Gonad maturity stages of Metridia lucens in the Southern Ocean

Females were stained in a Borax carmin solution for the exam- ination of the gonad maturation. Four different developmental stag- es of gonads were determined according to...采用硼砂卡红（Borax carmin）染液对雌性个体进行染色，以检测其性腺（gonad）成熟度。根据……可确定四种不同的性腺发育阶段。