Parental exposure to elevated pCO2 influences the reproductive success of copepods

Substantial variations are reported for egg production and hatching rates of copepods exposed to elevated carbon dioxide concentrations (pCO2). One possible explanation, as found in other marine taxa, is that prior parental exposure to elevated pCO2 (and/or decreased pH) affects reproductive perform...

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Main Authors:	Cripps, Gemma, Lindeque, Penelope, Flynn, Kevin
Format:	Online
Language:	English
Published:	Oxford University Press 2014
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4161228/

id	pubmed-4161228
recordtype	oai_dc
spelling	pubmed-41612282014-09-12 Parental exposure to elevated pCO2 influences the reproductive success of copepods Cripps, Gemma Lindeque, Penelope Flynn, Kevin Featured Article Substantial variations are reported for egg production and hatching rates of copepods exposed to elevated carbon dioxide concentrations (pCO2). One possible explanation, as found in other marine taxa, is that prior parental exposure to elevated pCO2 (and/or decreased pH) affects reproductive performance. Previous studies have adopted two distinct approaches, either (1) expose male and female copepoda to the test pCO2/pH scenarios, or (2) solely expose egg-laying females to the tests. Although the former approach is more realistic, the majority of studies have used the latter approach. Here, we investigated the variation in egg production and hatching success of Acartia tonsa between these two experimental designs, across five different pCO2 concentrations (385–6000 µatm pCO2). In addition, to determine the effect of pCO2 on the hatching success with no prior parental exposure, eggs produced and fertilized under ambient conditions were also exposed to these pCO2 scenarios. Significant variations were found between experimental designs, with approach (1) resulting in higher impacts; here >20% difference was seen in hatching success between experiments at 1000 µatm pCO2 scenarios (2100 year scenario), and >85% at 6000 µatm pCO2. This study highlights the potential to misrepresent the reproductive response of a species to elevated pCO2 dependent on parental exposure. Oxford University Press 2014-09 2014-06-19 /pmc/articles/PMC4161228/ /pubmed/25221371 http://dx.doi.org/10.1093/plankt/fbu052 Text en © The Author 2014. Published by Oxford University Press. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Cripps, Gemma Lindeque, Penelope Flynn, Kevin
spellingShingle	Cripps, Gemma Lindeque, Penelope Flynn, Kevin Parental exposure to elevated pCO2 influences the reproductive success of copepods
author_facet	Cripps, Gemma Lindeque, Penelope Flynn, Kevin
author_sort	Cripps, Gemma
title	Parental exposure to elevated pCO2 influences the reproductive success of copepods
title_short	Parental exposure to elevated pCO2 influences the reproductive success of copepods
title_full	Parental exposure to elevated pCO2 influences the reproductive success of copepods
title_fullStr	Parental exposure to elevated pCO2 influences the reproductive success of copepods
title_full_unstemmed	Parental exposure to elevated pCO2 influences the reproductive success of copepods
title_sort	parental exposure to elevated pco2 influences the reproductive success of copepods
description	Substantial variations are reported for egg production and hatching rates of copepods exposed to elevated carbon dioxide concentrations (pCO2). One possible explanation, as found in other marine taxa, is that prior parental exposure to elevated pCO2 (and/or decreased pH) affects reproductive performance. Previous studies have adopted two distinct approaches, either (1) expose male and female copepoda to the test pCO2/pH scenarios, or (2) solely expose egg-laying females to the tests. Although the former approach is more realistic, the majority of studies have used the latter approach. Here, we investigated the variation in egg production and hatching success of Acartia tonsa between these two experimental designs, across five different pCO2 concentrations (385–6000 µatm pCO2). In addition, to determine the effect of pCO2 on the hatching success with no prior parental exposure, eggs produced and fertilized under ambient conditions were also exposed to these pCO2 scenarios. Significant variations were found between experimental designs, with approach (1) resulting in higher impacts; here >20% difference was seen in hatching success between experiments at 1000 µatm pCO2 scenarios (2100 year scenario), and >85% at 6000 µatm pCO2. This study highlights the potential to misrepresent the reproductive response of a species to elevated pCO2 dependent on parental exposure.
publisher	Oxford University Press
publishDate	2014
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4161228/
_version_	1613133032956362752

Parental exposure to elevated pCO2 influences the reproductive success of copepods

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