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Squalus bassi sp. nov., a new long-snouted spurdog from the Agulhas Bank
Published on 14. September 2017 Squalus bassi sp. nov., a new long-snouted spurdog (Chondrichthyes: Squaliformes: Squalidae) from the Agulhas Bank S. T. de. F. L. Viana, M. R. de Carvalho, D. A. Ebert ABSTRACT: The long-snouted African spurdog Squalus bassi sp. nov. is described based on material collected from the outer shelf and upper continental
Studying morphology allows the detection of bias in routine fisheries sampling
Published online on 16. October 2017 Shark length–length relationships: Studying morphology allows the detection of bias in routine fisheries sampling Agustín M. De Wysiecki, J. Matías Braccini ABSTRACT: Reliable information on length–length relationships is required for standardising and comparing size measures and for improving the use of available data and biological information collected as a
Reef accessibility impairs the protection of sharks
Published online on 17. October 2017 Reef accessibility impairs the protection of sharks Jean-Baptiste Juhel, Laurent Vigliola, David Mouillot, Michel Kulbicki, Tom B. Letessier, Jessica J. Meeuwig, Laurent Wantiez ABSTRACT: Reef sharks are declining world-wide under ever-increasing fishing pressure, with potential consequences on ecosystem functioning. Marine protected areas (MPAs) are currently one of the management
The utility of bioenergetics modelling in quantifying predation rates of marine apex predators
Published on 11. October 2017 The utility of bioenergetics modelling in quantifying predation rates of marine apex predators: Ecological and fisheries implications A. Barnett, M. Braccini, C. L. Dudgeon, N. L. Payne, K. G. Abrantes, M. Sheaves, E. P. Snelling ABSTRACT: Predators play a crucial role in the structure and function of ecosystems. However, the
A multiplex PCR mini-barcode assay to identify processed shark products
Published on 11. October 2017 A multiplex PCR mini-barcode assay to identify processed shark products in the global trade Diego Cardeñosa, Andrew Fields, Debra Abercrombie, Kevin Feldheim, Stanley K. H. Shea, Demian D. Chapman ABSTRACT: Protecting sharks from overexploitation has become global priority after widespread population declines have occurred. Tracking catches and trade on a
Cephalopod prey of two demersal sharks caught in the Aegean Sea
Published on 03 October 2017 Cephalopod prey of two demersal sharks caught in the Aegean Sea (eastern Mediterranean) Vasiliki Kousteni, Paraskevi K. Karachle, Persefoni Megalofonou, Evgenia Lefkaditou ABSTRACT: This study concerns the cephalopod species that are part of the diet of the small-spotted catshark Scyliorhinus canicula and the longnose spurdog Squalus blainville sampled by commercial
Reciprocal Intraguild Predation between Alligator mississippiensis and Elasmobranchii
Published in September 2017 Reciprocal Intraguild Predation between Alligator mississippiensis (American Alligator) and Elasmobranchii in the Southeastern United States James C. Nifong and Russell H. Lowers ABSTRACT: The food habits and predatory interactions of Alligator mississippiensis (American Alligator) have been thoroughly studied within populations inhabiting inland freshwater ecosystems; however, it is increasingly evident that coastal
Population biology of the little gulper shark in Lebanese waters
Published on 04. October 2017 Population biology of the little gulper shark Centrophorus uyato in Lebanese waters M. Lteif, R. Mouawad, G. Khalaf, P. Lenfant, B. Seret, M. Verdoit-Jarraya ABSTRACT: A total of 38 individuals of the heavily exploited little gulper shark Centrophorus uyato were collected from Lebanese coastal waters using bottom longlines and trammel
Shark Finning and the Molecular Identification of Shark Species
Published on 26. September 2017 Shark Finning and the Molecular Identification of Shark Species: Review and Perspectives Amaral CRL, Silva DA, Amorim A, de Carvalho EF ABSTRACT: Worshipped and revered in several Indo-Pacific countries, and mostly feared among the western world, sharks are an old group of vertebrates dating back to the Devonian-Silurian boundary (~400Ma).
Movements of the white shark in the North Atlantic Ocean
Published on 29. September 2017 Movements of the white shark Carcharodon carcharias in the North Atlantic Ocean Skomal GB, Braun CD, Chisholm JH, Thorrold SR ABSTRACT: In the western North Atlantic, much of what is known about the movement ecology of the white shark Carcharodon carcharias is based on historical fisheries-dependent catch records, which portray
Feeding the world’s largest fish
Published 27 September 2017 Feeding the world’s largest fish: highly variable whale shark residency patterns at a provisioning site in the Philippines Jordan A. Thomson, Gonzalo Araujo, Jessica Labaja, Emer McCoy, Ryan Murray, Alessandro Ponzo ABSTRACT: Provisioning wildlife for tourism is a controversial yet widespread practice. We analysed the residency patterns of juvenile whale sharks
Tiger sharks can connect equatorial habitats and fisheries across the Atlantic Ocean basin
Published on 19. September 2017 Tiger sharks can connect equatorial habitats and fisheries across the Atlantic Ocean basin André S. Afonso, Ricardo Garla, Fábio H. V. Hazin ABSTRACT: Increasing our knowledge about the spatial ecology of apex predators and their interactions with diverse habitats and fisheries is necessary for understanding the trophic mechanisms that underlie
Sawfish records along the Eastern Amazon coast
Published on 05. September 2017 Sawfish (Pristidae) records along the Eastern Amazon coast Leonardo Manir Feitosa, Ana Paula Barbosa Martins, Jorge Luiz Silva Nunes ABSTRACT: Sawfishes are the most endangered cartilaginous fishes of the planet. Their external morphology facilitates entanglement in fishing nets and their K-selected life history hinders the recovery of exploited populations. The
A United States shark fin ban would undermine sustainable shark fisheries
Available online 8 September 2017 A United States shark fin ban would undermine sustainable shark fisheries D.S. Shiffman, R.E. Hueter ABSTRACT: A proposed nationwide ban on the sale of shark fins within the United States would undermine sustainable shark fisheries, would have little effect on global shark mortality, and would perpetuate the misconception that the
Origins of the Greenland shark
Published on 08. September 2017 Origins of the Greenland shark (Somniosus microcephalus): Impacts of ice-olation and introgression Ryan P. Walter, Denis Roy, Nigel E. Hussey, Björn Stelbrink, Kit M. Kovacs, Christian Lydersen, Bailey C. McMeans, Jörundur Svavarsson, Steven T. Kessel, Sebastián Biton Porsmoguer, Sharon Wildes, Cindy A. Tribuzio, Steven E. Campana, Stephen D. Petersen, R.