Trophic Cascades in a Formerly Cod-Dominated Ecosystem
Top Cited Papers
- 10 June 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 308 (5728) , 1621-1623
- https://doi.org/10.1126/science.1113075
Abstract
Removal of top predators from ecosystems can result in cascading effects through the trophic levels below, completely restructuring the food web. Cascades have been observed in small-scale or simple food webs, but not in large, complex, open-ocean ecosystems. Using data spanning many decades from a once cod-dominated northwest Atlantic ecosystem, we demonstrate a trophic cascade in a large marine ecosystem. Several cod stocks in other geographic areas have also collapsed without recovery, suggesting the existence of trophic cascades in these systems.Keywords
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