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").
Latin Grammy Award for Best Grupero Album Latin Grammy Award for Best Grupero Album The Latin Grammy Award for Best Grupero Album was first handed to Los Temerarios during the 1st Latin Grammy Awards ceremony which took place at the Staples Center in Los Angeles, California under the name of Best Grupero Performance. In 2002 it was named Best Grupero Album and was last handed out in 2009 to group Caballo Dorado. The male "Grupero artist" with the most wins and nominations is Joan Sebastian, with two nominations and both wins. The female "Grupero artist" with the most nominations and wins is Ana Bárbara, with 4 nominations