Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer
Our present understanding of ocean acidification (OA) impacts on marine organisms caused by rapidly rising atmospheric carbon dioxide (CO2) concentration is almost entirely limited to single species responses. OA consequences for food web interactions are, however, still unknown. Indirect OA effects...
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ftpubmed:oai:pubmedcentral.nih.gov:3324536 2023-05-15T17:50:40+02:00 Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer Rossoll, Dennis Bermúdez, Rafael Hauss, Helena Schulz, Kai G. Riebesell, Ulf Sommer, Ulrich Winder, Monika 2012-04-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324536 http://www.ncbi.nlm.nih.gov/pubmed/22509351 https://doi.org/10.1371/journal.pone.0034737 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324536 http://www.ncbi.nlm.nih.gov/pubmed/22509351 http://dx.doi.org/10.1371/journal.pone.0034737 Rossoll et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2012 ftpubmed https://doi.org/10.1371/journal.pone.0034737 2013-09-04T05:29:36Z Our present understanding of ocean acidification (OA) impacts on marine organisms caused by rapidly rising atmospheric carbon dioxide (CO2) concentration is almost entirely limited to single species responses. OA consequences for food web interactions are, however, still unknown. Indirect OA effects can be expected for consumers by changing the nutritional quality of their prey. We used a laboratory experiment to test potential OA effects on algal fatty acid (FA) composition and resulting copepod growth. We show that elevated CO2 significantly changed the FA concentration and composition of the diatom Thalassiosira pseudonana, which constrained growth and reproduction of the copepod Acartia tonsa. A significant decline in both total FAs (28.1 to 17.4 fg cell−1) and the ratio of long-chain polyunsaturated to saturated fatty acids (PUFA:SFA) of food algae cultured under elevated (750 µatm) compared to present day (380 µatm) pCO2 was directly translated to copepods. The proportion of total essential FAs declined almost tenfold in copepods and the contribution of saturated fatty acids (SFAs) tripled at high CO2. This rapid and reversible CO2-dependent shift in FA concentration and composition caused a decrease in both copepod somatic growth and egg production from 34 to 5 eggs female−1 day−1. Because the diatom-copepod link supports some of the most productive ecosystems in the world, our study demonstrates that OA can have far-reaching consequences for ocean food webs by changing the nutritional quality of essential macromolecules in primary producers that cascade up the food web. Text Ocean acidification Copepods PubMed Central (PMC) PLoS ONE 7 4 e34737 |
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Research Article Rossoll, Dennis Bermúdez, Rafael Hauss, Helena Schulz, Kai G. Riebesell, Ulf Sommer, Ulrich Winder, Monika Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer |
topic_facet |
Research Article |
description |
Our present understanding of ocean acidification (OA) impacts on marine organisms caused by rapidly rising atmospheric carbon dioxide (CO2) concentration is almost entirely limited to single species responses. OA consequences for food web interactions are, however, still unknown. Indirect OA effects can be expected for consumers by changing the nutritional quality of their prey. We used a laboratory experiment to test potential OA effects on algal fatty acid (FA) composition and resulting copepod growth. We show that elevated CO2 significantly changed the FA concentration and composition of the diatom Thalassiosira pseudonana, which constrained growth and reproduction of the copepod Acartia tonsa. A significant decline in both total FAs (28.1 to 17.4 fg cell−1) and the ratio of long-chain polyunsaturated to saturated fatty acids (PUFA:SFA) of food algae cultured under elevated (750 µatm) compared to present day (380 µatm) pCO2 was directly translated to copepods. The proportion of total essential FAs declined almost tenfold in copepods and the contribution of saturated fatty acids (SFAs) tripled at high CO2. This rapid and reversible CO2-dependent shift in FA concentration and composition caused a decrease in both copepod somatic growth and egg production from 34 to 5 eggs female−1 day−1. Because the diatom-copepod link supports some of the most productive ecosystems in the world, our study demonstrates that OA can have far-reaching consequences for ocean food webs by changing the nutritional quality of essential macromolecules in primary producers that cascade up the food web. |
format |
Text |
author |
Rossoll, Dennis Bermúdez, Rafael Hauss, Helena Schulz, Kai G. Riebesell, Ulf Sommer, Ulrich Winder, Monika |
author_facet |
Rossoll, Dennis Bermúdez, Rafael Hauss, Helena Schulz, Kai G. Riebesell, Ulf Sommer, Ulrich Winder, Monika |
author_sort |
Rossoll, Dennis |
title |
Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer |
title_short |
Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer |
title_full |
Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer |
title_fullStr |
Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer |
title_full_unstemmed |
Ocean Acidification-Induced Food Quality Deterioration Constrains Trophic Transfer |
title_sort |
ocean acidification-induced food quality deterioration constrains trophic transfer |
publisher |
Public Library of Science |
publishDate |
2012 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324536 http://www.ncbi.nlm.nih.gov/pubmed/22509351 https://doi.org/10.1371/journal.pone.0034737 |
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Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324536 http://www.ncbi.nlm.nih.gov/pubmed/22509351 http://dx.doi.org/10.1371/journal.pone.0034737 |
op_rights |
Rossoll et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0034737 |
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PLoS ONE |
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7 |
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e34737 |
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