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Water
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An Ecological Status Assessment: Phytoplankton Communities in Water Bodies
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An Ecological Status Assessment: Phytoplankton Communities in Water Bodies

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: closed (25 September 2019) | Viewed by 7790

Special Issue Editor

Dr. Gábor Várbíró

E-Mail Website
Guest Editor
GINOP Sustainable Ecosystems Group, DRI Department of Tisza Research, MTA Centre for Ecological Research, Hungary
Interests: hydrobiology, biological databases, biological monitoring and assessment, neural networks

Special Issue Information

Dear Colleagues,

The aim of this Special Issue is to highlight the importance of phytoplankton communities in ecological assessment. Phytoplankton studies in assessment not only focus on single species but provide knowledge of several categorized functional traits (e.g., morphological, physiological, behavioural, and life-history). The distribution of these traits to their presence and ecological response along environmental gradients is the basis of functional ecological assessment. This trait's approach is widely used in river, lakes, and marine phytoplankton assessment.

Besides traditional taxonomy, DNA and eDNA methods are also very promising tools to unravel the structure and distribution of phytoplankton species and traits. Although these new molecular methods still need to be developed in order to be used in phytoplankton assessment, the use of these novel approaches are also welcomed in this Special Issue.

Dr. Gábor Várbíró
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • phytoplakton
  • functional groups
  • environmental filtering
  • ecological assessment
  • eDNA

Published Papers (2 papers)

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Research

17 pages, 2030 KiB  
Article
Driving Factors and Dynamics of Phytoplankton Community and Functional Groups in an Estuary Reservoir in the Yangtze River, China
by Changtao Yang, Jing Nan and Jianhua Li
Water 2019, 11(6), 1184; https://doi.org/10.3390/w11061184 - 6 Jun 2019
Cited by 24 | Viewed by 4053
Abstract
Qingcaosha Reservoir, an estuary reservoir on the Yangtze River and a drinking water source, is facing phytoplankton blooms and the factors driving changes in phytoplankton composition and distribution have not been well understood so far. To facilitate the understanding of this problem, we [...] Read more.
Qingcaosha Reservoir, an estuary reservoir on the Yangtze River and a drinking water source, is facing phytoplankton blooms and the factors driving changes in phytoplankton composition and distribution have not been well understood so far. To facilitate the understanding of this problem, we collected surface water samples from January to December 2014 monthly at 12 sampling sites. A total of 205 taxa classified into eight major taxonomic groups were identified. Cyclotella meneghiniana, Melosira varians, Melosira granulata, Cryptomonas ovata and Chlorella vulgaris were the species dominating at least one season. The long stratification period and high nutrient concentration resulted in high chlorophyll a concentration (36.1 ± 18.5 μg L−1) in the midstream and downstream during summer, and mass phytoplankton growth and sedimentation process led to nutrients decrease. In the reservoir, neither P or N limitation was observed in the study period. We observed that water temperature, nutrient concentrations and light availability (Zeu/Zmix) are critical in selecting functional groups. These results highlight that the functional groups characterized the water body well and showed a good ecological status based on the assemblage index (Q average = 4.0). This work also highlights that mixing regime, water temperature and light availability were the driving factors that determine phytoplankton dynamics. Full article
(This article belongs to the Special Issue An Ecological Status Assessment: Phytoplankton Communities in Water Bodies)
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17 pages, 3835 KiB  
Article
Assessment of Aquatic Ecosystem Health of the Wutong River Based on Benthic Diatoms
by Hao Xue, Binghui Zheng, Fansheng Meng, Yeyao Wang, Lingsong Zhang and Peixuan Cheng
Water 2019, 11(4), 727; https://doi.org/10.3390/w11040727 - 8 Apr 2019
Cited by 26 | Viewed by 3366
Abstract
The community structure of benthic diatoms and water environmental characteristics were extensively investigated to assess the aquatic ecosystem health of the Wutong River (Heilongjiang Province, China). Several diatom indices were calculated, and a benthic diatom index based on biotic integrity (BD-IBI) was developed. [...] Read more.
The community structure of benthic diatoms and water environmental characteristics were extensively investigated to assess the aquatic ecosystem health of the Wutong River (Heilongjiang Province, China). Several diatom indices were calculated, and a benthic diatom index based on biotic integrity (BD-IBI) was developed. Principal component analysis (PCA), Spearman correlation analysis (CA), cluster analysis, redundancy analysis (RDA), and the box plot analysis were used to analyze the benthic diatom communities, assess the river ecosystem health, and compare the applicability of different indexes. The results indicated that Gomphonema parvulum and other tolerant species were the dominant species. Meanwhile, most sites were in “poor” or “very poor” condition according to the diatom indexes evaluation, indicating that the river has been disturbed by human activities. The sampling sites of the Wutong River were divided into three groups based on different pollution levels. The derived BD-IBI included four individual metrics of different aspects, showed strong distinguishability for three grouping and robust correlation with environmental variables. Of all the indexes selected, IBI performed the best, followed by the species-level diatom indexes and the genus-level diatom indexes. Full article
(This article belongs to the Special Issue An Ecological Status Assessment: Phytoplankton Communities in Water Bodies)
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