Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production
Ocean acidification is caused by increasing amounts of carbon dioxide dissolving in the oceans leading to lower seawater pH. We studied the effects of lowered pH on the calanoid copepod Eurytemora affinis during a mesocosm experiment conducted in a coastal area of the Baltic Sea. We measured copepod...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
COPERNICUS GESELLSCHAFT MBH
2016
|
Subjects: | |
Online Access: | http://hdl.handle.net/10138/161788 |
id |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/161788 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
BALTIC SEA OXIDATIVE STRESS EGG-PRODUCTION CO2-INDUCED ACIDIFICATION PLANKTON COMMUNITY HATCHING SUCCESS MARINE ORGANISMS FOOD QUALITY ELEVATED CO2 IMPACTS 1172 Environmental sciences |
spellingShingle |
BALTIC SEA OXIDATIVE STRESS EGG-PRODUCTION CO2-INDUCED ACIDIFICATION PLANKTON COMMUNITY HATCHING SUCCESS MARINE ORGANISMS FOOD QUALITY ELEVATED CO2 IMPACTS 1172 Environmental sciences Almén, Anna-Karin Vehmaa, Anu Brutemark, Andreas Bach, Lennart Lischka, Silke Stuhr, Annegret Furuhagen, Sara Paul, Allanah Bermudez, J. Rafael Riebesell, Ulf Engström-Öst, Jonna Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production |
topic_facet |
BALTIC SEA OXIDATIVE STRESS EGG-PRODUCTION CO2-INDUCED ACIDIFICATION PLANKTON COMMUNITY HATCHING SUCCESS MARINE ORGANISMS FOOD QUALITY ELEVATED CO2 IMPACTS 1172 Environmental sciences |
description |
Ocean acidification is caused by increasing amounts of carbon dioxide dissolving in the oceans leading to lower seawater pH. We studied the effects of lowered pH on the calanoid copepod Eurytemora affinis during a mesocosm experiment conducted in a coastal area of the Baltic Sea. We measured copepod reproductive success as a function of pH, chlorophyll a concentration, diatom and dinoflagellate biomass, carbon to nitrogen (C : N) ratio of suspended particulate organic matter, as well as copepod fatty acid composition. The laboratory-based experiment was repeated four times during 4 consecutive weeks, with water and copepods sampled from pelagic mesocosms enriched with different CO2 concentrations. In addition, oxygen radical absorbance capacity (ORAC) of animals from the mesocosms was measured weekly to test whether the copepod's defence against oxidative stress was affected by pH. We found no effect of pH on offspring production. Phytoplankton biomass, as indicated by chlorophyll a concentration and dinoflagellate biomass, had a positive effect. The concentration of polyunsaturated fatty acids in the females was reflected in the eggs and had a positive effect on offspring production, whereas monounsaturated fatty acids of the females were reflected in their eggs but had no significant effect. ORAC was not affected by pH. From these experiments we conclude that E. affinis seems robust against direct exposure to ocean acidification on a physiological level, for the variables covered in the study. E. affinis may not have faced acute pH stress in the treatments as the species naturally face large pH fluctuations. Peer reviewed |
author2 |
Tvärminne Zoological Station Behavioural Ecology - Candolin Research Lab |
format |
Article in Journal/Newspaper |
author |
Almén, Anna-Karin Vehmaa, Anu Brutemark, Andreas Bach, Lennart Lischka, Silke Stuhr, Annegret Furuhagen, Sara Paul, Allanah Bermudez, J. Rafael Riebesell, Ulf Engström-Öst, Jonna |
author_facet |
Almén, Anna-Karin Vehmaa, Anu Brutemark, Andreas Bach, Lennart Lischka, Silke Stuhr, Annegret Furuhagen, Sara Paul, Allanah Bermudez, J. Rafael Riebesell, Ulf Engström-Öst, Jonna |
author_sort |
Almén, Anna-Karin |
title |
Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production |
title_short |
Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production |
title_full |
Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production |
title_fullStr |
Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production |
title_full_unstemmed |
Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production |
title_sort |
negligible effects of ocean acidification on eurytemora affinis (copepoda) offspring production |
publisher |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2016 |
url |
http://hdl.handle.net/10138/161788 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
