Common name: Brook trout. Native. ID: Long body. Mouth that extends past the eye. Can be olive, blue-gray, or black above with a silvery white belly and wormlike markings. Some red marks with bluish halo. Lower fins black with orange. Male get very red-orange during spawning. Tail fin square or barely forked. Found in: cool, clear spring fed streams and pools. Under rocks, logs, banks. Somewhat stationary. Temperature 57-60 F degrees. Life cycle: Spawn during October or November. Gravel in streams, seepage areas, lake shores or deep bottoms with seepage. Femals made 1-2 feet spawning beds in gravel. Lay 100-400 eggs, cover them. Eggs must get oxygen constantly, which is why they seek areas with seepage for spawning. Incubate in 2-3 months. Mature in 2-3 years; average life span of 6 years. Great lake brook trout or coasters can attain larger sizes up to 25 inches and 10 pounds. Food source: Eat a lot. Large numbers of zooplankton, crustaceans, worms, fish, terrestrial insects, and aquatic insects. Feed on whatever is available.