Home » Archives
Effects on abundance indices of sharks caught by pelagic longliners off southern Africa
Published on 24. October 2018 Effects of inconsistent reporting, regulation changes and market demand on abundance indices of sharks caught by pelagic longliners off southern Africa Gareth L. Jordaan, Jorge Santos, Johan C. Groeneveld ABSTRACT: The assumption of a proportional relationship between catch-per-unit-effort (CPUE) and the abundance of sharks caught by pelagic longliners is tenuous
Mechanical behavior of shark vertebral centra at biologically relevant strains
Published on 23. October 2018 Mechanical behavior of shark vertebral centra at biologically relevant strains D. I. Ingle, L. J. Natanson, M. E. Porter ABSTRACT: Cartilaginous shark skeletons experience axial deformation at the intervertebral joints, but also within the mineralized cartilaginous centrum, which can compress to between 3 – 8% of its original length in
Leveraging satellite technology to create true shark sanctuaries
Published on 09. October 2018 Leveraging satellite technology to create true shark sanctuaries Darcy Bradley, Juan Mayorga, Douglas J. McCauley, Reniel B. Cabral, Patric Douglas, Steven D. Gaines ABSTRACT: Shark sanctuaries are an ambitious attempt to protect huge areas of ocean space to curtail overfishing of sharks. If shark sanctuaries are to succeed, effective surveillance
Mitochondrial DNA haplotype diversity and origin of captive sand tiger sharks
Published on 31. July 2018 Mitochondrial DNA haplotype diversity and origin of captive sand tiger sharks (Carcharias taurus) Robert Wynne, Craig Wilding ABSTRACT: The sand tiger shark (Carcharias taurus) is listed as globally vulnerable with geographically confined and disrupted global populations with little or no gene flow between them. Captive breeding in aquaria of these
Using tagging data and aerial surveys to incorporate availability bias in the abundance estimation of blue sharks
Published on 11. September 2018 Using tagging data and aerial surveys to incorporate availability bias in the abundance estimation of blue sharks (Prionace glauca) Milaja Nykänen , Mark Jessopp, Thomas K. Doyle, Luke A. Harman, Ana Cañadas, Patricia Breen, William Hunt, Mick Mackey, Oliver Ó Cadhla, David Reid, Emer Rogan ABSTRACT: There is worldwide concern
New records of sharks from the Andaman and Nicobar Archipelago in India
Published on 10. September 2018 New records of sharks (Elasmobranchii) from the Andaman and Nicobar Archipelago in India with notes on current checklists Zoya Tyabji, Rima W. Jabado, Dipani Sutaria ABSTRACT: The diversity of sharks occurring off the Andaman and Nicobar Archipelago in India has received increased attention in recent years. Yet, available checklists are
Shark fin as a case study: Out of control means off the menu
Published on 08. September 2018 Out of control means off the menu: The case for ceasing consumption of luxury products from highly vulnerable species when international trade cannot be adequately controlled; shark fin as a case study Yvonne Sadovy de Mitcheson, Astrid Alexandra Andersson, Alex Hofford, Calton S.W.Law, Loby C.Y.Hau, Daniel Pauly ABSTRACT: As luxury
Bonnethead sharks digest seagrass
Published on 5. September 2018 Seagrass digestion by a notorious ‘carnivore’ Samantha C. Leigh, Yannis P. Papastamatiou, Donovan P. German ABSTRACT: What an animal consumes and what an animal digests and assimilates for energetic demands are not always synonymous. Sharks, uniformly accepted as carnivores, have guts that are presumed to be well suited for a
Attitudes and misconceptions towards sharks and shark meat consumption in Peru
Published on 29. August 2018 Attitudes and misconceptions towards sharks and shark meat consumption along the Peruvian coast Rocío López de la Lama, Santiago De la Puente, Juan Carlos Riveros ABSTRACT: Misconceptions, lack of knowledge, and negative attitudes towards sharks act as barriers preventing actions required to tackle threats to shark populations, limiting the success
On the complexity of shark bite wounds
Published in August 2018 On the complexity of shark bite wounds: From associated bacteria to trauma management and wound repair Isci ET, Ritter E. ABSTRACT: The mouth of a shark is a breeding ground for a large variety of bacteria which can easily get transferred onto a human body in the event of a shark
Overlap between highly suitable habitats and longline gear management areas reveals vulnerable and protected regions for highly migratory sharks
Published on 23. August 2018 Overlap between highly suitable habitats and longline gear management areas reveals vulnerable and protected regions for highly migratory sharks Hannah Calich, Maria Estevanez, Neil Hammerschlag ABSTRACT: Highly migratory species (e.g. sharks, tunas, turtles, cetaceans) present unique conservation management challenges due to their wide-ranging movements. Consequently, the extent to which management
Life-history traits inform on population trends when assessing the conservation status of a declining tiger shark population
Published on 20. August 2018 Life-history traits inform on population trends when assessing the conservation status of a declining tiger shark population Christopher Brown, George Roff ABSTRACT: The assessment of the conservation status of wide ranging species depends on estimates of the magnitude of their population trends. The accuracy of global trend estimates will depend
Comparative morphology and systematics of the cookiecutter sharks
Published on 20. August 2018 Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae) Flávia de Figueiredo Petean, Marcelo R. de Carvalho ABSTRACT: The dalatiid genus Isistius Gill (1864) has three valid species currently recognized in the literature: Isistius brasiliensis Quoy & Gaimard (1824), I. plutodus Garrick & Springer
Shark management strategy policy considerations
Published online on 17. August 2018 Shark management strategy policy considerations: Community preferences, reasoning and speculations Peter Simmons, Mehmet Ibrahim Mehmet ABSTRACT: Shark management is contested and community support often influences policy. Decision makers are unlikely to be comfortable explaining policy solely based on expert advice, scientific data, or any information, if they feel out
Limited latitudinal ranging of juvenile whale sharks in the Western Indian Ocean
Published on 09. August 2018 Limited latitudinal ranging of juvenile whale sharks in the Western Indian Ocean suggests the existence of regional management units Clare E. M. Prebble, Christoph A. Rohner, Simon J. Pierce, David P. Robinson, Mohammed Y. Jaidah, Steffen S. Bach, Clive N. Trueman ABSTRACT: Assessing the movements and connectivity of whale sharks