These datasets present data on pelagic gross primary production (GPP) of detailed depth profiles ("GPPzrates") and lake averages ("GPPlakeaverages") of summer pelagic GPP together with environmental and climatic data across 45 small and shallow lakes across northern Sweden. The datasets include 20 boreal, 6 subarctic, and 19 arctic lakes. 

We collected data on pelagic GPP depth profiles and GPPlake-averages, together with physico-chemical lake parameters in summer (June-August) from 45 lakes in northern Sweden. The lakes were spread over three different biomes (20 boreal, 6 subarctic, and 19 Arctic lakes), covering a colored DOC gradient from 1.0 to 19.5mg L-1. Pelagic GPP was measured at varying depths using 14C as isotopic tracer .