Functional and taxonomic diversities are better early indicators of eutrophication than composition of freshwater phytoplankton

Machado, Karine Borges; Bini, Luis Maurício; Melo, Adriano S.; Andrade, Ariany Tavares de; Almeida, Marcela Fernandes de; Carvalho, Priscilla; Teresa, Fabrício Barreto; Roque, Fábio de Oliveira; Bortolini, Jascieli Carla; Padial, André Andrian; Vieira, Ludgero Cardoso Galli; Dala‐Corte, Renato Bolson; Siqueira, Tadeu; Juen, Leandro; Dias, Murilo S.; Júnior, Watson Arantes Gama; Martins, Renato Tavares; Nabout, João Carlos

doi:10.1007/s10750-022-04954-1

Cited by 8 publications

(3 citation statements)

References 96 publications

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“…9). In addition, the increase in large phytoplankton relative to small cells can be an indicator of eutrophication (Bell and Elmetri, 1995;Garmendia et al, 2011;Machado et al, 2023). Nano and microphytoplankton were indeed dominant in S4the most nutrient-rich station -, which could confirm the eutrophication status of this station.…”

Section: Spatial Change In Planktonic Food Web Characteristicsmentioning

confidence: 90%

Typology of planktonic food webs and associated emerging properties as indicators of the ecological status of a permanently disturbed Gulf of Gabès

Chkili,

Béat,

Kousri

et al. 2024

Journal of Marine Systems

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Section: Spatial Change In Planktonic Food Web Characteristicsmentioning

confidence: 90%

Typology of planktonic food webs and associated emerging properties as indicators of the ecological status of a permanently disturbed Gulf of Gabès

Chkili,

Béat,

Kousri

et al. 2024

Journal of Marine Systems

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“…The dominant species has a significant impact on the formation of the community structure and community environment, and its temporal changes are mainly used to manifest various community structures . The reliability of the phytoplankton niche model in algal bloom prediction has been verified by analyzing the niche width and niche overlap of the dominant phytoplankton species in lake and reservoir ecosystems (Shan et al, 2019;Wang et al, 2020;Cervantes-Urieta et al, 2021;Hofmann et al, 2021;Peng et al, 2021;Tao et al, 2021;Kléparski et al, 2022;Ma Y et al, 2022;Machado et al, 2022). In addition, the knowledge of the ecological requirements and relationships of dominant species regarding resource utilization is important for lake ecosystem management and restoration.…”

Section: Introductionmentioning

confidence: 99%

Niche and interspecific association with respect to the dominant phytoplankton species in different hydrological periods of Lake Wuchang, China

Meng

Chen

Liu

et al. 2022

Front. Environ. Sci.

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In aquatic ecosystems, the dynamics of ecological parameters play an important role in community organizations. To understand the seasonal variation in the phytoplankton community in Lake Wuchang, Anhui Province, water samples were collected in three different hydrological periods (dry season, normal season, and wet season) from December 2019 to August 2020. The dominance value (Y), niche width (Bi), niche overlap (Oij), variance ratio method (VR), chi-squared test (χ2), and association coefficients were used to analyze the niche and interspecific association with respect to the dominant phytoplankton species in different hydrological periods, while the redundancy analysis method (RDA) was used to distinguish the key driving environmental factors for the dominant phytoplankton species. The results showed that 308 species belonging to 8 phyla were identified, of which 13 species from 4 phyla were the dominant species. From the dry season to wet season, the dominant species changed from Bacillariophyta to Cyanophyta, while Synedra acus was the dominant species throughout the hydrological periods. The niche width of the dominant species varied from 1.77 to 6.65, and the niche width of Dinobryon was the lowest, while that of Synedra acus was the highest. The niche overlap showed temporal and spatial differences, of which 30 dominant species pairs were greater than 0.600, indicating that they occupied the environmental resources in a highly similar way. The interspecific association results showed that there was a significant positive correlation between the dominant species, especially in normal and wet seasons. Only 10 of the 48 dominant species pairs had significant associations based on the χ2 test, and two pairs had negative associations in the wet season, which might be related to the hydrological condition in the wet season. According to redundancy analysis, NO3−-N, NH4+-N, PO43--P, water depth (WD), and water temperature (WT) were the key environmental factors affecting the phytoplankton community variation in Lake Wuchang. This paper provides a new perspective for the study of the early warnings regarding the cyanobacteria bloom outbreak, and the management and protection of the water ecological environment in shallow lakes in the middle and lower reaches of the Yangtze River.

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“…One of the main effects of urbanization on the aquatic ecosystem is the eutrophication, which has become one of the main problems associated with the degradation of water quality and environmental integrity of urban lakes (Le et al, 2010;Nabout & Nogueira, 2011;Frau et al, 2018;Chen et al, 2020), because nutrient inputs to aquatic ecosystems, especially nitrogen and phosphorus, influence the proliferation of harmful cyanobacteria blooms (Paerl et al, 2020). In addition, recent studies have shown that the negative effects of adding nutrients to water include changes in physical environmental conditions, such as electrical conductivity and turbidity, and changes in community structure, such as species dominance and even the exclusion of rare species over time (Dittrich et al, 2023;Machado et al, 2023). Thus, eutrophication can lead to species loss and the dominance of a few opportunistic organisms that, due to their high biomass, increase turbidity and limit light in the water column (Soares et al, 2013;Paerl & Otten, 2013), directly affecting ecosystem functioning.…”

Section: Introductionmentioning

confidence: 99%

Phytoplankton community diversity, dominance, and rarity: a case study of tropical urban lakes

Martins,

Soares,

Carvalho

et al. 2024

Acta Limnol. Bras.

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Aim The aim of this study was to evaluate how phytoplankton community diversity, dominance, and rarity are influenced by different local environmental conditions in urban lakes. We expect that richness will be negatively influenced in lakes with higher nutrient concentrations and high turbidity, while abundance will be positively influenced. Thus, lakes with these conditions will have greater dominance of a few species and lower rarity, and the opposite in lakes with lower nutrient concentrations and less turbidity. Methods Phytoplankton and abiotic variables samples were collected in fourteen lakes distributed in the municipality of Goiânia, Goiás, Brazil, during a rainy period. Results It was possible to identify an environmental heterogeneity among the lakes. We identified a separation of the lakes according to phytoplankton richness and density, especially due to the contribution of green algae, desmids, and cyanobacteria. Most lakes showed high diversity and evenness values, with a predominance of rare taxa and few dominant species. The main variables associated with phytoplankton were water temperature, dissolved oxygen, turbidity, and nutrient concentrations. Conclusions Therefore, the study of species diversity, dominance, and rarity based on phytoplankton richness and abundance and their relationship with different local environmental conditions can be an important model for assessing water quality in urban lakes.

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Functional and taxonomic diversities are better early indicators of eutrophication than composition of freshwater phytoplankton

Cited by 8 publications

References 96 publications

Typology of planktonic food webs and associated emerging properties as indicators of the ecological status of a permanently disturbed Gulf of Gabès

Typology of planktonic food webs and associated emerging properties as indicators of the ecological status of a permanently disturbed Gulf of Gabès

Niche and interspecific association with respect to the dominant phytoplankton species in different hydrological periods of Lake Wuchang, China

Phytoplankton community diversity, dominance, and rarity: a case study of tropical urban lakes

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