Results 1 to 10 of about 69 (45)

First study on the metazoan parasite community of Crenicichla strigata (Cichliformes: Cichlidae). [PDF]

open access: yesRev Bras Parasitol Vet
This study provides the first report of metazoan parasites in Crenicichla strigata. From 31 hosts caught in the Jari River basin, in the eastern Amazon region of Brazil, a total of 1454 parasites were collected: Sciadicleithrum araguariensis ...
Mota-Júnior LO   +4 more
europepmc   +4 more sources

Chromosome differentiation patterns during cichlid fish evolution. [PDF]

open access: yesBMC Genet, 2010
Background Cichlid fishes have been the subject of increasing scientific interest because of their rapid adaptive radiation which has led to an extensive ecological diversity and their enormous importance to tropical and subtropical aquaculture.
Poletto AB   +9 more
europepmc   +6 more sources

Redescription of Astyanax erythropterus (Holmberg, 1891) (Teleostei: Characiformes: Characidae) from La Plata basin in Argentina [PDF]

open access: yes, 2010
Astyanax erythropterus (Holmberg, 1891) originally described on the basis of one juvenile, is redescribed herein based on juveniles and adults from the type-localiy.
Almirón, Adriana E.   +4 more
core   +7 more sources

Multilocus phylogeny of Crenicichla (Teleostei: Cichlidae), with biogeography of the C. lacustris group: Species flocks as a model for sympatric speciation in rivers [PDF]

open access: yes, 2019
First multilocus analysis of the largest Neotropical cichlid genus Crenicichla combining mitochondrial (cyt. b, ND2, 16S) and nuclear (S7 intron 1) genes and comprising 602 sequences of 169 specimens yields a robust phylogenetic hypothesis.
Almirón, Adriana Edith   +4 more
core   +6 more sources

Crenicichla hu, a new species of cichlid fish (Teleostei: Cichlidae) from the Paraná basin in Misiones, Argentina [PDF]

open access: yes, 2010
A new species of Crenicichla Heckel, C. hu, is described from the arroyo Piray–Miní, a left-hand tributary of the río Paraná, Misiones province, Argentina.
Almirón, Adriana Edith   +3 more
core   +3 more sources

Relação entre fator de condição relativo (Kn) e abundância de ectoparasitos de brânquias, em duas espécies de ciclídeos da bacia do rio Paraná, Brasil - DOI: 10.4025/actascibiolsci.v30i2.3625

open access: yesActa Scientiarum: Biological Sciences, 2008
Foram analisados 33 espécimes de Satanoperca pappaterra, capturados entre março de 2004 e junho de 2005, na planície de inundação do alto rio Paraná e 33 espécimes de Crenicichla niederleinii, capturados entre novembro de 2005 e novembro de 2006, no ...
Fábio Hideki Yamada   +2 more
doaj   +1 more source

Effect of parasitism on the relative condition factor of Astyanax bimaculatus (Characiformes: Characidae) a freshwater fish from Caatinga domain, Brazil [PDF]

open access: yes, 2022
The present study aimed to evaluate the effect of parasitism on the condition factor of Astyanax bimaculatus (Linnaeus 1758) (Characiformes, Characidae), in Batateiras river, Salgado river basin, northeastern Brazil.
Antunes, Dhenes Ferreira   +2 more
core   +2 more sources

PADRÕES CITOGENÉTICOS DE DUAS ESPÉCIES DE CICLÍDEOS DE BACIAS DO SEMI-ÁRIDO DO BRASIL: Crenicichla menezesi E Cichlasoma orientale [PDF]

open access: yes, 2014
A família Cichlidae é considerada um modelo para estudos de radiação adaptativa entre vertebrados. Contudo, dados citogenéticos com vistas ao entendimento da evolução cariotípica dessa família ainda são incipientes, sobretudo para espécies da região semi-
Berbel Filho, Waldir Miron   +2 more
core   +1 more source

Inventário Da Ictiofauna Da Bacia Do Rio Ivaí, Paraná, Brasil [PDF]

open access: yes, 2017
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)We compiled data on fish fauna of the Ivaí River basin from recent specialised literature, standardised sampling and records of species deposited in fish collections. There were 118 fish
Da Graça W.J.   +3 more
core   +3 more sources

Fish, Taquara river basin, northern of the state of Paraná, Brazil [PDF]

open access: yes, 2007
Taquara River is situated in an agriculturist region, on the northern portion of the Tibagi river basin, state of Paraná. Fish fauna was collected in five stretches of the Taquara River and in nine headwaters of its tributaries, in the period of May to ...
Galves, Wanner   +2 more
core   +2 more sources

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