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 (CO(2)) concentration is almost entirely limited to single species responses. OA consequences for food web interactions are, however, still unknown. Indirect OA effec...
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ftdoajarticles:oai:doaj.org/article:61bf3c8083594404aca4dcc23e3125d6 2023-05-15T17:50:44+02:00 Ocean acidification-induced food quality deterioration constrains trophic transfer. Dennis Rossoll Rafael Bermúdez Helena Hauss Kai G Schulz Ulf Riebesell Ulrich Sommer Monika Winder 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0034737 https://doaj.org/article/61bf3c8083594404aca4dcc23e3125d6 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3324536?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0034737 https://doaj.org/article/61bf3c8083594404aca4dcc23e3125d6 PLoS ONE, Vol 7, Iss 4, p e34737 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0034737 2022-12-31T03:56:00Z Our present understanding of ocean acidification (OA) impacts on marine organisms caused by rapidly rising atmospheric carbon dioxide (CO(2)) 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 CO(2) 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) pCO(2) 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 CO(2). This rapid and reversible CO(2)-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. Article in Journal/Newspaper Ocean acidification Copepods Directory of Open Access Journals: DOAJ Articles PLoS ONE 7 4 e34737 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Dennis Rossoll Rafael Bermúdez Helena Hauss Kai G Schulz Ulf Riebesell Ulrich Sommer Monika Winder Ocean acidification-induced food quality deterioration constrains trophic transfer. |
topic_facet |
Medicine R Science Q |
description |
Our present understanding of ocean acidification (OA) impacts on marine organisms caused by rapidly rising atmospheric carbon dioxide (CO(2)) 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 CO(2) 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) pCO(2) 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 CO(2). This rapid and reversible CO(2)-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 |
Article in Journal/Newspaper |
author |
Dennis Rossoll Rafael Bermúdez Helena Hauss Kai G Schulz Ulf Riebesell Ulrich Sommer Monika Winder |
author_facet |
Dennis Rossoll Rafael Bermúdez Helena Hauss Kai G Schulz Ulf Riebesell Ulrich Sommer Monika Winder |
author_sort |
Dennis Rossoll |
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 (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0034737 https://doaj.org/article/61bf3c8083594404aca4dcc23e3125d6 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_source |
PLoS ONE, Vol 7, Iss 4, p e34737 (2012) |
op_relation |
http://europepmc.org/articles/PMC3324536?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0034737 https://doaj.org/article/61bf3c8083594404aca4dcc23e3125d6 |
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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4 |
container_start_page |
e34737 |
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