Publications

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Whale sharks target dense prey patches of sergestid shrimp off Tanzania

Whale sharks target dense prey patches of sergestid shrimp off Tanzania

Published online on 17. March 2015 Whale sharks target dense prey patches of sergestid shrimp off Tanzania Christoph A. Rohner, Amelia J. Armstrong, Simon J. Pierce, Clare E. M. Prebble, E. Fernando Cagua, Jesse E. M. Cochran, Michael L. Berumen, Anthony J. Richardson ABSTRACT: Large planktivores require high-density prey patches to make feeding energetically viable.

Composition of Glycosaminoglycans in Elasmobranchs including Several Deep-Sea Sharks

Composition of Glycosaminoglycans in Elasmobranchs including Several Deep-Sea Sharks

Published on 24. March 2015 Composition of Glycosaminoglycans in Elasmobranchs including Several Deep-Sea Sharks: Identification of Chondroitin/Dermatan Sulfate from the Dried Fins of Isurus oxyrinchus and Prionace glauca Kyohei Higashi, Yoshiki Takeuchi, Ann Mukuno, Hideyuki Tomitori, Masaki Miya, Robert J. Linhardt, Toshihiko Toida ABSTRACT: Shark fin, used as a food, is a rich source of

Shifting elasmobranch community assemblage at Cocos Island

Shifting elasmobranch community assemblage at Cocos Island

Published online on 23. March 2015 Shifting elasmobranch community assemblage at Cocos Island – an isolated marine protected area Easton R. White, Mark C. Myers, Joanna Mills Flemming, Julia K. Baum ABSTRACT: Fishing pressure has increased the extinction risk of many elasmobranch (shark and ray) species. Although many countries have established no-take marine reserves, a

Intraguild predation and partial consumption of blue sharks by Cape fur seals

Intraguild predation and partial consumption of blue sharks by Cape fur seals

Published online on 16. March 2015 Intraguild predation and partial consumption of blue sharks Prionace glauca by Cape fur seals Arctocephalus pusillus pusillus C. Fallows, H.P. Benoît, N. Hammerschlag ABSTRACT: The top-down effects of predators on ecosystem structure and dynamics have been studied increasingly. However, the nature and consequence of trophic interactions between upper-trophic-level predators

First record of the electric ray Narcine leoparda in Ecuadorian waters

First record of the electric ray Narcine leoparda in Ecuadorian waters

Published online on 17. March 2015 First record of the electric ray Narcine leoparda (Batoidea: Torpediniforms: Narcinidae) in Ecuadorian waters A.F. Romero-Caicedo, J. Pincay-Espinoza, J. Palma-Chávez, M. Carrera-Fernández ABSTRACT: Six electric rays, Narcine leoparda, were caught off the coast of Manta, Ecuador between August 2013 and January 2014. These specimens represent the first record in

Tetronarce cowleyi, a new species of electric ray from southern Africa

Tetronarce cowleyi, a new species of electric ray from southern Africa

Published on 19. March 2015 Tetronarce cowleyi, sp. nov., a new species of electric ray from southern Africa (Chondrichthyes: Torpediniformes: Torpedinidae) David A. Ebert, Diane L. Haas, Marcelo R. de Carvalho ABSTRACT: A new species of torpedo ray, Tetronarce cowleyi, sp. nov., is described from specimens collected from the southeastern Atlantic Ocean. The new species

Strongly directional and differential swimming behavior of an adult female white shark from Guadalupe Island

Strongly directional and differential swimming behavior of an adult female white shark from Guadalupe Island

Published in March 2015 Strongly directional and differential swimming behavior of an adult female white shark, Carcharodon carcharias (Chondrichthyes: Lamnidae) from Guadalupe Island, Mexico. Ramón Bonfil, Shannon O΄Brien ABSTRACT: We report on an adult female white shark tracked for 288 days and 7,100 km in the NE Pacific Ocean. The shark, tagged with a real-time

