Red-black Triplefin

Overview

The Red-black Triplefin is a small, non-migratory fish recognized by its three distinct dorsal fins. It is a resident species commonly found in shallow coastal environments, where it exhibits territorial homing behavior. This species is widely distributed throughout the Mediterranean and Black Seas.

Distribution & habitat

This species inhabits shallow, rocky coastal waters. It is typically found in areas with rocky substrates, often occupying light-exposed biotopes within the intertidal zone.

Biology & behavior

As a resident species, the Red-black Triplefin maintains a specific home range. It is known for its homing behavior, returning to its established territory. The species is demersal, spending most of its time near the sea floor.

Feeding

This fish is a predator that feeds primarily on benthic invertebrates found in its rocky environment.

Reproduction

During the reproductive cycle, the species lays hemispherical eggs. These eggs are equipped with numerous sticky threads that allow them to securely anchor to algae at chosen nesting sites. Following hatching, the larvae are planktonic and primarily inhabit shallow, nearshore waters.