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首页> 外文期刊>Journal of Natural History: An International Journal of Systematics and General Biology >Thanatosis in freshwater anomurans (Decapoda: Aeglidae)
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Thanatosis in freshwater anomurans (Decapoda: Aeglidae)

机译：淡水无尾目动物的畸形（十足目：盾蛾）

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摘要

The present study evaluated the occurrence of thanatosis in freshwater crustaceans. The duration of the thanatosis events was compared with respect to photoperiod and size for Aegla longirostri (Brazil) and Aegla denticulata denticulata (Chile). Adults of A. longirostri did not show thanatosis; juveniles were responsive only when they were out of water. In the two species, thanatosis occurred in both light and dark photophases, and there was no significant difference in the duration of the events between the photophases. For A. d. denticulata, which lives in deep waters and in sympatry with larger decapods, this behaviour seems to represent an adaptation either to the environment or to the biotic community of the species. This behaviour is apparently not necessary for adults of A. longirostri, since this species is mainly nocturnal in its adult phase and its activity rhythms do not coincide with those of its potential predators.
机译：本研究评估了淡水甲壳动物中甲藻的发生。比较了埃及蛤osis和巴西蛤eg的光周期和光周期和大小的持续时间。 A. longirostri的成虫未显示出甲减。少年只有在没水的时候才会做出反应。在这两个物种中，光明和黑暗光相中都发生了at灭，并且在光相之间事件的持续时间没有显着差异。对于A. d。生活在深水区并与大型十足动物共生的牙本质，这种行为似乎代表着对环境或物种生物群落的适应。这种行为显然对于长杆拟南芥的成虫不是必需的，因为该物种在成年期主要是夜行性的，并且其活动节律与其潜在掠食者的活动节律不一致。

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