Scientific Papers

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Shark conservation issues among users of a shark angling online forum

Shark conservation issues among users of a shark angling online forum

Published online on 12. August 2017 Fishing practices and representations of shark conservation issues among users of a land-based shark angling online forum David S. Shiffman, Catherine Macdonald, Harry Y. Ganz, Neil Hammerschlag ABSTRACT: Recreational fisheries can play a significant role in the population dynamics of threatened fish species, but have received much less research

Identification of ciguatoxins in a shark involved in a fatal food poisoning

Identification of ciguatoxins in a shark involved in a fatal food poisoning

Published on 15. August 2017 Identification of ciguatoxins in a shark involved in a fatal food poisoning in the Indian Ocean Jorge Diogène, Laia Reverté, Maria Rambla-Alegre, Vanessa del Río, Pablo de la Iglesia, Mònica Campàs, Oscar Palacios, Cintia Flores, Josep Caixach, Christian Ralijaona, Iony Razanajatovo, Agathe Pirog, Hélène Magalon, Nathalie Arnich & Jean Turquet

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Contrasting complexity of adjacent habitats influences the strength of cascading predatory effects

Contrasting complexity of adjacent habitats influences the strength of cascading predatory effects

Published on 12. August 2017 Contrasting complexity of adjacent habitats influences the strength of cascading predatory effects James E. Byers, Zachary C. Holmes, Jennafer C. Malek ABSTRACT: Although cascading effects of top predators can help structure communities, their influence may vary across habitats that differentially protect prey. Therefore, to understand how and to what degree

Abundance and size structure of a reef shark population within a marine reserve

Abundance and size structure of a reef shark population within a marine reserve

Published on 03. August 2017 Abundance and size structure of a reef shark population w ithin a marine reserve has remained stable for more than a decade Mark E. Bond, Jasmine Valentin-Albanese, Elizabeth A. Babcock, Debra Abercrombie, Norlan F. Lamb, Ashbert Miranda, Ellen K. Pikitch, Demian D. Chapman ABSTRACT: Marine reserves, areas protected from exploitative

The trophic role of a large marine predator, the tiger shark

The trophic role of a large marine predator, the tiger shark

Published on 09 August 2017 The trophic role of a large marine predator, the tiger shark Galeocerdo cuvier Luciana C. Ferreira, Michele Thums, Michael R. Heithaus, Adam Barnett, Kátya G. Abrantes, Bonnie J. Holmes, Lara M. Zamora, Ashley J. Frisch, Julian G. Pepperell, Derek Burkholder, Jeremy Vaudo, Robert Nowicki, Jessica Meeuwig, Mark G. Meekan ABSTRACT:

Overfishing of an apex marine predator

Overfishing of an apex marine predator

Published online on 02. August 2017 Satellite telemetry reveals higher fishing mortality rates than previously estimated, suggesting overfishing of an apex marine predator Michael E. Byrne, Enric Cortés, Jeremy J. Vaudo, Guy C. McN. Harvey, Mark Sampson, Bradley M. Wetherbee, Mahmood Shivji ABSTRACT: Overfishing is a primary cause of population declines for many shark species

Occurrence of the whitetip reef shark at the Kermadec Islands

Occurrence of the whitetip reef shark at the  Kermadec Islands

Published on 05. July 2017 Occurrence of the whitetip reef shark Triaenodon obesus at the Kermadec Islands, Southwest Pacific Ocean C. A. J. Duffy, N. D. Forrester, T. K. Gibson & S. Hathaway ABSTRACT: Four observations of what was probably a single vagrant adult female whitetip reef shark Triaenodon obesus were made at Raoul and

Population structure and connectivity of tiger sharks across the Indo-Pacific Ocean basin

Population structure and connectivity of tiger sharks across the Indo-Pacific Ocean basin

