Testing the iron hypothesis in ecosystems of the equatorial Pacific Ocean

Martin, J.H.; Coale, K.H.; Johnson, K.S.; Fitzwater, S.E.; Gordon, R.M.; Tanner, S.J.; Hunter, C.N.; Elrod, V.A.; Nowicki, J.L.; Coley, T.L.; Barber, R.T.; Lindley, S.; Watson, A.J.; Van Scoy, K.; Law, C.S.; Liddicoat, M.I.; Ling, R.; Stanton, T.; Stockel, J.; Collins, C.; Anderson, A.; Bidigare, R.; Ondrusek, M.; Latasa, M.; Millero, F.J.; Lee, K.; Yao, W.; Zhang, J.Z.; Friederich, G.; Sakamoto, C.; Chavez, F.; Buck, K.; Kolber, Z.; Greene, R.; Falkowski, P.; Chisholm, S.W.; Hoge, F.; Swift, R.; Yungel, J.; Turner, S.; Nightingale, P.; Hatton, A.; Liss, P.; Tindale, N.W.. 1994 Testing the iron hypothesis in ecosystems of the equatorial Pacific Ocean. Nature, 371 (6493). 123-129.

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The idea that iron might limit phytoplankton growth in large regions of the ocean has been tested by enriching an area of 64 km2 in the open equatorial Pacific Ocean with iron. This resulted in a doubling of plant biomass, a threefold increase in chlorophyll and a fourfold increase in plant production. Similar increases were found in a chlorophyll-rich plume down-stream of the Galapagos Islands, which was naturally enriched in iron. These findings indicate that iron limitation can control rates of phytoplankton productivity and biomass in the ocean.

Item Type: Publication - Article
Digital Object Identifier (DOI):
ISSN: 0028-0836
Date made live: 05 Dec 2016 12:01 +0 (UTC)

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