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").
Pine Flat Lake irrigation and groundwater recharge, recreation, and with the completion in 1984 of the Jeff L. Taylor Pine Flat Power Plant, generation of 165 MW hydroelectric power. The lake is a popular regional tourist destination for water-based recreation. The U.S. Army Corps of Engineers, Sacramento District manages the land around the lake and offers several recreation areas and wildlife management areas. The following recreation and wildlife areas help lake visitors experience Pine Flat Lake: The fisheries are managed and stocked by the California Department of Fish and Wildlife, common fish species include: large and smallmouth bass, spotted bass, rainbow trout, king