CAJ | 학술논문

采用组织学方法对细鳞鲴卵巢周年变化和卵母细胞发育进行了观察研究.结果表明,细鳞鲴卵巢发育分为6个时期,卵母细胞发育分5个时相,从第Ⅲ时相卵母细胞开始表现出种的特异性.3月卵巢处于产前发育阶段,4-7月为繁殖期,5-6月为繁殖盛期,8月卵巢基本修整完毕,9-10月为Ⅱ'期发育,11月至翌年2月以Ⅲ期卵巢越冬.细鳞鲴的产卵方式为短期分批同步产卵类型,在一个生殖周期内一般产卵2～3 次.
채용조직학방법대세린고란소주년변화화란모세포발육진행료관찰연구.결과표명,세린고란소발육분위6개시기,란모세포발육분5개시상,종제Ⅲ시상란모세포개시표현출충적특이성.3월란소처우산전발육계단,4-7월위번식기,5-6월위번식성기,8월란소기본수정완필,9-10월위Ⅱ'기발육,11월지익년2월이Ⅲ기란소월동.세린고적산란방식위단기분비동보산란류형,재일개생식주기내일반산란2～3 차.
Annual changes in ovaries and oocyte development were histologically observed in Xenocypris microlepis collected monthly in Daoguanhe Reservoir, Hubei Province from Autumn 2007 to August 2008. The development of the ovary underwent six consequent stages while oocytes had five phases, with species specificity from phase Ⅲ. The ovary was under the developing stage before spawning in March. The spawn occurred from April to July, and peaked in May and June. In late July and August, the ovary was in a stage of degeneration after spawning, and then it returned to stageⅡin September and October. From November to February of the following year, the ovary aws in stage Ⅲin the winter. A histological observation of the oocyte development showed that the fish was in a successive process and female seemed to be able to spawn twice, even three times, in one spawning season.