Publication Date:
2024-06-12
Description:
Mesozooplankton trophic position (via copepod δ15N) to approximate food web length as well as fish production (via biomass increase) and feeding rate (via stomach content) during the mesocosm experiment in the Canary Islands in autumn 2019. Copepods 〉200µm were sampled depth-integrated (0-2.5m) on day 13. At this time, copepods represented the top of the food web as fish were not yet present. Individuals were picked in groups into tin capsules and δ15N measured in a mass spectrometer. Particulate organic matter(〉0.7µm) δ15N was also measured to calculate an autotroph baseline. The difference between copepod and autotroph δ15N was used as trophic level proxy. A small pelagic fish (silverside, Atherina presbyter) was introduced to the mesocosms on day 15. On day 18, for a subset of fish, stomachs content was assessed to estimate feeding success. On day 21, all fish were sampled for biomass and abundance. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188) and Goldenberg et al. (under review).
Keywords:
AQUACOSM; artificial upwelling; Atherina presbyter, juvenile; Atherina presbyter, juvenile, standard length; Atherina presbyter, juvenile, wet mass; Atherina presbyter, larvae; Atherina presbyter, larvae, standard length; Atherina presbyter, larvae, wet mass; Calculated; Canarias Sea; carbon dioxide removal; CDRmare; Copepoda; Copepoda, biomass as carbon, per fish stomach; Copepoda, biomass as nitrogen; Copepoda, δ15N; DAM CDRmare - Test-ArtUp: Road testing ocean artificial upwelling; DATE/TIME; Day of experiment; Depth, water, experiment, bottom/maximum; Depth, water, experiment, top/minimum; diatoms; Event label; Field experiment; food production; GC2019; KOSMOS; KOSMOS_2019; KOSMOS_2019_Mesocosm-M1; KOSMOS_2019_Mesocosm-M2; KOSMOS_2019_Mesocosm-M3; KOSMOS_2019_Mesocosm-M4; KOSMOS_2019_Mesocosm-M5; KOSMOS_2019_Mesocosm-M6; KOSMOS_2019_Mesocosm-M7; KOSMOS_2019_Mesocosm-M8; KOSMOS Gran Canaria; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; negative emission technology; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Number of copepoda, per fish stomach; Number of samples; Ocean Artificial Upwelling; Ocean-artUp; ocean fertilization; plankton food web; Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways; Sample type; small pelagic fish; Test-ArtUp; Treatment; trophic transfer; Type of study; δ15N; δ15N, particulate organic matter
Type:
Dataset
Format:
text/tab-separated-values, 328 data points
Permalink
