Cleaning symbiosis provides a positive reinforcer for fish.
Chaetodon auriga, a conun7won marine fish in Hawaii, can be conditioned by presentation of a moving model of a cleaner fish as a positive reinforcement on an instrumental schedule. Reinforcement is probably through tactile stimulation and might help to shape the response of fish to cleaners. Tactile stimulilation night serve as a valuable reinforcer in studies of fish learning.
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Margules
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