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发光器

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长帆鱿英语Histioteuthis reversa,身上具有许多发光器
头足纲发光器的垂直剖面图

发光器(英文:Photophore),又称发光腺体,为在许多鱼类头足纲物种身上可以发现形似光点的腺器官。不同物种的发光器构造差异甚大,可以为简单的构造,但也能与人眼一样复杂:例如萤火鱿的发光器就包含了水晶体、快门、滤色器、反射器等构造[1]生物发光的来源有许多种,包括在消化时所产生的化学物质、组织中特化的线粒体光细胞英语photocytes)或是共生细菌

发光器的型态与排列时常是深海鱼物种辨认的重要依据。这些发光器多半用来吸引猎物或是形成消光剪影来躲避掠食者的攻击。

参见

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参考文献

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  1. ^ Cephalopod Photophore Terminology. Tolweb.org. [2012-08-30]. (原始内容存档于2019-01-26). 
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发光器
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