Department of Zoology, University of Toronto, M5S 1A1, Toronto, Ontario, Canada.
J Chem Ecol. 1991 Jan;17(1):161-6. doi: 10.1007/BF00994429.
Tests with female crayfish (Procambarus clarkii) confirm that conspecifics can be detected chemically. The subjects were more attentive in the presence of water from a stranger's tank than in the presence of water from their own tank. Animals with intact antennules performed this discrimination best, but animals with one intact inner ramus and one intact outer ramus also clearly responded. Conspecific chemical discrimination after loss of both inner or both outer rami was weak (trial 2) or absent (trial 1). The relevance of this outcome to previous conflicting reports on the use of antennules in sex and species discrimination in crayfish is discussed.
对雌性小龙虾（Procambarus clarkii）的测试证实，同种个体可以通过化学方式进行识别。在有陌生个体水箱水的情况下，小龙虾会比在有自身水箱水的情况下表现出更高的关注度。拥有完整触角须的动物在进行这种区分时表现最佳，但拥有一根完整内支和一根完整外支的动物也能明显做出反应。当内外支都缺失时，同种个体的化学识别能力较弱（试验 2）或不存在（试验 1）。该结果与之前关于小龙虾触角须在性别和物种识别中的使用存在相互矛盾的报告有关，这一结果对此进行了讨论。
