Results 21 to 30 of about 7,244 (234)

Interspecific Associations of the Rare and Endangered Stingray (<i>Styracura schmardae</i>) in Caribbean Sandy-Bottom Habitats. [PDF]

Ecol Evol
We document novel interspecific associations of the endangered Atlantic chupare stingray (Styracura schmardae) in Caribbean sandy‐bottom habitats. Observations include nuclear–follower interactions with needlefish (Strongylura marina) and hitchhiking by sharksuckers (Echeneis naucrates), revealed through direct in situ records and citizen science data ...
de Carvalho-Souza GF, Sparaventi E, Echeverría-Sáenz S.   +2 more
europepmc   +2 more sources

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

Psicologia: Reflexão e Crítica, 2008
Research in animal behavior is a consolidated area whose development and diversification in several countries have originated some subjects and investigation approaches, such as Ethology, Behavior Ecology, Neuroecology, Psychology and Evolutionist ...
Lídio França do Nascimento, Priscila Izabel A. P. Medeiros, Maria Emilia Yamamoto   +2 more
doaj   +1 more source

Density, abundance and distribution of the guiana dolphin, (Sotalia guianensis van Benéden, 1864) in Sepetiba Bay, Southeast Brazil

J. Cetacean Res. Manage., 2023
Line transect surveys were conducted from August 2002 to July 2003 to examine the abundance and distribution of the guiana dolphin (Sotalia guianensis) in Sepetiba Bay-Southeast Brazil. A boat-based platform and 50 pre-determined line transects were used
L. Flach, Patricia Amaral Flach, Adriano Garcia Chiarello   +2 more
semanticscholar   +1 more source

High-frequency social communication in Sotalia guianensis [PDF]

The Journal of the Acoustical Society of America, 2019
This study aimed to investigate the use of high ultrasonic frequencies (above 40 kHz) in the Sotalia guianensis whistle repertoire. The whistles were classified as high-frequency (HF) whistles and very high-frequency (VHF) whistles. Seven parameters were extracted and a general linear mixed effects model was performed between the total number of ...
Mariana, Barbosa, Lis, Bittencourt, Luciana, G Andrade, Tatiana, L Bisi, José, Lailson-Brito, Alexandre, F Azevedo   +5 more
openaire   +2 more sources

New records of Nasitrema atenuatta and Nasitrema globicephalae (Trematoda: Brachycladiidae) Neiland, Rice and Holden, 1970 in delphinids from South Atlantic [PDF]

Check List, 2013
Twenty-one Sotalia guianensis (van Bénéden, 1864) and one Steno bredanensis (Lesson, 1828) stranded on Brazilian coast were necropsied. Two species of Nasitrema (Trematoda: Brachycladiidae) Ozaki, 1935, were identified in the respiratory tract of the ...
Mariana Ebert, Ana Valentere
doaj   +3 more sources

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

Stay here, but keep quiet: the effects of anthropogenic noise on Guiana dolphins (Sotalia guianensis) in southeastern Brazil

Marine Biology, 2023
Shipping is the principal source of anthropogenic noise in the aquatic soundscape of many coastal areas. Noise can affect temporally or permanently the physiology, behavior, and ecology of marine mammals.
Israel S. Maciel, Teresa Belderrain, M. A. S. Alves, R. Tardin   +3 more
semanticscholar   +1 more source

Feeding Strategies of the Guiana Dolphin Sotalia guianensis [PDF]

The Open Marine Biology Journal, 2009
The aim of this study was to characterize the feeding behavior of the Guiana dolphin, S. guianensis, through description and quantification of the strategies used by the dolphins, and possibly to apply this patterns to other areas in its distribution. Data were collected during systematic boat surveys, between November/1996 and May/1997, with 120 hours
Marcos R. Rossi-Santos, Paulo A.C. Flores   +1 more
openaire   +1 more source

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

Study and conservation of the Guiana Dolphin (Sotalia guianensis) (Van Bénéden, 1864) in French Guiana

Latin American Journal of Aquatic Mammals, 2022
The Guiana dolphin (Sotalia guianensis) occurs in warm and shallow waters of the Atlantic Ocean and the Caribbean Sea, from southern Brazil to Honduras, including estuarine and freshwater habitats such as Maracaibo Lake (Venezuela), and the Orinoco River.
Amandine Bordin, Margot Vanhoucke, Kévin Pineau, Laurent Kelle, Nolwenn Cozannet, Monique Pool, Jaime Bolaños‐Jiménez, B. de Thoisy   +7 more
semanticscholar   +1 more source