Bastard Grunt

Overview

The Bastard Grunt (Pomadasys incisus) is a subtropical, demersal fish species belonging to the Haemulidae family. Known for its ability to produce grunting sounds, this species is widely distributed across the Eastern Atlantic and has established populations in the Mediterranean Sea.

Distribution & Habitat

This species is found in the Eastern Atlantic, ranging from Spain and the Canary Islands down to Angola, and is also present in the Mediterranean. It typically inhabits coastal waters over both hard and sandy bottoms. As the fish reaches sexual maturity, it often enters estuaries and lagoons.

Appearance

The Bastard Grunt has an oblong, compressed body with a short snout that is roughly equal to its eye diameter. Its coloration features a dark brown back that transitions to a silvery-white belly. While some individuals may display large dark spots on their flanks and back, they lack the small spots or bands seen in related species. A distinct black spot is located at the upper angle of the opercle, and the fins are typically yellow or orange.

Biology & Behavior

This thermophilic species is relatively short-lived, with a maximum reported age of about seven years. It is a fast-growing fish that reaches sexual maturity toward the end of its second year. Spawning occurs throughout the year in some regions, though it may be more seasonal in others. The Bastard Grunt is known for its social nature, often forming schools of varying sizes.

Feeding

The Bastard Grunt is a bottom-feeder, primarily consuming invertebrates found on or near the seafloor.