Journal
FISHERIES SCIENCE
Volume 71, Issue 2, Pages 314-319Publisher
JAPANESE SOC FISHERIES SCIENCE
DOI: 10.1111/j.1444-2906.2005.00966.x
Keywords
behavioral response; bluegill; crucian carp; emotional reactivity; goldfish; novel environment
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To investigate the emotional reactivity of fish in a novel environment, the swimway test was developed. The swimway apparatus consists of a shaded start chamber and an open, illuminated swimway. Fish were first introduced and habituated to the start chamber. A door partitioning the start chamber from the swimway was then opened, and behavioral responses of the fish in the apparatus were measured. By using the swimway test, behavioral responses to a novel environment of bluegill Lepomis macrochirus, crucian carp Carassius langsdorfii, and goldfish Carassius auratus were quantified and compared. The emotional reactivities in bluegill were found to be the lowest and crucian carp the highest, indicating bluegill are relatively active or 'bold', and that the crucian carp are relatively passive or 'shy', in a novel environment. It is suggested that the swimway test is applicable to examining inter-species differences in relative emotional reactivity or boldness in a simplified novel situation.
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