Results 81 to 90 of about 1,671 (171)

Nuclear DNA content determination in Characiformes fish (Teleostei, Ostariophysi) from the Neotropical region

Genetics and Molecular Biology, 2002
In the present study, nuclear DNA content was analyzed in 53 species of Characiformes fish from the Neotropical region. Diploid number ranged from 2n = 48 in Astyanax fasciatus, Gymnocorymbus ternetzi and Hyphessobrycon griemi to 2n = 102 in Potamorhina ...
Margarida Lima Carvalho, Claudio Oliveira, Maria Clara Navarrete, Otávio Froehlich, Fausto Foresti   +4 more
doaj   +1 more source

Fauna parasitária de peixes oriundos de “pesque-pague” do município de Guariba, São Paulo, Brasil = Parasitic fauna of cultivated fishes in fee fishing farm of Guariba, São Paulo State, Brazil

Acta Scientiarum: Biological Sciences, 2006
Este trabalho descreve a ocorrência e a sazonalidade de parasitos em peixes de “pesque-pague” do município de Guariba, Estado de São Paulo, Brasil (21o15`22``S, 48o18`58``W e 595 m de altitude), durante o período de agosto de 2001 a julho de 2002.
Sergio Henrique Canello Schalch, Julieta Rodini Engracia de Moraes, Flávio Ruas de Moraes   +2 more
doaj  

Nomenclatural note on the genus Nans (Ostariophysi, Characidae)

Revue suisse de zoologie, 2006
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Juan Marcos Mirande, Gastón Aguilera, María de las Mercedes. Azpelicueta   +2 more
openaire   +2 more sources

Feeding dynamics and ecomorphology of Oligosarcus jenynsii (Gunther, 1864) and Oligosarcus robustus (Menezes, 1969) in the Lagoa Fortaleza, southern Brazil

Brazilian Journal of Biology
Oligosarcus jenynsii and Oligosarcus robustus are fishes of Characidae family that occur in Rio Grande do Sul, Uruguay and northern Argentina. This work purported to study the feeding dynamics (repletion and hepatosomatic indexes and condition factor ...
D. M. Nunes, S. M. Hartz
doaj   +1 more source

THE CONSERVATION STATE OF CHARACIDAE FISH (PISCES: CHARACIFORMES) IN AN AREA OF THE PLATA BASIN, ARGENTINA ESTADO DE CONSERVACION DE PECES CHARACIDAE (PISCES: CHARACIFORMES) EN UN AREA DE LA CUENCA DEL PLATA, ARGENTINA

Gayana, 2007
The fish conservation was quantified by means of the index SUMIN, composed by the summation of 12 outstanding variables for the species survival and/or conservation.
Marcelo A Zayas, Elly Cordiviola
doaj  

INFESTAÇÃO AGUDA POR Henneguya sp (PROTOZOA, MIXOSPOREA) E DACTYLOGYRIDAE (PLATYHELMINTHES, MONOGENEA), EM PACU, Piaractus mesopotamicus (HOLMBERG, 1887) (OSTEICHTHYES, CHARACIDAE)

Boletim do Instituto de Pesca, 2018
Descreve-se uma infestação aguda por Henneguya sp (Protozoa, Myxosporea) e Dactylogyridae (Platyhelminthes, Monogenea) em pacu, Piaractus mesopotamicus Holmberg, 1887 (Osteichthyes, Characidae), ao ní­­vel das brí­¢nquias, que apresentaram cistos ...
Agar Costa ALEXANDRINO, Maria José Tavares RANZANI-PAIVA, Carlos Massatoshi ISHIKAWA, Sarah ARANA, José MANDELLI JUNIOR, Augusta Cocuzza das EIRAS   +5 more
doaj  

On a remarkable sexual dimorphic trait in the Characiformes related to the olfactory organ and description of a new miniature species of Tyttobrycon Géry (Characiformes: Characidae).

PLoS ONE, 2019
Among the order Characiformes, secondary sexual dimorphism is commonly associated to the occurrence of bony hooks on fins, shape and length of the dorsal and anal fins, and sexual dichromatism.
Vitor Pimenta Abrahão, Murilo Pastana, Manoela Marinho   +2 more
doaj   +1 more source

Primer registro del género Roestes Gunter, 1984 (Pisces: Characidae) para Colombia

Caldasia, 1997
Este estudio registra por primera vez para Colombia, la presencia del género Roestes en lagunas pertenecientes al plano de inundación de ríos de la cuenca alta del río Caquetá.
Prada Pedreros Saúl
doaj  

Les Cheirodontinae (Characidae, Ostariophysi) du Paraguay

Revue suisse de zoologie., 1987
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Filogenia de Astyanax (Characiformes: Characidae)

, 2019
Fundación Miguel ...
Teran, Guillermo Enrique, Benitez, Mauricio Fabián, Mirande, Juan Marcos   +2 more
openaire   +1 more source