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Urobatis pardalis, a new species of round stingray from the tropical Eastern Pacific
Nueva especie del género Urobatis (Myliobatiformes: Urotrygonidae) del Pacífico oriental tropical Luis Fernando Del Moral-Flores, Arturo Angulo, Myrna I. López, William A. Bussing ABSTRACT: A new species of Urobatis (Myliobatiformes: Urotrygonidae) from the tropical Eastern Pacific. A new species of round stingray, Urobatis pardalis sp. nov., is described from material collected in the Pacific coast
Estimating apparent survival of white sharks in central California using mark-recapture methods
Published on 01. April 2015 Estimating apparent survival of sub-adult and adult white sharks (Carcharodon carcharias) in central California using mark-recapture methods Paul E. Kanive, Jay J. Rotella, Salvador J. Jorgensen, Taylor K. Chapple, Scot D. Anderson, A. Peter Klimley, Barbara A. Block ABSTRACT: Quantifying life history parameters of marine top predators is challenging, as
White Sharks Exploit the Sun during Predatory Approaches
Published in April 2015 White Sharks Exploit the Sun during Predatory Approaches Charlie Huveneers, Dirk Holman, Rachel Robbins, Andrew Fox, John A. Endler, Alex H. Taylor ABSTRACT: There is no conclusive evidence of any nonhuman animal using the sun as part of its predation strategy. Here, we show that the world’s largest predatory fish—the white
Population and individual foraging patterns of two hammerhead sharks
Published online on 25. March 2015 Population and individual foraging patterns of two hammerhead sharks using carbon and nitrogen stable isotopes P. Loor-Andrade, F. Galván-Magaña, F. R. Elorriaga-Verplancken, C. Polo-Silva, A. Delgado-Huerta ABSTRACT: Rationale Individual foraging behavior is an important variable of predators commonly studied at the population level. Some hammerhead shark species play a
Scyliorhinus ugoi, a new species of catshark from Brazil
Published on 25. March 2015 Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) KARLA D. A. SOARES, OTTO F. B. GADIG & ULISSES L. GOMES ABSTRACT: A new species of catshark (Carcharhiniformes, Scyliorhinidae), Scyliorhinus ugoi sp. nov., is described from off Northeastern and Southeastern Brazil. The new species is closest to
South African Shark Biodiversity Management Plan
National Environmental Management: Biodiversity Act: South African Shark Biodiversity Management Plan No. 38607 GOVERNMENT GAZETTE, 25 MARCH 2015 PDF – DOWNLOAD
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
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
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
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
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
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
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
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
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