Scientific Papers

Coastal breeding aggregations of threatened stingrays and guitarfish in the Levant

Coastal breeding aggregations of threatened stingrays and guitarfish in the Levant

Coastal breeding aggregations of threatened stingrays and guitarfish in the Levant Shahar Chaikin, Jonathan Belmaker, Adi Barash ABSTRACT: 1. Stingrays and guitarfish are globally threatened by overexploitation, particularly so in the Mediterranean Sea. Nevertheless, very little information is known about their ecology, behaviour, and taxonomy in the Mediterranean, and especially in the Levant, where water

Non‐lethal assessment of reproductive stage for female blue sharks

Non‐lethal assessment of reproductive stage for female blue sharks

Non‐lethal assessment of reproductive stage for female blue sharks Prionace glauca using sex steroid hormones Y. Fujinami, Y. Semba ABSTRACT: We analysed plasma concentrations of progesterone (P4) and 17β‐oestradiol (E2) in juvenile, pre‐ovulatory, early, mid‐, or late‐pregnancy stages of female blue sharks Prionace glauca. Concentrations of P4 were significantly higher in pregnant than in non‐pregnant

Trends in Chondrichthyan Research

Trends in Chondrichthyan Research

Trends in Chondrichthyan Research: An Analysis of Three Decades of Conference Abstracts D. S. Shiffman, M. J. Ajemian, J. C. Carrier, T. S. Daly-Engel, M. M. Davis, N. K. Dulvy, R. D. Grubbs, N. A. Hinojosa, J. Imhoff, M. A. Kolmann, C. S. Nash, E. W. M. Paig-Tran, E. E. Peele, R. A. Skubel, B.

Mercury (Hg) and selenium (Se) content in the shark Mustelus henlei

Mercury (Hg) and selenium (Se) content in the shark Mustelus henlei

Mercury (Hg) and selenium (Se) content in the shark Mustelus henlei (Triakidae) in the northern Mexican Pacific Sergio Alonzo Medina-Morales, David Corro-Espinosa, Ofelia Escobar-Sánchez, Carolina Guadalupe Delgado-Alvarez, Jorge Ruelas-Inzunza, Martin Gabriel Frías-Espericueta, Martin Enrique Jara-Marini, Federico Páez-Osuna ABSTRACT: Mercury and selenium were assessed in Mustelus henlei, which is a carnivorous predatory shark that is important

A New Onchoproteocephalidean Cestode Species from the Spot-Tail Shark

A New Onchoproteocephalidean Cestode Species from the Spot-Tail Shark

A New Onchoproteocephalidean Cestode Species from the Spot-Tail Shark, Carcharhinus sorrah (Müller et Henle), in the Persian Gulf Masoumi Ganjgah, N., Haseli, M. ABSTRACT: Introduction Members of the onchoproteocephalidean genus Phoreiobothrium Linton, 1889 infect carcharhinid and sphyrnid sharks. Although the Persian Gulf harbors a rich fauna of sharks, the taxonomic diversity of Phoreiobothrium in this

Distribution and abundance of elasmobranchs and large teleost fishes in a subtropical seagrass ecosystem

Distribution and abundance of elasmobranchs and large teleost fishes in a subtropical seagrass ecosystem

Distribution and abundance of elasmobranchs and large teleost fishes in a subtropical seagrass ecosystem: community structure along environmental and spatial gradients Peterson, C.T., Grubbs, R.D. ABSTRACT: We used fishery-independent gillnet and longline surveys to document the elasmobranch and large teleost assemblages in the Florida Big Bend seagrass system and examine how ichthyofaunal assemblages were related

Shark movements in the Revillagigedo Archipelago

Shark movements in the Revillagigedo Archipelago

Shark movements in the Revillagigedo Archipelago and connectivity with the Eastern Tropical Pacific Frida Lara-Lizardi, Mauricio Hoyos-Padilla, Alex Hearn, A. Peter Klimley, Felipe Galván-Magaña, Randall Arauz, Sandra Bessudo, Eleazar Castro, Eric Clua, Eduardo Espinoza, Chris Fischer, César Peñaherrera-Palma,Todd Steiner, James T. Ketchum ABSTRACT: Long-distance movements of sharks within and between islands pose substantial challenges for

