Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral
Natural processes such as upwelling of deeper-water masses change the physical-chemical conditions of the water column creating localized ocean acidification events that can have an impact on the natural communities. This study was performed in a coral reef system of an archetypical bay within the T...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Oceans |
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| Online Access: | https://www.mdpi.com/2673-1924/4/2/12 |
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| author | Carlos E. Gómez Andrés Acosta-Chaparro Cesar A. Bernal Diana I. Gómez-López Raúl Navas-Camacho David Alonso |
| author_facet | Carlos E. Gómez Andrés Acosta-Chaparro Cesar A. Bernal Diana I. Gómez-López Raúl Navas-Camacho David Alonso |
| author_sort | Carlos E. Gómez |
| collection | DOAJ |
| description | Natural processes such as upwelling of deeper-water masses change the physical-chemical conditions of the water column creating localized ocean acidification events that can have an impact on the natural communities. This study was performed in a coral reef system of an archetypical bay within the Tayrona National Natural Park (PNNT) (Colombia), and aimed to quantify net calcification rates of a foundational coral species within a temporal context (6 months) taking into account the dynamics of seasonal upwelling that influence the study area. Net calcification rates of coral fragments were obtained in situ by the alkalinity anomaly technique in short-term incubations (~2.5 h). We found a significant effect of the upwelling on net calcification rates (<i>Gnet</i>) (<i>p</i> < 0.05) with an 42% increase in CaCO<sub>3</sub> accretion compared to non-upwelling season. We found an increase in total alkalinity (A<sub>T</sub>) and dissolved inorganic carbon (DIC) with decreased aragonite saturation (Ω<sub>ara</sub>) for the upwelling months, indicating an influence of the Subtropical Under Water mass (SAW) in the PNNT coral community. Significant negative correlations between net calcification with temperature and Ω<sub>ara</sub>, which indicates a positive response of <i>M. auretenra</i> with the upwelling conditions, thus, acting as “enhancer” of resilience for coral calcification. |
| first_indexed | 2024-03-11T02:03:56Z |
| format | Article |
| id | doaj.art-2345dbfa0ee043a689fa2ced67dac093 |
| institution | Directory Open Access Journal |
| issn | 2673-1924 |
| language | English |
| last_indexed | 2024-03-11T02:03:56Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Oceans |
| spelling | doaj.art-2345dbfa0ee043a689fa2ced67dac0932023-11-18T11:58:12ZengMDPI AGOceans2673-19242023-04-014217018410.3390/oceans4020012Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian CoralCarlos E. Gómez0Andrés Acosta-Chaparro1Cesar A. Bernal2Diana I. Gómez-López3Raúl Navas-Camacho4David Alonso5Programa de Biodiversidad y Ecosistemas Costeros-BEM, Instituto de Investigaciones Marinas y Costeras—INVEMAR, Santa Marta 470006, ColombiaPrograma de Biodiversidad y Ecosistemas Costeros-BEM, Instituto de Investigaciones Marinas y Costeras—INVEMAR, Santa Marta 470006, ColombiaPrograma de Calidad Ambiental Marina-CAM, Instituto de Investigaciones Marinas y Costeras—INVEMAR, Santa Marta 470006, ColombiaPrograma de Biodiversidad y Ecosistemas Costeros-BEM, Instituto de Investigaciones Marinas y Costeras—INVEMAR, Santa Marta 470006, ColombiaPrograma de Biodiversidad y Ecosistemas Costeros-BEM, Instituto de Investigaciones Marinas y Costeras—INVEMAR, Santa Marta 470006, ColombiaPrograma de Biodiversidad y Ecosistemas Costeros-BEM, Instituto de Investigaciones Marinas y Costeras—INVEMAR, Santa Marta 470006, ColombiaNatural processes such as upwelling of deeper-water masses change the physical-chemical conditions of the water column creating localized ocean acidification events that can have an impact on the natural communities. This study was performed in a coral reef system of an archetypical bay within the Tayrona National Natural Park (PNNT) (Colombia), and aimed to quantify net calcification rates of a foundational coral species within a temporal context (6 months) taking into account the dynamics of seasonal upwelling that influence the study area. Net calcification rates of coral fragments were obtained in situ by the alkalinity anomaly technique in short-term incubations (~2.5 h). We found a significant effect of the upwelling on net calcification rates (<i>Gnet</i>) (<i>p</i> < 0.05) with an 42% increase in CaCO<sub>3</sub> accretion compared to non-upwelling season. We found an increase in total alkalinity (A<sub>T</sub>) and dissolved inorganic carbon (DIC) with decreased aragonite saturation (Ω<sub>ara</sub>) for the upwelling months, indicating an influence of the Subtropical Under Water mass (SAW) in the PNNT coral community. Significant negative correlations between net calcification with temperature and Ω<sub>ara</sub>, which indicates a positive response of <i>M. auretenra</i> with the upwelling conditions, thus, acting as “enhancer” of resilience for coral calcification.https://www.mdpi.com/2673-1924/4/2/12carbonate chemistryocean acidificationcoral reefsouth-western Caribbean<i>Madracis auretenra</i> |
| spellingShingle | Carlos E. Gómez Andrés Acosta-Chaparro Cesar A. Bernal Diana I. Gómez-López Raúl Navas-Camacho David Alonso Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral Oceans carbonate chemistry ocean acidification coral reef south-western Caribbean <i>Madracis auretenra</i> |
| title | Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral |
| title_full | Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral |
| title_fullStr | Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral |
| title_full_unstemmed | Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral |
| title_short | Seasonal Upwelling Conditions Modulate the Calcification Response of a Tropical Scleractinian Coral |
| title_sort | seasonal upwelling conditions modulate the calcification response of a tropical scleractinian coral |
| topic | carbonate chemistry ocean acidification coral reef south-western Caribbean <i>Madracis auretenra</i> |
| url | https://www.mdpi.com/2673-1924/4/2/12 |
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