Fish farming at the industrial scale has been growing as more fish stocks become depleted. Some fish are farmed at an industrial level because production costs are low or market values are high. Due to the high costs of feeds, especially for carnivorous species, industrial aquaculture has been dominated by filter feeding and grazer species. As wild stocks of high value carnivorous species (such as salmon, shrimp and tuna) continue to fall, farming these species to meet increasing demand is becoming more profitable.