Scientific Papers

Comparative morphology and systematics of the cookiecutter sharks

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

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

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

Scene through the eyes of an apex predator

Scene through the eyes of an apex predator

Published on 01. August 2018 Scene through the eyes of an apex predator: a comparative analysis of the shark visual system Shaun P Collin ABSTRACT: The eyes of apex predators, such as the shark, have fascinated comparative visual neuroscientists for hundreds of years with respect to how they perceive the dark depths of their ocean

Interpretation of silky shark relative abundance indices for the equatorial Pacific Ocean

Interpretation of silky shark relative abundance indices for the equatorial Pacific Ocean

Published on 30. July 2018 The importance of environment and life stage on interpretation of silky shark relative abundance indices for the equatorial Pacific Ocean Cleridy E. Lennert‐Cody, Shelley C. Clarke, Alexandre Aires‐da‐Silva, Mark N. Maunder, Peter J. S. Franks, Marlon Román, Arthur J. Miller, Mihoko Minami ABSTRACT: Recent large fluctuations in an index of

Drivers of reef shark abundance and biomass in the Solomon Islands

Drivers of reef shark abundance and biomass in the Solomon Islands

Published on 30. July 2018 Drivers of reef shark abundance and biomass in the Solomon Islands Jordan S. Goetze , Tim J. Langlois, Joe McCarter, Colin A. Simpfendorfer, Alec Hughes, Jacob Tingo Leve, Stacy D. Jupiter ABSTRACT: Remote island nations face a number of challenges in addressing concerns about shark population status, including access to

Basking shark breaching behaviour observations West of Shetland

Basking shark breaching behaviour observations West of Shetland

Published in 2018 Basking shark breaching behaviour observations West of Shetland Witt M., Godley B.J. ABSTRACT: This study reports observations of basking sharks (Cetorhinus maximus) sighted during an offshore geophysical survey conducted in July and August 2013, west of Shetland, UK. During the 38-day survey, trained and dedicated marine wildlife observers recorded 19 sightings of

On the Separation Mechanism between a Shark’s Tooth and Its Jaw Base

On the Separation Mechanism between a Shark’s Tooth and Its Jaw Base

Published on 23. July 2018 On the Separation Mechanism between a Shark’s Tooth and Its Jaw Base, with Special Emphasis on an Observation Made from a White Shark, Carcharodon carcharias Erich K. Ritter, Andreas Dellios ABSTRACT: Feeding is the likely cause for tooth shedding in sharks. Although the overall process of loosing teeth has been

Shark and ray diversity in the Tropical America

Shark and ray diversity in the Tropical America

Published on 20. July 2018 Shark and ray diversity in the Tropical America (Neotropics)—an examination of environmental and historical factors affecting diversity Jorge Domingo Carrillo-Briceño, Juan D. Carrillo, Orangel Antonio Aguilera, Marcelo R. Sanchez-Villagra​ ABSTRACT: We present the first comprehensive review of the present and past shark and ray diversity in marine waters of Tropical

Permanent magnets reduce bycatch of benthic sharks in an ocean trap fishery

Permanent magnets reduce bycatch of benthic sharks in an ocean trap fishery

Published online on 18. July 2018 Permanent magnets reduce bycatch of benthic sharks in an ocean trap fishery R.J.Richards, V.Raoult, D.M.Powter, T.F.Gaston ABSTRACT: Sharks and rays are often caught as bycatch by commercial fisheries, and high incidences of bycatch are partially to blame for the declines in many populations of elasmobranchs. In an effort to

Study of pallial neurogenesis in shark embryos

Study of pallial neurogenesis in shark embryos

Published on 6. July 2018 Study of pallial neurogenesis in shark embryos and the evolutionary origin of the subventricular zone Docampo-Seara A, Lagadec R, Mazan S, Rodríguez MA, Quintana-Urzainqui I, Candal E ABSTRACT: The dorsal part of the developing telencephalon is one of the brain areas that has suffered most drastic changes throughout vertebrate evolution.

Changes in Media Portrayal of Human-wildlife Conflict During Successive Fatal Shark Bites

Changes in Media Portrayal of Human-wildlife Conflict During Successive Fatal Shark Bites

Published on 2. July 2018 Changes in Media Portrayal of Human-wildlife Conflict During Successive Fatal Shark Bites Etienne Sabatier, Charlie Huveneers ABSTRACT: Encounters between humans and wildlife that result in human fatalities can generate public anxiety and increase pressure on conservation managers and governments for risk mitigation. Low probability-high consequence events such as shark bites

Shark Related Injuries

Shark Related Injuries

Published on 26. June 2018 Shark Related Injuries: A Case Series of Emergency Department Patients. Tomberg RJ, Cachaper GA, Weingart GS ABSTRACT: INTRODUCTION: Shark-related-injuries (SRIs) are not thoroughly evaluated in the medical literature given their rare occurrence. Previous studies involve the utilization of large-independent databases and have demonstrated that shark attacks appear to be increasing,

Squalus clarkae sp. nov., a new dogfish shark from the Northwest Atlantic and Gulf of Mexico

Squalus clarkae sp. nov., a new dogfish shark from the Northwest Atlantic and Gulf of Mexico

Published on 09. July 2018 Squalus clarkae sp. nov., a new dogfish shark from the Northwest Atlantic and Gulf of Mexico, with comments on the Squalus mitsukurii species complex MARIAH O. PFLEGER, R. DEAN GRUBBS, CHARLES F. COTTON, TOBY S. DALY-ENGEL ABSTRACT: Sharks of the genus Squalus have slow reproductive rates coupled with low genetic

Discovery of a multispecies shark aggregation in the Ba Estuary

Discovery of a multispecies shark aggregation in the Ba Estuary

Published on 25. June 2018 Discovery of a multispecies shark aggregation and parturition area in the Ba Estuary, Fiji Islands Tom Vierus, Stefan Gehrig, Juerg M. Brunnschweiler, Kerstin Glaus, Martin Zimmer, Amandine D. Marie, Ciro Rico ABSTRACT: Population declines in shark species have been reported on local and global scales, with overfishing, habitat destruction and