Norway bullhead


The Norway bullhead is a coastal fish of the family Cottidae, found in Northern Europe.

Description

The Norway bullhead is a small fish that only grows to 7.4 cm in length. It has a row of bony knobs above the rough lateral line.
It feeds on small crustaceans and fishes. It spawns in early spring, laying demersal eggs, in clumps on bottom, diameter 2 mm. Larvae are pelagic. A population of Norway bullhead is capable of doubling its numbers in under fifteen months.

Habitat

It is found on hard sea bottoms or among seaweeds, in cold areas – even with temperatures below 0 °C. It feeds on small fish, amphipods and other crustaceans.