Scientific Papers

Postrelease survival, movements and thermal habitats of pelagic sharks

Postrelease survival, movements and thermal habitats of pelagic sharks

Postrelease survival, vertical and horizontal movements, and thermal habitats of five species of pelagic sharks in the central Pacific Ocean Musyl et al. ABSTRACT: From 2001 to 2006, 71 pop-up satellite archival tags (PSATs) were deployed on five species of pelagic shark (blue shark ; shortfin mako ; silky shark ; oceanic

A migration mechanism for transfer of sharks from ethanol to aqueous glycerol solutions

A migration mechanism for transfer of sharks from ethanol to aqueous glycerol solutions

Published in September 2011 MacLeod, I.D., and van Dam A.J. ABSTRACT: This paper presents a scoping study on the impregnation of glycerol into formaldehyde-fixed and aqueous-ethanol-preserved sharks. The weight increase and solution density changes were monitored in sequential baths of aqueous glycerol. Positive results included a return of the colour of the specimens, improved flexibility,

Annual fecundity assessment for the Rio Skate Rioraja agassizi

Annual fecundity assessment for the Rio Skate Rioraja agassizi

Note Oddone, M. C. and Capapé, C. 2011 Annual fecundity assessment for the Rio Skate Rioraja agassizi (Chondrichthyes: Arhynchobatidae) endemic to a neotropical area (southeastern Brazil). Brazilian Journal of Oceanography, 59(3):277-279, 2011 PDF – Download    

Extinction of sharks in the Archipelago of Saint Paul’s Rocks

Extinction of sharks in the Archipelago of Saint Paul’s Rocks

Published online on 8 September 2011 Extinction of a shark population in the Archipelago of Saint Paul’s Rocks (equatorial Atlantic) inferred from the historical record Osmar J. Luiz and Alasdair J. Edwards ABSTRACT: Detecting and determining the validity of local extinctions is an important conservation measure in order to uncover management failures. There are quantitative

Population Growth Rates of Reef Sharks

Population Growth Rates of Reef Sharks

Published on 23. September 2011 Population Growth Rates of Reef Sharks with and without Fishing on the Great Barrier Reef: Robust Estimation with Multiple Models Mizue Hisano, Sean R. Connolly, William D. Robbins ABSTRACT: Overfishing of sharks is a global concern, with increasing numbers of species threatened by overfishing. For many sharks, both catch rates

Inspired by Sharks: A Biomimetic Skeleton

Inspired by Sharks: A Biomimetic Skeleton

      Publication date: 2011-07-01 Inspired by Sharks: A Biomimetic Skeleton for the Flapping, Propulsive Tail of an Aquatic Robot John H. Long, Jr., Tom Koob, Justin Schaefer, Adam Summers, Kurt Bantilan, Sindre Grotmol, Marianne Porter. ABSTRACT: The vertebral column is the primary stiffening element of the body of fish. This serially jointed axial

Dogfish Squalamine as a broad-spectrum systemic antiviral agent

Dogfish Squalamine as a broad-spectrum systemic antiviral agent

Published online before print on September 19, 2011 Squalamine as a broad-spectrum systemic antiviral agent with therapeutic potential Michael Zasloff et al. ABSTRACT: Antiviral compounds that increase the resistance of host tissues represent an attractive class of therapeutic. Here, we show that squalamine, a compound previously isolated from the tissues of the dogfish shark (Squalus

Branchial osmoregulation in the euryhaline bull shark

Branchial osmoregulation in the euryhaline bull shark

Published on 01 September 2011 Branchial osmoregulation in the euryhaline bull shark, Carcharhinus leucas: a molecular analysis of ion transporters Beau D. Reilly, Rebecca L. Cramp, Jonathan M. Wilson, Hamish A. Campbell and Craig E. Franklin. ABSTRACT: Bull sharks, Carcharhinus leucas, are one of only a few species of elasmobranchs that live in both marine

New species of spurdog shark Squalus formosus

New species of spurdog shark Squalus formosus

Article first published online: 26 AUG 2011 Squalus formosus, a new species of spurdog shark (Squaliformes: Squalidae), from the western North Pacific Ocean W. T. White, S. P. Iglésias ABSTRACT : A new species of spurdog, Squalus formosus n. sp., from the lower continental shelf and upper continental slope off the coast of Taiwan and

New Species of Gollum Shark from the Philippines

New Species of Gollum Shark from the Philippines

Published on 24. August 2011 Gollum suluensis sp. nov. (Carcharhiniformes: Pseudotriakidae), a new gollumshark from the southern Philippines Peter R. Last and Joe P. Gaudiano ABSTRACT: A second nominal species of the pseudotriakid genus Gollum, otherwise known as false catsharks or gollumsharks, is described on the basis of seven specimens collected from the Sulu Sea.

Diving behavior of the giant devil ray in the Mediterranean Sea

Diving behavior of the giant devil ray in the Mediterranean Sea

Published online on 11. August 2011 Simonepietro Canese, Andrea Cardinali, Teresa Romeo, Michela Giusti, Eva Salvati, Michela Angiolillo, Silvestro Greco ABSTRACT: The giant devil ray Mobula mobular is the only mobulid species regularly present in the Mediterranean Sea. The spatial ecology and biology of this species are poorly known, and given its high bycatch mortality,

Analyses of Catch Data for Oceanic Whitetip and Silky Sharks in Hawaii

Analyses of Catch Data for Oceanic Whitetip and Silky Sharks in Hawaii

Analyses of Catch Data for Oceanic Whitetip and Silky Sharks reported by Fishery Observers in the Hawaii-based Longline Fishery in 1995–2010 William A. Walsh and Shelley C. Clarke. ABSTRACT: This report presents descriptive statistical summaries and generalized linear model (GLM) analyses of catch data for oceanic whitetip shark Carcharhinus longimanus and silky shark C. falciformis

An Indicator-based Analysis of Key Shark Species based on Data Held by SPC-OFP

An Indicator-based Analysis of Key Shark Species based on Data Held by SPC-OFP

Shelley Clarke, Shelton Harley, Simon Hoyle and Joel Rice. ABSTRACT: Longline and purse seine logsheet and observer datasets held by SPC-OFP were examined to assess the stock status of eight WCPFC key shark species. Both longline and purse seine logsheet datasets suffer from missing shark catch records and a lack of species-specific recording, therefore the

Decoding fingerprints in two morphologically similar sharks

Decoding fingerprints in two morphologically similar sharks

Published on July 28, 2011. Decoding fingerprints: elemental composition of vertebrae correlates to age-related habitat use in two morphologically similar sharks Bree J. Tillett, Mark G. Meekan, David Parry, Niels Munksgaard, Iain C. Field, Dean Thorburn, Corey J. A. Bradshaw ABSTRACT: We compare vertebral microchemistry with previously described age-related movement patterns of bull sharks Carcharhinus

Dietary metal and macro-nutrient intakes of juvenile lemon sharks

Dietary metal and macro-nutrient intakes of juvenile lemon sharks

Published on July 18, 2011. Dietary metal and macro-nutrient intakes of juvenile lemon sharks determined from the nutritional composition of prey items. Harri Pettitt-Wade, Steven P. Newman, Kristene T. Parsons, Samuel H. Gruber, Richard D. Handy. ABSTRACT: The trace element requirements of sharks are poorly understood and the dietary intake of metals from prey items