Acoustical behavior in king crab (Paralithodes camtschaticus)

Acoustical behavior in king crab (Paralithodes camtschaticus)

L.K. Tolstoganova

Acoustical behavior in king crab (Paralithodes camtschaticus)This is part of Crabs in Cold Water Regions: Biology, Management, and Economics
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Aquarium observations on crab acoustical activity demonstrated that several crab species produced intensive acoustic signals during feeding as well as while they endured unfavorable environmental conditions.

Feeding sounds of their own species, as well as an imitation of these sounds emitted by a transducer, increased movements of the king crab (Paralithodes camtschaticus). Some king crabs directly approached the sound source. Other sounds, including feeding sounds of different crab species, did not provoke discernable king crab reactions.

Numerous aquarium experiments on the king crab’s reactions to
emission of various natural king crab feeding sounds and their imitations have allowed determination of signal parameters for attracting king crab. Precise duplication of signals resulted in the development of an acoustic crab lure (ACL). Fishing experiments proved that the ACL attracts king crab.

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