INFLUENCE OF STARVATION ON LARVAL DEVELOPMENT OF CARCINUS-MAENAS L (DECAPODA, PORTUNIDAE)
INFLUENCE OF STARVATION ON LARVAL DEVELOPMENT OF CARCINUS-MAENAS L (DECAPODA, PORTUNIDAE)
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DOI：
10.1016/0022-0981(84)90093-5
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发表时间：
1984-01-01
影响因子：
2
通讯作者：
DAWIRS, RR
中科院分区：
文献类型：
--
作者：
DAWIRS, RR
在 C. maenas L 幼虫中研究了特定饥饿事件的致死和亚致死影响。连续饥饿的 zoaee-1 的平均存活时间大约是正常阶段持续时间（12°C、18°C、25°C）的两倍，并且两者都随着温度下降而增加。 6度时。 C zoea-1 无法发育至第 2 阶段。如果幼虫在阶段持续时间的一半时间内挨饿然后再进食，则没有幼虫能够保留成功进一步发育的能力。 zoea-1 幼虫必须进食至少 20% 的正常阶段持续时间，一些幼虫才能蜕皮为 zoea-2。为了开始 zoea-1 的发育，需要进行一些初始喂养。超过一定的能量和储备积累点后，无论摄食率如何，幼虫的发育似乎都会继续。对幼虫摄食的需求与幼虫蜕皮周期非常吻合。事实证明，C. maenas 的幼虫能够很好地适应食物的自然短缺。
Lethal and sublethal effects of particular starvation events were investigated in larvae of C. maenas L. Mean survival times of continuously starved zoeae-1 were approximately twice the normal stage duration (12.degree., 18.degree., 25.degree. C), and both increased with falling temperatures. At 6.degree. C zoea-1 was unable to develop to stage-2. No larva retained the ability for successful further development if starved for half the stage duration time and was then refed. The zoea-1 larvae had to feed for at least 20% of the normal stage duration for some larvae to molt to zoea-2. Some initial feeding was necessary to start zoea-1 development. Beyond a certain point of energy and accumulation of reserves development of the larvae seems to continue regardless of feeding rates. The demands for larval feeding correspond very well with the larval molting cycle. Larvae of C. maenas proved to be well adapted to natural shortage of food.