Table 3

Example values of metabolic rates in some selected lakes. Z mean (m): mean depth of the lake, GPP (mmol O2 m−2 d−1): gross primary production, ER (mmol O2 m−2 d−1): ecosystem respiration, NEP (mmol O2 m−2 d−1). International country codes based on the ISO 3166 standard published by the International Organization for Standardization ( are in parentheses.

Lake Z mean Trophic status Major source of OC GPP ER NEP Reference
Yuan-Yang (TWN) 1.5 Oligotrophic/dystrophic Allochthonous 0.03 0.09 –0.06 Tsai et al. (2008)
Northgate Bog (USA) 1.5 Oligotrophic/dystrophic Allochthonous 11 116 –105 Hanson et al. (2003)
Hummingbird (USA) 1.5 Mesotrophic/dystrophic Allochthonous, phytoplankton 23 219 –196 Hanson et al. (2003)
Võrstjär (EST) 2.8 Eutrophic Phytoplankton 97 94 3 Laas et al. (2012)
Apopka (USA) 1.7 Hypereutrophic Phytoplankton, sediment 104 198 –94 Bachmann et al. (2000)
Albardiosa (ESP) 0.26 Hypereutrophic Macrophytes 175 152 23 Florín and Montes (1998)
Dehtář (CZE) 1.7 Hypereutrophic Phytoplankton 265 257 8 This study
Santa Olalla (ESP) 0.37 Hypereutrophic Phytoplankton, wild animals 285 308 −23 López-Archilla et al. (2004)
Frederiksborg Slotssø (DNK) 3.5 Hypereutrophic Phytoplankton 366 357 9 Staehr and Sand-Jensen (2007)

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