The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats
As concerns about ocean acidification continue to grow, the importance of macroalgal communities in buffering coastal seawater biogeochemistry through their metabolisms is gaining more attention. However, studies on diel and seasonal fluctuations in seawater chemistry within these communities are st...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.857153/full |
| _version_ | 1818055967040864256 |
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| author | Huiru Li Hanbi Moon Hanbi Moon Eun Ju Kang Ja-Myung Kim Miok Kim Kitack Lee Cheol-Woo Kwak Haryun Kim Il-Nam Kim Ki Yeol Park Young Kweon Lee Ji Woong Jin Matthew S. Edwards Ju-Hyoung Kim |
| author_facet | Huiru Li Hanbi Moon Hanbi Moon Eun Ju Kang Ja-Myung Kim Miok Kim Kitack Lee Cheol-Woo Kwak Haryun Kim Il-Nam Kim Ki Yeol Park Young Kweon Lee Ji Woong Jin Matthew S. Edwards Ju-Hyoung Kim |
| author_sort | Huiru Li |
| collection | DOAJ |
| description | As concerns about ocean acidification continue to grow, the importance of macroalgal communities in buffering coastal seawater biogeochemistry through their metabolisms is gaining more attention. However, studies on diel and seasonal fluctuations in seawater chemistry within these communities are still rare. Here, we characterized the spatial and temporal heterogeneity in diel and seasonal dynamics of seawater carbonate chemistry and dissolved oxygen (DO) in three types of macroalgal habitats (UAM: ulvoid algal mat dominated, TAM: turf algal mat dominated, and SC: Sargassum horneri and coralline algae dominated). Our results show that diel fluctuations in carbonate parameters and DO varied significantly among habitat types and seasons due to differences in their biological metabolisms (photosynthesis and calcification) and each site’s hydrological characteristics. Specifically, carbonate parameters were most affected by biological metabolisms at the SC site, and by environmental variables at the UAM site. Also, we demonstrate that macroalgal communities reduced ocean acidification conditions when ocean temperatures supported photosynthesis and thereby the absorption of dissolved inorganic carbon. However, once temperatures exceeded the optimum ranges for macroalgae, respiration within these communities exceeded photosynthesis and increased CO2 concentrations, thereby exacerbating ocean acidification conditions. We conclude that the seawater carbonate chemistry is strongly influenced by the metabolisms of the dominant macroalgae within these different habitat types, which may, in turn, alter their buffering capacity against ocean acidification. |
| first_indexed | 2024-12-10T12:21:21Z |
| format | Article |
| id | doaj.art-441e0c9a023a4e64a51a76acbed8a5ba |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-10T12:21:21Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-441e0c9a023a4e64a51a76acbed8a5ba2022-12-22T01:49:04ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-05-01910.3389/fmars.2022.857153857153The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal HabitatsHuiru Li0Hanbi Moon1Hanbi Moon2Eun Ju Kang3Ja-Myung Kim4Miok Kim5Kitack Lee6Cheol-Woo Kwak7Haryun Kim8Il-Nam Kim9Ki Yeol Park10Young Kweon Lee11Ji Woong Jin12Matthew S. Edwards13Ju-Hyoung Kim14Department of Aquaculture and Aquatic Science, Kunsan National University, Gunsan, South KoreaDepartment of Aquaculture and Aquatic Science, Kunsan National University, Gunsan, South KoreaEast Sea Research Institute, Korea Institute of Ocean Science & Technology, Uljin, South KoreaDepartment of Aquaculture and Aquatic Science, Kunsan National University, Gunsan, South KoreaDivision of Environmental Science and Engineering, Pohang University of Science & Technology, Pohang, South KoreaDivision of Environmental Science and Engineering, Pohang University of Science & Technology, Pohang, South KoreaDivision of Environmental Science and Engineering, Pohang University of Science & Technology, Pohang, South KoreaKorea Marine Environment & Ecology Research Institute, Bucheon, South KoreaEast Sea Research Institute, Korea Institute of Ocean Science & Technology, Uljin, South KoreaDepartment of Marine Science, Incheon National University, Incheon, South KoreaEcological Restoration Division, Korea Fisheries Resources Agency (East Sea Branch), Pohang, South KoreaEcological Restoration Division, Korea Fisheries Resources Agency (East Sea Branch), Pohang, South KoreaEcological Restoration Division, Korea Fisheries Resources Agency (East Sea Branch), Pohang, South KoreaDepartment of Biology, San Diego State University, San Diego, CA, United StatesDepartment of Aquaculture and Aquatic Science, Kunsan National University, Gunsan, South KoreaAs concerns about ocean acidification continue to grow, the importance of macroalgal communities in buffering coastal seawater biogeochemistry through their metabolisms is gaining more attention. However, studies on diel and seasonal fluctuations in seawater chemistry within these communities are still rare. Here, we characterized the spatial and temporal heterogeneity in diel and seasonal dynamics of seawater carbonate chemistry and dissolved oxygen (DO) in three types of macroalgal habitats (UAM: ulvoid algal mat dominated, TAM: turf algal mat dominated, and SC: Sargassum horneri and coralline algae dominated). Our results show that diel fluctuations in carbonate parameters and DO varied significantly among habitat types and seasons due to differences in their biological metabolisms (photosynthesis and calcification) and each site’s hydrological characteristics. Specifically, carbonate parameters were most affected by biological metabolisms at the SC site, and by environmental variables at the UAM site. Also, we demonstrate that macroalgal communities reduced ocean acidification conditions when ocean temperatures supported photosynthesis and thereby the absorption of dissolved inorganic carbon. However, once temperatures exceeded the optimum ranges for macroalgae, respiration within these communities exceeded photosynthesis and increased CO2 concentrations, thereby exacerbating ocean acidification conditions. We conclude that the seawater carbonate chemistry is strongly influenced by the metabolisms of the dominant macroalgae within these different habitat types, which may, in turn, alter their buffering capacity against ocean acidification.https://www.frontiersin.org/articles/10.3389/fmars.2022.857153/fullbiogeochemical interactioncarbonate chemistrydissolved oxygendiel fluctuationmacroalgal habitat |
| spellingShingle | Huiru Li Hanbi Moon Hanbi Moon Eun Ju Kang Ja-Myung Kim Miok Kim Kitack Lee Cheol-Woo Kwak Haryun Kim Il-Nam Kim Ki Yeol Park Young Kweon Lee Ji Woong Jin Matthew S. Edwards Ju-Hyoung Kim The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats Frontiers in Marine Science biogeochemical interaction carbonate chemistry dissolved oxygen diel fluctuation macroalgal habitat |
| title | The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats |
| title_full | The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats |
| title_fullStr | The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats |
| title_full_unstemmed | The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats |
| title_short | The Diel and Seasonal Heterogeneity of Carbonate Chemistry and Dissolved Oxygen in Three Types of Macroalgal Habitats |
| title_sort | diel and seasonal heterogeneity of carbonate chemistry and dissolved oxygen in three types of macroalgal habitats |
| topic | biogeochemical interaction carbonate chemistry dissolved oxygen diel fluctuation macroalgal habitat |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.857153/full |
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