10.5194/bg-13-1037-2016 We would like to thank the staff of Tvarminne Zoological Station for providing working facilities during the experiment. We also thank the entire KOSMOS team for the joint sampling effort. We thank Michael Sswat for his attribution to the C : N analyses. We also thank the crew of R/V Alkor (AL394, A397) for transportation, deployment and recovery of the mesocosms, as well as the diving team. Special thanks go to Andrea Ludwig for organizing logistics and to Bettina Gronlund for assistance with zooplankton sampling and in the lab. The study was funded by Walter and Andree de Nottbeck Foundation, Victoriastiftelsen, Academy of Finland (project nr. 276947), the Onni Talas foundation, Lennart Bach received funding from the BIOACID project (W. P. 1.3) and A. J. Paul from Excellence Cluster 'The Future Ocean' (Project CP1141). The collaborative project was funded by German Ministry of Education and Research (BMBF) BIOACID II (FKZ 03F06550), SOPRAN II (FKZ 03F0611) and MESOAQUA (228224). Almén , A-K , Vehmaa , A , Brutemark , A , Bach , L , Lischka , S , Stuhr , A , Furuhagen , S , Paul , A , Bermudez , J R , Riebesell , U & Engström-Öst , J 2016 , ' Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production ' , Biogeosciences , vol. 13 , no. 4 , pp. 1037-1048 . https://doi.org/10.5194/bg-13-1037-2016 84975749003 7a4cd0ca-9022-4f83-9052-dfe1978b1687 http://hdl.handle.net/10138/161788 000372082200011 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Biogeosciences |
container_volume |
13 |
container_issue |
4 |
container_start_page |
1037 |
op_container_end_page |
1048 |
_version_ |
1787427248368779264 |
spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/161788 2024-01-07T09:45:40+01:00 Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production Almén, Anna-Karin Vehmaa, Anu Brutemark, Andreas Bach, Lennart Lischka, Silke Stuhr, Annegret Furuhagen, Sara Paul, Allanah Bermudez, J. Rafael Riebesell, Ulf Engström-Öst, Jonna Tvärminne Zoological Station Behavioural Ecology - Candolin Research Lab 2016-05-11T12:06:01Z 12 application/pdf http://hdl.handle.net/10138/161788 eng eng COPERNICUS GESELLSCHAFT MBH 10.5194/bg-13-1037-2016 We would like to thank the staff of Tvarminne Zoological Station for providing working facilities during the experiment. We also thank the entire KOSMOS team for the joint sampling effort. We thank Michael Sswat for his attribution to the C : N analyses. We also thank the crew of R/V Alkor (AL394, A397) for transportation, deployment and recovery of the mesocosms, as well as the diving team. Special thanks go to Andrea Ludwig for organizing logistics and to Bettina Gronlund for assistance with zooplankton sampling and in the lab. The study was funded by Walter and Andree de Nottbeck Foundation, Victoriastiftelsen, Academy of Finland (project nr. 276947), the Onni Talas foundation, Lennart Bach received funding from the BIOACID project (W. P. 1.3) and A. J. Paul from Excellence Cluster 'The Future Ocean' (Project CP1141). The collaborative project was funded by German Ministry of Education and Research (BMBF) BIOACID II (FKZ 03F06550), SOPRAN II (FKZ 03F0611) and MESOAQUA (228224). Almén , A-K , Vehmaa , A , Brutemark , A , Bach , L , Lischka , S , Stuhr , A , Furuhagen , S , Paul , A , Bermudez , J R , Riebesell , U & Engström-Öst , J 2016 , ' Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production ' , Biogeosciences , vol. 13 , no. 4 , pp. 1037-1048 . https://doi.org/10.5194/bg-13-1037-2016 84975749003 7a4cd0ca-9022-4f83-9052-dfe1978b1687 http://hdl.handle.net/10138/161788 000372082200011 cc_by openAccess info:eu-repo/semantics/openAccess BALTIC SEA OXIDATIVE STRESS EGG-PRODUCTION CO2-INDUCED ACIDIFICATION PLANKTON COMMUNITY HATCHING SUCCESS MARINE ORGANISMS FOOD QUALITY ELEVATED CO2 IMPACTS 1172 Environmental sciences Article publishedVersion 2016 ftunivhelsihelda 2023-12-14T00:04:00Z Ocean acidification is caused by increasing amounts of carbon dioxide dissolving in the oceans leading to lower seawater pH. We studied the effects of lowered pH on the calanoid copepod Eurytemora affinis during a mesocosm experiment conducted in a coastal area of the Baltic Sea. We measured copepod reproductive success as a function of pH, chlorophyll a concentration, diatom and dinoflagellate biomass, carbon to nitrogen (C : N) ratio of suspended particulate organic matter, as well as copepod fatty acid composition. The laboratory-based experiment was repeated four times during 4 consecutive weeks, with water and copepods sampled from pelagic mesocosms enriched with different CO2 concentrations. In addition, oxygen radical absorbance capacity (ORAC) of animals from the mesocosms was measured weekly to test whether the copepod's defence against oxidative stress was affected by pH. We found no effect of pH on offspring production. Phytoplankton biomass, as indicated by chlorophyll a concentration and dinoflagellate biomass, had a positive effect. The concentration of polyunsaturated fatty acids in the females was reflected in the eggs and had a positive effect on offspring production, whereas monounsaturated fatty acids of the females were reflected in their eggs but had no significant effect. ORAC was not affected by pH. From these experiments we conclude that E. affinis seems robust against direct exposure to ocean acidification on a physiological level, for the variables covered in the study. E. affinis may not have faced acute pH stress in the treatments as the species naturally face large pH fluctuations. Peer reviewed Article in Journal/Newspaper Ocean acidification Copepods HELDA – University of Helsinki Open Repository Biogeosciences 13 4 1037 1048 |