Gametogenic cycle of Mesodesma donacium in Cucao, Chile, 2000

Gonad stage: Percentage (%N) of male or female clams in each of the following gonad stages: early mature; advanced maturity; mature; early regresion; final regresion....性腺发育期（gonad stage）：按个体数百分比（%N）统计的雄性或雌性蛤蜊在以下各性腺发育阶段的占比：初熟期（early mature）、成熟晚期（advanced maturity）、成熟期（mature）、早期退化期（early regresion）、终末退化期（final regresion）……