Home » Archives
Conventional tagging of sharks in Western Australia
Conventional tagging of sharks in Western Australia: the main commercial species exhibit contrasting movement patterns Saia Bartes , Colin Simpfendorfer , Terence I. Walker, Carissa King, Neil Loneragan, Matías Braccini ABSTRACT: Understanding movement patterns underlies effective management and conservation measures. The current study summarises the main findings from a tagging program of Western Australian sharks
All we know about the crocodile shark Pseudocarcharias kamoharai
All we know about the crocodile shark (Pseudocarcharias kamoharai): Providing information to improve knowledge of this species Richard Kindong, Meng Xia, Njomoue Achille Pandong, Ousmane Sarr, Feng Wu, Siquan Tian, Xiaojie Dai ABSTRACT: Despite their global distribution across major oceans, biological and fisheries information related to the crocodile shark (Pseudocarcharias kamoharai) is still scarce. The
Potential factors influencing the condition of demersal sharks in the Mediterranean deep sea ecosystems
Potential factors influencing the condition of demersal sharks in the Mediterranean deep sea ecosystems Francesc Ordines, Maria Valls, María José Meléndez, Sergio Ramírez-Amaro, Eduardo López, Josep Lloret, Mariel Rodríguez, M. Teresa Farriols, Beatriz Guijarro, Cristina García-Ruiz, Enric Massutí ABSTRACT: The Alboran Sea and the Balearic Islands are two contrasting areas in terms of primary productivity.
Transfer DNA technique to identify species involved in shark bite incidents
Development and successful real-world use of a transfer DNA technique to identify species involved in shark bite incidents Derek Kraft PhD, Lauren Meyer PhD, Maryann Webb BS, Kaylee Scidmore-Rossing BS, Charlie Huveneers PhD, Eric Clua PhD, Carl Meyer PhD ABSTRACT: Identifying the species involved in shark bite incidents is an ongoing challenge but is important
Dynamic use of coastal areas by bull sharks
Dynamic use of coastal areas by bull sharks and the conciliation of conservation and management of negative human–wildlife interactions Johann Mourier, Marc Soria, Antonin Blaison, Monique Simier, Grégoire Certain, Angélique Demichelis, Tarek Hattab ABSTRACT: Knowledge about spatial and temporal variability in the distribution and abundance of predators is necessary to adapt measures to mitigate human–wildlife
Environmental preferences of sharks bycaught by the tuna purse-seine fishery
Environmental preferences of sharks bycaught by the tuna purse-seine fishery in the Eastern Pacific Ocean Eric Díaz-Delgado, Osman Crespo-Neto, Raúl O. Martínez-Rincón ABSTRACT: Sharks play important ecological roles in marine ecosystems. However, due to their life-history traits and low resilience, their vulnerability increases with overexploitation. The Eastern Pacific Ocean (EPO) purse-seine fishery catches several pelagic
A hitchhiker guide to manta rays
A hitchhiker guide to manta rays: Patterns of association between Mobula alfredi, M. birostris, their symbionts, and other fishes in the Maldives Aimee E. Nicholson-Jack, Joanna L. Harris, Kirsty Ballard, Katy M. E. Turner, Guy M. W. Stevens ABSTRACT: Despite being among the largest and most charismatic species in the marine environment, considerable gaps remain
Resource partitioning between fisheries and endangered sharks
Resource partitioning between fisheries and endangered sharks in a tropical marine food web Viviana Márquez-Velásquez, Andrés F Navia, Ricardo S Rosa, Paulo R Guimarães, Jr, Rafael L G Raimundo ABSTRACT: Fisheries can act as top predators and affect marine biodiversity and ecosystem functioning via their target species. We studied a coastal food web in the
Probable nursery habitat for critically endangered great hammerhead on the US Atlantic Coast
First identification of probable nursery habitat for critically endangered great hammerhead Sphyrna mokarran on the Atlantic Coast of the United States Catherine Macdonald, Jacob Jerome, Christian Pankow, Nicholas Perni, Kristina Black, David Shiffman, Julia Wester ABSTRACT: Great hammerheads (Sphyrna mokarran) have undergone significant global population declines and were assessed as Critically Endangered by the IUCN
Oceanic Diel Vertical Movement Patterns of Blue Sharks
Oceanic Diel Vertical Movement Patterns of Blue Sharks Vary With Water Temperature and Productivity to Change Vulnerability to Fishing Marisa Vedor, Gonzalo Mucientes, Sofia Hernández-Chan, Rui Rosa, Nick Humphries, David W. Sims, Nuno Queiroz ABSTRACT: In the pelagic environment diel vertical movements (DVM) are widespread across taxa, from zooplankton ascending from day-time depths into surface
Sharks on film: an analysis of how shark-human interactions are portrayed in films
Sharks on film: an analysis of how shark-human interactions are portrayed in films Brianna Le Busque, Carla Litchfield ABSTRACT: Sharks are often a focus of exaggerated news media coverage, with shark-human portrayals and the species typically involved in these interactions being discussed most frequently. This study advanced understanding of sharks in the media by analyzing
The Horizontal Movements of Whale Sharks in the Northern Arabian Sea
First Insights Into the Horizontal Movements of Whale Sharks (Rhincodon typus) in the Northern Arabian Sea Lucy M. Arrowsmith, Charan Kumar Paidi, Farukhkha Husenkha Bloch, Sajan John, Binod Chandra Choudhury, Rahul Kaul, Ana M. M. Sequeira, Charitha B. Pattiaratchi, Mark G. Meekan ABSTRACT: Whale sharks off the western coast of India have suffered high levels
Genetic diversity in two threatened species of guitarfish from the Brazilian and Argentinian coasts
Genetic diversity in two threatened species of guitarfish (Elasmobranchii: Rhinobatidae) from the Brazilian and Argentinian coasts: an alert for conservation Vanessa P. Cruz, Aisni M.C. L. Adachi, Pablo H. Oliveira Giovana, S. Ribeiro, Fabilene G. Paim, Bruno C. Souza, Alexandre S.F. Rodrigues, Marcelo Vianna, Sergio M. Delpiani, Juan Martín Díaz de Astarloa, Matheus M. Rotundo,
Social representations of sharks
Social representations of sharks, perceived communality, and attitudinal and behavioral tendencies towards their conservation: An exploratory sequential mixed approach João Neves, Jean-Christophe Giger, Nuno Piçarra, Vasco Alves, Joana Almeida ABSTRACT: Sharks are crucial to the marine ecosystem, but they are critically declining. Their bad public image explains, to some extent, the lesser concern for their
Movement of the bull shark in the upper Mississippi River Basin
Movement of the bull shark (Carcharhinus leucas) in the upper Mississippi River Basin, North America Ryan Shell, Nicholas Gardner ABSTRACT: Rare appearances of bull sharks (Carcharhinus leucas) in river systems and other freshwater ecosystems have been reported from five continents. The wide geographic range of this phenomenon, the physiological adaptations of this species to allow