Results 111 to 120 of about 3,343 (212)

Functional trophic composition of the ichthyofauna of forest streams in eastern Brazilian Amazon. [PDF]

open access: yes, 2015
Este estudo teve como objetivo descrever a organização funcional da fauna de peixes de riachos do nordeste do estado do Pará, Brasil, com base em observações comportamentais das táticas alimentares das espécies. Sete igarapés foram amostrados entre junho
BREJÃO, G. L., GERHARD, P., ZUANON, J.
core  

Caracterização citogenética e molecular das espécies Cichla kelberi e Cichla piquiti e seu possível híbrido interespecífico coletados em ambientes naturais

open access: yes, 2014
Espécies invasoras são altamente eficientes na competição por recursos, tem alta capacidade reprodutiva e de dispersão, o gênero Cichla é exemplo dessas características. Os espécimes desse gênero são amplamente utilizados no controle de espécies exóticas com alta prolificidade, além de sua indiscutível importância na alimentação humana e na pesca ...
openaire   +2 more sources

Amazon fish parasites

open access: yes, 1991
The present book is an attempt to compile all available information on Amazon fish parasites. For the sake of comparison, freshwater fìsh parasites from other parts of the Neotropical Region have been included.
Thatcher, V.
core  

Endohelminths in Cichla piquiti(Perciformes, Cichlidae) from the Paraná River, São Paulo State, Brazil

open access: yesRevista Brasileira de Parasitologia Veterinária
Fifty specimens of Cichla piquiti were collected from the Paraná River downstream of the Ilha Solteira Hydroelectric Power Station in Brazil and surveyed for endohelminth parasites.
Lidiane Franceschini   +5 more
doaj   +1 more source

Análise da variação ontogenética da assinatura isotópica de Cyanocharax alburnus (Teleostei, Characiformes) [PDF]

open access: yes, 2011
A análise de isótopos estáveis está sendo cada vez mais utilizadas para o entendimento da real assimilação de nutrientes e da posição trófica de organismos.
Batista, Cibele Boeira
core  

Color pattern variation in Cichla temensis (Perciformes: Cichlidae): resolution based on morphological, molecular, and reproductive data

open access: yesNeotropical Ichthyology
Morphological variants of Cichla temensis, readily differentiated by their striking color pattern differences, are found in several Amazon basin flood pulse river systems.
Paul Reiss   +3 more
doaj   +1 more source

Temporary fat storage, an adaptation of some fish species to the waterlevel fluctuations and related environmental changes of the Amazon river

open access: yes, 1985
Analysis of Amazonian freshwater fish exhibited great differences in water- and fat content. Migratory species which deposit huge amounts of eggs in a single spawning act accumulate at high water-level great amounts of fat in various parts of the body ...
Junk, W.
core  

Comparative pleopod morphology of eleven species of parasitic isopods from Brazilian fish

open access: yes, 1995
The pleopod morphology of eleven species of parasitic isopods from Brazilian fish was compared. Ten species of Cymothoidae were studied, as follows: Asotana magnifica THATCHER, 1988; Artystone minima THATCHER & CARVALHO, 1988; Braga cichlae SCHIöDTE ...
Thatcher, V.
core  

Important role of endogenous microbial symbionts of fish gills in the challenging but highly biodiverse Amazonian blackwaters. [PDF]

open access: yesNat Commun, 2023
François-Étienne S   +9 more
europepmc   +1 more source

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