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Social networks in elasmobranchs and teleost fishes
Published online on 13. June 2013 Social networks in elasmobranchs and teleost fishes Wilson, A. D. M., Croft, D. P. and Krause, J. ABSTRACT: Over the last decade, there has been an exponential increase in studies using social network analysis to describe the structure of animal societies. In this synthesis, we examine the contribution of
Heavy metal levels in blacktip sharks caught in Mexico
Published in June 2013 Concentración de Hg, Pb, Cd, Cr y As en hígado de Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) capturado en Veracruz, México Mendoza-Díaz, Fernando et al. ABSTRACT: Concentration of Hg, Pb, Cd, Cr and As in liver Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) captured in Veracruz, Mexico. Pollution by heavy metals in marine ecosystems in the
Patterns of top-down control in a seagrass ecosystem
Published on 03. June 2013 Patterns of top-down control in a seagrass ecosystem: could a roving apex predator induce a behaviour-mediated trophic cascade? Derek A. Burkholder, Michael R. Heithaus, James W. Fourqurean, Aaron Wirsing, Lawrence M. Dill ABSTRACT: Summary The loss of large-bodied herbivores and/or top predators has been associated with large-scale changes in ecosystems
Global economic value of shark ecotourism
Published online on 31. May 2013 Global economic value of shark ecotourism: implications for conservation Andrés M. Cisneros-Montemayor, Michele Barnes-Mauthe, Dalal Al-Abdulrazzak, Estrella Navarro-Holm and U. Rashid Sumaila ABSTRACT: Amid declining shark populations because of overfishing, a burgeoning shark watching industry, already well established in some locations, generates benefits from shark protection. We compile reported
New deep-water catshark from the northern New Zealand waters
Published online on 14. May 2013 Apristurus garricki sp. nov., a new deep-water catshark from the northern New Zealand waters (Carcharhiniformes: Scyliorhinidae) Keiichi Sato, Andrew L. Stewart & Kazuhiro Nakaya ABSTRACT: A new deep-water catshark, Apristurus garricki sp. nov., is described from northern New Zealand waters. This species is a member of the longicephalus-group and
Fishery Catch Characteristics and Population Assessment of the Mako Shark
Published on 19. May 2013 Research Article Commercial Fishery Catch Characteristics and Population Assessment of the Shortfin Mako Shark (Isurus oxyrinchus) in the Western North Atlantic Ocean Juan C. Levesque ABSTRACT: Pelagic sharks, an oceanic group of sharks, are an incidental bycatch in many global pelagic longline commercial fisheries, including the U.S commercial longline fishery
Trends in sightings and environmental influences on manta rays and whale sharks
Published on 22. May 2013 Trends in sightings and environmental influences on a coastal aggregation of manta rays and whale sharks C. A. Rohner, S. J. Pierce, A. D. Marshall, S. J. Weeks, M. B. Bennett, A. J. Richardson ABSTRACT: Sightings of planktivorous elasmobranchs at their coastal aggregation sites are often linked to biological, environmental
Effects of scale and habitat distribution on the movement of the southern stingray
Published on 22. May 2013 Effects of scale and habitat distribution on the movement of the southern stingray Dasyatis americana on a Caribbean atoll Alexander Tilley, Juliana López-Angarita, John R. Turner ABSTRACT: The structure of animal movement paths at varying spatial scales allows insight into the importance of habitat distribution and their response to scale
Resource partitioning and trophic structure of large-bodied marine predators
Published online on 07. May 2013 Apparent resource partitioning and trophic structure of large-bodied marine predators in a relatively pristine seagrass ecosystem Heithaus MR, Vaudo JJ, Kreicker S, Layman CA et al. ABSTRACT: Large predators often play important roles in structuring marine communities. To understand the role that these predators play in ecosystems, it is
The artisanal shark fishery in northern Madagascar
Published online on 09. May 2013 A first description of the artisanal shark fishery in northern Madagascar: implications for management L Robinson and WHH Sauer ABSTRACT: In the past two decades, small, targeted artisanal shark fisheries have developed in the extreme north of Madagascar, largely in response to the shark fin trade. Few studies have
Stock status of the silky shark in the eastern Pacific Ocean
PowerPoint Presentation Alexandre Aires-da-Silva, Cleridy Lennert-Cody and Mark Maunder 4. Meeting of the IATTC Scientific Advisory Meeting La Jolla, USA, 29 April – 3 May 2013 PDF – DOWNLOAD
U.S. Actions to Achieve Shark Conservation
PowerPoint Presentation A Backdrop to Recent CITES Action Laura Cimo NOAA Fisheries Office of International Affairs ELI Seminar May 2, 2013 PDF – DOWNLOAD
Progress and Opportunities in Global Shark Conservation
PowerPoint Presentation Elizabeth Wilson, Manager, Global Shark Conservation The Pew Charitable Trusts PDF – DOWNLOAD
Dietary partitioning by five stingray species on coral reefs
Published online on 24. April 2013 Dietary partitioning by five sympatric species of stingray (Dasyatidae) on coral reefs O. R. O’Shea, M. Thums, M. van Keulen, R. M. Kempster, M. G. Meekan ABSTRACT: Dietary characteristics and the degree of dietary partitioning by five species of sympatric stingray were assessed using stomach content and sediment analyses
Effects of an Electric Field on White Sharks
Published on 02. May 2013 Effects of an Electric Field on White Sharks: In Situ Testing of an Electric Deterrent Charlie Huveneers, Paul J. Rogers, Jayson M. Semmens, Crystal Beckmann, Alison A. Kock, Brad Page, Simon D. Goldsworthy ABSTRACT: Elasmobranchs can detect minute electromagnetic fields, <1 nVcm–1, using their ampullae of Lorenzini. Behavioural responses to