Results 1 to 10 of about 5,610 (134)
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 +4 more
doaj +2 more sources
Ecology and Evolution, Volume 16, Issue 7, July 2026.This study investigates how boat traffic and environmental factors shape the spatial distribution and habitat selection of Guiana dolphins in a northeastern Brazilian estuary. Although dolphins and boats overlapped broadly—particularly in deeper waters—dolphins showed a preference for areas with lower boat traffic, greater depths, and proximity to ...
Alice Lima +5 more
wiley +2 more sources
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura +3 more
wiley +2 more sources
Frontiers in Marine Science, 2021 In many regions of the world, the use of cetaceans as bait or protein source has been reported. In most cases the individuals are from bycatch but also from intentionally killed animals.
Yurasi Briceño +4 more
doaj +2 more sources
Frontiers in Marine ScienceUnderstanding how environmental and anthropogenic factors influence foraging behavior is essential to assess the vulnerability of coastal dolphin populations.
Juliana Lopez Marulanda +3 more
doaj +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
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 +13 more
doaj +1 more source
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 +2 more
semanticscholar +1 more source
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 +3 more
semanticscholar +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 +4 more
doaj +1 more source