LTREB Biological Limnology at Lake Myvatn 2012-current
These data are part of a long-term monitoring program in the central part of Myvatn that represents the dominant habitat, with benthos consisting of diatomaceous ooze. The program was designed to characterize import benthis and pelagic variables across years as midge populations varied in abundance. Starting in 2012 samples were taken at roughly weekly inervals during June, July, and August, which corresponds to the summer generation of the dominant midge,<em>Tanytarsus gracilentus</em>.
Benthic chlorophyll a collected at Lake Myvatn. Includes variables related to the field collection and chemical analysis of chlorophyll a, corrected for pheaophytin. The concentration of pheaophytin is also included.
Pelagic chlorophyll a collected at Lake Myvatn. Includes variables related to the field collection and chemical analysis of chlorophyll a, corrected for pheaophytin. The concentration of pheaophytin is also included.
Emergence traps measure the quantity of emerging chironomids at 6 sites throughout Lake Myvatn. Traps are neutrally buoyant and located approximately 1m under the surface of the lake. They collect chironomid pupae in an air-filled jar as they attempt to emerge from the lake. Samples are collected every two weeks in years with low midge abundance, and more frequently in years with high abundance.
This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-1440297, NTL LTER. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.