Results 191 to 200 of about 1,864 (206)

Skull osteology of the characid fish Astyanax mexicanus (Teleostei: Characidae)

2003
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Valdez-Moreno, Martha E, Contreras Balderas, Salvador   +1 more
openaire   +1 more source

A new species of glandulocaudine characid fish, Hysteronotus myersi, from Peru

1970
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Weitzman, Stanley H., Thomerson, Jamie E.   +1 more
openaire   +1 more source

Ontogenic diet shifts and scale-eating in Roeboides dayi, a Neotropical characid

Environmental Biology of Fishes, 1997
Scale feeding (lepidophagy) has been documented for a variety of Neotropical fish taxa, including the characid genus Roeboides. Ontogenetic differentiation of jaws and snout teeth allow larger Roeboides to remove scales, however, the less specialized tooth/jaw structure in Roeboides dayi, indicates that it may be a facultative scale feeder.
Christopher C. Peterson, Kirk O. Winemiller   +1 more
openaire   +1 more source

Reproductive biology of the characid dourado Salminus franciscanus from the São Francisco River, Brasil

Animal Reproduction Science, 2013
The neotropical characid Salminus franciscanus is an economically valuable migratory fish whose populations have been drastically reduced in recent decades due to industrial and economic development in Brasil. To study its reproduction, a total of 283 adult specimens were captured in the Upper São Francisco River, downstream from the Três Marias dam ...
Leonardo J A, Freitas, Paula S, Prado, Fabio P, Arantes, Kleber B, Santiago, Yoshimi, Sato, Nilo, Bazzoli, Elizete, Rizzo   +6 more
openaire   +2 more sources

Phosphoglucose isomerase isozymes in the characid fish Cheirodon axelrodi: Evidence for a spontaneous gene duplication

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1976
Abstract 1. 1. 132 specimens of the Characid fish Cheirodon axelrodi were examined for phosphoglucose isomerase (PGI) using starch gel electrophoresis 2. 2. Cheirodon axelrodi is endowed with two different PGI gene loci, both occurring in multiple alleles. 3. 3.
P, Kuhl, J, Schmidtke, C, Weiler, W, Engel   +3 more
openaire   +2 more sources

Creagrutus hysginus (Teleostei: Characiformes), a New Species of Characid from Northeastern Venezuela, Sucre State

Copeia, 1994
red adipose fin and the presence of dark pigment on only the lateral, unbranched ray of the pectoral fin. Other characters which, in combination, serve to distinguish C. hysginus include the presence of hooks on only the first two or three anal-fin rays, nine or 10 anal-fin rays, and a rounded or blotchlike humeral mark. Una nueva especie de Creagrutus
Antony S. Harold, Richard P. Vari, A. Machado-Allison, F. Provenzano   +3 more
openaire   +1 more source

Hyphessobrycon elachys, a new miniature characid from eastern Paraguay (Pisces: Characiformes)

1984
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Astyanax scologaster, a new characid (Pisces: Ostariophysi) from the Rio Negro, South America

1986
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Weitzman, Marilyn J., Vari, Richard P.
openaire   +1 more source

The glandulocaudine characid fishes of the Guayas basin in western Ecuador

1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Rhinobrycon negrensis, a new genus and species of characid fishes from the Rio Negro, Brazil

1944
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source