Results 71 to 80 of about 13,633 (199)

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  

Carcass Decomposition Conceals the True Magnitude of Small Cetacean Bycatch in Southern Brazil

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Bycatch in fisheries is a primary threat to small cetaceans, but its true magnitude is often underestimated, particularly in regions with less thorough stranding response networks. Advanced decomposition of stranded carcasses often obscures evidence of fisheries interaction, masking the actual rate of anthropogenic mortality. Here, we quantify
Alícia Carla Santos   +3 more
wiley   +1 more source

Ontogeny of the skull of Sotalia guianensis (Cetartiodactyla: Delphinidae) on the Northern coast of Brazil

open access: yesIheringia. Série Zoologia, 2020
ABSTRACT This study aimed to investigate the ontogenetic development of the skull in the Guiana dolphin (Sotalia guianensis Van Bénéden, 1864 ) through the comparison of 29 morphological non-metrical characters together with the estimated age of 54 specimens derived from four areas on the northern coast of Brazil.
Renata F. Novais   +3 more
openaire   +4 more sources

Diversidad Genética y cambios demográficos históricos en la población del delfín Costero Sotalia guianensis (Cetacea: Delphinidae) de la desembocadura del Río Amazonas, en la ciudad de Belém, Brasil [PDF]

open access: yes, 2010
Los delfines del género Sotalia se encuentran distribuidos por todas las costas del océano Atlántico en América Central y del Sur, así mismo como en el Río Amazonas y algunos de sus afluyentes. Actualmente se reconocen dos especies dentro de este género:
Mejía-Rego, David
core   +1 more source

Alterações senil-degenerativas e variações anatômicas na coluna vertebral de pequenos cetáceos

open access: yesBiotemas, 1999
Apresenta-se uma visão comparativa das alterações senil-degenerativas e anomalias anatômicas da coluna vertebral de oito espécies de pequenos cetáceos: Tursiops truncatus (Montagu, 1821); Steno bredanensis (Lesson, 1823); Sotalia fluviatilis guianensis ...
Maria Heloísa B. C. Furtado   +1 more
doaj  

Variation of age and total length in Sotalia guianensis (Van Bénéden, 1864) (Cetacea, Delphinidae), on the coast of Espírito Santo state, Brazil

open access: yesBrazilian Journal of Biology
Variations of age and total length of Sotalia guianensis from the state of Espírito Santo, Brazil, were evaluated. Specimens were found stranded. Age and total length of 44 Guiana dolphins were assessed based on tooth analysis.
J. Y. Lima   +4 more
doaj   +1 more source

Lacaziose (doença de Jorge Lobo): revisão e atualização Lacaziosis (Jorge Lobo’s disease): review and update

open access: yesAnais Brasileiros de Dermatologia, 2007
Lacaziose ou doença de Jorge Lobo é micose crônica, granulomatosa, causada por implantação traumática do fungo Lacazia loboi - patógeno não cultivável até o presente - nos tecidos cutâneo e subcutâneo, manifestando-se clinicamente por lesões nodulares ...
Arival Cardoso de Brito   +1 more
doaj   +1 more source

Mitochondrial DNA diversity, differentiation and phylogeography of the South American riverine and coastal dolphins Sotalia fluviatilis and Sotalia guianensis.

open access: yesLatin American Journal of Aquatic Mammals, 2010
Here we consider the phylogeography and population structure of the South American coastal and riverine dolphins, Sotalia guianensis and Sotalia fluviatilis, based on samples (n = 76) collected across more than 9000km of the species distribution.Phylogenetic reconstruction of 31 distinct haplotypes based on a combined analysis of two mitochondrial gene
Susana Caballero   +10 more
openaire   +2 more sources

Vinte e nove anos de encalhes de mamíferos marinhos no litoral catarinense [PDF]

open access: yes, 2013
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.Os encalhes de mamíferos marinhos são frequentes mundialmente.
Vianna, Thaís dos Santos
core  

Cetacean records along São Paulo state coast, Southeastern Brazil

open access: yesBrazilian Journal of Oceanography, 2010
The São Paulo state (SP) coast (23º18'S, 44º42'W; 25º14'S, 48º01'W) is of approximately 600 km in length, bordering the Western Atlantic Ocean, in southeastern Brazil.
Marcos César de Oliveira Santos   +6 more
doaj   +1 more source

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