Results 1 to 10 of about 257 (158)
New record of Frilled shark Chlamydoselachus anguineus Garman, 1884 (Chondrichthyes: Hexanchiformes) in the South Pacific Ocean [PDF]
PeerJFrilled sharks are rarely observed and limited information is available regarding their life history. The global number of records for these sharks does not exceed 40, with most sightings reported in the Western Pacific Ocean.
Maria J. Indurain +4 more
doaj +3 more sources
The biology and ecology of the Pacific sharpnose shark Rhizoprionodon longurio [PDF]
Ecology and Evolution, 2023 Amidst global declines in elasmobranch populations resulting predominantly from overfishing, the need to gather data regarding shark ecology is greater than ever.
Joel H. Gayford, Darren A. Whitehead
doaj +2 more sources
Quantifying the behavioural consequences of shark ecotourism [PDF]
Scientific Reports, 2023 Shark populations globally are facing catastrophic declines. Ecotourism has been posited as a potential solution to many of the issues facing shark conservation, yet increasingly studies suggest that such activity may negatively influence aspects of ...
Joel H. Gayford +3 more
doaj +2 more sources
Scientia Marina, 2020 The aim of this study was to assess the suitability of different vertebrae staining techniques for the visualization and counting of growth bands in tropical species of batoids (Narcine leoparda, Urotrygon aspidura, Hypanus longus, Potamotrygon ...
José G. Pérez-Rojas +4 more
doaj +1 more source
Morphological and molecular evidence of the Antarctic sleeper shark Somniosus antarcticus (Somniosidae) in northern Chile [PDF]
PeerJSleeper sharks (family Somniosidae) are large, slow-growing deep-sea sharks that are rarely documented in the southeastern Pacific, and records from the Chilean waters have remained taxonomically uncertain.
Angel Mancilla +4 more
doaj +2 more sources
Tiburon: A Weighted Tree Automata Toolkit [PDF]
, 2006 The availability of weighted finite-state string automata toolkits made possible great advances in natural language processing. However, recent advances in syntax-based NLP model design are unsuitable for these toolkits. To combat this problem, we introduce a weighted finite-state tree automata toolkit, which incorporates recent developments in ...
Jonathan May, Kevin Knight
openaire +1 more source
Fishing effects on elasmobranchs from the Pacific Coast of Colombia
Universitas Scientiarum, 2016 During 1995, 2001, 2003, 2004 and 2007; we studied the temporal variation in the structure of the elasmobranch assemblage along the Colombian Pacific coast using: the community index of diversity, heterogeneity, equitability, species composition, average
Andrés Felipe Navia +1 more
doaj +1 more source
Revista Iberoamericana de Bioeconomía y Cambio Climàtico, 2021 El presente trabajo se centro en evaluar la composición de la captura, la diversidad de especies, abundancia relativa y estructura de tallas de tiburones y rayas capturados por la pesca artesanal en las playas de Poneloya y Las Peñitas. Se analizaron los
G. M. Hernandez-Fernandez +3 more
doaj +1 more source
Latin American Journal of Aquatic Research, 2014 Se registra la presencia del tiburón mako Isurus oxyrinchus, capturado por pescadores artesanales con palangre tiburonero frente a la costa de La Media Guajira. Constituye el primer registro de I.
Paola Palacios-Barreto +3 more
doaj +1 more source
Ontología política de la pesca en el caribe colombiano en el marco del estudio de los tiburones
Revista Investigium IRE, 2015 El artículo hace referencia al tema de la Antropología de las poblaciones costeras, tratado en el marco de la Décima Reunión de Antropologías del Mercosur.
Jorge Sánchez Maldonado
doaj +1 more source