Partial albinism in an embryo of the blacktip shark from the eastern Pacific

Partial albinism in an embryo of the blacktip shark from the eastern Pacific

Published in March 2015 Partial albinism in an embryo of the blacktip shark, Carcharhinus limbatus (Carcharhinidae: Chondrichthyes) from the eastern Pacific Francisco Sancho-Vazquez, Luis Fernando Del Moral-Flores, Oscar Uriel Mendoza-Vargas ABSTRACT: A record of a male blacktip shark embryo, Carcharhinus limbatus, showing partial albinism is reported. The specimen was caught off the Mexican coastal waters

The effect of biogeographic and phylogeographic barriers on gene flow in the brown smoothhound shark

The effect of biogeographic and phylogeographic barriers on gene flow in the brown smoothhound shark

Published online on 17. March 2015 The effect of biogeographic and phylogeographic barriers on gene flow in the brown smoothhound shark, Mustelus henlei, in the northeastern Pacific Chris L. Chabot, Mario Espinoza, Ismael Mascareñas-Osorio, Axayácatl Rocha-Olivares ABSTRACT: We assessed the effects of the prominent biogeographic (Point Conception and the Peninsula of Baja California) and phylogeographic

Genetic Diversity of White Sharks in the Northwest Atlantic and Southern Africa

Genetic Diversity of White Sharks in the Northwest Atlantic and Southern Africa

Published online on 10. March 2015 Genetic Diversity of White Sharks, Carcharodon carcharias, in the Northwest Atlantic and Southern Africa Shannon J. O’Leary, Kevin A. Feldheim, Andrew T. Fields, Lisa J. Natanson, Sabine Wintner, Nigel Hussey, Mahmood S. Shivji, Demian D. Chapman ABSTRACT: The white shark, Carcharodon carcharias, is both one of the largest apex

Basking sharks and oceanographic fronts: quantifying associations in the north-east Atlantic

Basking sharks and oceanographic fronts: quantifying associations in the north-east Atlantic

Published online on 07. March 2015 Basking sharks and oceanographic fronts: quantifying associations in the north-east Atlantic Peter I. Miller, Kylie L. Scales, Simon N. Ingram, Emily J. Southall, David W. Sims ABSTRACT: Summary Understanding the mechanisms that link oceanographic processes and marine vertebrate space use is critical to our knowledge of marine ecosystem functioning,

Pilot study on behaviour of sharks around Saba using acoustic telemetry

Pilot study on behaviour of sharks around Saba using acoustic telemetry

Pilot study on behaviour of sharks around Saba using acoustic telemetry – Progress report 2014 H.V. Winter, D. Vink, I.J.M. van Beek IMARES Report number C026/15 Publication date: 13-2-2015 PDF – DOWNLOAD  

Using pop-up satellite archival tags to inform selectivity in fisheries stock assessment models

Using pop-up satellite archival tags to inform selectivity in fisheries stock assessment models

Published online on 05. March 2015 Using pop-up satellite archival tags to inform selectivity in fisheries stock assessment models: a case study for the blue shark in the South Atlantic Ocean Felipe Carvalho, Robert Ahrens, Debra Murie, Keith Bigelow, Alexandre Aires-Da-Silva, Mark N. Maunder, Fábio Hazin ABSTRACT: Selectivity has traditionally been well estimated internally in

Atelomycterus erdmanni, a new species of catshark from Indonesia

Atelomycterus erdmanni, a new species of catshark from Indonesia

Published on 01. March 2015 Atelomycterus erdmanni, a new species of catshark (Scyliorhinidae: Carcharhiniformes) from Indonesia Fahmi and William T. White ABSTRACT: A new species of catshark of the genus Atelomycterus is described from eastern Indonesia based on two type specimens. Atelomycterus erdmanni is closely related to A. baliensis and A. marmoratus, being sympatric with

Conservation challenges of sharks with continental scale migrations

Conservation challenges of sharks with continental scale migrations

Published on 24. February 2015 Conservation challenges of sharks with continental scale migrations Michelle R. Heupel, Colin A. Simpfendorfer, Mario Espinoza, Amy F. Smoothey, Andrew Tobin, Victor Peddemors ABSTRACT: Understanding movement and connectivity of populations is increasingly important as human and climate change pressures become more pervasive, but can be problematic in difficult to observe

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