Mercury contamination in the recently described Brazilian white-tail dogfish

Mercury contamination in the recently described Brazilian white-tail dogfish

Mercury contamination in the recently described Brazilian white-tail dogfish Squalus albicaudus (Squalidae, Chondrichthyes) Rachel Ann Hauser-Davis, Camila Ferreira Pereira, Fernando Pinto, João Paulo M. Torres, Olaf Malm, Marcelo Vianna ABSTRACT: The recently described Squalus albicaudus is a mesopredator shark and, as such, exposed to mercury biomagnification processes. Therefore, this study aimed to assess total Hg

Capture‐induced exertional rhabdomyolysis in the Shortfin Mako Shark

Capture‐induced exertional rhabdomyolysis in the Shortfin Mako Shark

Capture‐induced exertional rhabdomyolysis in the Shortfin Mako Shark, Isurus oxyrinchus Nicholas M. Otway ABSTRACT: Background Shortfin Mako sharks (Isurus oxyrinchus) are top‐order predators in oceanic food chains. They are captured worldwide by commercial and recreational fisheries, but little is known about the effects that fishing has on the homeostasis and longevity of these animals. Objective

DNA barcode reveals the illegal trade of rays in Brazil

DNA barcode reveals the illegal trade of rays in Brazil

DNA barcode reveals the illegal trade of rays commercialized in fishmongers in Brazil Raul B. Camacho-Oliveira, Cahique M. Daneluz, Fernanda D. do Prado, Ricardo Utsunomia, Carlos E. Rodrigues Jr., Fausto Foresti, Fábio Porto-Foresti ABSTRACT: Sequences of the mitochondrial gene COI (DNA Barcode) were used to identify species of rays and skates commercialized in fishmongers in

Evolutionary relationships among bullhead sharks

Evolutionary relationships among bullhead sharks

Evolutionary relationships among bullhead sharks (Chondrichthyes, Heterodontiformes) Tiffany S. Slater, Kate Ashbrook, Jürgen Kriwet ABSTRACT: The evolution of modern sharks, skates and rays (Elasmobranchii) is largely enigmatic due to their possession of a labile cartilaginous skeleton; consequently, taxonomic assignment often depends on isolated teeth. Bullhead sharks (Heterodontiformes) are a group of basal neoselachians, thus their

Bone‐strengthening effects and safety of compound peptides from skin of Chiloscyllium plagiosum and Mustelus griseus

Bone‐strengthening effects and safety of compound peptides from skin of Chiloscyllium plagiosum and Mustelus griseus

Bone‐strengthening effects and safety of compound peptides from skin of Chiloscyllium plagiosum and Mustelus griseus Xin‐Heng Xu, Peng‐Fei Lv, Tong‐Xin Wang, Bao‐Xuan Wang, Yan Shi, Bi‐Xue Wang, Zheng‐Rou Meng, Qing‐Xi Chen, Jiang‐Xing Zhuang, Yule‐Yue Wang Ph.D ABSTRACT: Fish processing produces a lot of by‐products highly containing large amount of proteins which mainly consist of collagen,

Shark fin trade bans and sustainable shark fisheries

Shark fin trade bans and sustainable shark fisheries

Shark fin trade bans and sustainable shark fisheries Francesco Ferretti, David M. P. Jacoby, Mariah O. Pfleger, Timothy D. White, Felix Dent, Fiorenza Micheli, Andrew A. Rosenberg, Larry B. Crowder, Barbara A. Block ABSTRACT: The U.S. Congress is currently discussing the Shark Fin Sales Elimination Act to eliminate shark fin trade at the federal level.

Elasmobranch species richness, fisheries, abundance and size composition in the Azores archipelago

Elasmobranch species richness, fisheries, abundance and size composition in the Azores archipelago

Elasmobranch species richness, fisheries, abundance and size composition in the Azores archipelago (NE Atlantic) Régis Santos, Ana Novoa-Pabon, Hélder Silva, Mário Pinho ABSTRACT: Elasmobranchs are a vulnerable resource, more susceptible to overfishing than most teleosts, and their assessment is complicated due to a general lack of information about their fisheries, biology and ecology. This study

Pliocene colonization of the Mediterranean by Great White Shark

Pliocene colonization of the Mediterranean by Great White Shark

Pliocene colonization of the Mediterranean by Great White Shark inferred from fossil records, historical jaws, phylogeographic and divergence time analyses Agostino Leone, Gregory N. Puncher, Francesco Ferretti, Emilio Sperone, Sandro Tripepi, Primo Micarelli, Andrea Gambarelli, Maurizio Sarà, Marco Arculeo, Giuliano Doria, Fulvio Garibaldi, Nicola Bressi, Andrea Dall’Asta, Daniela Minelli, Elisabetta Cilli, Stefano Vanni, Fabrizio Serena,