Figure 3From: Biochemical and physiological bases for the use of carbon and nitrogen isotopes in environmental and ecological studies Experimental results indicating the relationship between isotopic fractionation and growth rate (μ) of an alga. Variations in (a) the carbon isotopic fractionation associated with CO2 assimilation (\( {\varepsilon}_{{\mathrm{CO}}_2} \)) by the freshwater green alga Chlamydomonas reinhardtii (modified from Takahashi et al. 1991) and (b) the nitrogen isotopic fractionation associated with nitrate assimilation (\( {\varepsilon}_{{\mathrm{NO}}_3} \)) by the marine diatom Phaeodactylum tricornutum (modified from Wada and Hattori 1978).Back to article page