Publications

Rajella paucispinosa n. sp., a new deep-water skate from the western Indian Ocean off South Mozambique

Rajella paucispinosa n. sp., a new deep-water skate from the western Indian Ocean off South Mozambique

Published on 08. August 2014 Rajella paucispinosa n. sp., a new deep-water skate (Elasmobranchii, Rajidae) from the western Indian Ocean off South Mozambique, and a revised generic diagnosis Simon Weigmann, Matthias F.W. Stehmann, Ralf Thiel ABSTRACT: A new species of the widely in temperate and tropical latitudes distributed skate genus Rajella is described based on

Validated age estimates for large white sharks of the northeastern Pacific Ocean

Validated age estimates for large white sharks of the northeastern Pacific Ocean

Published on 08. August 2014 Validated age estimates for large white sharks of the northeastern Pacific Ocean: altered perceptions of vertebral growth shed light on complicated bomb Δ14C results Allen H. Andrews, Lisa A. Kerr ABSTRACT: Age validation studies of large shark species using bomb radiocarbon (14C) dating have revealed that the growth of vertebrae

A new metric for measuring condition in large predatory sharks

A new metric for measuring condition in large predatory sharks

Published online on 06. August 2014 A new metric for measuring condition in large predatory sharks D. J. Irschick, N. Hammerschlag ABSTRACT: A simple metric (span condition analysis; SCA) is presented for quantifying the condition of sharks based on four measurements of body girth relative to body length. Data on 104 live sharks from four

Visual Features of Mesopelagic Bioluminescent Sharks

Visual Features of Mesopelagic Bioluminescent Sharks

Published on 06. August 2014 Photon Hunting in the Twilight Zone: Visual Features of Mesopelagic Bioluminescent Sharks Julien M. Claes, Julian C. Partridge, Nathan S. Hart, Eduardo Garza-Gisholt, Hsuan-Ching Ho, Jérôme Mallefet, Shaun P. Collin ABSTRACT: The mesopelagic zone is a visual scene continuum in which organisms have developed various strategies to optimize photon capture.

Spot-tail sleeper-rays in the Singapore Straits

Spot-tail sleeper-rays in the Singapore Straits

Spot-tail sleeper-rays in the Singapore Straits Date of publication: 25 July 2014. Subjects: Spot-tail sleeper-ray, Narke dipterygia (Chondrichthyes: Narkidae). Subjects identified by: Contributors. Location, date and time: Singapore Straits near the Eastern Boarding Ground A (1°13’036”N 103°52’820”E); 22 May.2013; 1042-1052 hrs Singapore Biodiversity Records 2014: 199-200 PDF – DOWNLOAD  

White-spotted eagle ray at Tanah Merah

White-spotted eagle ray at Tanah Merah

White-spotted eagle ray at Tanah Merah Date of publication: 18 July 2014. Subject: White-spotted eagle ray, Aetobatus mula (Chondrichthyes: Batoidea: Myliobatidae). Subject identified by: Contributors. Location, date and time: Singapore Straits, east coast at Tanah Merah; 6 May 2011; 0630 hrs Singapore Biodiversity Records 2014: 189 PDF – DOWNLOAD    

What barcode sequencing reveals about the shark fishery in Peru

What barcode sequencing reveals about the shark fishery in Peru

Published online on 20. July 2014 What barcode sequencing reveals about the shark fishery in Peru Ximena Velez-Zuazo, Joanna Alfaro-Shigueto, Jeffrey Mangel, Riccardo Papa, Ingi Agnarsson ABSTRACT: Elasmobranchs are rapidly declining due to overfishing and bycatch, underlining the need for immediate protection. Critical baseline information on the diversity of targeted species is, however, often missing.

