Mackerel, sardines, anchovies, squid, crab, and smelts are common in the yellowtail's diet. During the winter, the lake provides fishing for lake trout, whitefish, smelts, and burbot. They fished for salmon, trout, codfish and "grouper" (probably sea bass), and smelts. VALCO smelts alumina to produce aluminium ingots at its smelter at Tema. Smelts are a food source for many fish, including salmon, striped bass, and lake trout. The herring smelts or argentines are a family, Argentinidae, of marine smelts. Semelparity is also known to occur in some eels and smelts. The smelter smelts the copper concentrate mixed with silica in the Isasmelt furnace. The area is known to be rich in smelts, oyster beds, Atlantic salmon and cranberries. It is also home to some parasites including isopods and sand smelts including "Atherina boyeri". Fins, scales, and bones of all but the largest of smelts are cooked without removal. It is a relative of the smelts and other fish in the order Osmeriformes. Nansenia is a genus of pencil smelts. Slickheads or nakedheads are a family, Alepocephalidae, of marine smelts. The tubeshoulders are a family, the Platytroctidae, of marine smelts.