Chinook Salmon

- - Environmental Science Wednesday, February 26, 1997 king pinkish-orange Salmon Among the some kinds of search harvested separately year by mercenary fisheries is the Oncorhynchus tshawytscha or chinook salmon chromatic. The United States catches an averages of about three hundred million pounds of salmon each year. However some Chinook salmon initiate along with to been recently listed as threatened. Man has been the principal(prenominal) cause for the wane in Chinook salmon populations. The populations of Chinook salmon devour declined for several reasons. Hydropower and its destructiveness to the environment, pollution, and over seek argon the three main causes for the decline. The Chinook salmon is known for traveling the greatest blank space back to its spawning grounds, often traveling superstar to two kelvin miles inland. This long journey is now often interrupted by hydroelectric plants. Hydropower is a very good alternative penchant for power, however it is very damaging to our salmon populations. The dams block confound rivers, which block the salmons path back to their breeding grounds. The salmon go back to the same aras, just as their ancestors did, to lay their eggs. The hydropower plants turbines ar withal very dangerous to young salmon. Many of them are refineed by the giant turbines on their way back to the ocean. violent death off many of the salmons in the altogether generation.

Pollution is overly a killer of many Chinook salmon. Pollution caused by sewage, farming, grazing, logging and mining find its way into our waters. Thes e harmful substances kill many species of fi! sh and other marine life. The Chinook salmon is no exception. The chemicals are dumped into the rivers and streams and eventually these chemicals find their way to the ocean, polluting and effecting each area they pass through. The largest contributor to the decline in the Chinook salmon population is the commercial fishing industry. From... If you want to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper