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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45619

Title: Can Copepods Differentiate Prey from Predator Hydromechanically
Authors: Jiang-Shiou Hwang
Rudi Strickler
Contributors: 國立臺灣海洋大學:生命科學系
Keywords: 亂流
哲水蚤
避敵反應
模式認知
Calanoids
Centropages hamatus
Random flow
Escape reactions
Pattern recognition
Date: 2001
Issue Date: 2018-03-29T01:58:31Z
Publisher: Zoological Studies
Abstract: Abstract: Copepods use hydromechanical signals to detect prey and predators. However, little is known about their ability to differentiate prey from predators, neither from random water flow. We used laser- and video-optical equipment with a modified Schlieren optical pathway to observe a tethered copepod under variable hydrodynamic conditions. The results suggest that the copepod can distinguish between hydromechanical signals generated by an external source and those created by its own feeding current, even when these disturbances are within a similar speed range, as defined by measurements of spatial displacement of suspended particles. The data suggests that planktonic copepods may use a simple form of pattern recognition to distinguish between sources of signals: predators, prey, or random flow.
Relation: 40(1)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45619
Appears in Collections:[海洋生物研究所] 期刊論文

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