Articles | Volume 15, issue 10
Biogeosciences, 15, 3121–3131, 2018
https://doi.org/10.5194/bg-15-3121-2018
Biogeosciences, 15, 3121–3131, 2018
https://doi.org/10.5194/bg-15-3121-2018
Research article
24 May 2018
Research article | 24 May 2018

N and P as ultimate and proximate limiting nutrients in the northern Gulf of Mexico: implications for hypoxia reduction strategies

Katja Fennel and Arnaud Laurent

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Cited articles

Aulenbach, B. T., Buxton, H. T., Battaglin, W. A., and Coupe, R. H.: Streamflow and nutrient fluxes of the Mississippi-Atchafalaya River Basin and subbasins for the period of record through 2005, Tech. rep., 2007.
Bianchi, T. S., DiMarco, S., Cowan, J., Hetland, R., Chapman, P., Day, J., and Allison, M.: The science of hypoxia in the Northern Gulf of Mexico: a review, Sci. Total Environ., 408, 1471–1484, 2010.
Brezonik, P. L., Bierman Jr., V. J., Alexander, R., Anderson, J., Barko, J., Dortch, M., Hatch, L., Hitchcock, G. L., Keeney, D., Mulla, D., Smith, V., Walker, C., Whitledge, T., and Wiseman Jr., W. J.: Effects of reducing nutrient loads to surface waters within the Mississippi River Basin and the Gulf of Mexico: Topic 4, Report for the Integrated Assessment on Hypoxia in the Gulf of Mexico, Tech. rep., NOAA/National Centers for Coastal Ocean Sci., Silver Spring MD, 1999.
Conley, D. J.: Biogeochemical nutrient cycles and nutrient management strategies, Hydrobiologia, 410, 87–96, 1999.
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Short summary
Increasing human-derived nutrient inputs to coastal oceans lead to spreading dead zones around the world. Here a biogeochemical model for the northern Gulf of Mexico, where nutrients from the Mississippi River create the largest dead zone in North American coastal waters, is used for the first time to show the effects of single and dual nutrient reductions of nitrogen (N) and phosphorus (P). Significant reductions in N or N&P load would be required to significantly reduce hypoxia in this system.
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