"Dead Zone"
One of the reasons the lake cannot support many fish is because of severe pollution from phosphorus, nitrogen and ammonia. The phosphorus, nitrogen and ammonia collect in the lake water and the lake bed from polluted streams that run into the lake after passing through farm fields, barnyards and subdivisions.
As it is now, the 2.4-mile (3.9 km)-long lake is murky. The sun warms the top layer of lake water and makes it suitable for warm-water fish such as bass, bluegill and perch. The plants clog the surface of the lake to a depth of about 18 feet (5.5 m), so no oxygen from the air can penetrate to the deep, cold water at the bottom. The visibility of the lake is usually less than 1-foot (0.30 m). It has very green murky water.
As the undesirable plants die, their leaves sink to the bottom, where they decay, using up still more oxygen, making the colder depths barren and lifeless. The Washington Department of Fish and Wildlife makes the lake more fishable by planting brown or rainbow trout, but few survive year to year.
Read more about this topic: Lacamas Lake
Famous quotes containing the words dead and/or zone:
“Wild Bill was indulging in his favorite pastime of a friendly game of cards in the old No. 10 saloon. For the second time in his career, he was sitting with his back to an open door. Jack McCall walked in, shot him through the back of the head, and rushed from the place, only to be captured shortly afterward. Wild Bill’s dead hand held aces and eights, and from that time on this has been known in the West as “the dead man’s hand.””
—State of South Dakota, U.S. public relief program (1935-1943)
“He who, from zone to zone,
Guides through the boundless sky thy certain flight,
In the long way that I must tread alone,
Will lead my steps aright.”
—William Cullen Bryant (1794–1878)