"Personality" in the guppy (Poecilia reticulata): A correlational study of exploratory behavior and social tendency.

Abstract

Differences in the exploratory behavior and social tendencies of 29 guppies (Poecilia reticulata) in 2 domains of situations involving novelty and conspecincs were investigated. Consistent individual differences were found in most behavior patterns. Two behavioral dimensions (Activity Exploration and Fear Avoidance) were identified in the novelty situations. Likewise, 2 dimensions (Sociability and Locomotion) were found in the social situations. An analysis of relationships between these 2 test domains revealed the existence of even broader behavioral dimensions (Approach, governing exploration and social attraction, and Fear Avoidance, governing responses to aversive stimulation). Thus, it was shown that personality may represent an important behavioral category in the guppy provided it is defined precisely and objectively.

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