SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM

Seasonal changes in freshwater phytoplankton assemblages at Tuyen Lam Reservoir in the Central Highlands of Vietnam were classified into 23 functional groups based on physiological, morphological, and ecological characteristics. A total of 168 species were recorded during 10 surveys from 2015 to 201...

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Những tác giả chính:	Tran, Thi Hoang Yen, Le, Thi Trang, Phan, Doan Dang, Tran, Thanh Thai, Nguyen, Van Tu, Nguyen, Ngoc Lam, Pham, Thanh Luu
Định dạng:	Bài viết
Ngôn ngữ:	English
Được phát hành:	Trường Đại học Đà Lạt 2023
Truy cập trực tuyến:	https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1023 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/114476
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spelling	oai:scholar.dlu.edu.vn:DLU123456789-1144762023-10-27T14:47:24Z SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM Tran, Thi Hoang Yen Le, Thi Trang Phan, Doan Dang Tran, Thanh Thai Nguyen, Van Tu Nguyen, Ngoc Lam Pham, Thanh Luu Seasonal changes in freshwater phytoplankton assemblages at Tuyen Lam Reservoir in the Central Highlands of Vietnam were classified into 23 functional groups based on physiological, morphological, and ecological characteristics. A total of 168 species were recorded during 10 surveys from 2015 to 2019 at 7 sampling sites, with Chlorophyta dominating in number of species. Phytoplankton abundance varied from 0.18×105 to 21.2×105 cells/L during the study period, mainly due to cyanobacteria. Seven of the 23 functional groups were considered to be dominant (relative density > 5%). The dominant functional groups were groups M and G in the dry season and groups M, G, P, and E in the rainy season. Group M (Microcystis aeruginosa) was the most common in both seasons, while group P (Closterium, Staurastrum, Aulacoseira), group E (Dinobryon, Synura), and group G (Sphaerocystis, Eudorina) were more common in the rainy season. The Shannon diversity index (H¢) showed that phytoplankton communities were relatively diverse and that most of the study sites were lightly polluted. However, the ecological status has deteriorated at some locations due to the overgrowth of group M, leading to eutrophication in this reservoir. This study highlights the usefulness of functional groups in the study of seasonal changes in phytoplankton dynamics. Functional groups are applied for the first time at Tuyen Lam Reservoir and can be used to predict early-stage cyanobacterial blooms in future studies. 2023-03-04T14:14:17Z 2023-03-04T14:14:17Z 2023 Article 0866-787X https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1023 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/114476 10.37569/DalatUniversity.13.2.1023(2023) en Tạp chí Khoa học Đại học Đà Lạt, Tập 13, Số 2; tr. 25-35 application/pdf Trường Đại học Đà Lạt
institution	Thư viện Trường Đại học Đà Lạt
collection	Thư viện số
language	English
description	Seasonal changes in freshwater phytoplankton assemblages at Tuyen Lam Reservoir in the Central Highlands of Vietnam were classified into 23 functional groups based on physiological, morphological, and ecological characteristics. A total of 168 species were recorded during 10 surveys from 2015 to 2019 at 7 sampling sites, with Chlorophyta dominating in number of species. Phytoplankton abundance varied from 0.18×105 to 21.2×105 cells/L during the study period, mainly due to cyanobacteria. Seven of the 23 functional groups were considered to be dominant (relative density > 5%). The dominant functional groups were groups M and G in the dry season and groups M, G, P, and E in the rainy season. Group M (Microcystis aeruginosa) was the most common in both seasons, while group P (Closterium, Staurastrum, Aulacoseira), group E (Dinobryon, Synura), and group G (Sphaerocystis, Eudorina) were more common in the rainy season. The Shannon diversity index (H¢) showed that phytoplankton communities were relatively diverse and that most of the study sites were lightly polluted. However, the ecological status has deteriorated at some locations due to the overgrowth of group M, leading to eutrophication in this reservoir. This study highlights the usefulness of functional groups in the study of seasonal changes in phytoplankton dynamics. Functional groups are applied for the first time at Tuyen Lam Reservoir and can be used to predict early-stage cyanobacterial blooms in future studies.
format	Article
author	Tran, Thi Hoang Yen Le, Thi Trang Phan, Doan Dang Tran, Thanh Thai Nguyen, Van Tu Nguyen, Ngoc Lam Pham, Thanh Luu
spellingShingle	Tran, Thi Hoang Yen Le, Thi Trang Phan, Doan Dang Tran, Thanh Thai Nguyen, Van Tu Nguyen, Ngoc Lam Pham, Thanh Luu SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
author_facet	Tran, Thi Hoang Yen Le, Thi Trang Phan, Doan Dang Tran, Thanh Thai Nguyen, Van Tu Nguyen, Ngoc Lam Pham, Thanh Luu
author_sort	Tran, Thi Hoang Yen
title	SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
title_short	SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
title_full	SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
title_fullStr	SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
title_full_unstemmed	SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM
title_sort	seasonal variation of phytoplankton functional groups in tuyen lam reservoir, central highlands, vietnam
publisher	Trường Đại học Đà Lạt
publishDate	2023
url	https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1023 https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/114476
_version_	1781718789874778112

SEASONAL VARIATION OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TUYEN LAM RESERVOIR, CENTRAL HIGHLANDS, VIETNAM

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