Results 11 to 20 of about 44,798 (149)

Congenital Ocular Findings in an Antillean Manatee (Trichechus manatus manatus) [PDF]

Veterinary Medicine and Science
The West Indian manatee (Trichechus manatus manatus), a sirenian species critically endangered throughout its range, possesses unique ocular adaptations to aquatic life, including reduced eyes, vascularized corneas and an anteriorly displaced lens.
Fernanda Loffler Niemeyer Attademo, Radan Elvis Matias de Oliveira, Fábia de Oliveira Luna, Helena Gurjão Pinheiro do Val, Lucas Inácio dos Santos Melo, Lisandra Hannah Shttoves da Silva, Bruna Bezerra, Fabrício Bezerra de Sá   +7 more
doaj   +3 more sources

Ultrasonographic Ocular Biometry of the Greater Caribbean Manatee (Trichechus manatus manatus). [PDF]

Vet Ophthalmol
ABSTRACT This study aimed to characterize the ocular biometry of the Trichechus manatus manatus applying B‐mode ultrasonography across different age groups. Twenty‐two animals were assessed employing a portable ultrasound device equipped with a linear transducer. Five ocular parameters were assessed: corneal thickness (CT), anterior chamber depth (ACD),
de Oliveira REM, Attademo FLN, Oliveira RKM, Dos Santos RP, de Oliveira Luna F, Mignucci-Giannoni AA, Cabrias-Contreras LJ, de Sá FB, Silva FJL, Freire ACDB, de Oliveira MF.   +10 more
europepmc   +2 more sources

First report of Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae) in an olive-ridley Turtle Lepidochelys olivacea (Eschscholtz, 1829) from Brazil [PDF]

Helminthologia, 2023
This article reports the first occurrence of Rhytidodes gelatinosus (Rudolphi, 1819) Looss, 1901 (Digenea: Rhytidodidae) in the olive-ridley turtle Lepidochelys olivacea (Testudines: Chelonidae), in an individual found in the State of Sergipe, Brazil ...
Da Cunha Fernandes J., De Carvalho L. M., Gomes Borges J. C., Parente J. E. V., Werneck M. R.   +4 more
doaj   +2 more sources

American manatees adjust their diet composition and trophic niche breadth across different coastal regions

Limnology and Oceanography Letters
Marine mammals can exhibit high plasticity in foraging strategies, but how such plasticity is driven by environmental conditions is poorly understood. The American manatee (Trichechus manatus), a large, endangered herbivore, inhabits marine, estuarine ...
Camila Carvalho deCarvalho, Emma Deeks, Leandro L. Ciotti, Silvina Botta, Miriam Marmontel, Margareth Copertino, Fábia deOliveira Luna, Fernanda Niemeyer Löffer Attademo, Vitor Luz Carvalho, João Carlos Gomes Borges, Alexandra Fernandes Costa, Renata Emin‐Lima, Pavel Kratina, Eduardo Resende Secchi   +13 more
doaj   +2 more sources

Ancestral chromosomal signatures of Paenungulata (Afroteria) reveal the karyotype of Amazonian manatee (Trichechus inunguis, Sirenia: Trichechidae) as the oldest among American manatees [PDF]

BMC Genomics, 2023
Background Chromosomal painting in manatees has clarified questions about the rapid evolution of sirenians within the Paenungulata clade. Further cytogenetic studies in Afrotherian species may provide information about their evolutionary dynamics ...
Flávia dos Santos Tavares, Willam Oliveira da Silva, Malcolm Andrew Ferguson-Smith, Alex Garcia Cavalleiro de Macedo Klautau, Jairo Moura Oliveira, Angélica Lúcia Figueiredo Rodrigues, Gabriel Melo-Santos, Julio Cesar Pieczarka, Cleusa Yoshiko Nagamachi, Renata Coelho Rodrigues Noronha   +9 more
doaj   +2 more sources

The Hug of a Humpback Whale Mother: Protective Behaviors of a Calf Toward Escorts in a Competitive Group at Abrolhos Bank, Brazil [PDF]

Animals
While protective behaviors of baleen whales toward calves have been documented during predator attacks, they have not been observed in response to approach attempts by other males of the same species.
Bianca Machado Righi, Laura Aguillar, Milton C. C. Marcondes, Yvonnick Le Pendu   +3 more
doaj   +2 more sources

Strandings of cetaceans on the Espírito Santo coast, southeast Brazil, 1975–2015 [PDF]

ZooKeys, 2020
Espírito Santo state is located on the eastern margin of Brazil, in a transitional tropical-subtropical area (18°S–21°S) dominated by oligotrophic waters.
Luis Felipe S. P. Mayorga, Ralph E. T. Vanstreels, Renata C. C. Bhering, Natália Mamede, Luiz M. B. Costa, Flavia C. F. Pinheiro, Luciano W. D. Reis, Alessandro Trazzi, Wilson Luiz Chevitarese Meirelles, Alan Marques Ribeiro, Salvatore Siciliano   +10 more
doaj   +4 more sources

Pneumonia lipoide exógena em peixe-boi marinho (Trichechus manatus): relato de caso [PDF]

Medicina Veterinária, 2021
O peixe-boi-marinho (Trichechus manatus) é um dos mamíferos aquáticos mais ameaçados de extinção do Brasil. A reabilitação e soltura dos filhotes resgatados no litoral do nordeste tem sido uma das principais medidas de conservação para a espécie.
Fernanda Loffler Niemeyer Attademo, Augusto Carlos Boaviagem Freire, Glaucia Pereira Sousa, Ieverton Cleiton Correa Silva, Fabia de Oliveira Luna, Fabiano Sellos Costa   +5 more
doaj   +1 more source

DIVULGAÇÃO CIENTÍFICA EM ESPAÇOS NÃO FORMAIS AMAZÔNICOS: APLICAÇÃO DE UMA PROPOSTA ANÁLITICA NA ESTAÇÃO DE VISITA DOS MAMÍFEROS AQUÁTICOS DO BOSQUE DA CIÊNCIA/INPA [PDF]

, 2023
Scientific dissemination and learning in Science and Technology (ST) in the Amazonian context are fundamental for human, economic, and social development.
Seiffert Santos, Saulo Cézar
core   +1 more source

Tracking marine tetrapod carcasses using a low‐cost mixed methodology with GPS trackers, passive drifters and citizen science

Methods in Ecology and Evolution, Volume 14, Issue 9, Page 2354-2361, September 2023., 2023
Abstract Drift experiments are essential to understand stranding patterns and estimate the mortality of beached animals. Most studies do not use telemetry technology due to the high costs of this methodology. The objective of this paper is to describe the possibilities of tracking marine tetrapod carcasses with a low‐cost and replicable methodology ...
Maurício Tavares, Paulo Henrique Ott, Márcio Borges‐Martins   +2 more
wiley   +1 more source