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Technical mitigation measures for sharks and rays in fisheries for tuna and tuna-like species
Published online on 21. December 2016 Technical mitigation measures for sharks and rays in fisheries for tuna and tuna-like species: turning possibility into reality François Poisson, Francisco Abascal Crespo, Jim R. Ellis, Pierre Chavance, Bach Pascal, Miguel. N. Santos, Bernard Séret, Maria Korta, Rui Coelho, Javier Ariz, Hilario Murua ABSTRACT: Tuna fisheries have been identified
Role of the preferred habitat availability for small shark on the interannual variation of abundance in a large Southwest Atlantic Coastal System
Published online on 09 December 2016 Role of the preferred habitat availability for small shark (Mustelus schmitti) on the interannual variation of abundance in a large Southwest Atlantic Coastal System (El Rincón, 39°–41°S) A.J. Jaureguizar, R. Wiff, M. Luz Clara ABSTRACT: Description of habitat preferences in marine fishes is important in order to understand their
First report of the whitesaddled catshark in Guatemala’s Caribbean Sea
Published on 09. December 2016 First report of the whitesaddled catshark Scyliorhinus hesperius (Springer 1966) in Guatemala’s Caribbean Sea Ana Hacohen-Domené, Francisco Polanco-Vásquez, Rachel T. Graham ABSTRACT: Background The present study represents the first record of Scyliorhinus hesperius in Guatemala’s Caribbean Sea. Methods Five male whitesaddled catsharks, S. hesperius, were captured in 200 m deep
Dietary Keratan Sulfate from Shark Cartilage Modulates Gut Microbiota
Published on 08. December 2016 Dietary Keratan Sulfate from Shark Cartilage Modulates Gut Microbiota and Increases the Abundance of Lactobacillus spp. Qingsen Shang, Qinying Li, Meifang Zhang, Guanrui Song, Jingjing Shi, Hao Jiang, Chao Cai, Jiejie Hao, Guoyun Li, Guangli Yu ABSTRACT: Keratan sulfate (KS) represents an important family of glycosaminoglycans that are critical in
Molecular diversity and distribution of eastern Atlantic and Mediterranean dogfishes highlight taxonomic issues in the genus
Published on 02. December 2016 Molecular diversity and distribution of eastern Atlantic and Mediterranean dogfishes Squalus highlight taxonomic issues in the genus Ana Veríssimo, Diana Zaera-Perez, Rob Leslie, Samuel P. Iglésias, Bernard Séret, Panagiotis Grigoriou, Aspasia Sterioti, Chrysoula Gubili, Claudio Barría, Clinton Duffy, Sebastián Hernández, Ioannis E. Batjakas, Andrew M. Griffiths ABSTRACT: The alpha taxonomy
NZ: DOC finalises shark cage diving permits
Media Release DOC Department of Conservation 23. December 2016 — — — — — — — — — — — — DOC has reissued temporary permits for shark cage diving operators off Rakiura/Stewart Island. DOC’s Southern South Island Operations Director Allan Munn says DOC wasn’t in a position to grant the new applications before the
MDMR officials oppose proposed changes to NOAA shark regulations
Published on 22 Dec, 2016 at 17:19 in Conservation & Fishery, Fishery Management | Viewed times | No Comments
Media Release Mississippi Department of Marine Resources 21. December 2016 — — — — — — — BILOXI, Miss. – The Mississippi Department of Marine Resources is opposed to proposals by NOAA Fisheries that would increase shark regulations for recreational and commercial fishermen. NOAA is proposing that recreational and commercial fishermen be required to complete
AUS: Drones provide shark surveillance along NSW coastline
Published on 22 Dec, 2016 at 2:21 in Attacks & Incidents | Viewed times | No Comments
Media Release Niall Blair Minister for Primary Industries Minister for Lands and Water 19. December 2016 — — — — — — — — — — NSW Minister for Primary Industries Niall Blair today announced that drones have taken to the skies, as further shark surveillance gets underway for the school holidays. Mr Blair said
Feeding ecology of silky sharks associated with floating objects
Published online on 14. December 2016 Feeding ecology of silky sharks Carcharhinus falciformis associated with floating objects in the western Indian Ocean Filmalter, J. D., Cowley, P. D., Potier, M., Ménard, F., Smale, M. J., Cherel, Y. and Dagorn, L. ABSTRACT: The silky shark Carcharhinus falciformis is commonly associated with floating objects, including fish aggregating
Sharks shift their spine into high gear
Published online on 14. December 2016 Biomaterials: Sharks shift their spine into high gear Matthew A. Kolmann, Adam P. Summers ABSTRACT: It emerges that a dogfish shark’s spine becomes stiffer as the fish swims faster, enabling the animal to swim efficiently at different speeds. The finding could also provide inspiration for the design of robotic
Do White Shark Bites on Surfers Reflect Their Attack Strategies on Pinnipeds?
Do White Shark Bites on Surfers Reflect Their Attack Strategies on Pinnipeds? Erich Ritter and Alexandra Quester ABSTRACT: The theory of mistaken identity states that sharks, especially white sharks, Carcharodon carcharias, mistake surfers for pinnipeds when looking at them from below and thus bite them erroneously. Photographs of surfer wounds and board damage were interpreted
Predicting occurrence of juvenile shark habitat to improve conservation planning
Published on 30. November 2016 Predicting occurrence of juvenile shark habitat to improve conservation planning Beverly Z.L. Oh, Ana M.M. Sequeira, Mark G. Meekan, Jonathan L.W. Ruppert, Jessica J. Meeuwig ABSTRACT: Fishing and habitat degradation have increased the extinction risk of sharks, and conservation strategies recognize that survival of juveniles is critical for the effective
Dental ontogeny of a white shark embryo
Published on 27. November 2016 Dental ontogeny of a white shark embryo Taketeru Tomita, Kei Miyamoto, Akira Kawaguchi, Minoru Toda, Shin-Ichiro Oka, Ryo Nozu, Keiichi Sato ABSTRACT: Unlike most viviparous vertebrates, lamniform sharks develop functional teeth during early gestation. This feature is considered to be related to their unique reproductive mode where the embryo grows
Cutting blade dentitions in squaliform sharks form by modification of inherited alternate tooth ordering patterns
Published on 30. November 2016 Cutting blade dentitions in squaliform sharks form by modification of inherited alternate tooth ordering patterns Charlie Underwood, Zerina Johanson, Moya Meredith Smith ABSTRACT: The squaliform sharks represent one of the most speciose shark clades. Many adult squaliforms have blade-like teeth, either on both jaws or restricted to the lower jaw,
Using unmanned aerial vehicles to investigate shark and ray densities in a shallow coral lagoon
Published on 24. November 2016 Using unmanned aerial vehicles (UAVs) to investigate shark and ray densities in a shallow coral lagoon Jeremy J. Kiszka, Johann Mourier, Kirk Gastrich, Michael R. Heithaus ABSTRACT: Unmanned aerial vehicles (UAVs) are being increasingly used in studies of marine fauna. Here, we tested the use of a UAV (DJI Phantom