Results 71 to 80 of about 16,877 (294)

Post‐Release Survival of the Pelagic Stingray (Pteroplatytrygon violacea, Bonaparte, 1832) in French Longline Fisheries in the Northwestern Mediterranean Sea

Fisheries Management and Ecology, EarlyView.
ABSTRACT Bycatch remains a critical challenge in global fisheries, even when using selective gears such as longlines. In the French longline fishery targeting Atlantic bluefin tuna (Thunnus thynnus) in the Gulf of Lion, the common pelagic stingray (Pteroplatytrygon violacea) is the primary bycatch species.
Antoine Landreau, Vincent Kerzérho, Olivier Derridj, Bertrand Wendling, Nolwenn Cosnard, Tristan Rouyer   +5 more
wiley   +1 more source

Identification of a synaptic vesicle-specific membrane protein with a wide distribution in neuronal and neurosecretory tissue. [PDF]

, 1981
Two different monoclonal antibodies, characterized initially as binding synaptic terminal regions of rat brain, bind a 65,000-dalton protein, which is exposed on the outer surface of brain synaptic vesicles. Immunocytochemical experiments at the electron
Matthew, WD, Reichardt, LF, Tsavaler, L
core   +2 more sources

Evolution and ecology of feeding in elasmobranchs [PDF]

Integrative and Comparative Biology, 2007
Paleozoic chondrichthyans had a large gape, numerous spike-like teeth, limited cranial kinesis, and a non-suspensory hyoid, suggesting a feeding mechanism dominated by bite and ram. Modern sharks are characterized by a mobile upper jaw braced by a suspensory hyoid arch that is highly kinetic.
Cheryl D, Wilga, Philip J, Motta, Christopher P, Sanford   +2 more
openaire   +2 more sources

Giants in the cold: Morphological evidence for vascular heat retention in the viscera but not the skeletal muscle of the basking shark (Cetorhinus maximus)

Journal of Fish Biology, EarlyView.
Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker, Axel Schlindwein, Martin C. Arostegui, Ingrid M. Bruvold, Joel V. Wernström, Montserrat Martin‐Armas, David W. Sims, Nicolas Straube, Andreas Altenburger, Claudia Junge   +9 more
wiley   +1 more source

21st century fisheries management: a spatio-temporally explicit tariff-based approach combining multiple drivers and incentivising responsible fishing [PDF]

, 2012
Kraak, S. B. M., Reid, D. G., Gerritsen, H. D., Kelly, C. J., Fitzpatrick, M., Codling, E. A., and Rogan, E. 2012. 21st century fisheries management: a spatio-temporally explicit tariff-based approach combining multiple drivers and incentivising ...
Codling, Edward A, Fitzpatrick, Mike, Gerritsen, Hans D, Kelly, Ciarán J, Kraak, Sarah BM, Reid, Dave G, Rogan, Emer   +6 more
core   +1 more source

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

Journal of Fish Biology, EarlyView.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert, Cristina Rodríguez‐Cabello, Francisco E. Montero, Maite Carrassón, Inmaculada Frutos, Ana Pérez‐del‐Olmo   +5 more
wiley   +1 more source

Specific setup and methodology for computer-assisted sperm analysis (CASA) in evaluating elasmobranch sperm

Theriogenology Wild
1. One-third of elasmobranch species are threatened with extinction, and the precise assessment of their sperm parameters and quality is one stage in the development of reproductive technology for animal conservation. 2. Computer-Assisted Sperm Analysis (
Pedro Nacib Jorge-Neto, Fabio de Moraes Francisco, Mario Davi Dias Carneiro, Sergio Ricardo Brito Santos, Letícia Alecho Requena, Sofia Dressel Ramos, Matheus Felix de Goés, Rafael Franco Valle, Fabiana Lucia André Padilha, Helen Colbachini, Rafael Caprioli Gutierrez, Larissa Schneider Brandão Souza, Verônica Takatsuka Manoel, Laura Chrispim Reisfeld, Thyara Deco-Souza, Roberta Ferreira Leite, Cristiane Schilbach Pizzutto   +16 more
doaj   +1 more source

Analysis of permanent magnets as elasmobranch bycatch reduction devices in hook-and-line and longline trials [PDF]

, 2011
Previous studies indicate that elasmobranch fishes (sharks, skates and rays) detect the Earth’s geomagnetic field by indirect magnetoreception through electromagnetic induction, using their ampullae of Lorenzini. Applying this concept, we evaluated the
Abel, Daniel C., O'Connell, Craig P., Rice, Patrick H., Stroud, Eric M.   +3 more
core  

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

Journal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres, Rodrigo Silvestre Martins, Luciano Gomes Fischer, Luís Gustavo Cardoso, Rodrigo Sant'Ana, Bruno Mourato   +5 more
wiley   +1 more source

Fishing profile and commercial landings of shark and batoids in a global elasmobranchs conservation hotspot [PDF]

Anais da Academia Brasileira de Ciências
This paper describes the fishing profile and the temporal variation in the commercial landings of elasmobranchs in a global hotspot for their conservation and investigates the variables that influenced the landings. Census data on commercial catches were
ÍTALO LUTZ, PAULO EMÍLIO SANTOS, RODRIGO CAMPOS, CLAUDIA ANTÔNIA C.R. DE OLIVEIRA, NATASCHA WOSNICK, GRAZIELLE EVANGELISTA-GOMES, MIGUEL PETRERE JR, BIANCA BENTES   +7 more
doaj   +1 more source