US Long-Term Ecological Research Network
LTREB Biological Limnology at Lake Myvatn 2012-current

Abstract

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>.
Dataset ID
296

Data Citation Suggestion

Ives, A. 2015. LTREB Biological Limnology at Lake Myvatn 2012-current ver 2. Environmental Data Initiative. https://doi.org/10.6073/pasta/318bce981706bb6b7ae8e5286c681c4d. Accessed 2021-05-13.

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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.
Zooplankton counts from the pelagic zone of Lake Myvatn.
Microcrustacean counts from samples collected at Lake Myvatn.
Chironomid counts from samples collected at Lake Myvatn.
Chironomid head sizes for different species collected at Lake Myvatn.
EMERGENCE TRAP SITES UTM, ZONE 28
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.