Results 41 to 50 of about 3,559 (155)

Karyotypes of Manatees: New Insights into Hybrid Formation (Trichechus inunguis × Trichechus m. manatus) in the Amazon Estuary

, 2022
Great efforts have been made to preserve manatees. Recently, a hybrid zone was described between Trichechus inunguis (TIN) and the Trichechus manatus manatus (TMM) in the Amazon estuary.
Julio C. Pieczarka, Cleusa Y. Nagamachi, Chagas, Monique C. S., Sabioni, Luiz A., Klautau, Alex G. C. M., Nascimento, Luís Adriano Santos do, do Nascimento, Luís Adriano Santos, Renata C. R. Noronha, Silva, Natalia K. N., Fábia O. Luna, Tavares, Flávia S., Bastos, Carlos E. M. C., Lima, Danielle S., Martins, Cesar [UNESP], Alex G. C. M. Klautau, Luís Adriano Santos do Nascimento, Marcelo R. Vicari, Luiz A. Sabioni, Adauto L. Cardoso, Flávia S. Tavares, Fernanda L. N. Attademo, Danielle S. Lima, Martins, Cesar, Cesar Martins, Jairo Moura Oliveira, Monique C. S. Chagas, Natalia K. N. Silva, Noronha, Renata C. R., Almeida, Bruno R. R., Cardoso, Adauto L., Luna, Fábia O., Oliveira, Jairo Moura, Sampaio, Maria I. C., Maria I. C. Sampaio, Carlos E. M. C. Bastos, Bruno R. R. Almeida, Cardoso, Adauto L. [UNESP], Vicari, Marcelo R., Nagamachi, Cleusa Y., Pieczarka, Julio C., Attademo, Fernanda L. N.   +40 more
core   +1 more source

Bioacoustic Classification of Antillean Manatee Vocalization Spectrograms Using Deep Convolutional Neural Networks

Applied Sciences, 2020
We evaluated the potential of using convolutional neural networks in classifying spectrograms of Antillean manatee (Trichechus manatus manatus) vocalizations. Spectrograms using binary, linear and logarithmic amplitude formats were considered.
Fernando Merchan, Ariel Guerra, Héctor Poveda, Héctor M. Guzmán, Javier E. Sanchez-Galan   +4 more
doaj   +1 more source

Habitat Suitability for a Unique, Fully Marine American Manatee (Trichechus manatus) Population Primarily Depends on Presence of Submarine Freshwater Springs

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The American manatee (Trichechus manatus) requires freshwater mainly from rivers and springs to maintain osmoregulatory balance in saline environments. However, in Brazil's semi‐arid Potiguar Basin, manatees now rely solely on submarine freshwater springs because hypersaline estuaries have become unsuitable sources of freshwater.
A. C. O. Meirelles, I. C. Normande, M. D. O. Alves, K. F. Choi, V. L. Carvalho, J. C. G. Borges, L. von Fersen, Andrew W. Trites   +7 more
wiley   +1 more source

Datos preliminares del estudio cardiológico de dos ejemplares en cautiverio de Trichechus manatus manatus y Trichechus inunguis , (Mammalia, Sirenia)

Acta Biológica Colombiana, 2001
Los manatíes son mamíferos acuáticos de gran tamaño. Estos animales poseen hábitatsrestringidos y con características particulares. Para Colombia se han detectado poblacionesmuy bajas y dada la ubicación de estos mamíferos en grupos aislados en sistemas ...
MA. Vargas, ML. Bueno
doaj  

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

Limnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract 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, and freshwater environments.
Camila Carvalho de Carvalho, Emma Deeks, Leandro L. Ciotti, Silvina Botta, Miriam Marmontel, Margareth Copertino, Fábia de Oliveira 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
wiley   +1 more source

Áreas de distribución y alimentación del manatí Trichechus manatus manatus en época de aguas altas en la zona de influencia Puerto Carreño, Vichada, Colombia

Acta Biológica Colombiana, 2004
En los meses de junio a octubre del año 2003, correspondientes a la época hidroclimática de aguas altas, se realizó un estudio sobre el río Orinoco, en la zona de influencia de Puerto Carreño cuyo objetivo perseguía la descripción de aspectos ...
Isabel Victoria Gómez Camelo, Enrique Zerda Ordóñez, Delma Nataly Castelblanco Martínez   +2 more
doaj  

Xica - a história de vida do peixe-boi-marinho (Trichechus manatus) mais velho do Brasil: relato de caso

Medicina Veterinária, 2021
O peixe-boi-marinho (Trichechus manatus), um dos mamíferos aquáticos mais ameaçados de extinção do Brasil, tem o resgate e a reabilitação destes animais como importante ferramenta de conservação. Xica foi resgatada de um cativeiro inadequado na praça do
Fabia de Oliveira Luna, Fernanda Loffler Niemeyer Attademo   +1 more
doaj  

Rapidly declining seagrass meadows in Brazil: Findings from satellite imagery and local knowledge

People and Nature, Volume 8, Issue 5, Page 1155-1171, May 2026.
Abstract Due to the limitations of individual monitoring approaches, integrating social perceptions with multiple advanced technologies provides a new opportunity to gain a comprehensive understanding of ecosystem degradation. We combined historical aerial mapping, satellite imagery, semi‐structured interviews with local stakeholders, and a bilingual ...
Karine Matos Magalhães, Emma Deeks, Aline da Silva Cerqueira, Gabriel Henrique Ferreira Silva, Fabiana Aguiar Santos, Terry Dawson, Pavel Kratina   +6 more
wiley   +1 more source

Automated tracking of the Florida Manatee (Trichechus manatus)

, 1977
Issued as Status report no. 1-13, and Final report, Project no.
Michelson, Robert Carroll
core   +1 more source

Cuban Connection: Regional Role for Florida's Manatees

Frontiers in Marine Science, 2018
The status of the West Indian manatee [Trichechus manatus (Linnaeus, 1758)] remains enigmatic. The International Union for Conservation of Nature classifies the species as “Vulnerable” and the two subspecies [T. m. manatus (Linnaeus, 1758) and T.
Anmari Alvarez-Alemán, Anmari Alvarez-Alemán, James D. Austin, James D. Austin, Charles A. Jacoby, Charles A. Jacoby, Thomas K. Frazer, Thomas K. Frazer   +7 more
doaj   +1 more source