Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications
As an important component of the coastal-offshore ecosystem, Pyropia haitanensis aquaculture is continually being challenged due to rapid environmental changes because of global climate change and anthropogenic pressures. To explore the effect of nutrient availability on carbon metabolism by P. hait...
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| Format: | Article |
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Frontiers Media S.A.
2021-07-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2021.696938/full |
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| author | Ningning Xu Ningning Xu Ningning Xu Wenlei Wang Wenlei Wang Wenlei Wang Yan Xu Yan Xu Yan Xu Dehua Ji Dehua Ji Dehua Ji Changsheng Chen Changsheng Chen Changsheng Chen Chaotian Xie Chaotian Xie Chaotian Xie Kai Xu Kai Xu Kai Xu |
| author_facet | Ningning Xu Ningning Xu Ningning Xu Wenlei Wang Wenlei Wang Wenlei Wang Yan Xu Yan Xu Yan Xu Dehua Ji Dehua Ji Dehua Ji Changsheng Chen Changsheng Chen Changsheng Chen Chaotian Xie Chaotian Xie Chaotian Xie Kai Xu Kai Xu Kai Xu |
| author_sort | Ningning Xu |
| collection | DOAJ |
| description | As an important component of the coastal-offshore ecosystem, Pyropia haitanensis aquaculture is continually being challenged due to rapid environmental changes because of global climate change and anthropogenic pressures. To explore the effect of nutrient availability on carbon metabolism by P. haitanensis, two strains of thalli were incubated for 15 days under four different concentrations of nitrogen and phosphorus. Significant increases in carbon, nitrogen, and phosphorus contents were observed in the algal tissue after the nitrates and phosphates enrichment, leading to elemental stoichiometry gradually approaching the Redfield ratio. Our results also showed a positive correlation between carbon or phosphorous accumulation and growth rate. Furthermore, under the natural seawater conditions, the release rates of dissolved organic carbon (DOC) and particulate organic carbon (POC) were highest, and more DOC was released than POC. The release rates tended to decrease with nutrient enrichment. The average proportions of DOC compared to total carbon were 6.3%–25.7%, while the average proportions of POC compared to total carbon were 2.1%–5.4%. Our results support the proposed importance of P. haitanensis in contributing the DOC and POC that play a significant role in the biological carbon pump and in sustaining marine aquaculture ecosystems in eutrophic environments. |
| first_indexed | 2024-12-20T02:27:58Z |
| format | Article |
| id | doaj.art-7645f6f688304ed1aede1fb526c2999c |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-20T02:27:58Z |
| publishDate | 2021-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-7645f6f688304ed1aede1fb526c2999c2022-12-21T19:56:39ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452021-07-01810.3389/fmars.2021.696938696938Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its ImplicationsNingning Xu0Ningning Xu1Ningning Xu2Wenlei Wang3Wenlei Wang4Wenlei Wang5Yan Xu6Yan Xu7Yan Xu8Dehua Ji9Dehua Ji10Dehua Ji11Changsheng Chen12Changsheng Chen13Changsheng Chen14Chaotian Xie15Chaotian Xie16Chaotian Xie17Kai Xu18Kai Xu19Kai Xu20Fisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaFisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaFisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaFisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaFisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaFisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaFisheries College, Jimei University, Xiamen, ChinaKey Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, ChinaFujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, ChinaAs an important component of the coastal-offshore ecosystem, Pyropia haitanensis aquaculture is continually being challenged due to rapid environmental changes because of global climate change and anthropogenic pressures. To explore the effect of nutrient availability on carbon metabolism by P. haitanensis, two strains of thalli were incubated for 15 days under four different concentrations of nitrogen and phosphorus. Significant increases in carbon, nitrogen, and phosphorus contents were observed in the algal tissue after the nitrates and phosphates enrichment, leading to elemental stoichiometry gradually approaching the Redfield ratio. Our results also showed a positive correlation between carbon or phosphorous accumulation and growth rate. Furthermore, under the natural seawater conditions, the release rates of dissolved organic carbon (DOC) and particulate organic carbon (POC) were highest, and more DOC was released than POC. The release rates tended to decrease with nutrient enrichment. The average proportions of DOC compared to total carbon were 6.3%–25.7%, while the average proportions of POC compared to total carbon were 2.1%–5.4%. Our results support the proposed importance of P. haitanensis in contributing the DOC and POC that play a significant role in the biological carbon pump and in sustaining marine aquaculture ecosystems in eutrophic environments.https://www.frontiersin.org/articles/10.3389/fmars.2021.696938/fullPyropia haitanensiseutrophicationparticulate organic carbondissolved organic carbonelemental ratiotissue carbon |
| spellingShingle | Ningning Xu Ningning Xu Ningning Xu Wenlei Wang Wenlei Wang Wenlei Wang Yan Xu Yan Xu Yan Xu Dehua Ji Dehua Ji Dehua Ji Changsheng Chen Changsheng Chen Changsheng Chen Chaotian Xie Chaotian Xie Chaotian Xie Kai Xu Kai Xu Kai Xu Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications Frontiers in Marine Science Pyropia haitanensis eutrophication particulate organic carbon dissolved organic carbon elemental ratio tissue carbon |
| title | Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications |
| title_full | Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications |
| title_fullStr | Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications |
| title_full_unstemmed | Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications |
| title_short | Effects of Nutrient Availability on the Release of Dissolved and Particulate Organic Carbon by Pyropia haitanensis and Its Implications |
| title_sort | effects of nutrient availability on the release of dissolved and particulate organic carbon by pyropia haitanensis and its implications |
| topic | Pyropia haitanensis eutrophication particulate organic carbon dissolved organic carbon elemental ratio tissue carbon |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2021.696938/full |
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