99,000 Essays & Term Papers: Where You Buy Essays and Papers Online
Direct Essays, Where You Can Buy Essays and Papers Online

Instant Access to Buy Essays and Papers Online!
Acceptable Use Policy
Customer Service
Site Search


Login to View Essays and Papers Online

Join Now - Instant Access to Essays and Research Papers!

  Essay and Research Paper Topics
Acceptance Essays
Arts Essays
Custom Essays
English Literature Essays
Foreign
History Essays
Miscellaneous Research Papers and Essays
Movie Essays and Papers
Music Term Papers
Novels
People and Biography Research Papers
Politics Research Papers
Religion Research Papers
Science Essay Topics
Sports Research Papers
Technology Research Papers
 
  FAQ
Technical Support
Site Map
Direct Essays
 

 



Welcome to Direct Essays

This is a short summary of this paper!

Already a member? Go here to log in and view the entire paper!


Join Now!
by: Credit Card
Join Now!
by: Online Check
Join Now!
by: Phone 1-900
Special! View this paper for FREE!
  

Hatchery

Hatcheries, Once the Answer, Now the Problem

Throughout the last 150 years salmon populations have been continuously dropping, originally because of the rampant overfishing of the late 19th century, and currently because of habitat loss due to hydropower dams and poor logging practices. The primary intervention used to increase the salmon population has been hatcheries. It was thought that they would solve the problem of decreased salmon populations, hatcheries actually lead to the destruction and decline of wild salmon stocks. There are unfortunately many consequence now realized about salmon hatcheries. Little scientific research was done about the future populations of salmon and the genetic effects the hatcheries would have. Therefore statistics in regards to their future populations could not be found.

The initial problem with the hatchery approach is that instead of dealing with the reasons behind the depletion of salmon we developed a "quick fix." Essentially, instead of cleaning up the rivers and reducing dams on major migratory paths we decided to "grow" our own salmon to replace the dying species. In 1948 Paul Needham, Oregon's Chief of Fisheries, publicly announced the idea that "hatcheries can take the place


In the 1970's scientists realized that they knew little about the genetics of the salmon. They were mainly interested in manipulating the genetics to develop a salmon that would, "almost certainly be able to select for physiologically superior growth." (Science Journal 1977) Although hatcheries were created in the hope of supplementing the numbers of diminishing wild stocks of salmon, they have been more of a means to an end of the wild salmon populations. For instance, hatchery fish have a limited gene pool which leads toward uniformity. Some hatchery fish may be so different from the wild populations that they are unable to breed with each other. Hatchery fish also do not have the genetics to survive without the continued intervention of hatchery systems.

Currently the treatment of the future of Oregon's salmon has changed dramatically from the hatchery approach to one of restoration. The new approach depends on the success of salmon restoration projects. One problem is that half of the salmon habitat in Oregon is in private ownership. By getting these private owners involved salmon restoration can really begin. Currently some private owners are helping with the restoration process by planting trees along the river banks

Some common words found in the essay are:
Answer Throughout, Science Journal, Chief Fisheries, Trout Currently, Sports Illustrated, Oregon Trout, Fish Wildlife, Oregon Legislation, oregon trout, Jim Williams, wild salmon, salmon populations, salmon hatcheries, hatchery fish, fish wildlife, Department Fish, salmon population hatcheries, population hatcheries, private owners, salmon restoration, journal 1977, department fish wildlife, science journal 1977,
Approximate Word count = 833
Approximate Pages = 3 (250 words per page double spaced)


  

More Essays on Hatchery

Problems of Fish Hatcheries826 words
Brave New World1276 words
Red Drum2362 words
Brave New World528 words
America Today VS. Brave New World746 words

Look at even more essays on Hatchery
More Science Essays

Professional Papers:
Exxon Valdez Issues The paper begins by identif3945 words
BNW Society1665 words
BNW Society and Caste System1665 words
Aldous Huxleyamp39s Futuristic Vision3051 words
Brave New World3051 words
Ramifications of Exxon Valdez Oil Spill1916 words
Special! View this paper for FREE!
Click here to JoinNow!
by: Credit Card
Click here to Join Now!
by: Online Check
Click here to Join Now!
by: Phone 1-900

 

All papers and essays are for research and reference purposes only!
Copyright 2002-2009 Direct Essays , LLC. All Rights Reserved. DMCA
Webmasters make $$$$
Saved Papers