Among the many kinds of fish harvested each year by commercial fisheries is the

Oncorhynchus tshawytscha or Chinook salmon. The United States catches an

averages of about three hundred million pounds of salmon each year. However

some Chinook salmon have been recently listed as threatened. Man has been the

main cause for the decline in Chinook salmon populations.

The populations of Chinook salmon have declined for several reasons. Hydropower

and it's destructiveness to the environment, pollution, and overfishing are the

three main causes for the decline. The Chinook salmon is known for traveling

the greatest distance back to its spawning grounds, often traveling one to two

thousand miles inland. This long journey is now often interrupted by

hydroelectric plants. Hydropower is

many Chinook salmon. Pollution caused by sewage, farming, grazing, logging and

spawning habitat, by improving the general management. They would also like to

salmon is very severe, any are labeled as threatened. We can reduce the causes

commercial fishing industry. From a period of 1990-1992 815,000 Chinook salmon

The hydropower plant's turbines are also very dangerous to young salmon. Many

however it is very damaging to our salmon populations. The dams block off

United States is about 300 million pounds, of that about 60 percent is canned.

way to their spawning grounds. The average annual salmon catch in just the

develop alternative harvesting methods.

The effects that man has had on the Chinook salmon and many other species of

Some common words found in the essay are:
Science February, Fisheries Service, Fish Wildlife, chinook salmon, decline chinook salmon, decline chinook, breeding grounds, breeding grounds salmon, commercial fishing industry, commercial fisheries, fishing industry, commercial fishing, salmon plan, salmon populations, salmon population, spawning grounds,
Approximate Word count = 587
Approximate Pages = 2 (250 words per page double spaced)