Insights into the effects of environmental factors on phytoplankton and microzooplankton at a basin scale: diversity, assembly mechanisms, and co-occurrence networks DOI Creative Commons
Yanjun Shen,

Xinxin Zhou,

Jiaming Zhang

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Dec. 20, 2024

Mastering the characteristics of planktonic microbial communities under influence basin-scale environmental factors can provide scientific basis to develop more targeted protection and restoration measures. Here, an DNA metabarcoding technology was applied investigate phytoplankton microzooplankton simultaneously along whole basin Jialing River, one most important rivers in Southwest China with large scale altitude gradient water temperature discrepancy. Along river-way from upper lower reach, upward trend richness both observed significant positive negative correlations (Spearman correlation, p < 0.05), respectively. Significant variations their compositions river were also uncovered Chrysophyta Foraminifera potential keystones recognized by co-occurrence network analysis. Additionally, exponential distance-decay similarities detected for microzooplankton, which stronger phytoplankton. Based on results variation partitioning analysis null model, governed selection than those microzooplankton. Furthermore, showed a declining complexity stability reaches. These findings could serve establish investigation multiple artificial modifications.

Language: Английский

Spatiotemporal variations of nanophytoplankton mixotrophic strategies in the estuarine-coastal system of the northern South China Sea DOI
Y. Zhan,

Yuqiao Guan,

Jiayu Guo

et al.

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 213, P. 117622 - 117622

Published: Feb. 5, 2025

Language: Английский

Citations

0
Rivers Under Threat: Assessing the Ecological Impact of Macrolitter in the Leça River, Portugal DOI Creative Commons
José M. Marques, S. Nogueira, Sara Rodrigues

et al.

Limnetica, Journal Year: 2025, Volume and Issue: 45(1), P. 1 - 1

Published: March 3, 2025

Rivers provide vital ecosystem services for populations. However, these ecosystems face several anthropogenic threats, including macrolitter pollution, and their impacts remain inadequately understood. This study aimed to evaluate the ecological status of Leça river (northern Portugal) according elements defined by Water Framework Directive (WFD) quantify marginal as a new tool water quality assessment. Physical, chemical, biological (photosynthetic pigments; benthic macroinvertebrates) were quantified status, seven sites (P1 P7) along throughout four seasons (autumn/23, winter/24, spring/24, summer/24). Macrolitter was collected on riverbank each site categorized standard protocols. Based physical chemical elements, achieved Good in P1, Moderate P4 P7 (mainly due nutrient enrichment) with P2 P3 varying between Moderate. The macroinvertebrate community varied between: P1; Poor P3; P5; Bad P6 P7. From 1717 items (belonging 86 categories), artificial polymer/plastic most frequent (56.67 %). More abundance diversity P7, coinciding increasing anthropic presence. A multivariate analysis revealed that originating from recreational activities associated fewer alterations community, while deposition domestic, industrial, commercial residues more degraded conditions. results suggest evaluation can be used indicate threaten aquatic ecosystems.

Language: Английский

Citations

0
Correlation analysis between pH value of Yingna River with environmental factors and phytoplankton in China based on multivariable statistics analysis DOI

Yaqiang Chen,

Huixia Chen,

Jingyi Zhou

et al.

Algal Research, Journal Year: 2025, Volume and Issue: unknown, P. 103991 - 103991

Published: March 1, 2025

Language: Английский

Citations

0
Effects of Environmental Changes on Vegetation Growth and Macroinvertebrate Communities of Eelgrass Meadows in Northern China DOI Creative Commons
Xiaolei Jiang, Xiaoli Song,

Qingyun Yu

et al.

Global Ecology and Conservation, Journal Year: 2025, Volume and Issue: unknown, P. e03554 - e03554

Published: March 1, 2025

Language: Английский

Citations

0
Spatiotemporal Distribution of Phytoplankton Functional Groups in Baihua Reservoir: Implications for Ecosystem Management DOI Creative Commons

Zhongxiu Yuan,

Yan Chen,

Si Zhou

et al.

Biology, Journal Year: 2025, Volume and Issue: 14(4), P. 333 - 333

Published: March 25, 2025

Functional groups are an effective method for assessing water quality. From January 2020 to December 2023, the phytoplankton and environmental variables at five sites in Baihua Reservoir (BHR) were investigated once a month. The succession rate (SR) average variation degree (AVD) of functional determined, corresponding driving factors analyzed by using Random Forest model, hierarchical partitioning, Mantel test. A total 95 species belonging 7 taxonomic categories identified, which can be divided into 27 8 dominant (B, D, L0, P, S1, W1, W2, Y). B, Y occupied positions spatiotemporal succession, indicating that body was moderate eutrophication state. Water temperature, nitrogen, transparency key groups’ succession. Total phosphorus, permanganate index, dissolved oxygen significantly positively correlated with AVD (n = 230; p < 0.01). SR not only directly affected 0.05) but also indirectly affecting physicochemical factors. Understanding relationship between stability, is great significance algae management prevention bloom.

Language: Английский

Citations

0
Unraveling the complex dynamics of benthic algae in the Red River Basin: A comparative study DOI Creative Commons

Xuekai Feng,

HE Ke-jian,

Changming Chen

et al.

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103128 - 103128

Published: April 1, 2025

Language: Английский

Citations

0
Biodiversity and aquatic ecosystems conservation in global large river basins: a synthesis of the 5th Mississippi-Yangtze International Symposium DOI Creative Commons
Yushun Chen,

Michael A. Eggleton,

Michael J. Moore

et al.

Ecological Processes, Journal Year: 2024, Volume and Issue: 13(1)

Published: July 2, 2024

Language: Английский

Citations

0
Effect of Rice–Carp Coculture on Phytoplankton and Microzooplankton Community Composition in Paddy Water during Different Rice Growth Stages DOI Open Access
Geleta Tiko Welde, Bing Li, Yiran Hou

et al.

Water, Journal Year: 2024, Volume and Issue: 16(19), P. 2775 - 2775

Published: Sept. 29, 2024

Integrated rice–fish farming, an agricultural practice that combines cultivating rice and breeding fish in the same field, has attracted widespread attention. However, there is limited research on how rice–carp coculture impacts community structure of phytoplankton microzooplankton paddy water. This study employed eDNA metabarcoding sequencing to analyze composition a monoculture system (RM) (RF). Following annotation, we identified 9 phyla, 89 families, 275 genera, 249 species phytoplankton, along with 20 phyla (or subphyla classes), 85 222 179 microzooplankton. The alpha diversity indices revealed significantly higher richness, diversity, evenness RF group compared RM during grain-filling stage. Principal coordinates analysis (PCoA) demonstrated notable differences compositions between two groups across various growth stages. Composition showed increased relative abundance dominant such as Bacillariophyta, Chrysophyta, Euglenophyta while decreasing Cryptophyta. In microzooplankton, resulted Intramacronucleata (subphylum) decrease Conoidasida (class). conclusion, enhances plankton, particularly stage, simultaneously alters plankton These findings enhance understanding broader integrated farming ecosystems, emphasizing alterations aquatic microorganisms

Language: Английский

Citations

0
Effects of Aquatic Physicochemical Parameters Variation on the Phytoplankton Abundance and Diversity in the Babon River, (Semarang, Central Java, Indonesia) DOI Open Access
Haeruddin Haeruddin, Frida Purwanti, Arif Rahman

et al.

Current World Environment, Journal Year: 2024, Volume and Issue: 19(2), P. 796 - 809

Published: Sept. 20, 2024

The Babon River is an integral component of Semarang City's drainage system, which heavily impacted by the influx waste, leading to elevated water temperatures caused global warming and decreased pH levels due acid rain. two main environmental factors that affect phytoplankton growth productivity are temperature nutrient availability. Nutrients can change balance natural food webs aquatic ecosystems. Meanwhile, metals toxic accumulate in biota tissues. This study examined how nutrients, pH, temperature, heavy affected diversity abundance phytoplankton. Water samples were collected from 7 observation stations representing upstream, middle, downstream rivers. Observations at each station made 3 times months April-May, June-July, August-September. Temperature measured situ with HORIBA Checker. Analysis nitrate, phosphate, was carried out AAS. results showed dominant Rivers consisted Bacillariophyceae, Chlorophyceae, Cyanophyceae. There no against all independent variables (temperature, Cd, Total Cr, Pb concentrations) dependent (number genera, abundance, index phytoplankton) sampling station's location. However, time concentrations, location effect more than time, so did not contribute significantly variables.

Language: Английский

Citations

0
Seasonal instability of phytoplankton community in extreme arid lake basin during interval period of large-scale ecological water transport DOI
Jiaxin Wu, Xueyu Liu, Weijing Kong

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 958, P. 178119 - 178119

Published: Dec. 17, 2024

Language: Английский

Citations

0