Histological assessment of gonad maturation in Labeo parvus (Teleostei: Cyprinidae) in Benin

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AuteurMONTCHOWUI, HOUNNON ELIE
AuteurLALEYE, PHILIPPE A
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2012
ResumeA histological analysis was undertaken on the gonad development of Labeo parvus Boulenger 1902, a medium-sized cyprinid from the Ouémé River, Benin. Samples were collected monthly between April 2006 and March 2007 and were examined using routine macroscopic and histological techniques. Five macroscopic stages of gonad maturation were identified in the ovaries and testes and described histologically. Oocyte development was subdivided into five stages, based on the presence of chromatin nucleolus oocytes, perinucleolus oocytes, yolk vesicle oocytes, vitellogenic oocytes and mature oocytes. Four stages of spermatogenesis (spermatogonia, spermatocytes, spermatids and spermatozoa) were observed. Comparisons of macroscopic and histological observations revealed that the temporal patterns of maturation activity obtained from visual examination closely reflected the seasonal histological trend in gonad development. Histological characteristics of spent ovaries and testes were similar to those of immature fish, indicating that L. parvus were synchronous iteroparous spawners.
Autre identifiantBECDB-3197
URIhttps://dspace.uac.bj/handle/123456789/3176
Languefr
Fait partie deAfrican journal of aquatic Science, 37:2, 155-163
Sujetgametogenesis
Sujetmaturation rhythm
Sujetoocyte development
Sujetovaries
Sujetreproduction
Sujettestes
TitreHistological assessment of gonad maturation in Labeo parvus (Teleostei: Cyprinidae) in Benin
TypeArticle

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