Butler, James R. A. Spey Fishery Board, United Kingdom.
Show previous versions
- Impacts on wild salmonids
- Impacts on the aquatic environment
- Addressing impacts on wild salmonids
- Addressing impacts on the aquatic environment
- Links to Primary Literature
- Additional Readings
The cultivation and harvesting (aquaculture) of salmon species. The natural range of the Atlantic salmon (Salmo salar, order Salmoniformes; Fig. 1) stretches from Portugal and the northern coast of New England in the United States northward to subarctic Norway, Russia, and Canada. Salmon are anadromous, whereby they breed in freshwater and migrate to sea to feed. Within their range, adult salmon spawn in cool and well-oxygenated streams. Juveniles spend 1–5 years in freshwater before transforming into silvered smolts (Fig. 2). At this stage, they migrate to sea, following ocean currents to feeding grounds in the Atlantic. Once in the sea, salmon grow rapidly, feeding on small fish and crustaceans. After 1–3 more years, the fish reach sexual maturity and migrate with great accuracy to their natal rivers, often spawning in the same tributary where they were born. As a result, salmon stocks have evolved into genetically distinct local populations. See also: Aquaculture; Marine ecology; Migratory behavior; Salmon; Salmoniformes
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 39 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information