Shrub thickets occur along some drainages. Saltwater bays provide habitat for Aleutian terns and harlequin ducks. Shoreline rocks and cliffs support black-legged kittiwakes, horned and tufted puffins, black oystercatchers, and common murres. The Kodiak brown bear is the world's largest carnivore. Steller sea lions are common in coastal waters around Kodiak Island.
Arctic char are the most widely distributed resident or anadromous fish on Kodiak Island.
Other native species include steelhead and rainbow trout. The growing season lasts approximately from May 10 to September 30 in low-lying areas. Killing frosts can occur any day of the year at higher elevations. Surface Water Characteristics. Glacially fed streams are short and steep and many are less than 10 miles long.