Franco Cisterna, Belén; Stief, Peter; Glud, Ronnie N (2024): Effect of temperature on the cumulative carbon loss from decaying copepod carcasses [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.969430
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Published: 2024-07-01 • DOI registered: 2024-07-30
Abstract:
The effect of varying temperature on the kinetics of aerobic microbial respiration (a proxy for oxidative carbon mineralization) associated with copepod carcasses was studied in laboratory incubation experiments. Copepod carcasses were produced by exposing female specimens of cultured Acartia tonsa to anoxic conditions for 2 hours. Carcasses were incubated in gas-tight glass vials equipped with an internal optode for contactless oxygen measurements at 5 different temperatures ranging between 4 and 20°C. Carcass-associated oxygen consumption was measured for varying time periods. The obtained respiration rates were converted to carbon mineralization rates using 3 different theoretical values for the respiratory quotient and 3 different theoretical values for bacterial production and then to the cumulative carbon loss relative to the initial carbon contents of the carcasses.
Keyword(s):
Related to:
Franco-Cisterna, Belén; Stief, Peter; Glud, Ronnie N (2021): Temperature effects on carbon mineralization of sinking copepod carcasses. Marine Ecology Progress Series, 679, 31-45, https://doi.org/10.3354/meps13907
Funding:
Danish National Research Foundation (DG), grant/award no. DNRF145: Danish Center for Hadal Research, HADAL
Coverage:
Latitude: 55.368167 * Longitude: 10.426563
Date/Time Start: 2018-12-10T10:00:00 * Date/Time End: 2019-03-08T10:00:00
Event(s):
Comment:
The Acartia tonsa specimens used for experimentation were obtained from a long-established laboratory culture at the Department of Science and Environment at Roskilde University. The original collection site of the copepods is unknown.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Franco Cisterna, Belén | |||
| 2 | Date/time start, experiment | Date/time start exp | Franco Cisterna, Belén | |||
| 3 | Date/time end, experiment | Date/time end exp | Franco Cisterna, Belén | |||
| 4 | Species, unique identification | Species UID | Franco Cisterna, Belén | Visual identification (VID) | ||
| 5 | Species, unique identification (Semantic URI) | Species UID (Semantic URI) | Franco Cisterna, Belén | Visual identification (VID) | ||
| 6 | Species, unique identification (URI) | Species UID (URI) | Franco Cisterna, Belén | Visual identification (VID) | ||
| 7 | Experimental condition | Exp condition | Franco Cisterna, Belén | vital status | ||
| 8 | Respiratory quotient | RQ | Franco Cisterna, Belén | assumed values from the literature: 0.77, 0.80, and 0.85 | ||
| 9 | Bacteria, growth efficiency | Bact growth eff | % | Franco Cisterna, Belén | assumed values from the literature: 5, 15, and 20 % | |
| 10 | Treatment: temperature | T:temp | °C | Franco Cisterna, Belén | Incubation in temperature-controlled rooms | |
| 11 | Experiment duration | Exp duration | days | Franco Cisterna, Belén | ||
| 12 | Carbon loss, cumulative | Cum C loss | % | Franco Cisterna, Belén | Calculated from the sum of aerobic bacterial respiration (BR) and bacterial production (BP) | BP was calculated assuming bacterial growth efficiencies of 5, 15, and 20 % and using the measured BR according to the following equation: BP = (BGE × BR) / (1 − BGE). |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1710 data points