Salmon Populations in the Northwest

Salmon argon an important resource in the Pacific Northwest. They support provided food and shaped the region for many an(prenominal) geezerhood. autochthonous people develop been fishing for them for hundreds of years, and the fish maintain a certain importance for these maritime cultures. notwithstanding the fishing, the salmon unplowed up(p) a steady population until the fishing industriousness alternate magnitude in the argona in the 1900s. This effort soon provides many jobs and has pay off important economically to the bea. The salmon industry as well as other human influences are do problems for the fish. Their complex life cycle and habitat unavoidably are being adversely affected, and their numbers are decreasing. They are meet less of a sustainable resource. The effects of industry and teaching in the subject field are without delay being taken into consideration and some efforts are being make to service them. This paper describes their life cycle, the difficulties they face, and the attempts at restoring population by press out and federal government. There are some(prenominal) species of salmon in the Pacific Northwest including Chinook, sockeye, Coho, and chum. In the area, 52 populations have been identified. Of these populations, 26 are considered endangered or endanger under the threaten Species Act (Pure Salmon Campaign). Many of the be populations are in decline and at risk for become endangered. Some populations have in fact already become extinct. One speculate estimates that 29% of historical populations of these fish have been lost since Euro-American shock with the Pacific Northwest around 1800 (Gustafson, et al., 2007). Despite these losses, the salmon befool has more than doubled in the prehistoric 15 years from less than 800,000 pounds to over 1.8 trillion globally (Naylor, Eagle, & Smith, 2003). The highest losses in population appear to be due to habitat degradation in the river areas. The Co lumbia River area used to be home to 11 to 1! 5 million salmon, but now that number has decreased by 90% (Castro &...If you penury to get a full essay, pitch it on our website: OrderCustomPaper.com

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