Published on 05. July 2017 Population structure and connectivity of tiger sharks (Galeocerdo cuvier) across the Indo-Pacific Ocean basin Bonnie J. Holmes, Samuel M. Williams, Nicholas M. Otway, Einar E. Nielsen, Safia L. Maher, Mike B. Bennett, Jennifer R. Ovenden ABSTRACT: Population genetic structure using nine polymorphic nuclear microsatellite loci was assessed for the tiger

Feeding ecology of elasmobranch species in southeastern Brazil

Feeding ecology of elasmobranch species in southeastern Brazil

Published on 03. Juli 2017 Feeding ecology of elasmobranch species in southeastern Brazil Alessandra F. Viana, Jean L. Valentin, Marcelo Vianna ABSTRACT: The feeding ecology of five elasmobranch species was studied on the southern coast of Rio de Janeiro, southwestern Atlantic Ocean. The specimens were caught with a trawl or bottom longline between January 2006

Blood mercury levels and shark meat intake among workers in Gyeongsangbuk-do

Blood mercury levels and shark meat intake among workers in Gyeongsangbuk-do

Published on 27. June 2017 The associations between blood mercury levels and shark meat intake among workers in Gyeongsangbuk-do Gun Il Park, Young Seok Byun, Man Joong Jeon, Joon Sakong ABSTRACT: Background Shark meat is used as sacrificial food in Gyeongsangbuk-do, and is a major source of dietary mercury. This study aimed to evaluate the

Muscle development in the shark Scyliorhinus canicula

Muscle development in the shark Scyliorhinus canicula

Published on 21. June 2017 Muscle development in the shark Scyliorhinus canicula: implications for the evolution of the gnathostome head and paired appendage musculature Janine M. Ziermann, Renata Freitas, Rui Diogo ABSTRACT: Background The origin of jawed vertebrates was marked by profound reconfigurations of the skeleton and muscles of the head and by the acquisition

Movement Patterns of Bonnethead Sharks

Movement Patterns of Bonnethead Sharks

Published in June 2017 Movement Patterns of Sphyrna tiburo (Bonnethead Shark) in a Shallow Tidal Creek System Dontrece T. Smith and Mary Carla Curran ABSTRACT: The purpose of this study was to use acoustic telemetry to elucidate the small-scale habitat-utilization patterns of Sphyrna tiburo (Bonnethead Shark, hereafter, Bonnethead) in relation to diel and tidal cycles

Distribution, seasonal movements and habitat utilisation of an endangered shark from northern Australia

Distribution, seasonal movements and habitat utilisation of an endangered shark from northern Australia

Published on 21. June 2017 Distribution, seasonal movements and habitat utilisation of an endangered shark, Glyphis glyphis, from northern Australia B. J. Lyon, R. G. Dwyer, R. D. Pillans, H. A. Campbell, C. E. Franklin ABSTRACT: Euryhaline and freshwater elasmobranchs are considered amongst the most threatened groups of aquatic animals. The speartooth shark Glyphis glyphis

Importance of productive Mozambican coastal waters to whale sharks

Importance of productive Mozambican coastal waters to whale sharks

Published on 20. June 2017 Satellite tagging highlights the importance of productive Mozambican coastal waters to the ecology and conservation of whale sharks Christoph A Rohner​, Anthony J Richardson, Fabrice R A Jaine, Michael B Bennett, Scarla J Weeks, Geremy Cliff, David P Robinson, Simon J Pierce ABSTRACT: Recent advances in tracking technologies and analytical

Drivers of abundance and spatial distribution of reef-associated sharks

Drivers of abundance and spatial distribution of reef-associated sharks

Published on 31. May 2017 Drivers of abundance and spatial distribution of reef-associated sharks in an isolated atoll reef system David M. Tickler, Tom B. Letessier, Heather J. Koldewey, Jessica J. Meeuwig ABSTRACT: We investigated drivers of reef shark demography across a large and isolated marine protected area, the British Indian Ocean Territory Marine Reserve,

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