Iron deficiency and phytoplankton growth in the equatorial Pacific

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Fitzwater, S. E., Coale, K. H., Gordon, R. M., Johnson, K. S., & Ondrusek, M. E. (1996). Iron deficiency and phytoplankton growth in the equatorial Pacific. Deep-Sea Research Part II: Topical Studies in Oceanography, 43(4), 995-1015. doi:10.1016/0967-0645(96)00033-1
Metadata
TitleIron deficiency and phytoplankton growth in the equatorial Pacific
AuthorsE. Fitzwater, H. Coale, M. Gordon, S. Johnson, E. Ondrusek
AbstractSeveral experiments were conducted in the equatorial Pacific at 140°W during the Joint Global Ocean Flux Study, equatorial Pacific, 1992 Time-series I (TS-I, 23 March-9 April). Time-series II (TS-II, 2-20 October) and FeLINE II cruises (10 March-14 April), to investigate the effects of added Fe on phytoplankton communities. Seven series of deckboard iron-enrichment experiments were performed, with levels of added Fe ranging from 0.13 to 1000 nM. Time-course measurements included nutrients, chlorophyll a and HPLC pigments. Results of these experiments showed that subnanomolar (sub-nM) additions of Fe increased net community specific growth rates, with resultant chlorophyll a increases and nutrient decreases. Community growth rates followed Michaelis Menten type kinetics resulting in maximum rates of 0.99 doublings per day and a half-saturation constant of 0.12 nM iron. The dominant group responding to iron enrichment was diatoms.
JournalDeep-Sea Research Part II: Topical Studies in Oceanography
Date1996
Start page995
End page1015
ISSN09670645
Subjectsgrowth, iron, JGOFS, micro-nutrients, nutrient deficiency, nutrient enrichment, phytoplankton, Pacific, (Equatorial)
NoteCited By (since 1996):62, CODEN: DSROE

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