Have we been underestimating the effects of ocean acidification in zooplankton?
Abstract Understanding how copepods may respond to ocean acidification (OA) is critical for risk assessments of ocean ecology and biogeochemistry. The perception that copepods are insensitive to OA is largely based on experiments with adult females. Their apparent resilience to increased carbon diox...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2014
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/gcb.12582 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12582 |
id |
crwiley:10.1111/gcb.12582 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/gcb.12582 2024-10-13T14:10:00+00:00 Have we been underestimating the effects of ocean acidification in zooplankton? Cripps, Gemma Lindeque, Penelope Flynn, Kevin J. Natural Environmental Research Council 2014 http://dx.doi.org/10.1111/gcb.12582 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12582 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Global Change Biology volume 20, issue 11, page 3377-3385 ISSN 1354-1013 1365-2486 journal-article 2014 crwiley https://doi.org/10.1111/gcb.12582 2024-09-17T04:45:00Z Abstract Understanding how copepods may respond to ocean acidification (OA) is critical for risk assessments of ocean ecology and biogeochemistry. The perception that copepods are insensitive to OA is largely based on experiments with adult females. Their apparent resilience to increased carbon dioxide ( pCO 2 ) concentrations has supported the view that copepods are ‘winners’ under OA. Here, we show that this conclusion is not robust, that sensitivity across different life stages is significantly misrepresented by studies solely using adult females. Stage‐specific responses to pCO 2 (385–6000 μatm) were studied across different life stages of a calanoid copepod, monitoring for lethal and sublethal responses. Mortality rates varied significantly across the different life stages, with nauplii showing the highest lethal effects; nauplii mortality rates increased threefold when pCO 2 concentrations reached 1000 μatm (year 2100 scenario) with LC 50 at 1084 μatm pCO 2 . In comparison, eggs, early copepodite stages, and adult males and females were not affected lethally until pCO 2 concentrations ≥3000 μatm. Adverse effects on reproduction were found, with >35% decline in nauplii recruitment at 1000 μatm pCO 2 . This suppression of reproductive scope, coupled with the decreased survival of early stage progeny at this pCO 2 concentration, has clear potential to damage population growth dynamics in this species. The disparity in responses seen across the different developmental stages emphasizes the need for a holistic life‐cycle approach to make species‐level projections to climate change. Significant misrepresentation and error propagation can develop from studies which attempt to project outcomes to future OA conditions solely based on single life history stage exposures. Article in Journal/Newspaper Ocean acidification Copepods Wiley Online Library Global Change Biology 20 11 3377 3385 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Understanding how copepods may respond to ocean acidification (OA) is critical for risk assessments of ocean ecology and biogeochemistry. The perception that copepods are insensitive to OA is largely based on experiments with adult females. Their apparent resilience to increased carbon dioxide ( pCO 2 ) concentrations has supported the view that copepods are ‘winners’ under OA. Here, we show that this conclusion is not robust, that sensitivity across different life stages is significantly misrepresented by studies solely using adult females. Stage‐specific responses to pCO 2 (385–6000 μatm) were studied across different life stages of a calanoid copepod, monitoring for lethal and sublethal responses. Mortality rates varied significantly across the different life stages, with nauplii showing the highest lethal effects; nauplii mortality rates increased threefold when pCO 2 concentrations reached 1000 μatm (year 2100 scenario) with LC 50 at 1084 μatm pCO 2 . In comparison, eggs, early copepodite stages, and adult males and females were not affected lethally until pCO 2 concentrations ≥3000 μatm. Adverse effects on reproduction were found, with >35% decline in nauplii recruitment at 1000 μatm pCO 2 . This suppression of reproductive scope, coupled with the decreased survival of early stage progeny at this pCO 2 concentration, has clear potential to damage population growth dynamics in this species. The disparity in responses seen across the different developmental stages emphasizes the need for a holistic life‐cycle approach to make species‐level projections to climate change. Significant misrepresentation and error propagation can develop from studies which attempt to project outcomes to future OA conditions solely based on single life history stage exposures. |
author2 |
Natural Environmental Research Council |
format |
Article in Journal/Newspaper |
author |
Cripps, Gemma Lindeque, Penelope Flynn, Kevin J. |
spellingShingle |
Cripps, Gemma Lindeque, Penelope Flynn, Kevin J. Have we been underestimating the effects of ocean acidification in zooplankton? |
author_facet |
Cripps, Gemma Lindeque, Penelope Flynn, Kevin J. |
author_sort |
Cripps, Gemma |
title |
Have we been underestimating the effects of ocean acidification in zooplankton? |
title_short |
Have we been underestimating the effects of ocean acidification in zooplankton? |
title_full |
Have we been underestimating the effects of ocean acidification in zooplankton? |
title_fullStr |
Have we been underestimating the effects of ocean acidification in zooplankton? |
title_full_unstemmed |
Have we been underestimating the effects of ocean acidification in zooplankton? |
title_sort |
have we been underestimating the effects of ocean acidification in zooplankton? |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/gcb.12582 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12582 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_source |
Global Change Biology volume 20, issue 11, page 3377-3385 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.12582 |
container_title |
Global Change Biology |
container_volume |
20 |
container_issue |
11 |
container_start_page |
3377 |
op_container_end_page |
3385 |
_version_ |
1812817113765642240 |