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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
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
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
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
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
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
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
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
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
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
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
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
Interacting with wildlife tourism increases activity of white sharks
Published on 06. June 2018 Interacting with wildlife tourism increases activity of white sharks Charlie Huveneers, Yuuki Y Watanabe, Nicholas L Payne, Jayson M Semmens ABSTRACT: Anthropogenic activities are dramatically changing marine ecosystems. Wildlife tourism is one of the fastest growing sectors of the tourism industry and has the potential to modify the natural environment
Age and growth of sharks
Published on 04. June 2018 Age and growth of sharks: do vertebral band pairs record age? Lisa J. Natanson, Gregory B. Skomal, Sarah L. Hoffmann, Marianne E. Porter, Kenneth J. Goldman, David Serra ABSTRACT: Inaccurate age estimates can have severe consequences in the management of elasmobranchs. Numerous studies in shark age validation have demonstrated a
Feeding behavior and trophic interaction of three shark species in the Galapagos Marine Reserve
Published on 25. May 2018 Feeding behavior and trophic interaction of three shark species in the Galapagos Marine Reserve Diego Páez-Rosas, Paul Insuasti-Zarate, Marjorie Riofrío-Lazo, Felipe Galván-Magaña ABSTRACT: There is great concern about the future of sharks in Ecuador because of the lack of biological knowledge of most species that inhabit the region. This paper