Article
 

Red Waters of Myrionecta rubra are Biogeochemical Hotspots for the Columbia River Estuary with Impacts on Primary/Secondary Productions and Nutrient Cycles

Pubblico Deposited

Contenuto scaricabile

Scarica il pdf
https://ir.library.oregonstate.edu/concern/articles/5h73px567

Descriptions

Attribute NameValues
Creator
Abstract
  • The localized impact of blooms of the mixotrophic ciliate Myrionecta rubra in the Columbia River estuary during 2007-2010 was evaluated with biogeochemical, light microscopy, physiological, and molecular data. M. rubra affected surrounding estuarine nutrient cycles, as indicated by high and low concentrations of organic nutrients and inorganic nitrogen, respectively, associated with red waters. M. rubra blooms also altered the energy transfer pattern in patches of the estuarine water that contain the ciliate by creating areas characterized by high primary production and elevated levels of fresh autochthonous particulate organic matter, therefore shifting the trophic status in emergent red water areas of the estuary from net heterotrophy towards autotrophy. The pelagic estuarine bacterial community structure was unaffected by M. rubra abundance, but red waters of the ciliate do offer a possible link between autotrophic and heterotrophic processes since they were associated with elevated dissolved organic matter and showed a tendency for enhanced microbial secondary production. Taken together, these findings suggest that M. rubra red waters are biogeochemical hotspots of the Columbia River estuary.
  • Keywords: Myrionecta rubra, Biogeochemical cycles, Red waters, Mesodinium rubrum, Columbia River estuary
Resource Type
DOI
Date Available
Date Issued
Citation
  • Herfort, L., Peterson, T. D., Prahl, F. G., McCue, L. A., Needoba, J. A., Crump, B. C., . . . . (2012). Red waters of myrionecta rubra are biogeochemical hotspots for the columbia river estuary with impacts on Primary/Secondary productions and nutrient cycles. Estuaries and Coasts, 35(3), 878-891. doi: 10.1007/s12237-012-9485-z
Journal Title
Journal Volume
  • 35
Journal Issue/Number
  • 3
Dichiarazione dei diritti
Funding Statement (additional comments about funding)
  • This study was carried out within the context of the Science and Technology Center for Coastal Margin Observation & Prediction (CMOP) supported by the National Science Foundation (grant number OCE-0424602). A portion of the research was performed with support from the Laboratory Directed Research and Development program at Pacific Northwest National Laboratory, which is operated by Battelle for the United States Department of Energy under Contract DE-AC05- 76RL01830.
Publisher
Peer Reviewed
Language
Replaces

Le relazioni

Parents:

This work has no parents.

Elementi

Thumbnail Titolo Data caricata Visibilità Azioni
file details PrahlFredrickGEarthOceanAtmosphericSciencesRedWatersMyrionecta.pdf 2017-07-21 Pubblico Scaricare