Bottom-Up Ecosystem Trophic Dynamics Determine Fish Production in the Northeast Pacific
Top Cited Papers
- 27 May 2005
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 308 (5726), 1280-1284
- https://doi.org/10.1126/science.1109049
Abstract
We addressed the question of bottom-up versus top-down control of marine ecosystem trophic interactions by using annual fish catch data and satellite-derived (SeaWiFS) chlorophyll a measurements for the continental margin of western North America. Findings reveal a marked alongshore variation in retained primary production that is highly correlated with the alongshore variation in resident fish yield. The highest productivity occurs off the coasts of Washington and southern British Columbia. Zooplankton data for coastal British Columbia confirm strong bottom-up trophic linkages between phytoplankton, zooplankton, and resident fish, extending to regional areas as small as 10,000 square kilometers.Keywords
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