Evaluación del comportamiento agonístico de Palaemon elegans (Rathke, 1837) (Crustacea, Decapoda)

Agonistic interactions between pairs of rockpool shrimp (Palaemon elegans) increases with time, due to aggressive defence of food resources by the resident shrimp. However, this aggressiveness only increases up to a maximum value after 4 minutes of interaction, afterward aggressiveness decreases. In most of the cases the resident won the fight.