Results 91 to 100 of about 17,250 (288)

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

Journal of Fish Biology, EarlyView.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira, Roberto E. Reis, Nelson F. Fontoura   +2 more
wiley   +1 more source

Age and growth of the Scalloped Hammerhead shark, Sphyrna lewini (Griffith and Smith, 1834), from the southern Brazilian coast Idade e crescimento do tubarão-martelo-entalhado, Sphyrna lewini (Griffith and Smith, 1834), da costa sul do Brasil

Brazilian Journal of Biology, 2011
Age and growth studies for the scalloped hammerhead shark, Sphyrna lewini (Griffith and Smith, 1834) caught along the southern Brazilian coast, were based on ring measurements of vertebrae sections of 115 males, 116 females and 14 unknown sexed sharks ...
JE. Kotas, V. Mastrochirico, M. Petrere Junior   +2 more
doaj   +1 more source

Exploring intraspecific life history patterns in sharks [PDF]

, 2006
Marine ecosystems compose the major source (85%) of world fisheries production (Garcia and Newton, 1997). Although only a few fish species tend to dominate fishery catches (Jennings et al., 2001), a large diversity of fishes representing varied ...
Cope, Jason M.
core  

Colonization of the deep sea by fishes [PDF]

, 2013
Peer ...
Froese, R, Priede, I G
core   +1 more source

Period of the day drives distinctions in the taxonomic and functional structures of reef fish assemblages

Journal of Fish Biology, EarlyView.
Abstract Circadian processes are key drivers of animal behaviour, influencing patterns of activity, resource partitioning and competition avoidance. Studies evaluating circadian changes on the structure of marine assemblages are lacking, especially for reef fish.
Marcos B. Lucena, Thiago C. Mendes, Cesar A. M. M. Cordeiro, Carlos E. L. Ferreira   +3 more
wiley   +1 more source

Biological Aspects of Juveniles of the Common Stingray, Dasyatis pastinaca (Linnaeus, 1758) (Elasmobranchii, Dasyatidae), from the Central Mediterranean Sea

Journal of Marine Science and Engineering, 2020
Data on the biology of Dasyatis pastinaca are absent from the Ionian Sea and only a few studies were conducted in the Mediterranean Sea. Some biological and ecological aspects of D.
Francesco Tiralongo, Giuseppina Messina, Bianca Maria Lombardo   +2 more
doaj   +1 more source

An Integrated Approach to Determining the Risk of Overexploitation for Data-Poor Pelagic Atlantic Sharks [PDF]

, 2008
Assesses the risk of over-exploitation of sharks in Atlantic longline fisheries using three metrics based on multivariate statistics as a way to make management recommendations for species with limited data.

core  

Community science datasets identify the spatial occurrence and hotspots of flapper skate (Dipturus intermedius)

Journal of Fish Biology, EarlyView.
Abstract The flapper skate, Dipturus intermedius (Parnell, 1837), is a large‐bodied, slow‐growing and late‐maturing, Critically Endangered elasmobranch with a constrained population distribution. Here, we use two longitudinal community science datasets to investigate the occurrence of flapper skates in Irish waters. The two datasets are as follows: the
Danielle L. Orrell, Ciara Wögerbauer, Shane O'Reilly, Thomas K. Doyle, William Roche   +4 more
wiley   +1 more source

Predictive habitat suitability models to aid conservation of elasmobranch diversity in the central Mediterranean Sea [PDF]

, 2015
Commercial fisheries have dramatically impacted elasmobranch populations worldwide. With high capture and bycatch rates, the abundance of many species is rapidly declining and around a quarter of the world’s sharks and rays are threatened with extinction.
A Dell’Apa, A Gouraguine, A Lomba, A Maldonado, AH Welsh, AJ Richardson, Antoine Guisan, B Gratwicke, B Planque, CD Maravelias, CD Maravelias, CS Martin, CW Speed, D Damalas, D Dunn, D Levi, E Hunter, E Massutí, F Ferretti, F Fiorentino, G Aarts, G Garofalo, G Garofalo, G Garofalo, G Tserpes, J Bertrand, J Elith, J Ellis, J Skjæraasen, JD Stevens, JM Potts, K Béranger, M Gristina, M McArthur, M Pardo, M Valls, MB Araújo, MG Pennino, MR Heithaus, N Dulvy, P Colantoni, P Cotton, P Dutilleul, P Petitgas, S Dueri, S Heinänen, S Jukic-Peladic, S Katsanevakis, S Ragonese, SC Barry, SJ Pittman, SJ Pittman, T Hopkins, T Martin, T Rangel, T Russo, V Lauria, V Lauria, VN De Jonge, Y Aldebert   +59 more
core   +2 more sources

Proteomic analysis of the zone of degeneration at the mitosis–meiosis transition stage in wild‐caught male catshark (Scyliorhinus canicula), correlated with an unusually high‐water temperature in the English Channel

Journal of Fish Biology, EarlyView.
Abstract In the context of current global change, variations in water temperature are one of the environmental conditions with serious consequences for marine life, including reproductive processes. In the small spotted catshark Scyliorhinus canicula, spermatogenesis occurs in spermatocysts composed of synchronously developing germ cells associated ...
Fabian Jeanne, Stanislas Pilet, Sean Heighton, Benoît Bernay, Pascal Sourdaine   +4 more
wiley   +1 more source