Scientific Papers

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Migration Pathways, Behavioural Thermoregulation and Overwintering Grounds of Blue Sharks in the Northwest Atlantic

Migration Pathways, Behavioural Thermoregulation and Overwintering Grounds of Blue Sharks in  the Northwest Atlantic

Published on 23. February 2011. Campana SE, Dorey A, Fowler M, Joyce W, Wang Z, et al. ABSTRACT: The blue shark Prionace glauca is the most abundant large pelagic shark in the Atlantic Ocean. Although recaptures of tagged sharks have shown that the species is highly migratory, migration pathways towards the overwintering grounds remain poorly

From monsoons to mantas: seasonal distribution of Manta alfredi in the Maldives

From monsoons to mantas: seasonal distribution of Manta  alfredi in the Maldives

Published on 10. February 2011. ANDERSON, R. C., ADAM, M. S. and GOES, J. I. ABSTRACT: The Republic of Maldives in the central Indian Ocean is home to large numbers of manta rays, Manta alfredi. They are known to undertake seasonal migrations within the Maldives, but these movements have not been well documented. The aims

Squatina caillieti new species of angel shark Philippine Islands

Squatina caillieti new species of angel shark Philippine Islands

Published on 07. February 2011. Jonathan H. Walsh, David A. Ebert, Leonard J.V. Compagno. ABSTRACT: A new species of angel shark, Squatina caillieti sp. nov., is described from a single specimen collected in deepwater off Luzon in the Philippines. The new species is closest to S. formosa and S. nebulosa, but differs from its congeners

Seasonal and Long-Term Changes in Relative Abundance of Bull Sharks from a Tourist Shark Feeding Site in Fiji

Seasonal and Long-Term Changes in Relative Abundance of Bull Sharks from a Tourist  Shark Feeding Site in Fiji

Published on 27. January 2011. Juerg M. Brunnschweiler, Harald Baensch. ABSTRACT: Shark tourism has become increasingly popular, but remains controversial because of major concerns originating from the need of tour operators to use bait or chum to reliably attract sharks. We used direct underwater sampling to document changes in bull shark Carcharhinus leucas relative abundance

Range extension of the Endangered great hammerhead shark Sphyrna mokarran in the Northwest Atlantic: preliminary data and significance for conservation

Range extension of the Endangered great hammerhead shark Sphyrna mokarran in the Northwest Atlantic: preliminary data and significance for conservation

Published on 27. January 2011 Neil Hammerschlag, Austin J. Gallagher, Dominique M. Lazarre, Curt Slonim. ABSTRACT: We provide pilot data from a satellite-tracked great hammerhead shark Sphyrna mokarran in the Atlantic, representing the first such data on this species in the literature. The 250 cm shark was tagged off the coast of the middle-Florida Keys

Etmopterus joungi new species of lanternshark (Squaliformes: Etmopteridae) from Taiwan

Etmopterus joungi new species of lanternshark (Squaliformes: Etmopteridae) from Taiwan

Published on 26. January 2011 James D. S. Knuckey, David A. Ebert and George H. Burgess. ABSTRACT: A new species of deepwater lanternshark, Etmopterus joungi n. sp., is described from the deep waters off north-eastern Taiwan. The new species is similar to other species of the “Etmopterus pusillus group” in having concave, flattened dermal denticles

The 2009 Sydney shark attacks: case series and literature review

The 2009 Sydney shark attacks: case series and literature review

Published online: 20 JAN 2011 Michael Alexander Rtshiladze, Sean Peter Andersen, Dai Quoc Anh Nguyen, Anthony Grabs, Kevin Ho. ABSTRACT: Background: There were 59 unprovoked shark attacks worldwide in 2008. Twelve of these occurred in Australia, ranking it as second only to the USA. In February 2009, two attacks occurred within 72 h in Sydney, Australia.

