29. January 2013 Planonasus parini n. g. and n. sp., a new genus and species of false cat sharks (Carchariniformes, Pseudotriakidae) from the deep northwestern Indian Ocean off Socotra Islands Simon Weigmann, Matthias F.W. Stehmann, Ralf Thiel ABSTRACT: A new genus and species of the carcharhiniform family Pseudotriakidae is described based on three