Results 31 to 40 of about 787 (184)

Family Carcharhinidae [PDF]

open access: gold
Jörg Freyhof   +3 more
openalex   +2 more sources

DNA barcoding reveals the diversity of sharks in Guyana coastal markets

open access: yesNeotropical Ichthyology, 2017
A fundamental challenge for both sustainable fisheries and biodiversity protection in the Neotropics is the accurate determination of species identity. The biodiversity of the coastal sharks of Guyana is poorly understood, but these species are subject ...
Matthew A. Kolmann   +3 more
doaj   +1 more source

Parturition time for the Blacktip shark, Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae), in Southwestern Atlantic [PDF]

open access: yesNeotropical Ichthyology, 2020
The determination of the period of parturition and identification of nursery areas are fundamental for the management and conservation of a fishing resource.
Jones Santander-Neto   +2 more
doaj   +1 more source

Feeding ecology of elasmobranch species in southeastern Brazil

open access: yesNeotropical Ichthyology, 2017
The feeding ecology of five elasmobranch species was studied on the southern coast of Rio de Janeiro, southwestern Atlantic Ocean. The specimens were caught with a trawl or bottom longline between January 2006 and August 2007.
Alessandra F. Viana   +2 more
doaj   +1 more source

Estado de la recién creada colección científica de mandíbulas de elasmobranquios (Chordata: Elasmobranchii) de la Facultad de Estudios Superiores Iztacala, UNAM

open access: yesRevista Biológico Agropecuaria Tuxpan, 2016
Las mandíbulas son una herramienta importante para el estudio de los elasmobranquios, tanto fósiles como actuales, las cuales difieren entre especies por su tamaño, la forma y número de dientes. Dada su relevancia, en  la presente contribución  se hace  
Gerardo Urbán Minutti   +1 more
doaj   +1 more source

Unusual presence of atlantic sharpnose shark (Rhizoprionodon terraenovae) neonates in a coastal lagoon in southeast Gulf of Mexico

open access: yesNovitates Caribaea
This study reports for the first time the presence of Rhizoprionodon terraneovae neonates in a coastal lagoon in the southeastern Gulf of Mexico. The observations suggest the presence of neonates was due to the salinity values being similar to those of ...
Armando T. Wakida-Kusunoki   +2 more
doaj   +1 more source

Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. II. Sharks and Chimaeras

open access: yesAnimals, 2021
The chondrichthyan fishes, which comprise sharks, rays, and chimaeras, are one of the most threatened groups of vertebrates on the planet. Given this situation, an additional strategy for the protection of these species could be the ex situ conservation ...
Pablo García-Salinas   +2 more
doaj   +1 more source

Inferring Life History Characteristics of the Oceanic Whitetip Shark Carcharhinus longimanus From Vertebral Bomb Radiocarbon

open access: yesFrontiers in Marine Science, 2020
Oceanic whitetip sharks Carcharhinus longimanus are a cosmopolitan epipelagic species that was once prolific throughout the tropics and subtropics but was recently listed as Critically Endangered by the International Union for the Conservation of Nature ...
Michelle S. Passerotti   +2 more
doaj   +1 more source

Intensive Commercialization of Endangered Sharks and Rays (Elasmobranchii) Along the Coastal Amazon as Revealed by DNA Barcode

open access: yesFrontiers in Marine Science, 2021
Elasmobranchs represent a well-defined group, composed of about 1,150 species inhabiting diverse aquatic environments. Currently, several of these species have been classified as threaten due to overexploitation.
Thais Martins   +7 more
doaj   +1 more source

Rayas y tiburones como fauna acompañante en las pesquerías de camarón: una revisión.

open access: yesRevista de Investigaciones Marinas, 2023
Se presenta una revisión sobre los elasmobranquios en la pesquería de arrastre de camarón. La fauna acompañante de camarón (FAC) está compuesta por una gran diversidad de especies en la que predominan los peces.
Alejandra Briones Bell-lloch   +2 more
doaj  

Home - About - Disclaimer - Privacy