Variable Individual- and Population- Level Responses to Ocean Acidification
Population responses to marine climate change are determined by the strength of the selection pressure imposed by changing climate, the genetic variability within the population (i.e., among individuals), and phenotypic plasticity within individuals. Marine climate change research has focused primar...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Frontiers Media
2016
|
Subjects: | |
Online Access: | http://hdl.handle.net/10261/152935 https://doi.org/10.3389/fmars.2016.00051 https://doi.org/10.13039/501100000780 |
id |
ftcsic:oai:digital.csic.es:10261/152935 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/152935 2024-02-11T10:01:40+01:00 Variable Individual- and Population- Level Responses to Ocean Acidification Vihtakari, Mikko Havenhand, Jon N. Renaud, Paul E. Hendriks, Iris E. European Commission Swedish Research Council 2016-04-29 http://hdl.handle.net/10261/152935 https://doi.org/10.3389/fmars.2016.00051 https://doi.org/10.13039/501100000780 unknown Frontiers Media #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/226248 Publisher's version http://dx.doi.org/10.3389/fmars.2016.00051 Sí Front. Mar. Sci. 3: 51 (2016) 2296-7745 http://hdl.handle.net/10261/152935 doi:10.3389/fmars.2016.00051 http://dx.doi.org/10.13039/501100000780 open artículo http://purl.org/coar/resource_type/c_6501 2016 ftcsic https://doi.org/10.3389/fmars.2016.0005110.13039/501100000780 2024-01-16T10:24:38Z Population responses to marine climate change are determined by the strength of the selection pressure imposed by changing climate, the genetic variability within the population (i.e., among individuals), and phenotypic plasticity within individuals. Marine climate change research has focused primarily on population-level responses, yet it is at the level of the individual that natural selection operates. We studied individual-level responses of two bivalve species to ocean acidification (OA) at the earliest stage of the life-cycle. We measured sperm activity (swimming speed and percent motility) in the Boreal/Arctic Macoma calcarea and the temperate Mytilus galloprovincialis in response to two pCO2 levels (380 and 1000 ppm) at the ambient temperature at the collection site, i.e., 2 and 16°C, respectively. We also assessed sperm longevity under control conditions. Treatment effects on fertilization success were estimated using fertilization models. At the population level, simulated OA reduced M. galloprovincialis sperm swimming speed by 30%, percent motility by 44%, and fertilization success by 43%, whereas only sperm swimming speed was significantly affected in M. calcarea. Both species showed substantial variability among individuals in response to increased pCO2. This variability was greatest in M. galloprovincialis ranging from non-significant effect to more than 73% reduction in fertilization success in response to OA, whereas M. calcarea responses varied from 8% increase in percent sperm motility to 26% reduction in swimming speed. Further, modeled fertilization success was negatively affected by simulated OA in 10 of 13 studied M. galloprovincialis males and in three of 10 M. calcarea males. We observed sperm longevities (82 h for M. calcarea and 25 h for M. galloprovincialis on average) far longer than the expected time-frame for efficient fertilization accounting for dilution of gametes. Assuming sperm activity is a heritable trait, natural selection might be a possible way for the studied populations ... Article in Journal/Newspaper Arctic Climate change Ocean acidification Digital.CSIC (Spanish National Research Council) Arctic Frontiers in Marine Science 3 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
Population responses to marine climate change are determined by the strength of the selection pressure imposed by changing climate, the genetic variability within the population (i.e., among individuals), and phenotypic plasticity within individuals. Marine climate change research has focused primarily on population-level responses, yet it is at the level of the individual that natural selection operates. We studied individual-level responses of two bivalve species to ocean acidification (OA) at the earliest stage of the life-cycle. We measured sperm activity (swimming speed and percent motility) in the Boreal/Arctic Macoma calcarea and the temperate Mytilus galloprovincialis in response to two pCO2 levels (380 and 1000 ppm) at the ambient temperature at the collection site, i.e., 2 and 16°C, respectively. We also assessed sperm longevity under control conditions. Treatment effects on fertilization success were estimated using fertilization models. At the population level, simulated OA reduced M. galloprovincialis sperm swimming speed by 30%, percent motility by 44%, and fertilization success by 43%, whereas only sperm swimming speed was significantly affected in M. calcarea. Both species showed substantial variability among individuals in response to increased pCO2. This variability was greatest in M. galloprovincialis ranging from non-significant effect to more than 73% reduction in fertilization success in response to OA, whereas M. calcarea responses varied from 8% increase in percent sperm motility to 26% reduction in swimming speed. Further, modeled fertilization success was negatively affected by simulated OA in 10 of 13 studied M. galloprovincialis males and in three of 10 M. calcarea males. We observed sperm longevities (82 h for M. calcarea and 25 h for M. galloprovincialis on average) far longer than the expected time-frame for efficient fertilization accounting for dilution of gametes. Assuming sperm activity is a heritable trait, natural selection might be a possible way for the studied populations ... |
author2 |
European Commission Swedish Research Council |
format |
Article in Journal/Newspaper |
author |
Vihtakari, Mikko Havenhand, Jon N. Renaud, Paul E. Hendriks, Iris E. |
spellingShingle |
Vihtakari, Mikko Havenhand, Jon N. Renaud, Paul E. Hendriks, Iris E. Variable Individual- and Population- Level Responses to Ocean Acidification |
author_facet |
Vihtakari, Mikko Havenhand, Jon N. Renaud, Paul E. Hendriks, Iris E. |
author_sort |
Vihtakari, Mikko |
title |
Variable Individual- and Population- Level Responses to Ocean Acidification |
title_short |
Variable Individual- and Population- Level Responses to Ocean Acidification |
title_full |
Variable Individual- and Population- Level Responses to Ocean Acidification |
title_fullStr |
Variable Individual- and Population- Level Responses to Ocean Acidification |
title_full_unstemmed |
Variable Individual- and Population- Level Responses to Ocean Acidification |
title_sort |
variable individual- and population- level responses to ocean acidification |
publisher |
Frontiers Media |
publishDate |
2016 |
url |
http://hdl.handle.net/10261/152935 https://doi.org/10.3389/fmars.2016.00051 https://doi.org/10.13039/501100000780 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Ocean acidification |
genre_facet |
Arctic Climate change Ocean acidification |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/226248 Publisher's version http://dx.doi.org/10.3389/fmars.2016.00051 Sí Front. Mar. Sci. 3: 51 (2016) 2296-7745 http://hdl.handle.net/10261/152935 doi:10.3389/fmars.2016.00051 http://dx.doi.org/10.13039/501100000780 |
op_rights |
open |
op_doi |
https://doi.org/10.3389/fmars.2016.0005110.13039/501100000780 |
container_title |
Frontiers in Marine Science |
container_volume |
3 |
_version_ |
1790597481581510656 |