Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/122883
Título: Application of histology in reproductive biology of fisheries studies
Autores/as: García-Díaz, M.M.
Lorente, M.J.
González Pérez, José Antonio 
Tuset Andujar,Victor Manuel 
Clasificación UNESCO: 310502 Piscicultura
240110 Histología animal
Fecha de publicación: 2001
Conferencia: 14th International Congress of Comparative Endocrinology: Unity and Diversity 
Resumen: Analysis of gonad organization and development revealed that Serranus atricauda is a functional simultaneous hermaphrodite. The ovary is classified as asynchronous. Oocyte growth is divided into five stages: stage I (primary growth stage), stage II (yolk vesicle formation), stage III (vitellogenesis), stage IV (oocyte maturation) and stage V (mature egg). The testis is of the unrestricted or lobular spermatogonial type. Spermatogenic cells include spermatogonia, primary and secondary spermatocytes, spermatids (which form cysts in the seminiferous tubules) and spermatozoa (free in the lu men). The histological structure of the gonad and sperm morphology would seem to indicate that this species is an externally fertilizing teleost. The observation of several spermatozoa on a hydrated oocyte within the ovarian lumen suggests, for the first time in this genus, that ‘internal gametic association’ may occur.
URI: http://hdl.handle.net/10553/122883
Fuente: Proceedings of the 14th International Congress of Comparative Endocrinology: Unity and Diversity: Sorrento (Nápoles) , 26-30 de mayo de 2001, p. 1095-1100.
Colección:Actas de congresos
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