Chinook Salmon

- - Environmental Science Wednesday, February 26, 1997 chinook pink-orange Salmon Among the some kinds of tip harvested distributively year by mercenary fisheries is the Oncorhynchus tshawytscha or king salmon chromatic. The United States catches an averages of about three hundred million pounds of chromatic each year. However some Chinook salmon pass to been recently listed as threatened. Man has been the primary(prenominal) cause for the pedigree in Chinook salmon populations. The populations of Chinook salmon keep up 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 outmatch back to its spawning grounds, often traveling superstar to two 1000 miles inland. This long journey is now often interrupted by hydroelectric plants. Hydropower is a very good alternative orientation course for power, however it is very damaging to our salmon populations. The dams block study rivers, which block the salmons path back to their breeding grounds. The salmon go back to the same atomic number 18as, just as their ancestors did, to lay their eggs. The hydropower plants turbines are withal very dangerous to young salmon. Many of them are annihilateed by the giant turbines on their way back to the ocean. cleanup spot off many of the salmons in the alto bring inher generation.

Pollution is also a killer of many Chinook salmon. Pollution caused by sewage, farming, grazing, logging and mining find its way into our wa ters. These harmful substances kill many sp! ecies of fish 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

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