Observations on the seasonal breeding biology and fine structure of the egg surface in the white piranha Serrasalmus brandtii from the São Francisco River basin, Brazil.
J Fish Biol
; 75(7): 1874-82, 2009 Nov.
Article
en En
| MEDLINE
| ID: mdl-20738655
ABSTRACT
In the Juramento Reservoir, south-eastern Brazil, the white piranha Serrasalmus brandtii showed a prolonged reproductive season, with evidence for multiple spawning and a reproductive peak associated with seasonal rains. The egg surface exhibited a honeycomb-like pore canal arrangement and an adhesive apparatus surrounding the micropyle. Electron microscopic analysis suggests a role for the micropylar cell and neighbouring follicular cells in secretion of substances for egg attachment.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Óvulo
/
Estaciones del Año
/
Cruzamiento
/
Peces
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Fish Biol
Año:
2009
Tipo del documento:
Article
País de afiliación:
Brasil