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Distribution and population dynamics of cryptomonads in a Chinese lake with three basins varying in their trophic state
Xia, Shuang1,2; Cheng, Yingyin3; Zhu, Huan1; Liu, Guoxiang1; Hu, Zhengyu3; Liu, GX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
2015-04-01
Source PublicationPHYCOLOGICAL RESEARCH
ISSN1322-0829
Volume63Issue:2Pages:93-101
AbstractCryptomonads are unicellular algae that are important primary producers in various aquatic ecosystems. However, their ecological importance was often neglected owing to their brittleness. Their population in freshwater was thought to be regulated mainly by grazing pressure, and the effects of lake trophy were less important. In this study, the cryptomonad species in three basins of Lake Donghu, a shallow lake in China were identified, and their distribution, seasonal dynamics, and relationships with several environmental factors were investigated. Eight cryptomonads were identified at species level by morphological examination; species belonging to the genera Komma and Cryptomonas were most common. Cryptomonads displayed inconsistent distribution and population dynamics among the three basins of different trophic status. They were the dominant species in the eutrophic basin, while their proportion was lower in the hypertrophic basin and in the mesotrophic basin. The biomass of cryptomonads was highest in the hypertrophic region. As a whole, cryptomonads kept low biomass during winter, while rapid waxing and waning of their population was observed in the other seasons. Cryptomonads species exhibit distinct seasonal trends. Canonical correspondence analysis revealed water temperature and dissolved total nitrogen were the most important factors that affected the composition of the cryptomonads community. Spearman correlation analysis demonstrated that the biomass of cryptomonads was positively correlated with pH value, dissolved total nitrogen and dissolved organic carbon. In conclusion, lake trophy is a crucial factor affecting the total cryptomonads population.
SubtypeArticle
KeywordDissolved Organic Carbon Dissolved Total Nitrogen Environmental Factors Phytoplankton Seasonal Trend
Department[Xia, Shuang ; Zhu, Huan ; Liu, Guoxiang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China ; [Xia, Shuang] South Cent Univ Nationalities, Coll Life Sci, Wuhan 430074, Peoples R China ; [Cheng, Yingyin ; Hu, Zhengyu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
DOI10.1111/pre.12079
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS KeywordEUTROPHIC LAKE ; PHYTOPLANKTON SUCCESSION ; GROWTH-CHARACTERISTICS ; MOLECULAR PHYLOGENY ; RED-TIDE ; CRYPTOPHYCEAE ; DONGHU ; ALGAE ; LIGHT ; SIZE
WOS IDWOS:000353340200003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/25761
Collection藻类生物学及应用研究中心
Corresponding AuthorLiu, GX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.South Cent Univ Nationalities, Coll Life Sci, Wuhan 430074, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Xia, Shuang,Cheng, Yingyin,Zhu, Huan,et al. Distribution and population dynamics of cryptomonads in a Chinese lake with three basins varying in their trophic state[J]. PHYCOLOGICAL RESEARCH,2015,63(2):93-101.
APA Xia, Shuang,Cheng, Yingyin,Zhu, Huan,Liu, Guoxiang,Hu, Zhengyu,&Liu, GX .(2015).Distribution and population dynamics of cryptomonads in a Chinese lake with three basins varying in their trophic state.PHYCOLOGICAL RESEARCH,63(2),93-101.
MLA Xia, Shuang,et al."Distribution and population dynamics of cryptomonads in a Chinese lake with three basins varying in their trophic state".PHYCOLOGICAL RESEARCH 63.2(2015):93-101.
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