Cuttlefish

Photo: Nadine Walter-Minauf · CC BY-NC

Common cuttlefish aggregate in Žanjice Bay between April and June to mate and lay egg clusters on posidonia rhizomes and rocky outcrops, making spring the most spectacular time to visit. Males display elaborate chromatophore ripples across their mantle to compete for females, producing hypnotic colour waves visible from several metres away. After spawning, adults die, leaving juveniles that spend the summer feeding intensively on shrimp and small fish in the shallows.