Consulta: creatorFacets:"Zupa, R."
Registros recuperados: 2
Data/hora: 02/06/2024 09:08:01

Rearing in captivity affects spermatogenesis and sperm quality in greater amberjack, (Risso, 1810)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Zupa, R.; Fauvel, Christian; Mylonas, C. C.; Pousis, C.; Santamaria, N.; Papadaki, M.; Fakriadis, I.; Cicirelli, V.; Mangano, S.; Passantino, L.; Lacalandra, G. M.; Corriero, Aldo.
The greater amberjack, Seriola dumerili (Risso, 1810), is a promising candidate for the diversification of European aquaculture production, but inconsistent reproduction in captivity prevents commercial production. Recent studies showed that greater amberjack confined in sea cages exhibited scarce gonad development and early interruption of gametogenic activity during the reproductive season. The aim of the present study was to improve our understanding of the observed impairment of spermatogenesis. Adult wild and captive-reared males were sampled during 3 different phases of the reproductive cycle: early gametogenesis (EARLY; late April to early May), advanced gametogenesis (ADVANCED; late May to early June), and spawning (SPAWNING; late June to July)....
Tipo: Text
Palavras-chave: Germ cell apoptosis; Germ cell proliferation; Greater amberjack; Rearing in captivity; Seriola dumerili; Sperm quality.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00395/50613/55414.pdf

Comparative analysis of male germ cell proliferation and apoptosis in wild and captive Atlantic bluefin tuna (Thunnus thynnus L.)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Zupa, R.; Fauvel, Christian; Mylonas, C. C.; Santamaria, N.; Valentini, L.; Pousis, C.; Papadaki, M.; Suquet, Marc; De La Gandara, F.; Bello, G.; Metrio, G.; Corriero, A.
The most commonly observed reproductive dysfunction in male fishes reared in captivity is reduction in sperm volume and quality. The Atlantic bluefin tuna Thunnus thynnus (Osteichthyes: Scombridae) is one of the few large pelagic and migratory marine fishes maintained in captivity with the purpose of establishing breeding populations to support an aquaculture industry. The objectives of the present study were to compare male germ cell proliferation and apoptosis between wild and captive individuals at two different phases of the spermatogenetic cycle, and to evaluate sperm motility characteristics of captive individuals. Histological observations were performed to analyze testicular activity, and germ cell proliferation and apoptosis were evaluated through...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00125/23579/25462.pdf