Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature
Increasing seawater temperature and CO2 concentrations both are expected to increase coastal phytoplankton biomass and carbon to nutrient ratios in nutrient limited seasonally stratified summer conditions. This is because temperature enhances phytoplankton growth while grazing is suggested to be red...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848402 2023-05-15T17:51:39+02:00 Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature Paul, Carolin Sommer, Ulrich Garzke, Jessica Moustaka-Gouni, Maria Paul, Allanah Joy Matthiessen, Birte DATE/TIME START: 2013-08-13T00:00:00 * DATE/TIME END: 2013-09-13T00:00:00 2015-07-22 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.848402 https://doi.org/10.1594/PANGAEA.848402 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848402 https://doi.org/10.1594/PANGAEA.848402 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Paul, Carolin; Sommer, Ulrich; Garzke, Jessica; Moustaka-Gouni, Maria; Paul, Allanah Joy; Matthiessen, Birte (2016): Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature. Limnology and Oceanography, 61(3), 853-868, https://doi.org/10.1002/lno.10256 BIOACID Biological Impacts of Ocean Acidification Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.848402 https://doi.org/10.1002/lno.10256 2023-01-20T07:33:29Z Increasing seawater temperature and CO2 concentrations both are expected to increase coastal phytoplankton biomass and carbon to nutrient ratios in nutrient limited seasonally stratified summer conditions. This is because temperature enhances phytoplankton growth while grazing is suggested to be reduced during such bottom-up controlled situations. In addition, enhanced CO2 concentrations potentially favor phytoplankton species, that otherwise depend on costly carbon concentrating mechanisms (CCM). The trophic consequences for consumers under such conditions, however, remain little understood. We set out to experimentally explore the combined effects of increasing temperature and CO2 concentration for phytoplankton biomass and stoichiometry and the consequences for trophic transfer (here for copepods) on a natural nutrient limited Baltic Sea summer plankton community. The results show, that warming effects were translated to the next trophic level by switching the system from a bottom-up controlled to a mainly top-down controlled one. This was reflected in significantly down-grazed phytoplankton and increased zooplankton abundance in the warm temperature treatment (22.5°C). Additionally, at low temperature (16.5°C) rising CO2 concentrations significantly increased phytoplankton biomass. The latter effect however, was due to direct negative impact of CO2 on copepod nauplii which released phytoplankton from grazing in the cold but not in the warm treatments. Our results suggest that future seawater warming has the potential to switch trophic relations between phytoplankton and their grazers under nutrient limited conditions with the consequence of potentially disguising CO2 effects on coastal phytoplankton biomass. Dataset Ocean acidification Copepods PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
BIOACID Biological Impacts of Ocean Acidification |
spellingShingle |
BIOACID Biological Impacts of Ocean Acidification Paul, Carolin Sommer, Ulrich Garzke, Jessica Moustaka-Gouni, Maria Paul, Allanah Joy Matthiessen, Birte Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature |
topic_facet |
BIOACID Biological Impacts of Ocean Acidification |
description |
Increasing seawater temperature and CO2 concentrations both are expected to increase coastal phytoplankton biomass and carbon to nutrient ratios in nutrient limited seasonally stratified summer conditions. This is because temperature enhances phytoplankton growth while grazing is suggested to be reduced during such bottom-up controlled situations. In addition, enhanced CO2 concentrations potentially favor phytoplankton species, that otherwise depend on costly carbon concentrating mechanisms (CCM). The trophic consequences for consumers under such conditions, however, remain little understood. We set out to experimentally explore the combined effects of increasing temperature and CO2 concentration for phytoplankton biomass and stoichiometry and the consequences for trophic transfer (here for copepods) on a natural nutrient limited Baltic Sea summer plankton community. The results show, that warming effects were translated to the next trophic level by switching the system from a bottom-up controlled to a mainly top-down controlled one. This was reflected in significantly down-grazed phytoplankton and increased zooplankton abundance in the warm temperature treatment (22.5°C). Additionally, at low temperature (16.5°C) rising CO2 concentrations significantly increased phytoplankton biomass. The latter effect however, was due to direct negative impact of CO2 on copepod nauplii which released phytoplankton from grazing in the cold but not in the warm treatments. Our results suggest that future seawater warming has the potential to switch trophic relations between phytoplankton and their grazers under nutrient limited conditions with the consequence of potentially disguising CO2 effects on coastal phytoplankton biomass. |
format |
Dataset |
author |
Paul, Carolin Sommer, Ulrich Garzke, Jessica Moustaka-Gouni, Maria Paul, Allanah Joy Matthiessen, Birte |
author_facet |
Paul, Carolin Sommer, Ulrich Garzke, Jessica Moustaka-Gouni, Maria Paul, Allanah Joy Matthiessen, Birte |
author_sort |
Paul, Carolin |
title |
Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature |
title_short |
Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature |
title_full |
Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature |
title_fullStr |
Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature |
title_full_unstemmed |
Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature |
title_sort |
effects of increased co2 concentration on nutrient limited coastal summer plankton depend on temperature |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.848402 https://doi.org/10.1594/PANGAEA.848402 |
op_coverage |
DATE/TIME START: 2013-08-13T00:00:00 * DATE/TIME END: 2013-09-13T00:00:00 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_source |
Supplement to: Paul, Carolin; Sommer, Ulrich; Garzke, Jessica; Moustaka-Gouni, Maria; Paul, Allanah Joy; Matthiessen, Birte (2016): Effects of increased CO2 concentration on nutrient limited coastal summer plankton depend on temperature. Limnology and Oceanography, 61(3), 853-868, https://doi.org/10.1002/lno.10256 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.848402 https://doi.org/10.1594/PANGAEA.848402 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.848402 https://doi.org/10.1002/lno.10256 |
_version_ |
1766158868239351808 |