Plankton
Fütoplankton. http://et.wikipedia.org/wiki/F%C3%BCtoplankton
4. Märkamatu kuid tähtis zooplankton.
http://www.bioneer.ee/eluviis/kliima/aid-11901/M%C3%A4rkamatu-kuid-t
%C3%A4htis-zooplankton
5. Zooplankton. http://et.wikipedia.org/wiki/Zooplankton
6. Seeking sailors to help measure phytoplankton populations. Foto:
Richard Kirby. http://firstlook.pnas.org/seeking-sailors-to-help-measure-
phytoplankton-populations
7. Early life stage dynamics. Plankton demography. Foto: Jerry Prezioso.
http://nefsc.noaa.gov/nefsc/Narragansett/plankton.html
8. Towards a better understanding of marine bacterioplankton dynamics.
Christina Preston.
http://www.mbari.org/seminars/2005/winter2005/feb9_preston.htm
9. Planktoni paradoks. http://et.wikipedia.org/wiki/Planktoni_paradoks
10.
http://commons.wikimedia.org/wiki/File:World_plankton_prevailence.PNG?
uselang=et
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annaabi.ee 
