Japanese pygmy squid (Idiosepius paradoxus) use ink for predation as well as for defence
Japanese pygmy squid (Idiosepius paradoxus) use ink for predation as well as for defence
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日本侏儒乌贼（Idiosepius paradoxus）使用墨水进行捕食和防御
DOI：
10.1007/s00227-016-2833-y
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发表时间：
2016
期刊：
影响因子：
2.4
通讯作者：
Kasugai T
中科院分区：
文献类型：
--
作者：
Sato N;Takeshita F;Fujiwara E;Kasugai T
墨迹是头足类动物的防御策略之一。通过观察日本侏儒乌贼对三种甲壳类捕食行为的观察，我们发现墨汁也被用于捕食。在322次试验中，观察了17次捕食过程中的墨水行为。鱿鱼在墨迹后成功攻击猎物13例(8次试验)。针刺试验5次，P。农奴)。墨水从未被用来攻击N。中介人认为这是最常被捕获的猎物。攻击过程中墨水的使用可以分为两种类型：(1)鱿鱼在自己和猎物之间释放墨水，然后通过墨水云攻击；(2)鱿鱼从猎物那里释放墨水，然后从另一个方向攻击。墨水攻击的成功率在被墨水攻击的两个猎物物种之间存在显著差异。
Inking is one of the defensive tactics in cephalopods. By observing the predatory behaviours of Japanese pygmy squid (Idiosepius paradoxus) towards three crustacean prey species (Neomysis intermedia,Latreutes acicularis, andPalaemon serrifer), we found that ink is also used for predation. Inking behaviour during predation was observed 17 times in 322 trials. Squid successfully attacked prey after inking in 13 cases (8 trials withL. acicularisand 5 trials withP. serrifer). Ink was never used to attackN. intermediadespite the fact that this was the most commonly captured prey. Ink use during attacks can be divided into two types: (1) squid release ink between themselves and the prey and then attack through the ink cloud, and (2) squid release ink away from the prey and then attack from another direction. The success rate of ink attacks differed significantly between the two prey species on which ink attacks were made.