Diplodus argenteus behaviour as eavesdroppers
an interaction with scuba diving
Abstract
During January and October 2006 the fish species Diplodus argenteus was observed achieving a total of 32 hours effort. This study was taken in the south portion (sheltered) of Escalvada Island (20°41’S; 40°24’W), south region of Espírito Santo State, southern Brazil. The goal of this study was to describe the interaction between this species and SCUBA divers. Was observed that D. argenteus follows SCUBA divers until they approach nests of other fish species (Abudefduf saxatilis), where an individual protect the eggs. When this guardian moves away, frightened by the approximation of the diver, D. argenteus take advantage of the absence of the guardian and forage over the unprotected eggs. The description of this behaviour provide information to SCUBA diver centers to alert their costumers to conduct their activities according to conservations protocols in order to preserve the reef areas in the south of Espírito Santo.
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