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A Re-Evaluation of the Size of the White Shark Population off California
Published on 16. June 2014 A Re-Evaluation of the Size of the White Shark (Carcharodon carcharias) Population off California, USA George H. Burgess, Barry D. Bruce, Gregor M. Cailliet, Kenneth J. Goldman, R. Dean Grubbs, Christopher G. Lowe, M. Aaron MacNeil, Henry F. Mollet, Kevin C. Weng, John B. O’Sullivan ABSTRACT: White sharks are highly
First case of synophthalmia and albinism in the Pacific angel shark
Published online on 12. June 2014 First case of synophthalmia and albinism in the Pacific angel shark Squatina californica O. Escobar-Sánchez, X. G. Moreno-Sánchez, C. A. Aguilar-Cruz, L. A. Abitia-Cárdenas ABSTRACT: The first record in Mexican waters of albinism and synophthalmia (partial cyclopia) in the Pacific angel shark, Squatina californica is presented. Albinism is not
Feeding ecology and trophic comparisons of six shark species in southern Brazil
Published online on 12. June 2014 Feeding ecology and trophic comparisons of six shark species in a coastal ecosystem off southern Brazil H. Bornatowski, R. R. Braga, V. Abilhoa, M. F. M. Corrêa ABSTRACT: The diets of six shark species, Sphyrna lewini, Sphyrna zygaena, Carcharhinus obscurus, Carcharhinus limbatus, Rhizoprionodon lalandii and Galeocerdo cuvier, were investigated
Parthenogenesis in a whitetip reef shark involves a reduction in ploidy
Published online on 06. June 2014 Parthenogenesis in a whitetip reef shark Triaenodon obesus involves a reduction in ploidy D. S. Portnoy, C. M. Hollenbeck, J. S. Johnston, H. M. Casman, J. R. Gold ABSTRACT: Genetic analysis of a female whitetip reef shark Triaenodon obesus and her stillborn pup, assumed to be of parthenogenetic origin,
Age and Growth of the Bull Shark in the Western North Atlantic Ocean
Published online on 13. May 2014 Age and Growth of the Bull Shark in the Western North Atlantic Ocean Lisa J. Natanson, Douglas H. Adams, Megan V. Winton, Jasmine R. Maurer ABSTRACT: Age and growth estimates for the Bull Shark Carcharhinus leucas were derived from 121 vertebral centra collected from Bull Sharks (59.1–223.5 cm FL) between
The effect of magnetically-treated baits and barriers on teleost and elasmobranch behavior
Published online on 07. June 2014 A large scale field analysis examining the effect of magnetically-treated baits and barriers on teleost and elasmobranch behavior C.P. O’Connell, P. He ABSTRACT: Recent studies have demonstrated that elasmobranchs (i.e. sharks, skates and rays) are sensitive and often deterred by electrosensory stimuli (e.g. permanent magnets and electropositive metals). These
First confirmed record of the white shark from Indonesia
Published online on 20. May 2014 First confirmed record of the white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Indonesia Fahmi and Dharmadi ABSTRACT: A six metre adult male of the white shark Carcharodon carcharias was caught by demersal longliners operating off Dompu, Indonesia. The specimen was landed and sold at Tanjung Luar landing site in
Increasing rate of species discovery in sharks coincides with sharp population declines
Published on 09. June 2014 Increasing rate of species discovery in sharks coincides with sharp population declines: implications for biodiversit Haseeb S. Randhawa, Robert Poulin, Martin Krkoše ABSTRACT: The global biodiversity of some taxonomic groups is poorly described, but thought to be decreasing rapidly. Surprisingly, this holds for a group of the world’s most iconic
Feeding and migration habits of white shark from Isla Guadalupe inferred by analysis of stable isotopes
Epub on 01. June 2014 Feeding and migration habits of white shark Carcharodon carcharias (Lamniformes: Lamnidae) from Isla Guadalupe inferred by analysis of stable isotopes δ15N and δ13C Mario Jaime-Rivera, Javier Caraveo-Patiño, Mauricio Hoyos-Padilla, Felipe Galván-Magaña ABSTRACT: Stable isotope composition of marine top predator’s tissues provides insight information of its trophic ecology and migratory behavior.
Endohelminth parasites of the leafscale gulper shark off Madeira Archipelago
Published in June 2014 Endohelminth parasites of the leafscale gulper shark, Centrophorus squamosus (Bonnaterre, 1788) (Squaliformes:Centrophoridae) off Madeira Archipelago Graça Costa, Tomás Chada, Egberto Melo-Moreira, Serena Cavallero, Stefano D’Amelio ABSTRACT: The endohelminth parasite fauna of a deep water shark, the leafscale gulper shark, Centrophorus squamosus, examined from Madeiran waters, from September 2009 to January 2010,
How robust are estimates of coral reef shark depletion?
Publishe online on 29. May 2014 How robust are estimates of coral reef shark depletion? Justin R. Rizzari, Ashley J. Frisch, Sean R. Connolly ABSTRACT: On coral reefs, diver-surveys of shark abundance indicate that populations are severely depleted, even in no-take zones with low-levels of illegal fishing, but are protected by strictly enforced no-entry zones.
Feeding Habits, Daily Ration, and Potential Predatory Impact of Spiny Dogfish in North Carolina
Published online on 27. May 2014 Feeding Habits, Daily Ration, and Potential Predatory Impact of Mature Female Spiny Dogfish in North Carolina Coastal Waters Charles W. Bangley, Roger A. Rulifson ABSTRACT: Though the feeding habits of Spiny Dogfish Squalus acanthias in the northwestern Atlantic Ocean have received much attention due to their potential interactions with
Occurrence of the narrowmouth catshark in southern Brazil
Published online on 19. May 2014 Occurrence of the narrowmouth catshark Schroederichthys bivius (Chondrichthyes: Scyliorhinidae) in southern Brazil Hugo Bornatowski, Lilyane Santos, Maurício De Castro Robert, Pedro Amadeus Weiser ABSTRACT: This paper reports the first record of the narrowmouth catshark Schroederichthys bivius from the coast of Paraná State, southern Brazil, increasing its distribution along the
Illegal trade of aquatic species in the Philippines detected by DNA barcoding
Published in May 2014 Illegal trade of regulated and protected aquatic species in the Philippines detected by DNA barcoding. Asis AM, Lacsamana JK, Santos MD ABSTRACT: Illegal trade has greatly affected marine fish stocks, decreasing fish populations worldwide. Despite having a number of aquatic species being regulated, illegal trade still persists through the transport of
Distribution and Dynamic Habitat Use of Young Bull Sharks in a Highly Stratified Northern Gulf of Mexico Estuary
Published on 19. May 2014 Distribution and Dynamic Habitat Use of Young Bull Sharks Carcharhinus leucas in a Highly Stratified Northern Gulf of Mexico Estuary J. Marcus Drymon, Matthew J. Ajemian, Sean P. Powers ABSTRACT: Understanding how animals alter habitat use in response to changing abiotic conditions is important for effective conservation management. For bull