Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität Oldenburg ICBM https://uol.de/en/icbm https://ror.org/0060pja03 Gerhard Miriam miriam.libertad.gerhard@uni-oldenburg.de 0000-0002-0472-9435 Universidad de la República Uruguay https://udelar.edu.uy/portal/ https://ror.org/030bbe882 Smykala Mike mike.jan.smykala@uni-oldenburg.de 0009-0004-7439-8514 Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky Universität Oldenburg ICBM https://uol.de/en/icbm https://ror.org/0060pja03 2024 Log response ratio of observed versus expected growth rates of Antarctic phytoplankton in response to temperature and nitrogen:phosphorus supply interactions dataset https://doi.org/10.1594/PANGAEA.971327 2024-10-29T10:18:16 https://doi.org/10.1594/PANGAEA.971329 Data were obtained from a laboratory growth experiment conducted from April to May 2021 at the Institute for Chemistry and Biology of the Marine Environment (University of Oldenburg). Three Antarctic phytoplankton species (Chaetoceros simplex, Phaeocystis antarctica (single cell culture) and Geminigera cryophila) were grown in monocultures and a mixture of all three species. We used a factorial design including four different N/P treatments (control plus three different N/P levels) and 10 different temperatures (-2, -1, 0, 1, 2, 3, 4, 6, 8 and 10°C). The detailed experimental setup is explained in doi:10.1594/PANGAEA.971329. In order to analyze whether the temperature and nutrient response of the mixed assemblage differs from expectations based on the monoculture performance, we calculated the log response ratio between the observed specific growth rate (µobs) of the mixed phytoplankton assemblage and the expected growth rate based on monocultures (µexp) as ln(µobs/µexp). Therefore we calculated an abundance weighted specific growth rate for the expected performance in the mixed assemblage (µexp) based on the monoculture performance as µexp = (a1*µ1) + (a2*µ2) + (a3*µ3) / (a1+a2+a3) where a is the abundance of each species at exponential growth in the mixed assemblage and µ is the specific growth rate of the corresponding monoculture. Positive deviations from 0 indicate higher observed growth in the mixed assemblage (µobs) than expected from monoculture performance (µexp). Smykala Mike mike.jan.smykala@uni-oldenburg.de 0009-0004-7439-8514 Gerhard Miriam miriam.libertad.gerhard@uni-oldenburg.de 0000-0002-0472-9435 Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 2025 Nutrient-dependent thermal response in growth and stoichiometry of Antarctic phytoplankton journal article Limnology and Oceanography 70(6) https://doi.org/10.1002/lno.70045 1709-1724 uncoded table German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 442927665 Altered stoichiometry and species interactions in coastal Antarctic plankton communities under global climate change https://gepris.dfg.de/project/442927665 1048 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ The experiment started at 2021-04-02T10:00 and ended at 2021-05-19T12:00 . Type of study Study type type Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 Study type Taxon/taxa Taxa Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 Taxa Treatment: temperature T:temp °C treatment Temperature Θ http://dbpedia.org/resource/Temperature Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 T:temp [°C] Treatment: nitrogen/phosphorus ratio T:N/P treatment nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 phosphorus ratio Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 molar N:P supply T:N/P Experimental treatment Exp treat Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 "P addition", "N addition", "N and P addition", Control Exp treat Treatment: nitrogen T:N µmol/l treatment nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 Molar Concentration Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 Nitrogen supply T:N [µmol/l] Treatment: phosphorus T:P µmol/l treatment phosphorus Molar Concentration Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 Phosphorus supply T:P [µmol/l] Replicate Repl Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 Repl Expected growth rate, linear µ exp 1/day linear http://purl.obolibrary.org/obo/PATO_0001199 Frequency http://dbpedia.org/resource/Frequency Calculated Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 specific growth rate µ exp [1/day] Observed growth rate, linear µ obs 1/day linear http://purl.obolibrary.org/obo/PATO_0001199 Frequency http://dbpedia.org/resource/Frequency Calculated Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 specific growth rate µ obs [1/day] Log response ratio, observed versus expected growth rate, linear LRR µ obs vs µ exp ratio Calculated Plum Christoph c.plum@uni-oldenburg.de 0000-0002-2231-1315 LRR2 LRR µ obs vs µ exp CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Diatom ecological stoichiometry Geminigera cryophila Laboratory experiment Nitrogen Phaeocystis antarctica Phosphorus Southern Ocean Temperature author106422 author85097 author98714 award3223 curlevel30 funder20472 inst21073 inst461 journal10608 license21 method50 param105163 param129269 param185520 param191489 param24582 param524821 param524822 param530659 param530660 param530661 param82404 pi85097 ref127389 term1074539 term264 term2663825 term37599 term38548 term38841 term39985 term41013 term43061 term43838 term43972 term44030 term47647 term49506 term50462 term53062 term72906 term73152 topotype11