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Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator
Published on 04. January 2018 Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator James S E Lea, Bradley M Wetherbee, Lara L Sousa, Choy Aming, Neil Burnie, Nicolas E Humphries, Nuno Queiroz, Guy M Harvey, David W Sims, Mahmood S Shivji ABSTRACT: The ability to predict animal
DNA barcoding reveals the diversity of sharks in Guyana coastal markets
Published on 18. December 2017 DNA barcoding reveals the diversity of sharks in Guyana coastal markets Matthew A. Kolmann, Ahmed A. Elbassiouny, Elford A. Liverpool, Nathan R. Lovejoy ABSTRACT: A fundamental challenge for both sustainable fisheries and biodiversity protection in the Neotropics is the accurate determination of species identity. The biodiversity of the coastal sharks
Shark-diving tourism as a financing mechanism
Published on 21. December 2017 Shark-diving tourism as a financing mechanism for shark conservation strategies in Malaysia Gabriel MS Vianna, Mark G Meekan, Abbie A Rogers, Marit E Kragt, James M Alin, Johanna S Zimmerhackel ABSTRACT: This study estimated the economic value of the shark-diving industry in Semporna, the most popular diving destination of Malaysia,
An experiment with sharks and beach safety policy options
Published on 07. December 2017 Reducing fear to influence policy preferences: An experiment with sharks and beach safety policy options Christopher L. Pepin-Neff, Thomas Wynter ABSTRACT: This article reports on new research that finds certain messages reduce fear of sharks, key to promoting conservation-minded responses to shark bites. Here it is argued that the sophistication
Flaccid skin protects hagfishes from shark bites
Published on 13. December 2017 Flaccid skin protects hagfishes from shark bites Sarah Boggett, Jean-Luc Stiles, Adam P. Summers, Douglas S. Fudge ABSTRACT: Hagfishes defend themselves from fish predators by releasing large volumes of gill-clogging slime when they are attacked. Slime release is not anticipatory, but is only released after an attack has been initiated,
Fisheries-independent surveys identify critical habitats for young scalloped hammerhead sharks
Published online on 08. December 2017 Fisheries-independent surveys identify critical habitats for young scalloped hammerhead sharks (Sphyrna lewini) in the Rewa Delta, Fiji Amandine D. Marie, Cara Miller, Celso Cawich, Susanna Piovano, Ciro Rico ABSTRACT: Sharp declines in numerous shark populations around the world have generated considerable interest in better understanding and characterising their biology,
Genetic differentiation of Mediterranean-North Eastern Atlantic blue shark
Published on 06. December 2017 Genetic differentiation and phylogeography of Mediterranean-North Eastern Atlantic blue shark (Prionace glauca, L. 1758) using mitochondrial DNA: panmixia or complex stock structure? Agostino Leone, Ilenia Urso, Dimitrios Damalas, Jann Martinsohn, Antonella Zanzi , Stefano Mariani, Emilio Sperone, Primo Micarelli, Fulvio Garibaldi, Persefoni Megalofonou, Luca Bargelloni, Rafaella Franch, David Macias, Paulo
Environmental DNA reveals tropical shark diversity in contrasting levels of anthropogenic impact
Published on 04. December 2017 Environmental DNA reveals tropical shark diversity in contrasting levels of anthropogenic impact Judith Bakker, Owen S. Wangensteen, Demian D. Chapman, Germain Boussarie, Dayne Buddo, Tristan L. Guttridge, Heidi Hertler, David Mouillot, Laurent Vigliola, Stefano Mariani ABSTRACT: Sharks are charismatic predators that play a key role in most marine food webs.
Spatial separation without territoriality in shark communities
Published on 16. November 2017 Spatial separation without territoriality in shark communities Yannis P. Papastamatiou, Thomas W. Bodey, Alan M. Friedlander, Christopher G. Lowe, Darcy Bradley, Kevin Weng, Victoria Priestley, Jennifer E. Caselle ABSTRACT: Spatial separation within predator communities can arise via territoriality but also from competitive interactions between and within species. However, linking competitive
Global evaluation of shark sanctuaries
Published online on 10. November 2017 Global evaluation of shark sanctuaries Christine A.Ward-Paige, BorisWorm ABSTRACT: Due to well-documented declines in many shark populations there is increasing pressure to implement new management and rebuilding strategies at the national and international scale. Since 2009, fifteen coastal countries in the Atlantic, Indian and Pacific Oceans have opted to
Physical trade-offs shape the evolution of buoyancy control in sharks
Published on 08. November 2017 Physical trade-offs shape the evolution of buoyancy control in sharks Adrian C. Gleiss, Jean Potvin, Jeremy A. Goldbogen ABSTRACT: Buoyancy control is a fundamental aspect of aquatic life that has major implications for locomotor performance and ecological niche. Unlike terrestrial animals, the densities of aquatic animals are similar to the
Stress, post-release mortality, and recovery of discarded deep-sea sharks
Published on 06. Nomber 2017 Stress, post-release mortality, and recovery of commonly discarded deep-sea sharks caught on longlines Brendan Talwar, Edward J. Brooks, John W. Mandelman, R. Dean Grubbs ABSTRACT: Bycatch interactions with deep-sea elasmobranchs are increasingly common and can lead to dramatic declines in abundance over short time scales. Sharks hooked in the deep
Contrasting evolutionary patterns in populations of demersal sharks
Published on 06. November 2017 Contrasting evolutionary patterns in populations of demersal sharks throughout the western Mediterranean Sergio Ramírez-Amaro, Antonia Picornell, Miguel Arenas, Jose A. Castro, Enric Massutí, M. M. Ramon, Bàrbara Terrasa ABSTRACT: The spotted catshark (Scyliorhinus canicula) and the blackmouth catshark (Galeus melastomus) are demersal sharks showing a distinct bathymetric distribution in the
Sawfish captures in the Queensland Shark Control Program, 1962 to 2016
Published online on 17. October 2017 Sawfish captures in the Queensland Shark Control Program, 1962 to 2016 Barbara E. Wueringer ABSTRACT: Within the Great Barrier Reef World Heritage Area in Queensland, Australia, lack of information on the distribution of sawfishes presents difficulty for informed management of their habitats and populations. This study aims to provide
Species composition of the international shark fin trade
Published online on 27. October 2017 Species composition of the international shark fin trade assessed through a retail-market survey in Hong Kong Andrew T. Fields, Gunter A. Fischer, Stanley K. H. Shea, Huarong Zhang, Debra L. Abercrombie, Kevin A. Feldheim, Elizabeth A. Babcock, Demian D. Chapman ABSTRACT: The shark fin trade is a major driver