Results 111 to 120 of about 1,287 (160)

Modelagem da dinâmica populacional e social de Sotalia guianensis (Cetacea: Delphinidae) [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, Florianópolis, 2011Sistemas complexos têm fascinado cientistas com sua auto-organização e propriedades emergentes. Este
Magnani, Mauricio Neves Cantor
core  

Abundance estimate of the Amazon River Dolphin (Inia geoffrensis) and the tucuxi (Sotalia fluviatilis) in southern Ucayali, Peru

open access: yes, 2017
We present results of the first simultaneous visual and acoustic surveys for Amazon River dolphins (Inia geoffrensis) and tucuxi (Sotalia fluviatilis), undertaken in Yarinacocha Lagoon, Ucayali, Peru (length = 20 km, area = 12 km2).
Godley, B.J.   +3 more
core   +1 more source

Evidence of interactions between Manta birostris and Sotalia guianensis in a southern Brazilian estuary

open access: yes, 2017
During 1442 h of visual observations over 7 years throughout the World Heritage listed Paranagua estuarine complex, Brazil, seven occurrences of interactions were observed at a single location involving breaching Manta birostris displacing schools of ...
Domit, C.   +2 more
core   +1 more source

APLICAÇÃO DA TÉCNICA DE FOTOIDENTIFICAÇÃO DO BOTO-CINZA, Sotalia fluviatilis, (Cetacea, Delphinidae) DA BAÍA DE SEPETIBA.

open access: yesFloresta e Ambiente
RESUMO O catálogo de fotoidentificação da população de boto-cinza, Sotalia fluviatilis, da Baía de Sepetiba vem sendo formado desde 1994. São apresentados os dados preliminares do período entre abril de 1994 a junho de 1998, os quais indicam haver ...
SHEILA MARINO SIMÃO   +3 more
doaj  

FISHERY ACTIVITY IMPACT ON THE SOTALIA POPULATIONS FROM THE AMAZON MOUTH

open access: yes, 2023
This chapter describes and analyzes the bycatch of Sotalia guianensis, in gillnets by an artisan fishing fleet within the Amazonian estuary during two time periods: 1996-1997 and 1999-2001. Number, size and gender data, as well as dolphin specimens were obtained from fishermen at Brazilian ports and analyzed. Fishing capacity and effort were determined
Beltran-Pedreros, Sandra   +3 more
openaire   +1 more source

Modelación de nicho y aspectos biogeográfícos del género Sotalia (Cetartiodactyla: Delphinidae) en los ríos Amazonas y Orinoco, Colombia [PDF]

open access: yes, 2016
El género Sotalia (Cetartiodactyla: Delphinidae) esta compuesto de dos especies, basados en morfología craneal y evidencia genética. La primera Sotalia fluviatilis (continental) corresponde a individuos distribuidos en la cuenca del río Amazonas y ...
Mantilla Meluk, Hugo   +4 more
core  

Cetacean diversity on the Parnaiba Delta, Maranhão state, northeastern Brazil

open access: yesBrazilian Journal of Biology
The increase in the research of cetacean surveys on the Brazilian coast has brought new data on the distribution of species never reported before. The present work reviews the current knowledge on cetaceans species and extends this knowledge with an ...
FA. Magalhães   +4 more
doaj   +1 more source

Analysis of whistles produced by the Tucuxi Dolphin Sotalia fluviatilis from Sepetiba Bay, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2004
From July 2001 to June 2002, we recorded a total of 2h55min of Tucuxi Dolphin Sotalia fluviatilis vocalizations from Sepetiba Bay, Brazil (22º35'S-44º03'W).
Erber Claudia, Simão Sheila M.
doaj  

Morfologia da coluna vertebral do botocinza, Sotalia guianensis (Cetacea, Delphinidae)

open access: yesBiotemas, 2004
Apresenta-se uma descrição da morfologia da coluna do boto-cinza (Sotalia guianenis) (n=34), bem como variações da fórmula vertebral (n=32) (UFSC - Universidade Federal de Santa catarina): Ce 7 , T12 , 1-10_12, Ca23_25 -= 52-56.
Daniela de Castro Fettuccia   +1 more
doaj  

Genetic characterization of the South American coastal and riverine dolphins Sotalia

open access: yes, 2006
Full text is available to authenticated members of The University of Auckland only.Dolphins of the genus Sotalia are some of the least studied cetaceans.
Caballero Gaitan, Susana
core  

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