Short-term effects of macrophyte removal on aquatic biodiversity in rivers and lakes

Misteli, Benjamin; Pannard, Alexandrine; Aasland, Eirin; Harpenslager, Sarah F.; Motitsoe, Samuel N.; Thiemer, Kirstine; Llopis, Stéphanie; Coetzee, Julie A.; Hilt, Sabine; Köhler, Jan; Schneider, Susanne C.; Piscart, Christophe; Thiébaut, Gabrielle

doi:10.1016/j.jenvman.2022.116442

Cited by 20 publications

(8 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The five study sites were selected based on reported major aquatic plant nuisance problems (Table 1; Misteli et al., 2023; Thiemer et al., 2023). We included rivers and lakes that contrast in plant growth form and have different predominant types of use and geographic setting.…”

Section: Methodsmentioning

confidence: 99%

“…We therefore chose the following three management regimes: ‘do nothing’, ‘current’ and ‘maximum feasible removal’. Current cover was obtained from the fieldwork done within the framework of the MadMacs project (Table 2, see also Harpenslager et al., 2022; Misteli et al., 2023; Thiemer et al., 2023). Vegetation cover for the ‘do‐nothing’ and ‘maximum feasible removal’ regime was deduced after discussions with local water managers, specifically for each case study site (Table 2).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Mass development of aquatic plants: Effects of contrasting management scenarios on a suite of ecosystem services

Vermaat,

Thiemer,

Immerzeel

et al. 2023

Journal of Applied Ecology

Self Cite

View full text Add to dashboard Cite

Dense beds of aquatic plants are often perceived as nuisance and therefore mechanically removed, often at substantial cost. Such removal, however, may affect a range of ecosystem functions and consequently also the ecosystem services that benefit society. We studied five cases: River Otra (Norway), River Spree (Germany), Lake Kemnade (Germany), Lake Grand‐Lieu (France) and Hartbeespoort Dam (South Africa). In all, nuisance aquatic plant growth is managed, but dominant species, geographic setting and major societal uses are different. We quantified 12 final ecosystem services as flows per area and year in biophysical and monetary terms. Quantified services were food and fodder production, commercial fisheries, hunting and gathering wild products, hydropower production, drinking and irrigation water production, flood prevention, carbon sequestration, active and passive recreation and biodiversity conservation (nonuse). These services were related to aquatic plant cover via a range of ecosystem functions, and the effects were estimated of three plant removal regimes on the relative importance of the quantified ecosystem services and on the total sum of the monetary estimates (total economic value, TEV). The three removal regimes were ‘maximum removal’, ‘current practice’ and ‘do nothing’. In all five cases, TEV was dominated by different forms of recreation. TEV was highest for Lake Kemnade, where visitor densities were highest. TEV was most sensitive to the different management regimes in Lake Kemnade, because a threshold in aesthetic appreciation was passed in the ‘do‐nothing’ regime, and in Hartbeespoort Dam, because of the effect on boating and angling. In the other cases, the different removal regimes had little effect on the estimated TEV. Synthesis and applications. Since recreation dominated the estimated societal benefits in the studied ecosystems, also where provision of hydropower, drinking water or irrigation water were relevant, effects on recreation should be a core consideration in the management of nuisance aquatic plants. Furthermore, aquatic plant management strategies will benefit from taking into account the differences in perceived nuisance among different categories of recreative users before engaging in costly removal.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Mass development of aquatic plants: Effects of contrasting management scenarios on a suite of ecosystem services

Vermaat,

Thiemer,

Immerzeel

et al. 2023

Journal of Applied Ecology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Caohai Lake is the largest shallow lake in Guizhou, since July 2020, the local waters of submerged macrophytes began to decline in large areas, the clear water state gradually to the turbid water state development ( Li et al, 2023 ). Submerged macrophytes are the major producers in lake ecosystems, providing habitats for aquatic life, maintaining biodiversity, and inhibiting algal growth ( Wood et al, 2017 ; Amorim and Moura, 2020 ; Wang et al, 2021 ; Misteli et al, 2023 ). However, the gradual loss of submerged macrophytes can have certain impact on shallow lake ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Loss of submerged macrophytes in shallow lakes alters bacterial and archaeal community structures, and reduces their co-occurrence networks connectivity and complexity

Liu,

Huang,

Jiang

et al. 2024

Front. Microbiol.

