Scientific Papers

Whale Shark Tourism: Impacts on Coral Reefs in the Philippines

Whale Shark Tourism: Impacts on Coral Reefs in the Philippines

Whale Shark Tourism: Impacts on Coral Reefs in the Philippine C. W. Martin Wong, Inga Conti-Jerpe, Laurie J. Raymundo, Caroline Dingle, Gonzalo Araujo, Alessandro Ponzo, David M. Baker ABSTRACT: Reef-based tourism has been developing rapidly in recent decades yet its impacts on reef ecosystems are often overlooked. In Tan-awan, Oslob, Philippines, whale sharks are attracted

A new species of whaler shark from the Western Central Pacific

A new species of whaler shark from the Western Central Pacific

Published on 02. January 2019 Lost before found: A new species of whaler shark Carcharhinus obsolerus from the Western Central Pacific known only from historic records William T. White, Peter M. Kyne, Mark Harris ABSTRACT: Carcharhinus obsolerus is described based on three specimens from Borneo, Thailand and Vietnam in the Western Central Pacific. It belongs

Fatal shark attacks on divers in Australia, 1960-2017

Fatal shark attacks on divers in Australia, 1960-2017

Published in December 2018 Fatal shark attacks on divers in Australia, 1960-2017 J. Lippmann ABSTRACT: AIM: The aim of this study was to identify the number, location and characteristics associated with fatal shark attacks on divers in Australian waters from 1960 to 2017, inclusive. METHODS: Searches were made of the Divers Alert Network Asia-Pacific Diving

Decline of coastal apex shark populations over the past half century

Decline of coastal apex shark populations over the past half century

Published on 13 December 2018 Decline of coastal apex shark populations over the past half century George Roff, Christopher J. Brown, Mark A. Priest & Peter J. Mumby ABSTRACT: Overexploitation of large apex marine predators is widespread in the world’s oceans, yet the timing and extent of declines are poorly understood. Here we reconstruct a

A new microendemic species of the deep-water catshark genus Bythaelurus from the Indian Ocean

A new microendemic species of the deep-water catshark genus Bythaelurus from the Indian Ocean

Published on 12. December 2018 A new microendemic species of the deep-water catshark genus Bythaelurus (Carcharhiniformes, Pentanchidae) from the northwestern Indian Ocean, with investigations of its feeding ecology, generic review and identification key Simon Weigmann, Carina Julia Kaschner, Ralf Thiel ABSTRACT: A new deep-water catshark, Bythaelurus stewarti, is described based on 121 examined specimens caught

Description of a new deep-water dogfish shark from Hawaii

Description of a new deep-water dogfish shark from Hawaii

Published on 21. November 2018 Description of a new deep-water dogfish shark from Hawaii, with comments on the Squalus mitsukurii species complex in the West Pacific Toby S. Daly-Engel, Amber Koch, James M. Anderson, Charles F. Cotton, R. Dean Grubbs ABSTRACT: Dogfish sharks of the genus Squalus are small, deep-water sharks with a slow rate

Ethnotaxonomy of sharks from tropical waters of Brazil

Ethnotaxonomy of sharks from tropical waters of Brazil

Published on 21. November 2018 Ethnotaxonomy of sharks from tropical waters of Brazil Marcelo Moreira de Carvalho, Mônica Rocha de Oliveira, Priscila Fabiana Macedo Lopes, Jorge Eduardo Lins Oliveira ABSTRACT: Background Accessing folk knowledge from small-scale fishers is an affordable and reliable approach to understand the dynamic and diversity of shark species worldwide, especially of

Sharks, rays and marine protected areas

Sharks, rays and marine protected areas

Published on 12. November 2018 Sharks, rays and marine protected areas: A critical evaluation of current perspectives Tracy MacKeracher, Amy Diedrich, Colin A. Simpfendorfer ABSTRACT: Marine protected areas (MPAs) are increasingly advocated for the conservation and management of sharks and rays. However, substantial uncertainty remains regarding which species can benefit from MPAs. Meanwhile, area‐focused protection

Practical measures for sustainable shark fisheries

Practical measures for sustainable shark fisheries

Published on 02. November 2018 Practical measures for sustainable shark fisheries: Lessons learned from an Indonesian targeted shark fishery Irfan Yulianto ,Hollie Booth, Prayekti Ningtias, Tasrif Kartawijaya, Juan Santos, Sarmintohadi, Sonja Kleinertz, Stuart J. Campbell, Harry W. Palm, Cornelius Hammer ABSTRACT: Overfishing is a major threat to the survival of shark species, primarily driven by

A case study looking at tapeworm diversity among sharks

A case study looking at tapeworm diversity among sharks

Published on 26. October 2018 Host diet influences parasite diversity: a case study looking at tapeworm diversity among sharks Trent K. Rasmussen, Haseeb S. Randhawa ABSTRACT: In theory, animal diets may act as important filters for different parasite species. However, there is currently a lack of empirical research looking at host diet as a potential

Passive bristling of mako shark scales in reversing flows

Passive bristling of mako shark scales in reversing flows

Published on 24. October 2018 Passive bristling of mako shark scales in reversing flows Kevin T. Du Clos, Amy Lang, Sean Devey, Philip J. Motta, Maria Laura Habegger, Brad J. Gemmell ABSTRACT: Shark skin has been shown to reduce drag in turbulent boundary layer flows, but the flow control mechanisms by which it does so

Effects on abundance indices of sharks caught by pelagic longliners off southern Africa

Effects on abundance indices of sharks caught by pelagic longliners off southern Africa

Published on 24. October 2018 Effects of inconsistent reporting, regulation changes and market demand on abundance indices of sharks caught by pelagic longliners off southern Africa Gareth L. Jordaan​, Jorge Santos, Johan C. Groeneveld ABSTRACT: The assumption of a proportional relationship between catch-per-unit-effort (CPUE) and the abundance of sharks caught by pelagic longliners is tenuous

Mechanical behavior of shark vertebral centra at biologically relevant strains

Mechanical behavior of shark vertebral centra at biologically relevant strains

Published on 23. October 2018 Mechanical behavior of shark vertebral centra at biologically relevant strains D. I. Ingle, L. J. Natanson, M. E. Porter ABSTRACT: Cartilaginous shark skeletons experience axial deformation at the intervertebral joints, but also within the mineralized cartilaginous centrum, which can compress to between 3 – 8% of its original length in

Leveraging satellite technology to create true shark sanctuaries

Leveraging satellite technology to create true shark sanctuaries

Published on 09. October 2018 Leveraging satellite technology to create true shark sanctuaries Darcy Bradley, Juan Mayorga, Douglas J. McCauley, Reniel B. Cabral, Patric Douglas, Steven D. Gaines ABSTRACT: Shark sanctuaries are an ambitious attempt to protect huge areas of ocean space to curtail overfishing of sharks. If shark sanctuaries are to succeed, effective surveillance

Mitochondrial DNA haplotype diversity and origin of captive sand tiger sharks

Mitochondrial DNA haplotype diversity and origin of captive sand tiger sharks

Published on 31. July 2018 Mitochondrial DNA haplotype diversity and origin of captive sand tiger sharks (Carcharias taurus) Robert Wynne, Craig Wilding ABSTRACT: The sand tiger shark (Carcharias taurus) is listed as globally vulnerable with geographically confined and disrupted global populations with little or no gene flow between them. Captive breeding in aquaria of these