(Table 1) Dissolved organic carbon, water temperature and conductivity in three subarctic ponds near Kilpisjärvi, North Finland ...

Daphnia was collected from five subarctic ponds which differed greatly in their DOC contents and, consequently, their underwater light (UV) climates. Irrespective of which Daphnia species was present, and contrary to expectations, the ponds with the lowest DOC concentrations (highest UV radiation le...

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Bibliographic Details
Main Authors: Zellmer, Iris D, Arts, M, Abele, Doris, Humbeck, Klaus
Format: Dataset
Language:English
Published: PANGAEA 2004
Subjects:
Lake
DATE/TIME
Depth, bottom/max
Description
Carbon, organic, dissolved
Carbon, organic, dissolved, standard deviation
Temperature, water
Temperature, water, standard deviation
Conductivity, electrolytic
Conductivity, standard deviation
Water sample
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158
Antarctic
Arctic
Kilpisjärvi
Klaus
Antarc*
North Finland
Sea ice
Subarctic
Online Access:https://dx.doi.org/10.1594/pangaea.858495
https://doi.pangaea.de/10.1594/PANGAEA.858495
Description
Summary:Daphnia was collected from five subarctic ponds which differed greatly in their DOC contents and, consequently, their underwater light (UV) climates. Irrespective of which Daphnia species was present, and contrary to expectations, the ponds with the lowest DOC concentrations (highest UV radiation levels) contained Daphnia with the highest eicosapentaenoic acid (EPA) concentrations. In addition, EPA concentrations in these Daphnia generally decreased in concert with seasonally increasing DOC concentrations.Daphnia from three of the ponds was also tested for its tolerance to solar ultraviolet radiation (UVR) with respect to survival. Daphnia pulex from the clear water pond showed, by far, the best UV-tolerance, followed by D. longispina from the moderately humic and D. longispina from the very humic pond. In addition, we measured sublethal parameters related to UV-damage such as the degree to which the gut of Daphnia appeared green (as a measure of their ability to digest algae), and whether their guts ... : Supplement to: Zellmer, Iris D; Arts, M; Abele, Doris; Humbeck, Klaus (2004): Evidence of sublethal damage in Daphnia (Cladocera) during exposure to solar UV radiation in subarctic ponds. Arctic, Antarctic, and Alpine Research, 36(3), 370-377 ...

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