Confirmation of iron limitation of phytoplankton photosynthesis in the equatorial Pacific Ocean
Article Abstract:
In situ measurements of fluorescence during IronEx II, when dissolved iron was infused into the surface layer of a square patch of ocean in the eastern equatorial Pacific Ocean in 1995, are reported. They show that the iron enrichment induced dramatic biophysical changes of phytoplankton's photosynthetic mechanisms, leading to increased photosynthetic capacities and hence, the massive phytoplankton bloom. Findings offer proof that iron limits the bioavailability of phytoplanktons in high nitrate, low-chlorophyll waters.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Climate-driven trends in contemporary ocean productivity
Article Abstract:
The global ocean net primary production (NPP) changes detected from space are described. The link between the physical environment and ocean biology functions through changes in upper-ocean temperature and stratification has influenced the availability of nutrients for phytoplankton growth and also the reductions in ocean productivity during the post-1999 warming period has provided insight on how future climate change can alter marine food webs.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Phytoplankton productivity in the North Pacific ocean since 1900 and implications for absorption of anthropogenic CO2
Article Abstract:
Records of changes in phytoplankton biomass in the North Pacific ocean since 1900 revealed that these changes were negligible and will therefore not slow the increase in atmospheric carbon dioxide (CO2) due to human industry. The data on marine phytoplankton productivity were obtained using Secchi disks. Hence it is unlikely that increased oceanic productivity will erase the environmental effects of rising anthropogenic CO2 levels.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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