Ammonium concentrations were derived using the fluorometric method described by Holmes et al., (1999) incorporating amendments suggested by Taylor et al., (2007)
Related files and references:
Holmes et al. (1999). Description of fluorometric analytical technique.
A simple and precise method for measuring ammonium in marine and freshwater ecosystems
Robert M Holmes, Alain Aminot, Roger Kérouel, Bethanie A Hooker, Bruce J Peterson
Canadian Journal of Fisheries and Aquatic Sciences, 1999, 56(10): 1801-1808, 10.1139/f99-128
http://www.nrcresearchpress.com/doi/abs/10.1139/f99-128#.UugDShDTncs
Taylor et al. (2007). Description of improvements to Holmes method
Improving the fluorometric ammonium method: matrix effects, background fluorescence, and standard additions
Brad W. Taylor, Christine F. Keep, Robert O. Hall, Benjamin J. Koch, Lusha M. Tronstad, Alexander S. Flecker, Amber J. Ulseth
Journal of The North American Benthological Society - J N AMER BENTHOL SOC 01/2007; 26(2):167-177.
doi: http://dx.doi.org/10.1899/0887-3593(2007)26[167:ITFAMM]2.0.CO;2
http://www.bioone.org/doi/abs/10.1899/0887-3593%282007%2926%5B167%3AITFAMM%5D2.0.CO%3B2
Capone, D. G., Berelson, W. M. (2013) Upper water column Ammonium measurements from R/V Knorr, R/V Melville, R/V Atlantis KN197-08, MV1110, AT21-04 in the Amazon River plume, 2010-2012 (ANACONDAS project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 28 March 2013) Version Date 2013-03-28 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/491109 [access date]
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