10.1594/PANGAEA.885617
Braeckman, Ulrike
Ulrike
Braeckman
0000-0002-7558-6363
Janssen, Felix
Felix
Janssen
0000-0002-5607-4012
Lavik, Gaute
Gaute
Lavik
Elvert, Marcus
Marcus
Elvert
0000-0003-3863-0975
Marchant, Hannah K
Hannah K
Marchant
0000-0002-1482-9165
Buckner, Caroline
Caroline
Buckner
Bienhold, Christina
Christina
Bienhold
0000-0003-2269-9468
Wenzhöfer, Frank
Frank
Wenzhöfer
Carbon and nitrogen turnover during an in situ experiment with addition of Thalassiosira sp. and E. huxleyi phytodetritus at AWI-HAUSGARTEN S2 in 2013
PANGAEA
2018
Long-term Investigation at AWI-Hausgarten off Svalbard (Hausgarten)
2013-07-02T00:00:00/2013-07-09T00:00:00
en
Supplementary Publication Series of Datasets
10.5194/bg-15-6537-2018
https://store.pangaea.de/Publications/Braeckmann-etal_2018/MSM29_foodlander_experiment.xlsx
10 datasets
application/zip
Creative Commons Attribution 3.0 Unported
This is a dataset from an in situ experiment at station S2 from the LTER monitoring site HAUSGARTEN, performed in June-July 2013 during Maria S Merian expedition MSM29. The in situ responses of Arctic deep-sea benthos to input of phytodetritus of a diatom (Thalassiosira sp.) as opposed to a coccolithophorid (Emiliania huxleyi) were investigated in incubation chambers of benthic landers. Using 13C and 15N labelled phytodetritus harvested from cultures of these species, we traced the fate of the respective phytodetritus into different parts of the food web (respiration, assimilation by bacteria and infauna >250 µm), in a short (4d) and long (14d) term experiment.
The benthic landers were lowered to the sea floor, where they enclosed ~ 20cm of sediment and ~10 cm of overlying water. During respectively 4d and 14d, the temperature and concentrations of O2, DIC, 13C-DIC, NHx, NOx, 15N-NH4, 15N-NOx were measured. Upon recovery of the landers, the sediment was retrieved and subsampled in vertical horizons to measure pigment, TOC and TN, 13C-POC and 15N-PN concentrations, pore water concentrations of DIC, 13C-DIC, NHx, NOx, 15N-NH4 and 15N-NOx and the assimilation of 13C in bacterial fatty acids (iC15:0 and aiC15:0) and in fauna > 250 µm
Supplement to: Braeckman, Ulrike; Janssen, Felix; Lavik, Gaute; Elvert, Marcus; Marchant, Hannah K; Buckner, Caroline; Bienhold, Christina; Wenzhöfer, Frank (2018): Carbon and nitrogen turnover in the Arctic deep sea: in situ benthic community response to diatom and coccolithophorid phytodetritus. Biogeosciences, 15(21), 6537-6557
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