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The development and behavioral characteristics of the startle response in the zebra fish
Author(s) -
Kimmel Charles B.,
Patterson Jill,
Kimmel Richard O.
Publication year - 1974
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420070109
Subject(s) - startle response , mauthner cell , larva , escape response , hatching , biology , ichthyoplankton , stimulation , fish <actinopterygii> , zoology , neuroscience , ecology , fishery
The behavioral responses of developing larvae of the zebra fish ( Brachydanio rerio ) to vibratory stimulation are described. Larvae begin to respond after 4‐5 days from the time of fertilization (the approximate time of hatching). Once this response appears, the characteristic movement, the latency of the response, and the sensitivity of the larva to sound do not change for a period of several days. A number of related behavioral changes are observed at the same time the response to sound appears. The larval startle response is a characteristic pronounced tail flip. It is very similar to the adult startle response which is believed to be mediated via Mauthner's neuron. The data suggest that the usual response may be due to a wave of muscular contractions along one side of the larva, as would be expected to result from an action potential in a Mauthner cell. More complex responses were also observed and are described.