Prey detection in a cruising copepod | Zendy

Sanne Kjellerup | Zendy; Thomas Kiørboe | Zendy

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Prey detection in a cruising copepod

Author(s) -

Sanne Kjellerup,

Thomas Kiørboe

Publication year - 2011

Publication title -

biology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.596

H-Index - 110

eISSN - 1744-957X

pISSN - 1744-9561

DOI - 10.1098/rsbl.2011.1073

Subject(s) - predation , copepod , biology , interception , zooplankton , ecology , predator , predator avoidance , crustacean

Small cruising zooplankton depend on remote prey detection and active prey capture for efficient feeding. Direct, passive interception of prey is inherently very inefficient at low Reynolds numbers because the viscous boundary layer surrounding the approaching predator will push away potential prey. Yet, direct interception has been proposed to explain how rapidly cruising, blind copepods feed on non-motile phytoplankton prey. Here, we demonstrate a novel mechanism for prey detection in a cruising copepod, and describe how motile and non-motile prey are discovered by hydromechanical and tactile or, likely, chemical cues, respectively.

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