Buitenhuis, Erik T.
Doney, Scott C.
Le Quéré, Corinne
- Journal Article
Rights / licenseCreative Commons Attribution 3.0 Unported
We present a summary of biomass data for 11 Plankton Functional Types (PFTs)plus phytoplankton pigment data, compiled as part of the MARine Ecosystem biomassDATa (MAREDAT) initiative. The goal of the MAREDAT initiative is to provide global gridded data products with coverage of all biological components of the global ocean ecosystem. This special issue is the first step towards achieving this. The PFTs presented here include picophytoplankton, diazotrophs, coccolithophores,Phaeocystis, diatoms, picoheterotrophs, microzooplankton, foraminifers, mesozooplankton, pteropodsand macrozooplankton. All variables have been gridded onto a World Ocean Atlas (WOA) grid (1° × 1° × 33 vertical levels × monthly climatologies). The data show that (1) the global total heterotrophic biomass (2.0–6.4Pg C) is at least as high as the totalautotrophic biomass (0.5–2.6 Pg C excluding nanophytoplankton and autotrophic dinoflagellates), (2) the biomass of zooplankton calcifiers (0.9–2.3Pg C) is substantiallyhigher than that of coccolithophores (0.01–0.14 Pg C), (3) patchiness of biomass distribution increases with organism size, and (4) although zooplankton biomass measurements below 200m are rare, the limited measurements available suggest thatBacteriaandArchaeaare not the only heterotrophs in the deep sea. More data will be neededto characterize ocean ecosystem functioning and associated biogeochemistry in theSouthern Hemisphere and below 200 m. Show more
Journal / seriesEarth System Science Data Discussions
Pages / Article No.
Organisational unit03731 - Gruber, Nicolas / Gruber, Nicolas
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Is previous version of: http://hdl.handle.net/20.500.11850/44458
Is source of: https://doi.org/10.3929/ethz-b-000383503
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