Department of Zoology, University of Toronto, M5S 1A1, Toronto, Ontario, Canada.
J Chem Ecol. 1992 Dec;18(12):2363-72. doi: 10.1007/BF00984955.
Chemical sex discrimination of conspecifics by male and female crayfish (Procambarus clarkii) was tested. Intact female subjects were more attentive in the presence of stimulus water from males than from females and showed more aggressive postures in the presence of stimulus water from females than from males. Intact males showed more aggressive postures in the presence of stimulus water from males than from females. Females and males with only one inner antennule ramus and one outer ramus performed discrimination and localization almost as well as intact subjects. Subjects with only the two inner rami or only the two outer rami were disadvantaged in either responding to the stimuli or localizing them. The relevance of this outcome to previous conflicting reports on the use of antennules in sex discrimination in crayfish is discussed.
对雄性和雌性克氏原螯虾（Procambarus clarkii）同种化学性性别识别进行了测试。完整的雌性个体在雄性刺激水存在的情况下更关注，而在雌性刺激水存在的情况下表现出更多的攻击性姿势。完整的雄性个体在雄性刺激水存在的情况下表现出更多的攻击性姿势。只有一个内触角分支和一个外分支的雌性和雄性个体在进行识别和定位时几乎与完整个体一样出色。只有两个内分支或只有两个外分支的个体在对刺激物做出反应或定位方面处于不利地位。讨论了这一结果与之前关于螯虾在性识别中使用触角的相互矛盾的报告的相关性。
