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Bythaelurus bachi n. sp., a new deep-water catshark from the southwestern Indian Ocean
Published on 20. December 2016 Bythaelurus bachi n. sp., a new deep-water catshark (Carcharhiniformes, Scyliorhinidae) from the southwestern Indian Ocean, with a review of Bythaelurus species and a key to their identification Weigmann, S., Ebert, D.A., Clerkin, P.J., Stehmann, M.F.W. & Naylor, G.J.P. ABSTRACT: A new deep-water catshark, Bythaelurus bachi, is described based on 44
Sharks in the jungle: real and imagined sea monsters of the Maya
Published online on 21. November 2016 Sharks in the jungle: real and imagined sea monsters of the Maya Sarah E. Newman ABSTRACT: Representations and remains of sharks are found in Mesoamerican art and archaeology from the first millennium BC onwards. They appear at coastal sites, but also remarkably far inland, hundreds of kilometres from the
Characterization and Trends of a Land-Based Recreational Shark Fishery
Published online on 10. November 2016 Was Everything Bigger in Texas? Characterization and Trends of a Land-Based Recreational Shark Fishery Matthew J. Ajemian, Philip D. Jose, John T. Froeschke, Mark L. Wildhaber, Gregory W. Stunz ABSTRACT: Although current assessments of shark population trends involve both fishery-independent and fishery-dependent data, the latter are generally limited to
Virtual reconstruction of the skeletal labyrinth of two lamnid sharks
Published on 22. November 2016 Virtual reconstruction of the skeletal labyrinth of two lamnid sharks (Elasmobranchii, Lamniformes) L. Schnetz, J. Kriwet, C. Pfaff ABSTRACT: The first virtual reconstruction of the skeletal labyrinth of the porbeagle shark Lamna nasus and the shortfin mako shark Isurus oxyrinchus is presented here using high-resolution micro-computed tomography. The results, in
Population characteristics of a large whale shark aggregation inferred from seawater environmental DNA
Published online on 21. November 2016 Population characteristics of a large whale shark aggregation inferred from seawater environmental DNA Eva Egelyng Sigsgaard, Ida Broman Nielsen, Steffen Sanvig Bach, Eline D. Lorenzen, David Philip Robinson, Steen Wilhelm Knudsen, Mikkel Winther Pedersen, Mohammed Al Jaidah, Ludovic Orlando, Eske Willerslev, Peter Rask Møller, Philip Francis Thomsen ABSTRACT: Population
The ecological connectivity of whale shark aggregations in the Indian Ocean
Published on 16. November 2016 The ecological connectivity of whale shark aggregations in the Indian Ocean: a photo-identification approach Samantha Andrzejaczek, Jessica Meeuwig, David Rowat, Simon Pierce, Tim Davies, Rebecca Fisher, Mark Meekan ABSTRACT: Genetic and modelling studies suggest that seasonal aggregations of whale sharks (Rhincodon typus) at coastal sites in the tropics may be
Shark finning in eastern Indonesia
Published online on 11. November 2016 Shark finning in eastern Indonesia: assessing the sustainability of a data-poor fishery Vanessa F. Jaiteh, Adrian R. Hordyk, Matías Braccini, Carol Warren, Neil R. Loneragan ABSTRACT: For over two decades, Indonesia has reported higher average shark landings than any other nation, but very little local information exists on the
A new deepwater legskate from the southeastern Indian Ocean on Broken Ridge
Published on 10. November 2016 A new deepwater legskate, Sinobatis kotlyari n. sp. (Rajiformes, Anacanthobatidae) from the southeastern Indian Ocean on Broken Ridge Matthias F.W. Stehmann, Simon Weigmann ABSTRACT: Sinobatis kotlyari n. sp. is described, based on the nearly adult 331 mm TL holotype male from 1400 m depth in the southeastern Indian Ocean at
Review of the bamboo shark genus Hemiscyllium
Published on 02. November 2016 Review of the bamboo shark genus Hemiscyllium (Orectolobiformes: Hemiscyllidae) Allen, Gerald R.; Erdmann, Mark V.; White, William T.; Fahmi; Dudgeon, Christine L. ABSTRACT: The bamboo sharks, genus Hemiscyllium, comprises a group of nine species mainly restricted to New Guinea and northern Australia, including islands, reefs, and shoals separated from mainland
Bycatch of chondrichthyans in a coastal trawl fishery on Chubut province coast
Published online on 28. October 2016 Bycatch of chondrichthyans in a coastal trawl fishery on Chubut province coast and adjacent waters, Argentina J. Ruibal Núñez, N. D. Bovcon, P. D. Cochia, M. E. Góngora ABSTRACT: Chondrichthyans are usually caught incidentally in fisheries for species of high commercial value and then discarded on board or landed
Analysis of vertebral chemistry to assess stock structure in a deep-sea shark
First published online on 27. October 2016 Analysis of vertebral chemistry to assess stock structure in a deep-sea shark, Etmopterus spinax Matthew N. McMillan, Christopher Izzo, Claudia Junge, Ole Thomas Albert, Armelle Jung, Bronwyn M. Gillanders ABSTRACT: Deep-sea sharks play a valuable ecological role helping maintain food web balance, yet they are vulnerable to commercial
Relations between morphology, buoyancy and energetics of requiem sharks
Published on 26. October 2016 Relations between morphology, buoyancy and energetics of requiem sharks Gil Iosilevskii, Yannis P. Papastamatiou ABSTRACT: Sharks have a distinctive shape that remained practically unchanged through hundreds of millions of years of evolution. Nonetheless, there are variations of this shape that vary between and within species. We attempt to explain these
Whale Shark Seasonal Occurrence, Abundance and Demographic Structure in the Mid-Equatorial Atlantic Ocean
Published online on 26. October 2016 Whale Shark (Rhincodon typus) Seasonal Occurrence, Abundance and Demographic Structure in the Mid-Equatorial Atlantic Ocean Bruno C. L. Macena, Fábio H. V. Hazin ABSTRACT: Whale sharks are generally associated with environmental factors that drive their movements to specific locations where food availability is high. Consequently, foraging is believed to
Visual resolution and contrast sensitivity in two benthic sharks
Published online on 24. October 2016 Visual resolution and contrast sensitivity in two benthic sharks Laura A. Ryan, Nathan S. Hart, Shaun P. Collin, Jan M. Hemmi ABSTRACT: Sharks have long been described as having ‘poor’ vision. They are cone monochromats and anatomical estimates suggest they have low spatial resolution. However, there are no direct
A novel field method to distinguish between Australian blacktip shark and common blacktip shark
Published on 24. October 2016 A novel field method to distinguish between cryptic carcharhinid sharks, Australian blacktip shark Carcharhinus tilstoni and common blacktip shark C. limbatus, despite the presence of hybrids G. J. Johnson, R. C. Buckworth, H. Lee1, J. A. T. Morgan, J. R. Ovenden, C. R. McMahon ABSTRACT: Multivariate and machine-learning methods were