Size at maturity and reproductive traits of shortfin mako, Isurus oxyrinchus, in the western and central North Pacific

Size at maturity and reproductive traits of shortfin mako, Isurus oxyrinchus, in the western and central North Pacific

Published: 18 January 2011 Yasuko Semba , Ichiro Aoki and Kotaro Yokawa . ABSTRACT: Shortfin mako, Isurus oxyrinchus, is a highly migratory shark with a worldwide distribution. Despite recent global concern and intensive ecological studies on this species, little is known about its reproduction, owing to a paucity of information on mature females. We investigated

Partitioning of food resources by four abundant, co-occurring elasmobranch species: relationships between diet and both body size and season

Partitioning of food resources by four abundant, co-occurring elasmobranch species: relationships between diet and both body size and season

Published: 18 January 2011 E. Sommerville , M. E. Platell , W. T. White , A. A. Jones and I. C. Potter ABSTRACT: The present study has tested statistically the hypothesis that the diets of four abundant and co-occurring elasmobranch species differ and change with body size and season and has determined the extent of

Resurrection of the name Carcharhinus cerdale, a species different from Carcharhinus porosus

Resurrection of the name Carcharhinus cerdale, a species different from Carcharhinus porosus

Published on 15. January 2011 José I. Castro ABSTRACT: The smalltail shark, Carcharhinus porosus Ranzani, 1840, is a small shark that inhabits the western North Atlantic Ocean from the Gulf of Mexico to Brazil. Carcharhinus cerdale Gilbert, in Jordan and Evermann, 1898, is a small shark that inhabits the eastern Pacific from the Gulf of

Cephaloscyllium stevensi: a new species of swellshark (Carcharhiniformes: Scyliorhinidae) from Papua New Guinea

Cephaloscyllium stevensi: a new species of swellshark (Carcharhiniformes: Scyliorhinidae) from Papua New Guinea

Published on 15. January 2011 Eugenie Clark and John E. Randall ABSTRACT: Cephaloscyllium stevensi n. sp., is described from five adult specimens (445-660 mm TL) taken in a Nautilus trap set in 240-274 m off eastern Papua New Guinea. It is distinguished from its similar congener, C. speccum Last, Séret & White, from off north-western

Reproductive biology of the scalloped hammerhead shark Sphyrna lewini (Chondrichthyes: Sphyrnidae) off south-west Mexico

Reproductive biology of the scalloped hammerhead shark Sphyrna lewini (Chondrichthyes: Sphyrnidae) off south-west Mexico

Published on 15 January 2011 Marcela Bejarano-Álvarez, Felipe Galván-Magaña and Rosa Isabel Ochoa-Báez ABSTRACT: The scalloped hammerhead shark Sphyrna lewini is the most important species in the artisanal shark fishery in the Gulf of Tehuantepec, Mexico. Knowledge about the reproductive biology of this species in the area is nonexistent, despite its being listed worldwide as

A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species

A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species

Published: 12. January 2011 Yukio Iwatsuki,  Kei Miyamoto, Kazuhiro Nakaya, Jie Zhang. ABSTRACT: The genus Platyrhina from the northwestern Pacific was reviewed, including a redescription and neotype proposal for Platyrhina sinensis (Bloch and Schneider 1801), and the description of two new species. Platyrhina limboonkengi Tang 1933 is relegated to the synonymy of P. sinensis, both

Shark predation and tooth wear in a population of northeastern Pacific killer whales

Shark predation and tooth wear in a population of northeastern Pacific killer whales

Online publication date: January 06, 2011 Ford JKB, Ellis GM, Matkin CO, Wetklo MH, Barrett-Lennard LG, Withler RE ABSTRACT: The cosmopolitan killer whale Orcinus orca feeds on a wide variety of prey types over its global range, but in at least some regions, genetically distinct and ecologically specialised lineages of killer whales coexist sympatrically. In

Electrosensory pore distribution and feeding in the megamouth shark Megachasma pelagios (Lamniformes: Megachasmidae)

Electrosensory pore distribution and feeding in the megamouth shark Megachasma pelagios (Lamniformes: Megachasmidae)

Note Online publication date: January 06, 2011 Kempster RM, Collin SP ABSTRACT: The megamouth shark Megachasma pelagios is a rare, large filter-feeding shark. Little to nothing is known of its sensory biology, particularly in relation to its feeding behaviour. We describe the abundance and distribution of ampullary pores over the head and propose that both

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