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").
Sex for Fish Sex for Fish Sex for Fish sometimes referred to as "Fish for Sex" is a phenomenon in which female traders engage in sexual relationships with fishermen to secure their supply of fish. The women fish traders are often pressured into having sex with the fishermen who supply them with daily fresh fish. Along the beaches where the sex for fish practices have been observed, the fishermen do maintain several transactional sexual relationships with women at different beaches where they land with their fish. Sex for Fish as a phenomenon is common in many low and middle income developing countries; however,