Results 201 to 210 of about 7,244 (234)

A preliminary study on mercury levels in the soft tissues of the Guiana dolphin (Sotalia guianensis) and edible fish from southern Lake Maracaibo, Venezuela

Latin American Journal of Aquatic Mammals
Coastal ecosystems around the world are facing increasing mercury pollution from various anthropogenic activities, which are affecting many aquatic mammals such as dolphins.
Yurasi Briceño, Leonardo Sánchez, Fernando Trujillo, María Hernández, Valery John, Lorenzo Von Fersen   +5 more
semanticscholar   +1 more source

Latitudinal variation in whistle structure of the estuarine dolphin Sotalia guianensis

Behaviour, 2006
[Analyses of intraspecific variation in behaviour can provide insights into the process of behavioural diversification. In this study we characterized geographic variation in whistle structure of the estuarine dolphin, Sotalia guianensis, at 10 sites of a ∼4000 km transect along the coast of Brazil.
Rossi-Santos, MR, Podos, J
openaire   +2 more sources

Guiana Dolphin (Sotalia guianensis) acoustic behavior differs under different noise conditions

Journal of Mammalogy
Coastal environments are essential habitats for small dolphins but are increasingly affected by urban development, with underwater noise pollution posing significant threats.
Daiane S Marcondes, Camilla Domit, M. Cantor   +2 more
semanticscholar   +1 more source

The lungworm, Halocercus brasiliensis (Nematoda: Pseudaliidae), from Guiana Dolphins Sotalia guianensis from Brazil with Pathological Findings.

Journal of Parasitology, 2020
The Guiana dolphin, Sotalia guianensis, is a small cetacean species found on the Atlantic coast of Central and South America from Honduras to Santa Catarina State, Brazil.
Isis de Oliveira Carvalho Demarque, F. C. D. de Oliveira, L. S. da Silveira, Lupércio A. Barbosa, N. B. Ederli   +4 more
semanticscholar   +1 more source

Guiana Dolphins (Sotalia guianensis) as Marine Ecosystem Sentinels: Ecotoxicology and Emerging Diseases

2013
Guiana dolphins (Sotalia guianensis) are small cetaceans that inhabit coastal regions down to a 50 m depth. As a coastally distributed species, they are exposed to a variety of human-induced risks that include passive fishing nets, persistent environmental pollution, and emerging diseases. As a top predatorS. guianensis occupies an important ecological
Jailson Fulgencio, de Moura, Rachel Ann, Hauser-Davis, Leila, Lemos, Renata, Emin-Lima, Salvatore, Siciliano   +4 more
openaire   +2 more sources

Clinical signs in free-ranging Guiana dolphins Sotalia guianensis during a morbillivirus epidemic: case study in Sepetiba Bay, Brazil.

Diseases of Aquatic Organisms, 2019
From November 2017 to March 2018, a cetacean morbillivirus (CeMV) outbreak caused an unprecedented mass mortality among Guiana dolphins Sotalia guianensis in Ilha Grande Bay and Sepetiba Bay, Rio de Janeiro, Brazil.
L. Flach, M. B. Alonso, T. Marinho, K. Van Waerebeek, M. Van Bressem   +4 more
semanticscholar   +1 more source

Abundance Estimates of Guiana Dolphins (Sotalia guianensis; Van Bénéden, 1864) Inhabiting an Estuarine System in Southeastern Brazil

Aquatic Mammals, 2019
Introduction Baseline demographic information is essential The Guiana dolphin (Sotalia guianensis; Van for effective conservation and management stratBénéden, 1864) is a small cetacean (Delphinidae) egies for most living species.
A. H. B. Mello, J. Molina, M. Kajin, M. C. Santos   +3 more
semanticscholar   +1 more source

Acoustic Description of Beach-Hunting Guiana Dolphins (Sotalia guianensis) in the Cananéia Estuary, Southeastern Brazil

, 2020
Acoustic Description of Beach-Hunting Guiana Dolphins (Sotalia guianensis) in the Cananeia Estuary, Southeastern ...
Nayara C. Tannure, Fernando S Barbosa, Diogo D. Barcellos, Beatriz Mattiuzzo, A. Martinelli, L. B. Campos, V. R. M. Conversani, M. C. Santos   +7 more
semanticscholar   +1 more source

Population Structure of Riverine and Coastal Dolphins Sotalia fluviatilis and Sotalia guianensis: Patterns of Nuclear and Mitochondrial Diversity and Implications for Conservation

Journal of Heredity, 2018
Coastal and freshwater cetaceans are particularly vulnerable due to their proximity to human activity, localized distributions, and small home ranges. These species include Sotalia guianensis, found in the Atlantic and Caribbean coastal areas of central ...
S. Caballero, C. Hollatz, S. Rodríguez, F. Trujillo, C. S. Baker   +4 more
semanticscholar   +1 more source

Captive-born intergeneric hybrid of a Guiana and bottlenose dolphin: Sotalia guianensis×Tursiops truncatus

Zoo Biology, 2009
Bottlenose dolphins (Tursiops truncatus) and Guiana dolphin (Sotalia guianensis) live in sympatry along the Caribbean Coast of Central and South America and social interactions between these species have been described in the Caribbean Coast of Costa Rica, including sexual encounters.
S, Caballero, C S, Baker
openaire   +2 more sources