Biological indicators of ecological quality in typical urban river-lake ecosystems: The planktonic rotifer community and its response to environmental factors

Liang, Diwen; Wang, Qing; Wei, Nan; Tang, Changkuan; Sun, Xian; Yang, Yalin

doi:10.1016/j.ecolind.2020.106127

Cited by 41 publications

(17 citation statements)

References 36 publications

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“…Generally, abundance and biomass of rotifers are positively associated with trophic level (Chalkia and Kehayias 2013). Trichocerca and Polyarthra are commonly considered as eutrophic genera (Liang et al 2020), and they belonged to the virgate trophi and Asplanchna corona groups in this study. Their abundance was highly associated with trophic level (NO 2 − -N and TP).…”

Section: Effects Of Environmental Factors On Abundance and Biomass Of Rotifer Functional Groupsmentioning

confidence: 72%

“…The chlorophyll-a (Chl-a) content was determined spectrophotometrically and calculated according to the method described by Lorenzen (1967). The comprehensive trophic state index (TSIC) was calculated to assess the trophic state of lakes following previous publications (Liang et al 2020;Wang et al 2019). In addition to the above abiotic factors, nauplius, cladocera, copepod, and Asplanchna abundances were included as biotic factors.…”

Section: Environmental Parametersmentioning

confidence: 99%

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Seasonal variations of rotifer communities in three climatic zones: effects of environmental parameters on changes of functional groups

Qian

Wen

2021

Limnology

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In this study, the annual changes of rotifer communities were observed in six lakes belonging to tropical, subtropical, and warm temperate zones. Rotifers were classified into different functional groups based on the morphology of the corona and trophi. The abundance and biomass of each functional group were compared between climatic zones, and the driving environmental factors were analyzed. Analysis of similarities (ANOSIM), and similarity percentage analysis (SIMPER) indicated distinct separation in rotifer community structure between the three climatic zones. The subtropical zone showed more functional groups, higher abundance and biomass of dominant functional groups than tropical and warm temperate zones. Asplanchna abundance and water transparency were considered as the major factors affecting rotifer functional groups in all the three climatic zones. Chlorophyll a content (Chl-a) was more important in subtropical and warm temperate zones than in tropical zone. Water temperature mainly affected rotifer functional groups in warm temperate and tropical zones, but showed less effects in subtropical zone. In addition, NO 2 − -N content was an important factor in warm temperate zone, but not in subtropical and tropical zones. Overall, classification of functional groups could be a useful method to investigate the changes of rotifer community structure in different climatic zones.

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Section: Effects Of Environmental Factors On Abundance and Biomass Of Rotifer Functional Groupsmentioning

confidence: 72%

Section: Environmental Parametersmentioning

confidence: 99%

Seasonal variations of rotifer communities in three climatic zones: effects of environmental parameters on changes of functional groups

Qian

Wen

2021

Limnology

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“…Also, phytoplankton biomass has marked effects on rotifer communities and it has strong seasonalities in most water bodies (Liang et al, 2019). A strongly positive correlation has been found between Polyarthra abundance and chlorophyll-a (Liang et al, 2020).…”

Section: Introductionmentioning

confidence: 83%

“…Studying the genetic differentiation of rotifers is of great signi cance for understanding the dispersal pattern of gene ow and adaptive evolution mechanisms in microscopic organisms (Zhang et al, 2018b). Polyarthra dolichoptera and P. vulgaris, cosmopolitan species of rotifera, are more tolerant to seasonal changes than other rotifers and exist in almost all kinds of water bodies (Liang et al, 2020). It has been suggested that Polyarthra cryptic species distribution might re ect genotypic adaptations to temperature differences and food resources (Obertegger et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Genetic Differentiation and Phylogeography of Rotifer Polyarthra Dolichoptera and P. Vulgaris Complexes Between Southern China and Eastern North America: High Intercontinental Differences

Liang¹,

McManus²,

Wang³

et al. 2021

Preprint

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Genetic differentiations and phylogeographical patterns of small organisms may be shaped by spatial isolation, environmental gradients and gene flow. However, knowledge about genetic differentiation of rotifers on intercontinental gradient is still limited. Polyarthra dolichoptera and P. vulgaris are cosmopolitan rotifers and tolerant to environmental changes, offering an excellent model to address the research gap. Here, we investigated the populations in Southern China and eastern North America, and evaluated the phylogeographical patterns from their geographical range sizes, geographic-genetic distance relationships and their response to spatial-environmental factors. Using mitichondrial cytochrome c oxidase subunit I gene as the DNA marker, we analyzed a total of 170 individuals. At least 24 putative cryptic species, including 20 of P. dolichoptera and 4 of P. vulgaris were detected based on three delimitation methods. Our results showed that some cryptic species were widely distributed but most of them were limited to single areas. The divergence of P. dolichoptera and P. vulgaris complexes indicated that gene flow between continents was limited while that within each continent was stronger. Furthermore, on the intercontinental scale spatial distance had a stronger influence than physicochemical variables on the genetic differentiations of P. dolichoptera and P. vulgaris complexes. However, the relationship between genetic distance and geographic distance was not continuously linear and the P. dolichoptera data best fitted the power-law model. This might be due to the effects of habitat heterogeneity, long-distance colonization and oceanographic barriers. Outliers above the correlation line between geographic distance and genetic distance suggest a significant dispersal barrier on large geographic scales studies.

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“…Until recently, research on rotifers has focused almost entirely on their role in the environment in areas of zooplankton research [63,64]. However, recently increased attention has been paid to the functional role of rotifers with particular reference to the functional feeding groups [41,65]. It is known that macrophytes create extremely complicated habitats that determine the formation of many ecological niches, as well as the possibility for the coexistence of various organisms [16,66,67].…”

Section: Discussionmentioning

confidence: 99%

Diversity of Rotifers in Small Rivers Affected by Human Activity

et al. 2022

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The rivers flowing through Upper Silesia and the adjacent areas (Southern Poland) are affected by various anthropogenic pressures including urbanisation, agriculture and animal husbandry, as well as industry (e.g., mining), which are reflected in the measured physical and chemical water parameters. The species composition of rotifers relative to a variety of microhabitats was studied in eight small rivers of this region in 2017. Our research is a comprehensive and up-to-date analysis that focuses on the rotifers in small rivers and shows the diversity of rotifers relative to the microhabitats and environmental variables. The diversity of rotifers ranged from 0 to 23 taxa in individual samples. In the studied rivers, 129 taxa of rotifers were found. Notommata groenlandica, a species that has not been recorded in the country for 100 years, was found in two rivers. The Kruskal–Wallis one-way ANOVA and Dunn’s multiple comparison post hoc tests revealed statistically significant differences in the median number of rotifer taxa between the abiotic types of rivers, rivers, sampling sites, microhabitats and seasons. A multiple regression analysis revealed a significant relationship (correlation) between the number of rotifer taxa, and the concentration of nitrites, total dissolved solids and dissolved oxygen in the water.

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Biological indicators of ecological quality in typical urban river-lake ecosystems: The planktonic rotifer community and its response to environmental factors

Cited by 41 publications

References 36 publications

Seasonal variations of rotifer communities in three climatic zones: effects of environmental parameters on changes of functional groups

Seasonal variations of rotifer communities in three climatic zones: effects of environmental parameters on changes of functional groups

Genetic Differentiation and Phylogeography of Rotifer Polyarthra Dolichoptera and P. Vulgaris Complexes Between Southern China and Eastern North America: High Intercontinental Differences

Diversity of Rotifers in Small Rivers Affected by Human Activity

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