Preferential retention of fatty acid biomarkers in young-of-the-year Port Jackson shark

Preferential retention of fatty acid biomarkers in young-of-the-year Port Jackson shark

Published on 18. July 2014 From egg to hatchling: preferential retention of fatty acid biomarkers in young-of-the-year Port Jackson sharks Heterodontus portusjacksoni C. L. Beckmann, J. G. Mitchell, L. Seuront, D.A.J. Stone, C. Huveneers ABSTRACT: The muscle and liver fatty acid composition of young-of-the-year (YOY) Port Jackson sharks Heterodontus portusjacksoni were investigated to determine the

Dynamics of Whale Shark Occurrence at Their Fringe Oceanic Habitat

Dynamics of Whale Shark Occurrence at Their Fringe Oceanic Habitat

Published on 16. July 2014 Dynamics of Whale Shark Occurrence at Their Fringe Oceanic Habitat Pedro Afonso, Niall McGinty, Miguel Machete ABSTRACT: Studies have shown that the whale shark (Rhincodon typus), a vulnerable large filter feeder, seasonally aggregates at highly productive coastal sites and that individuals can perform large, trans-boundary migrations to reach these locations.

Validated age, growth and maturity of the bonnethead in the western North Atlantic Ocean

Validated age, growth and maturity of the bonnethead in the western North Atlantic Ocean

Published on 15. July 2014 Validated age, growth and maturity of the bonnethead Sphyrna tiburo in the western North Atlantic Ocean B. S. Frazier, W. B. Driggers III, D. H. Adams, C. M. Jones, J. K. Loefer ABSTRACT: The age, growth and maturity of bonnetheads Sphyrna tiburo inhabiting the estuarine and coastal waters of the

Structure and Dynamics of the Shark Assemblage off Recife, Northeastern Brazil

Structure and Dynamics of the Shark Assemblage off Recife, Northeastern Brazil

Published on 10. July 2014 Structure and Dynamics of the Shark Assemblage off Recife, Northeastern Brazil André S. Afonso, Humber A. Andrade, Fábio H. V. Hazin ABSTRACT: Understanding the ecological factors that regulate elasmobranch abundance in nearshore waters is essential to effectively manage coastal ecosystems and promote conservation. However, little is known about elasmobranch populations

Evidence from shark teeth for a brackish Arctic Ocean in the Eocene greenhouse

Evidence from shark teeth for a brackish Arctic Ocean in the Eocene greenhouse

Published online on 30. June 2014 Evidence from shark teeth for a brackish Arctic Ocean in the Eocene greenhouse Sora L. Kim, Jaelyn J. Eberle, David M. Bell, Dewayne A. Fox, Aspen Padilla ABSTRACT: Temperatures are rising at an unprecedented rate in the Arctic, and affecting the sensitive hydrological cycle with increased freshwater inputs to

Mortality due to a retained circle hook in a longfin mako shark

Mortality due to a retained circle hook in a longfin mako shark

Published online on 30. June 2014 Mortality due to a retained circle hook in a longfin mako shark Isurus paucus (Guitart-Manday) D H Adams, J D Borucinska, K Maillett, K Whitburn, T E Sander ABSTRACT: A female longfin mako shark Isurus paucus (Guitart-Manday, 1966) was found moribund on the Atlantic Ocean beach near Canaveral National

Occurrence of sub-adult tiger sharks in a small and very remote atoll lagoon

Occurrence of sub-adult tiger sharks in a small and very remote atoll lagoon

Published in June 2014 Occurrence of sub-adult tiger sharks (Galeocerdo cuvier) in a small and very remote atoll lagoon J. B. Juhel, L. Wantiez, D. Mouillot, S. Mailau, L. Vigliola ABSTRACT: ( This is an excerpt from the content ) Despite their large body size, wide distribution, apex predator role and near-threatened IUCN status, little

Effects of the Sharksafe barrier on white shark behavior and its implications for future conservation technologies

Effects of the Sharksafe barrier on white shark behavior and its implications for future conservation technologies

Published online on 26. June 2014 Effects of the Sharksafe barrier on white shark (Carcharodon carcharias) behavior and its implications for future conservation technologies Craig P. O’Connell, Sara Andreotti, Michael Rutzen, Michael Meÿer, Conrad A. Matthee, Pingguo He ABSTRACT: The white shark (Carcharodon carcharias) is an apex predator and is a protected species that suffers