Results 51 to 60 of about 343 (111)

Phylogeny of Geophagine cichlids from South America (Perciformes: Labroidei) [PDF]

open access: yes, 2004
Three new species of cichlid fishes of the genus Geophagus, part of the Neotropical subfamily Geophaginae, are described from the Orinoco and Casiquiare drainages in Venezuela. Phylogenetic relationships among 16 genera and 30 species of Geophaginae are
Hernan, Lopez Fernandez
core   +1 more source

Efeitos subletais da poluição por petróleo e derivados sobre peixes da Amazônia (Amazonas, Brasil) [PDF]

open access: yes, 2014
The present work analyzed the changes in biomarkers of exposure and effects in fishes of the Amazon, especially from Negro river, exposed to the crude oil and derivatives; and verified the responses of these biomarkers according to the physical and ...
Sadauskas-Henrique, Helen
core  

Adaptações metabólicas dos ciclídeos aos ambientes hipóxicos da Amazônia [PDF]

open access: yes, 2002
Os ciclídeos neotropicais são teleósteos avançados e distribuem-se pela África, Madagascar, Américas Central e do Sul, México, sul da Índia e Sri Lanka.
Gomes, Adriana Regina Chippari
core  

Broad but restricted detection of malacosporeans in a Neotropical cradle of diversification. [PDF]

open access: yesParasitology, 2021
Naldoni J   +4 more
europepmc   +1 more source

Anatomia testicular e sua influência na hierarquia social do ciclídeoanão Apistogramma Hippolytae (Kullander, 1982) [PDF]

open access: yes, 2016
Some species of cichlids apparently undergo protogynous sex change (female to male) at some point in the life cycle. Although frequently used to designate sex change at adulthood, the term protogyny also includes prematuracional sex change, which has ...
Fernandes, Talles Romeu Colaço
core  

Checklist of the fish fauna of the Munim River Basin, Maranhão, north-eastern Brazil. [PDF]

open access: yesBiodivers Data J, 2023
Vieira LO   +11 more
europepmc   +1 more source

As adaptações dos índios tukano e maku-hup'du no rio Tiquié: nichos ecológicos distintos ou competição por recursos? [PDF]

open access: yes, 2009
The Tiquié and Vaupés Rivers, flowing from Colombia into Brazil in the sparsely populated "Alto Rio Negro" Indian Reservation, have for centuries provided the indigenous peoples of the area with adequate protein sources in an otherwise nutrient-poor ...
Wright III, Harold Martin
core  

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