US Long-Term Ecological Research Network
Cascade Project at North Temperate Lakes LTER Core Data Process Data 1984 - 2016

Abstract

Data useful for calculating and evaluating primary production processes were collected from 6 lakes from 1984-2016. Chlorophyll a and pheophytin were measured by the same fluorometric method from 1984-2016. In some years chlorophyll and pheophytin were separated into size fractions (total, and a ‘small’ fraction that passed a 35 um mesh screen). Primary production was measured by the 14C method from 1984-1998. Dissolved inorganic carbon for primary production calculation was calculated from Gran alkalinity titration and air-equilibrated pH until 1987 when this method was replaced by gas chromatography. Until 1995 alkaline phosphatase activity was measured as an indicator of phosphorus deficiency.
Dataset ID
354

Data Citation Suggestion

Carpenter, S., J. Kitchell, J. Cole, and M. Pace. 2017. Cascade Project at North Temperate Lakes LTER Core Data Process Data 1984 - 2016 ver 4. Environmental Data Initiative. https://doi.org/10.6073/pasta/6a658526e313dbcecbc0331a1f343c01. Accessed 2021-06-17.

Data Download

Data useful for calculating and evaluating primary production processes