Technique of Measuring Phytoplankton Primary Production
63
Fig.2.17. An example of the spatial distribution of primary production in the Rybinsk
water reservoir measured during a standard cruise in August
Cpt
-I-__ ----l _ _ _ -+ _ _ _ +-_ __ I--....::=:::::;~==~M.onths
M,y
June
Ju ly
August
Seplembcr
Oc.lobcr
Fig. 2.18. Seasonal course of daily primary production, calculated per whole area of
the Rybinsk reservoir (Cpt, 10 3 t°C) after observations done in 1955