View full text Add to dashboard Cite

IntroductionBacteria and archaea are important components in shallow lake ecosystems and are crucial for biogeochemical cycling. While the submerged macrophyte loss is widespread in shallow lakes, the effect on the bacteria and archaea in the sediment and water is not yet widely understood.MethodsIn this study, 16S rRNA gene sequencing was used to explore the bacteria and archaea in samples taken from the sediment and water in the submerged macrophyte abundant (MA) and submerged macrophyte loss (ML) areas of Caohai Lake, Guizhou, China.ResultsThe results showed that the dominant bacterial phyla were Proteobacteria and Chloroflexi in the sediment; the dominant phyla were Proteobacteria, Actinobacteriota, and Bacteroidota in the water. The dominant archaea in sediment and water were the same, in the order of Crenarchaeota, Thermoplasmatota, and Halobacterota. Non-metric multidimensional scaling (NMDS) analyses showed that bacterial and archaeal community structures in the water were significantly affected by the loss of submerged macrophytes, but not by significant changes in the sediment. This suggests that the loss of submerged macrophytes has a stronger effect on the bacterial and archaeal community structures in water than in sediment. Furthermore, plant biomass (PB) was the key factor significantly influencing the bacterial community structure in water, while total nitrogen (TN) was the main factor significantly influencing the archaeal community structure in water. The loss of submerged macrophytes did not significantly affect the alpha diversity of the bacterial and archaeal communities in either the sediment or water. Based on network analyses, we found that the loss of submerged macrophytes reduced the connectivity and complexity of bacterial patterns in sediment and water. For archaea, network associations were stronger for MA network than for ML network in sediment, but network complexity for archaea in water was not significantly different between the two areas.DiscussionThis study assesses the impacts of submerged macrophyte loss on bacteria and archaea in lakes from microbial perspective, which can help to provide further theoretical basis for microbiological research and submerged macrophytes restoration in shallow lakes.

show abstract

“…This method offers the advantage of being less invasive and potentially more sustainable, minimizing impacts on the aquatic ecosystem, especially due to the short application time required (Akinnawo, 2023;Alahuhta et al, 2018;Bermarija et al, 2022;Karouach et al, 2022;L. Li et al, 2023;Misteli et al, 2023;Moura Júnior et al, 2018;Sobral & Santos, 2023;Souza et al, 2020;Wang et al, 2023;WU & WU, 2007;Zhao et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic control of aquatic macrophytes in reservoirs: An integrated review

Sobral,

Menezes,

Araújo

et al. 2024

RSD

View full text Add to dashboard Cite

The excessive proliferation of cyanobacteria and aquatic macrophytes in water reservoirs has been a concern for governments, energy companies managing hydroelectric and thermal power plants, and local populations. These aquatic organisms, when overabundant, negatively impact the management of water for public supply and energy generation, obstructing intake systems and damaging water treatment stations. Ultrasound emerges as a potential technique for controlling these organisms. The aim of this study was to perform an integrative review by selecting articles published between 2020 and 2024, focusing on the efficacy and ecological implications of ultrasonic control on these aquatic populations. The methodology involved searching scientific databases, selecting 14 articles out of a total of 42, based on their relevance to the theme of ultrasonic control and its practical applicability. The results indicate that ultrasonic frequencies of 20 kHz collapsed gas vacuoles in these aquatic organisms within 40 seconds of exposure, demonstrating the potential application of this technique in controlling these organisms, although it is necessary to adjust the intensity according to the specific environmental conditions of the reservoir and the biology of the target organisms. However, exposure to ultrasound can release toxins, affect non-target organisms, and alter the aquatic community structure, resulting in negative impacts such as hypoxia and fish death. It highlights the need to adopt an adaptive model to adjust ultrasound parameters and integrate them with other management practices. The study emphasizes the importance of conducting laboratory-scale tests and continuous monitoring to optimize efficacy and minimize environmental risks. Future development of more efficient and less invasive ultrasonic transducers is also recommended, as well as interdisciplinary collaboration to promote more sustainable reservoir management.

show abstract

Short-term effects of macrophyte removal on aquatic biodiversity in rivers and lakes

Cited by 20 publications

References 65 publications

Mass development of aquatic plants: Effects of contrasting management scenarios on a suite of ecosystem services

Mass development of aquatic plants: Effects of contrasting management scenarios on a suite of ecosystem services

Loss of submerged macrophytes in shallow lakes alters bacterial and archaeal community structures, and reduces their co-occurrence networks connectivity and complexity

Ultrasonic control of aquatic macrophytes in reservoirs: An integrated review

Contact Info

Product

Resources

About