Results 211 to 220 of about 7,244 (234)

Ups and downs: An insight on the stranding pattern of Guiana dolphins, Sotalia guianensis, in the Amazon Estuary, Northern Brazil

Aquatic conservation
Long‐term systematic records of cetacean strandings are valuable indicators of temporal responses of specific cetacean populations and communities to natural or anthropogenic pressures. They also help guide management objectives and conservation actions.
Greicy F. Ruenes, A. Costa, M. Laeta, Renata Emin‐Lima, L. R. Oliveira, Salvatore Siciliano   +5 more
semanticscholar   +1 more source

High-frequency whistles of Guiana dolphins (Sotalia guianensis) in Guanabara Bay, southeastern Brazil

The Journal of the Acoustical Society of America, 2014
Guiana dolphins produce whistles with a higher frequency and less complexity than most other delphinid species. The present study used a recording system with sampling rate of 192 kHz to describe the high-frequency whistles of Sotalia guianensis in Guanabara Bay, Rio de Janeiro.
Luciana Guimarães de, Andrade, Isabela, Maria Seabra Lima, Lis, Bittencourt, Tatiana, Lemos Bisi, José, Lailson Brito Júnior, Alexandre, de Freitas Azevedo   +5 more
openaire   +2 more sources

Timing of ontogenetic changes of two cranial regions in Sotalia guianensis (Delphinidae)

Mammalian Biology, 2012
Despite the fact that heterochronic processes seem to be an important process determining morphological evolution of the delphinid skull, previous workers have not found allometric scaling as relevant factor in the differentiation within the genus Sotalia. Here we analyzed the skull ontogeny of the estuarine dolphin S.
Nicolle V. Sydney, Fabio A. Machado, Erika Hingst-Zaher   +2 more
openaire   +1 more source

Exploring microplastic contamination in Guiana dolphins (Sotalia guianensis): Insights into plastic pollution in the southwestern tropical Atlantic.

Marine Pollution Bulletin, 2023
L. G. Pereira, G. V. Ferreira, A. K. Justino, Kelen Melo Tavares de Oliveira, Monique Torres de Queiroz, Natascha Schmidt, Vincent Fauvelle, V. Carvalho, F. Lucena‐Frédou   +8 more
semanticscholar   +1 more source

Habitat use of Guiana dolphin (Sotalia guianensis) in a heavily urbanized embayment

Marine Ecology Progress Series, 2023
Aco de Meirelles, KF Choi-Lima, TM Campos Vila Nova, E. Leite de Araujo Monteiro Filho, TMdC Lotufo   +4 more
semanticscholar   +1 more source

Abundance and effect of health status on apparent survival of Guiana dolphins, Sotalia guianensis , in an open embayment in north‐eastern Brazil

Aquatic conservation, 2022
A. Meirelles, K. F. Choi‐Lima, Thaís Moura Campos Vila Nova, E. Monteiro‐Filho, T. Lotufo   +4 more
semanticscholar   +1 more source

Intergeneric behavior between Sotalia fluviatilis guianensis and Tursiops truncatus in captivity

1983
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

The legacy and future of multiple anthropogenic stressors: Organohalogen compounds in the vulnerable Guiana dolphin (Sotalia guianensis).

Journal of Hazardous Materials
Nara de Oliveira-Ferreira, E. Santos-Neto, B. Manhães, Monizze Vannuci-Silva, A. Colosio, H. D. C. G. Ramos, I. Cunha, Lupércio A. Barbosa, A. Farro, D. M. Faria, H.A. Cunha, T. Bisi, A. Azevedo, J. Lailson‐Brito   +13 more
semanticscholar   +1 more source

An Unusual Record of a Marine Dolphin (Sotalia guianensis) Being Scavenged by Jaguar (Panthera onca) at the Northern Brazilian Amazon

Aquatic Mammals
Girlan Dias, Adriano Gambarini, M. Oliveira‐da‐Costa, Miriam Marmontel   +3 more
semanticscholar   +1 more source

Legacy persistent organic pollutants (POPs) are still a threat to marine top predators from Brazil: POPs and halogenated natural bipyrrole in live, free-ranging Guiana dolphins, Sotalia guianensis, from a tropical estuary.

Environmental Pollution
Dhoone Menezes-Sousa, César Bruno Miranda Pessoa, Larissa Schmauder Teixeira Cunha, G. P. Bighetti, Natasha Rodrigues Renz, R. Montone, Walter Vetter, P. Dorneles, L. Flach, João Paulo Machado Torres, M. B. Alonso   +10 more
semanticscholar   +1 more source