Results 1 to 10 of about 138 (69)

Who Is in Handicrafts: Tooth Morphology and Age Determination as Tools to Assess Vulnerable Dolphins Sotalia spp. Supplying the Trade of Artisanal Charms in Brazil

Frontiers in Marine Science, 2022
In Brazil, dolphins’ body parts are commonly used as traditional amulets, named as love-charms, while dolphins’ teeth are commercialized in handcrafted necklaces and bracelets.
Greicy F. Ruenes, Greicy F. Ruenes, Greicy F. Ruenes, Larissa R. de Oliveira, Larissa R. de Oliveira, Renata Emin-Lima, Renata Emin-Lima, Alexandra Fernandes Costa, Alexandra Fernandes Costa, Fernanda Löffler Niemeyer Attademo, Fábia de Oliveira Luna, Salvatore Siciliano, Salvatore Siciliano, Salvatore Siciliano   +13 more
doaj   +1 more source

Eye morphology of Guiana dolphins (Sotalia guianensis) and Clymene dolphins (Stenella clymene)

Anais da Academia Brasileira de Ciências, 2022
Recent studies showed that vision and hearing in dolphins are mechanisms for perception of the environment, and transmission of information among individuals.
FERNANDA M. RODRIGUES, FABRICIO B. DE SÁ, PABLO H. LANGUIDEY, JOCIERY E. VERGARA-PARENTE, JULIANA P. GUIMARÃES   +4 more
doaj   +1 more source

Phylogenetic status and timescale for the diversification of Steno and Sotalia dolphins.

PLoS ONE, 2011
Molecular data have provided many insights into cetacean evolution but some unsettled issues still remain. We estimated the topology and timing of cetacean evolutionary relationships using bayesian and maximum likelihood analyses of complete ...
Haydée A Cunha, Lucas C Moraes, Bruna V Medeiros, José Lailson-Brito, Vera M F da Silva, Antonio M Solé-Cava, Carlos G Schrago   +6 more
doaj   +1 more source

Anomalias ósseas congênitas em Sotalia guianensis (Mammalia, Cetacea, Delphinidae) da costa centro-norte do Estado do Rio de Janeiro Congenital bone defects in Guiana dolphin, Sotalia guianensis (Mammalia, Cetacea, Delphinidae) in the northcentral coast of Rio de Janeiro State, Brazil

Pesquisa Veterinária Brasileira, 2010
Carcaças de botos-cinza Sotalia guianensis (van Bénéden, 1864) foram recuperadas entre 20 de agosto de 2001 e 13 de fevereiro de 2006, na costa centro-norte fluminense. A maior parte delas (85%) entre Barra de São João (22º35'S 41º59'W) e Quissamã (22º06'
Maíra Laeta, Sheila M.F.M. Souza, Salvatore Siciliano   +2 more
doaj   +1 more source

Western Amazon Basin limits: conservation status and distribution of river dolphins (Inia geoffrensis and Sotalia fluviatilis) in Ecuador [PDF]

PeerJ
River dolphins (Inia geoffrensis and Sotalia fluviatilis) are apex predators in Ecuador’s Amazon, where they face critical endangerment due to their restricted western range limit and escalating anthropogenic pressures.
Jessica Pacheco-Esquivel, Santiago Varela, Michelle Vela-Torres, Víctor Utreras, Patricio Macas, Mariana Paschoalini, Hugo Trávez, Ismael Fernandez, Jorge Brito   +8 more
doaj   +2 more sources

ASOCIACIONES ENTRE AVES MARINAS Y SOTALIA GUIANENSIS EN EL SUR DEL GOLFO DE VENEZUELA

Caldasia, 2015
Las asociaciones entre aves marinas y mamíferos marinos es un evento común en todos los mares y océanos del mundo. Muchos autores han denominado estas asociaciones como relaciones comensalistas, oportunistas o parasitarias, según el efecto que dicha ...
NÍNIVE ESPINOZA-RODRÍGUEZ, JOANMYRA CARRASQUERO, KAREEN DE TURRIS-MORALES, GABRIELA DELGADO-ORTEGA, HÉCTOR BARRIOS-GARRIDO   +4 more
doaj   +1 more source

Guiana Dolphin Unusual Mortality Event and Link to Cetacean Morbillivirus, Brazil

Emerging Infectious Diseases, 2018
During November–December 2017, a mass die-off of Guiana dolphins (Sotalia guianensis) began in Rio de Janeiro, Brazil. Molecular and pathologic investigations on 20 animals indicated that cetacean morbillivirus played a major role.
Kátia R. Groch, Elitieri B. Santos-Neto, Josué Díaz-Delgado, Joana M.P. Ikeda, Rafael R. Carvalho, Raissa B. Oliveira, Emi B. Guari, Tatiana L. Bisi, Alexandre F. Azevedo, José Lailson-Brito, José L. Catão-Dias   +10 more
doaj   +1 more source

Descrição do comportamento de superfície do boto cinza, Sotalia guianensis, na Praia de Pipa - RN Description of the surface behaviour of marine tucuxi, Sotalia guianensis, at Pipa Beach - RN

Psicologia: Reflexão e Crítica, 2008
O estudo do comportamento animal é uma área de pesquisa consolidada, que cresceu e se diversificou em vários países e que deu origem a disciplinas e abordagens de investigação, como a Etologia, a Ecologia Comportamental, a Neuroecologia, a Psicologia e a
Lídio França do Nascimento, Priscila Izabel A. P. Medeiros, Maria Emilia Yamamoto   +2 more
doaj   +1 more source

Revisão das Informações do Boto-Cinza (Sotalia guinensis) na Costa Brasileira

Metodologias e Aprendizado, 2019
Os cetáceos, como o golfinho Sotalia guianensis (boto-cinza), são animais marinhos cujas populações vem diminuindo devido aos impactos antrópicos em seus ambientes.
Karina Farina, Marcelo Rennó Braga
doaj   +1 more source

Initial Evidence for Adaptive Selection on the NADH Subunit Two of Freshwater Dolphins by Analyses of Mitochondrial Genomes. [PDF]

PLoS ONE, 2015
A small number of cetaceans have adapted to an entirely freshwater environment, having colonized rivers in Asia and South America from an ancestral origin in the marine environment. This includes the 'river dolphins', early divergence from the odontocete
Susana Caballero, Sebastian Duchêne, Manuel F Garavito, Beth Slikas, C Scott Baker   +4 more
doaj   +1 more source