Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake
Phytoplankton taxonomic α-diversity indices are useful tools to characterize the trophic states in freshwater ecosystems. However, the application of these indices to assess trophic states in large barrier lakes is rare, especially in China. To test the usefulness of phytoplankton taxonomic α-divers...
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MDPI AG
2022-11-01
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| author | Yang Cai Lin Qi Tao Shan Yan Liu Nannan Zhang Xinxin Lu Yawen Fan |
| author_facet | Yang Cai Lin Qi Tao Shan Yan Liu Nannan Zhang Xinxin Lu Yawen Fan |
| author_sort | Yang Cai |
| collection | DOAJ |
| description | Phytoplankton taxonomic α-diversity indices are useful tools to characterize the trophic states in freshwater ecosystems. However, the application of these indices to assess trophic states in large barrier lakes is rare, especially in China. To test the usefulness of phytoplankton taxonomic α-diversity indices in trophic state assessments, we investigated the taxonomic α-diversity-Comprehensive Trophic Level Index (TLI) relationships in the second largest alpine lava barrier lake (Jingpo Lake, China) in the rainy and dry season from 2017 to 2018. Based on a two-year dataset, we found that there was a significant difference in the phytoplankton community, α-diversity indices, and TLI dynamic between the rainy season and the dry season. First, there was significant variation in phytoplankton abundance, the Margalef index, and the Shannon-Wiener index in different hydrological periods (<i>p</i> < 0.05). Second, the mean TLI in the rainy season (44 ± 5) was higher than in the dry season (41 ± 5) (<i>p</i> < 0.05). Lastly, the response characteristics of the Margalef and Shannon-Wiener index with TLI were different in different hydrological periods, and the relationship between the Pielou evenness index and TLI was weak. This study highlights that phytoplankton taxonomic α-diversity indices are relevant tools in water quality assessments but selecting the fit index is necessary. The current study provides key information about phytoplankton community, α-diversity, and trophic states in the largest alpine lava barrier lake, and the results of the study will benefit water quality management and biodiversity conservation in barrier lakes. |
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| format | Article |
| id | doaj.art-380b37ad46684fb18191fb3d87762fa5 |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-09T18:23:15Z |
| publishDate | 2022-11-01 |
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| series | Diversity |
| spelling | doaj.art-380b37ad46684fb18191fb3d87762fa52023-11-24T08:06:35ZengMDPI AGDiversity1424-28182022-11-011411100310.3390/d14111003Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo LakeYang Cai0Lin Qi1Tao Shan2Yan Liu3Nannan Zhang4Xinxin Lu5Yawen Fan6College of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaCollege of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaCollege of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaCollege of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaModern Educational Technology and Experiment Center, Harbin Normal University, Harbin 150025, ChinaCollege of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaCollege of Life Science and Technology, Harbin Normal University, Harbin 150025, ChinaPhytoplankton taxonomic α-diversity indices are useful tools to characterize the trophic states in freshwater ecosystems. However, the application of these indices to assess trophic states in large barrier lakes is rare, especially in China. To test the usefulness of phytoplankton taxonomic α-diversity indices in trophic state assessments, we investigated the taxonomic α-diversity-Comprehensive Trophic Level Index (TLI) relationships in the second largest alpine lava barrier lake (Jingpo Lake, China) in the rainy and dry season from 2017 to 2018. Based on a two-year dataset, we found that there was a significant difference in the phytoplankton community, α-diversity indices, and TLI dynamic between the rainy season and the dry season. First, there was significant variation in phytoplankton abundance, the Margalef index, and the Shannon-Wiener index in different hydrological periods (<i>p</i> < 0.05). Second, the mean TLI in the rainy season (44 ± 5) was higher than in the dry season (41 ± 5) (<i>p</i> < 0.05). Lastly, the response characteristics of the Margalef and Shannon-Wiener index with TLI were different in different hydrological periods, and the relationship between the Pielou evenness index and TLI was weak. This study highlights that phytoplankton taxonomic α-diversity indices are relevant tools in water quality assessments but selecting the fit index is necessary. The current study provides key information about phytoplankton community, α-diversity, and trophic states in the largest alpine lava barrier lake, and the results of the study will benefit water quality management and biodiversity conservation in barrier lakes.https://www.mdpi.com/1424-2818/14/11/1003phytoplanktonalpha diversity indicesbarrier lakeTLI |
| spellingShingle | Yang Cai Lin Qi Tao Shan Yan Liu Nannan Zhang Xinxin Lu Yawen Fan Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake Diversity phytoplankton alpha diversity indices barrier lake TLI |
| title | Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake |
| title_full | Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake |
| title_fullStr | Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake |
| title_full_unstemmed | Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake |
| title_short | Application of Phytoplankton Taxonomic α-Diversity Indices to Assess Trophic States in Barrier Lake: A Case of Jingpo Lake |
| title_sort | application of phytoplankton taxonomic α diversity indices to assess trophic states in barrier lake a case of jingpo lake |
| topic | phytoplankton alpha diversity indices barrier lake TLI |
| url | https://www.mdpi.com/1424-2818/14/11/1003 |
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