Results 71 to 80 of about 1,287 (160)

Conditions leading to exceptionally high temperatures in shallow tropical lakes

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Factors leading to exceptionally high temperatures in shallow tropical waters are examined with high‐resolution measurements and application of a 3‐dimensional hydrodynamic model in an Amazon floodplain lake. Highest near‐surface (0.05 m) temperatures in open water ranged from 31.0 to 37.5°C. Within mats of floating plants maximum temperatures
Wencai Zhou, John M. Melack, Sally MacIntyre, João H. F. Amaral, Pedro M. Barbosa   +4 more
wiley   +1 more source

Rapport intermédiaire sur l’étude Sotalie (Sotalia guianensis)

Les dauphins de rivières et notamment les sotalies de Guyanes (Sotalia guianensis) sont des animaux discrets et ainsi difficiles à étudier. Pour étudier le comportement de ces animaux, en particulier leurs zones de présence, leurs habitudes journalières ...
Mahé, Pierre, Glotin, Hervé, Chavin, Stéphane   +2 more
core   +5 more sources

The Battle of Helminths Deep: Molecular Insights Into Oegopsid Squid Parasites in Aotearoa New Zealand

New Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
Cephalopods play crucial roles in marine ecosystems due to their diverse and indispensable contributions to trophic webs. However, parasitological research on cephalopods remains limited in Aotearoa New Zealand (NZ), despite the commercial significance of certain squid species and the zoonotic potential of the parasites within them. This study aimed to
Chen‐Hua Li, Jerusha Bennett, Heather Braid, Ryan Howard, Darren Stevens, Laura E. McBride, Samuel Clough, Emily Fitzgerald, Kathrin Bolstad   +8 more
wiley   +1 more source

O Desenvolvimento do Turismo Náutico e a sua Ligação com a Observação do Boto-Cinza (sotalia guianensis) na Região de Cananéia, Litoral Sul do Estado de São Paulo

Revista Turismo em Análise, 2010
Resumo O boto-cinza é hoje um grande atrativo e gerador de renda para a região estuarina de Cananéia. O crescimento da infra-estrutura turística desta região parece estar intimamente relacionado com o crescimento do interesse em observar estes animais na
Gislaine de Fátima Filla, Emydio Monteiro Filho   +1 more
doaj  

Coordinated feeding behavior of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in southeastern Brazil: a comparison between populations

Zoologia (Curitiba), 2013
The coordinated feeding tactics used by delphinids are influenced by differences in the distribution of prey species, season, and opportunities for social learning.
Elaine C. da S. Oliveira, Rodrigo H. Tardin, Fabiana R. Poletto, Sheila M. Simão   +3 more
doaj   +1 more source

Shifting Seas, Changing Diets: Evidence of Temporal Dietary Shifts in Marine Megafauna in Southern Brazil (2017–2023)

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Understanding the dietary dynamics of marine megafauna is essential for interpreting ecological interactions and assessing environmental changes in marine ecosystems. We analysed temporal trends in the diets of eight megafaunal species, comprising marine mammals, seabirds, and sea turtles.
Joao Bosco Gusmao, Mario Roberto Castro Meira‐Filho, Camila Domit   +2 more
wiley   +1 more source

Local ecological knowledge and the interaction of porpoises with fishing on the coast of the state of Para, Brazil [PDF]

Biotemas, 2012
Fishing has a great importance to the socioeconomic development of the Amazonian riparian communities, which have a local knowledge on the environment, its fauna and flora.
Tiago Pereira Brito
doaj  

Herpesviral infection in a Guiana dolphin (Sotalia guianensis) from the northern coast of Brazil

, 2017
We describe herein herpesvirus-associated genital lesions in a Guiana dolphin ( Sotalia guianensis) from the northern Brazilian coast. Papillary lesions on the vulva, with epithelial hyperplasia, swollen keratinocytes, and intranuclear inclusions, were ...
Renata Emin-Lima, Siciliano, Salvatore, Gisele C. C. Seade, Bezerra Júnior, Pedro S., Chaves, Jaese F., Eva Sierra, Gabriela Riet-Correa, Jaese F. Chaves, Alexandra Fernandes Costa, Montao, Daniele P., Oliveira, Carlos A., Cerqueira, Valíria D, Riet-Correa, Gabriela, Daniele P. Montão, Emin-Lima, Renata, Valíria D. Cerqueira, Pedro S. Bezerra Júnior, Fernandez, Antonio, Salvatore Siciliano, Márcio A. O. Moura, Fernandes Costa, Alexandra, Antonio Fernández, Sierra, Eva, Carlos A. Oliveira, Moura, Márcio A. O., Seade, Gisele C. C   +25 more
core   +1 more source

From Natural to Human‐Dominated Seascapes: Habitat Loss for Guiana Dolphins Over Two Decades

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Changes in natural environments, such as coastal and marine zones, caused by human activities impact the quality of habitats and their inhabitants, ultimately jeopardising species conservation. As human activity is ever‐increasing, it is imperative to understand how multiple stressors, such as shipping, fisheries and pollution, affect marine ...
Mariana Leêne Santana Barros de Leal, Tomaz Cezimbra, Guilherme Maricato, Israel S. Maciel, Rodrigo H. Tardin   +4 more
wiley   +1 more source

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

The Anatomical Record, Volume 309, Issue 4, Page 853-863, April 2026.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source