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Multiple trophic levels fueled by recirculation in the Columbia River plume Public Deposited

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  • Large rivers represent gateways for the transport of terrigenous and anthropogenic material to the coastal ocean. Here we document a ∼700 km2 recirculation or bulge associated with the Columbia River plume that retains recently discharged river water sufficiently to create a regional bioreactor. Fueled by a fluvial nitrate source, this feature stimulated growth across three trophic levels and may buffer this gateway system during periods of increased warming and stratification that lead to decreased ocean productivity, potentially enhancing production at multiple trophic levels and enriching surfacewaters far fromthe river mouth.
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  • Kudela,R.M., et al. (2010), Multiple trophic levels fueled by recirculation in the Columbia River plume, Geophys. Res. Lett., 37, L18607, doi:10.1029/2010GL044342.
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  • The National Science Foundation for the financial support for this work.
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  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2011-10-13T22:29:55Z (GMT) No. of bitstreams: 1 KosroPMichael.COAS.MultipleTrophicLevels.pdf: 809184 bytes, checksum: 931f02ce15fd43411315f744827c89b9 (MD5)
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  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2011-09-21T20:14:50Z No. of bitstreams: 1 KosroPMichael.COAS.MultipleTrophicLevels.pdf: 809184 bytes, checksum: 931f02ce15fd43411315f744827c89b9 (MD5)

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