Abstract

A comparative study of the nutrition of climbing perch Anabas testudineus (Bloch, 1792)–fed with granular food with positive buoyancy in the light (~100 lux), in darkness, and under infrared light (780–900 nm) has been performed. It is found that climbing perch can eat equally as well in darkness and under infrared light (37 and 30% of the feeding granules), albeit much worse than in the light (73% of the granules). The fish instantly reacted to the feed and began consuming it in the light, but they captured the first granules under infrared light only on average more than 2 min after the experiment started. This indicates that climbing perch have no visual reaction to food under infrared light.

中文翻译：

---

在黑暗中攀爬鲈鱼食食：在红外灯下观察

摘要

进行了对攀爬鲈鱼Anabas testudineus（Bloch，1792）的营养的比较研究，该食物由颗粒食物在光（〜100 lux），黑暗和红外线（780-900 nm）下具有正浮力所喂养。发现在黑暗中和在红外光下（占进食颗粒的37％和30％），攀爬的鲈鱼也能吃得一样好，尽管比在光照下（占73％的颗粒）差得多。鱼立即对饲料产生反应并开始在光下食用，但实验开始后平均仅在2分钟以上，它们就在红外光下捕获了第一批颗粒。这表明在红外线下，攀爬鲈鱼对食物没有视觉反应。