Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China
Macroalgae provide food for microbial, meio- and macro-faunal communities in coastal ecosystems, thus mediating nutrient dynamics and functions in these ecosystems. Because of this vital role, it is important to clarify physiological information about macroalgae as it reflects their growth potential...
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| Format: | Article |
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MDPI AG
2023-07-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/7/1409 |
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| author | Quan He Linqing Liu Yujie Qin Qiang Lin Guangyan Ni Binbin Chen Zengling Ma Dinghui Zou Gang Li |
| author_facet | Quan He Linqing Liu Yujie Qin Qiang Lin Guangyan Ni Binbin Chen Zengling Ma Dinghui Zou Gang Li |
| author_sort | Quan He |
| collection | DOAJ |
| description | Macroalgae provide food for microbial, meio- and macro-faunal communities in coastal ecosystems, thus mediating nutrient dynamics and functions in these ecosystems. Because of this vital role, it is important to clarify physiological information about macroalgae as it reflects their growth potential in the field. In this study, we examined the biomass, pigment content, and photosynthetic O<sub>2</sub> evolution rate versus irradiance curves of 18 macroalgal species from the intertidal zone of the Guangdong–Hong Kong–Macao Greater Bay Area, China, and investigated their photosynthetic patterns in relation to phyla characteristics, morphology, and growth locations. The results showed that green algae had the highest maximum photosynthetic O<sub>2</sub> evolution rate (P<sub>max</sub>), light utilization efficiency (α), and dark respiration (R<sub>d</sub>) among the three macroalgal phyla; the sheet-like macroalgal species had the highest P<sub>max</sub>, α, and Rd among the four morphological categories. The macroalgal species in the upper intertidal zone showed higher P<sub>max</sub> and α and lower saturation irradiance (E<sub>K</sub>) and compensation irradiance (E<sub>C</sub>) than those species in the lower intertidal location. The PCA results showed that the biomass of sheet-like macroalgal species was positively correlated with factor PC1 (50.34%), and that of finely branched species was negatively correlated with factor PC2 (25.17%). In addition, our results indicate that the light absorption and utilization capabilities of macroalgae could determine whether they could dominate the intertidal zone and that their photosynthetic characteristics could be used as a potential indicator of their biomass distribution in the Greater Bay Area. |
| first_indexed | 2024-03-11T00:56:37Z |
| format | Article |
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| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T00:56:37Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
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| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-56dd0670120844bc98f496995880c06d2023-11-18T19:59:51ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-07-01117140910.3390/jmse11071409Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, ChinaQuan He0Linqing Liu1Yujie Qin2Qiang Lin3Guangyan Ni4Binbin Chen5Zengling Ma6Dinghui Zou7Gang Li8School of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaKey Laboratory of Tropical Marine Bio-Resources and Ecology, Key Laboratory of Science and Technology on Operational Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaKey Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou 325035, ChinaNational and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou 325035, ChinaSchool of Environment and Energy, South China University of Technology, Guangzhou 510006, ChinaKey Laboratory of Tropical Marine Bio-Resources and Ecology, Key Laboratory of Science and Technology on Operational Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaMacroalgae provide food for microbial, meio- and macro-faunal communities in coastal ecosystems, thus mediating nutrient dynamics and functions in these ecosystems. Because of this vital role, it is important to clarify physiological information about macroalgae as it reflects their growth potential in the field. In this study, we examined the biomass, pigment content, and photosynthetic O<sub>2</sub> evolution rate versus irradiance curves of 18 macroalgal species from the intertidal zone of the Guangdong–Hong Kong–Macao Greater Bay Area, China, and investigated their photosynthetic patterns in relation to phyla characteristics, morphology, and growth locations. The results showed that green algae had the highest maximum photosynthetic O<sub>2</sub> evolution rate (P<sub>max</sub>), light utilization efficiency (α), and dark respiration (R<sub>d</sub>) among the three macroalgal phyla; the sheet-like macroalgal species had the highest P<sub>max</sub>, α, and Rd among the four morphological categories. The macroalgal species in the upper intertidal zone showed higher P<sub>max</sub> and α and lower saturation irradiance (E<sub>K</sub>) and compensation irradiance (E<sub>C</sub>) than those species in the lower intertidal location. The PCA results showed that the biomass of sheet-like macroalgal species was positively correlated with factor PC1 (50.34%), and that of finely branched species was negatively correlated with factor PC2 (25.17%). In addition, our results indicate that the light absorption and utilization capabilities of macroalgae could determine whether they could dominate the intertidal zone and that their photosynthetic characteristics could be used as a potential indicator of their biomass distribution in the Greater Bay Area.https://www.mdpi.com/2077-1312/11/7/1409macroalgaepigment contentphotosynthesis versus irradiance curvebiomass densityGuangdong–Hong Kong–Macao Greater Bay Area |
| spellingShingle | Quan He Linqing Liu Yujie Qin Qiang Lin Guangyan Ni Binbin Chen Zengling Ma Dinghui Zou Gang Li Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China Journal of Marine Science and Engineering macroalgae pigment content photosynthesis versus irradiance curve biomass density Guangdong–Hong Kong–Macao Greater Bay Area |
| title | Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China |
| title_full | Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China |
| title_fullStr | Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China |
| title_full_unstemmed | Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China |
| title_short | Taxonomic and Morpho-Functional Photosynthetic Patterns of 18 Intertidal Macroalgal Species in the Guangdong–Hong Kong–Macao Greater Bay Area, China |
| title_sort | taxonomic and morpho functional photosynthetic patterns of 18 intertidal macroalgal species in the guangdong hong kong macao greater bay area china |
| topic | macroalgae pigment content photosynthesis versus irradiance curve biomass density Guangdong–Hong Kong–Macao Greater Bay Area |
| url | https://www.mdpi.com/2077-1312/11/7/1409 |
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