Macrourus berglax shrimps, amphipods, polychaete worms, bivalve molluscs, isopods, brittle stars, other echinoderms and comb jellies. The roughhead grenadier is a slow growing fish. The females mature at an age of about 14 years and a length of while males reach maturity at a length of . The potential fecundity of the female is 17,000 to 56,000 eggs. The eggs are laid in batches and spawning takes place at any time of year, with a peak in late winter and early spring. The roughhead grenadier is landed as a by-catch when fishing for Greenland halibut ("Reinhardtius hippoglossoides") and Atlantic halibut ("Hippoglossus hippoglossus").
The Fisherman and the Little Fish The Fisherman and the Little Fish The Fisherman and the Little Fish is one of Aesop's fables. It is numbered 18 in the Perry Index. Babrius records it in Greek and Avianus in Latin. The story concerns a small fry caught by a fisherman (or "angler") that begs for its life on account of its size and suggests that waiting until it is larger would make it a more filling meal. The fisherman refuses, giving as his reason that every little amount helps and that it is stupid to give up a present advantage for an uncertain future gain. The