Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages.
International audience The study of early life stages such as larval development, settlement, survivorship, and recruit growth iscritical to better understand the resilience and persistence of coral populations. While the deleterious effectsof ocean acidification on calcification and growth on adult...
Main Authors: | , , , |
---|---|
Other Authors: | , , , |
Format: | Conference Object |
Language: | English |
Published: |
HAL CCSD
2022
|
Subjects: | |
Online Access: | https://hal.science/hal-03979455 |
id |
ftunivcotedazur:oai:HAL:hal-03979455v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivcotedazur:oai:HAL:hal-03979455v1 2023-05-15T17:50:52+02:00 Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. Carbonne, Chloé Comeau, Steeve Plichon, Keyla Gattuso, Jean-Pierre Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Université Côte d'Azur (UCA) Bremen, Germany 2022-07-03 https://hal.science/hal-03979455 en eng HAL CCSD hal-03979455 https://hal.science/hal-03979455 15th international coral reef symposium https://hal.science/hal-03979455 15th international coral reef symposium, Jul 2022, Bremen, Germany [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2022 ftunivcotedazur 2023-03-14T23:49:32Z International audience The study of early life stages such as larval development, settlement, survivorship, and recruit growth iscritical to better understand the resilience and persistence of coral populations. While the deleterious effectsof ocean acidification on calcification and growth on adult corals are well known, the impacts on early lifestages are still poorly documented. Here, we investigate whether past-exposure of parental colonies tonaturally acidified environments at CO2 vents can increase the offspring's tolerance to low pH. Larvae of theMediterranean azooxanthellate coral Astroides calycularis were obtained from parent colonies collected fromlow and ambient pH sites in Ischia, Italy. Larvae were exposed in the laboratory to three pH treatments:ambient (pHT ~8.05), low (pHT ~7.7, pH projected for the end of the century under RCP 8.5) and extreme low(pHT ~7.5, pH as extreme condition, only for the larvae from the CO2 vent site). Several traits of the early lifestages were monitored for 5 months: larval size, settlement success, survival and growth of the recruits. Keydifferences were observed between the site of origin of the larvae. For instance, larvae from the CO2 ventsite were shorter and exhibited a higher rate of mortality than the larvae from the ambient pH site regardlessof the pH treatment they were exposed to. Also, larvae from the CO2 vent site had a lower settlementsuccess at low and extreme low pH. Our results suggest that future acidification conditions will have animpact on survival and settlement of early life stages. These findings provide new insights into coralrecruitment and the ability to respond to present and future ocean acidification conditions Conference Object Ocean acidification HAL Université Côte d'Azur |
institution |
Open Polar |
collection |
HAL Université Côte d'Azur |
op_collection_id |
ftunivcotedazur |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Carbonne, Chloé Comeau, Steeve Plichon, Keyla Gattuso, Jean-Pierre Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience The study of early life stages such as larval development, settlement, survivorship, and recruit growth iscritical to better understand the resilience and persistence of coral populations. While the deleterious effectsof ocean acidification on calcification and growth on adult corals are well known, the impacts on early lifestages are still poorly documented. Here, we investigate whether past-exposure of parental colonies tonaturally acidified environments at CO2 vents can increase the offspring's tolerance to low pH. Larvae of theMediterranean azooxanthellate coral Astroides calycularis were obtained from parent colonies collected fromlow and ambient pH sites in Ischia, Italy. Larvae were exposed in the laboratory to three pH treatments:ambient (pHT ~8.05), low (pHT ~7.7, pH projected for the end of the century under RCP 8.5) and extreme low(pHT ~7.5, pH as extreme condition, only for the larvae from the CO2 vent site). Several traits of the early lifestages were monitored for 5 months: larval size, settlement success, survival and growth of the recruits. Keydifferences were observed between the site of origin of the larvae. For instance, larvae from the CO2 ventsite were shorter and exhibited a higher rate of mortality than the larvae from the ambient pH site regardlessof the pH treatment they were exposed to. Also, larvae from the CO2 vent site had a lower settlementsuccess at low and extreme low pH. Our results suggest that future acidification conditions will have animpact on survival and settlement of early life stages. These findings provide new insights into coralrecruitment and the ability to respond to present and future ocean acidification conditions |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Université Côte d'Azur (UCA) |
format |
Conference Object |
author |
Carbonne, Chloé Comeau, Steeve Plichon, Keyla Gattuso, Jean-Pierre |
author_facet |
Carbonne, Chloé Comeau, Steeve Plichon, Keyla Gattuso, Jean-Pierre |
author_sort |
Carbonne, Chloé |
title |
Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. |
title_short |
Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. |
title_full |
Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. |
title_fullStr |
Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. |
title_full_unstemmed |
Parental exposure to natural CO2 vents alters the response to low pH of atemperate coral early life stages. |
title_sort |
parental exposure to natural co2 vents alters the response to low ph of atemperate coral early life stages. |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03979455 |
op_coverage |
Bremen, Germany |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
15th international coral reef symposium https://hal.science/hal-03979455 15th international coral reef symposium, Jul 2022, Bremen, Germany |
op_relation |
hal-03979455 https://hal.science/hal-03979455 |
_version_ |
1766157778092556288 |