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Higher trophic levels in the Southern North Sea
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Iron resources and oceanic nutrients: advancement of global environment simulations
Veldhuis, M.; de Baar, H.J.W. (2005). Iron resources and oceanic nutrients: advancement of global environment simulations. J. Sea Res. 53(1-2): 1-6. https://dx.doi.org/10.1016/j.seares.2004.10.001
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414
Also appears in:
Veldhuis, M.J.W. (Ed.) (2005). Iron resources and oceanic nutrients: advancement of global environmental simulations. Journal of Sea Research, 53(1-2). Elsevier: Amsterdam. 120 pp., more
Peer reviewed article  
Available in  Authors 
Keywords
    Chemical compounds > Iron compounds
    Nutrients (mineral)
    Simulation
    Marine/Coastal
Authors  Top 
  • Veldhuis, M.
  • de Baar, H.J.W.
Abstract
    Iron limits phytoplankton growth in more than 40 percent of the oceans and is a colimitation in the remaining 60 percent of surface waters. Moreover the paradigm of a single limiting factor for plankton blooms has given way to the concept of colimitation by light, and the nutrient elements N, Fe, P and Si. Primary production, export into the deep sea, and CO2 uptake from the atmosphere together form the biological pump in Ocean Biogeochemical Climate Models (OBCM’s). The IRONAGES project is a consortium of 12 European institutes developing more realistic OBCM’s for budgeting and exchanges of both and CO2 and DMS, by implementing the following improvements: (i) co-limitation by four nutrients N, Fe, P, Si simultaneously; (ii) five major bloom-forming taxonomic groups, the diatoms, calcifiers, N2-fixers, Phaeocystis sp. and nano-pico-plankton; (iii) DMS(P) pathways; (iv) integrated plankton ecosystem modeling; (v) realistic global oceanic iron cycling, on basis of: (vi) iron supply from below reducing sediments; (vii) iron supply from above aeolian dust input; (viii) several chemical forms of iron in surface waters; (ix) certification of iron data in the oceans.
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