Results 91 to 100 of about 13,633 (199)

Records of Guiana dolphin, Sotalia guianensis, in the State of Ceará, Northeastern Brazil

Latin American Journal of Aquatic Mammals, 2010
The Guiana dolphin, Sotalia guianensis, is a small delphinid found in costal waters, estuaries and bays from Santa Catarina, Brazil, to Nicaragua. Strandings of Guiana dolphins were recorded systematically and opportunistically in the coast of Ceara (~02-04oS), northeastern Brazil, from 1992 to 2005. A total of 160 single events were documented.
A. C. O. Meirelles, A. C. Ribeiro, C. P. N. Silva, A. A. Soares-Filho   +3 more
openaire   +2 more sources

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

The Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae, Julien Benoit, Irina Ruf, Zoleka Sibiya, Bhart‐Anjan S. Bhullar   +4 more
wiley   +1 more source

Tucuxi and Guiana Dolphin: Sotalia fluviatilis and S. guianensis

, 2009
This chapter explores the two species of the genus Sotalia, riverine Sotalia fluviatilis and marine S. guianensis. The two Sotalia species are very similar in coloration, differing mainly in body size and number of teeth, and somewhat resembling a small ...
Silva, Vera Maria Ferreira da, Vera M.F. Da Silva, Flores, Paulo A.C., Paulo A.C. Flores   +3 more
core   +1 more source

Capture-recapture abundance estimate of Guiana dolphins in southeastern Brazil

Ciencias Marinas, 2012
The objective of this study was to estimate the abundance of Sotalia guianensis in Sepetiba Bay, southeastern Brazil, based on photographic identification of animals. Estimates of population size were obtained using capture-recapture models for a closed
M Freitas-Nery, S Marino-Simão
doaj   +1 more source

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  

Feeding associations between Guiana dolphins, Sotalia guianensis (Van Bénèden, 1864) and seabirds in the Lagamar estuary, Brazil Associações de alimentação entre o boto-cinza (Sotalia guianensis) (Van Bénèden, 1864) e aves marinhas no estuário do Lagamar, Brasil

Brazilian Journal of Biology, 2010
The main objective of the present study was to describe the characteristics regarding interactions between Guiana dolphins, Sotalia guianensis and seabirds in feeding associations in two distinct areas of the Lagamar estuary, Brazil.
MCO. Santos, JEF. Oshima, ES. Pacífico, E. Silva   +3 more
doaj   +1 more source

Persistent Hotspots and Seasonal Habitat Use of Indo‐Pacific Bottlenose Dolphins (Tursiops aduncus) in an Urban Marine Protected Area

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 10, October 2026.
ABSTRACT Understanding wildlife distribution is essential for identifying critical habitats, monitoring responses to environmental change and informing conservation strategies. We used long‐term sighting data (1993–2020) and generalised additive modelling (GAM) to quantify and characterise the long‐term spatiotemporal distribution of Indo‐Pacific ...
Kennadie Haigh, Guido J. Parra, Luciana Möller   +2 more
wiley   +1 more source

Pyrethroid insecticides along the Southwestern Atlantic coast: Guiana dolphin (Sotalia guianensis) as a bioindicator

Science of The Total Environment, 2020
The presence of pyrethroid compounds in hepatic tissue of Guiana dolphins (Sotalia guianensis) is reported for the first time. Twelve pyrethroids were determined in 50 animals from eight locations of the Brazilian coast. The highest average concentration of total pyrethroids (∑PYR) was 1166 ng.g-1 lw, with values ranging from 148 to 5918 ng.g-1 lw, in ...
Lara G. Vidal, Monizze Vannuci-Silva, Mariana B. Alonso, Maria L. Feo, Cayo Corcellas, Tatiana L. Bisi, Leonardo Flach, Ana Bernadete Lima Fragoso, Flávio J. Lima Silva, Vítor Luz Carvalho, Ana Carolina O. de Meirelles, Camila Domit, Lupércio A. Barbosa, Marta J. Cremer, Alexandre F. Azevedo, João Paulo M. Torres, Olaf Malm, José Lailson-Brito, Ethel Eljarrat   +18 more
openaire   +3 more sources

Sotalia fluviatilis

, 1982
Sotalia fluviatilis (Gervais, 1853). In Gervais, Bull. Soc. Agric. Herault, p. 148. TYPE LOCALITY: Peru, Loreto, Rio Maranon above Pebas. DISTRIBUTION: W. Atlantic from Panama to Santos, Sao Paulo, Brazil; Amazon River system.
Kenneth E. Kinman, James H. Honacki, James W. Koeppl   +2 more
core   +1 more source

Do Marine Mammals Diversify More Slowly Than Non‐Marine Mammals?

Journal of Biogeography, Volume 53, Issue 1, January 2026.
ABSTRACT Aim Species richness is generally lower in marine than in terrestrial ecosystems, but the reasons behind this disparity remain unclear. This study examines whether marine mammals diversify at a slower pace than their non‐marine counterparts, aiming to shed light on the factors explaining potential diversification differences among them ...
Adriana Oliver, Graciela Sotelo, Sofía Galván, Iván Rey‐Rodríguez, Adrián Castro‐Insua, Sara Gamboa, Marta Matamala‐Pagès, Pedro Beca‐Carretero, Eduardo Méndez‐Quintas, Andrea Serodio, Sara Varela   +10 more
wiley   +1 more source