Heavy Metal Contamination in Sediments from Wetlands Invaded by Spartina alterniflora in the Yellow River Delta

Zhang, Zaiwang; Zhang, Tongrui; Yu, Wenhao; Xu, Jikun; Li, Jialiang; Wu, Tao; Liu, Suzhe; Wang, Haiyang; Wang, Yuxia; Shang, Shuai; Lin, Aoxiang

doi:10.3390/toxics10070374

Cited by 6 publications

(2 citation statements)

References 35 publications

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“…Protection of their habitat is one of the methods to conserve the water bird population (Karikar et al, 2021). Heavy metals are the major pollutant threats to the wetland environment (Zhang et al, 2022). Other threats being faced by the wetlands are habitat loss (Wang et al, 2022)…”

Section: Conservation Aspects In Different Agroecosystemmentioning

confidence: 99%

Evaluating the Seasonal Diversity, Habitat Preference and Assemblages of Water birds in Agroecosystem at Central Kerala

NARAYANAN,

2024

Preprint

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The study proposes to discuss about the seasonal water bird diversity, habitat preference, assemblages of water bird species and their conservation problems in different agroecosystems. Field visits was done once in a week during Jan. 2021-Jan. 2023. Freshwater and saline agroecosystems are the study areas used for the water bird survey. The water bird study was conducted by direct observation method, point count method and line transect method. Observations were made using binoculars (10 × 50 Nikon) and video camera (Nikon Coolpix p1000). Based on the pilot study in 2020, we decided to concentrate on 16 species of waterbirds coming in the 3 different orders i.e., Order Pelecaniformes, Ciconiiformes and Suliformes. Compared to the different study areas, a greater abundance of water birds was recorded in winter season, while a lesser abundance was observed in the monsoon season. The species richness was highest in saline agroecosystem and water bird congregation was more in freshwater agroecosystem. Saline agroecosystem was the most preferred habitat used for water bird species. Agroecosystems support the globally threatened water bird species such as spot billed pelican, darter, black headed ibis and painted stork. Many factors that are listed below threatens the agroecosystems and it causes the decreasing assemblages of water bird species. They are high water intake due to heavy rain, electric lines, high growth of water hyacinth, fishing nets, solid wastes and garbage deposited from toddy shops, pesticides used in fresh water rice farming, tourism, crackers, high level of fishing activities, habitat destruction, communication towers, predators and white flags were introduced by farmers.

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Section: Conservation Aspects In Different Agroecosystemmentioning

confidence: 99%

Evaluating the Seasonal Diversity, Habitat Preference and Assemblages of Water birds in Agroecosystem at Central Kerala

NARAYANAN,

2024

Preprint

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“…Studies have documented the accumulation of heavy metals by roadside plants and the ecological risks associated with this [5][6][7][8]9]. Phytoremediation has been widely used and is considered an environmentally-friendly and efficient method for mitigating nitrogen and phosphorus loads including heavy metals [10][11][12]. The quest to discover more plants with phytoremediation potentials is on the increase because of the huge pressure exerted by man on both terrestrial and aquatic resources.…”

Section: Introductionmentioning

confidence: 99%

Accumulation of Heavy Metals by Some Aquatic Macrophytes in Two Streams along the Tiko-Douala Highway, Cameroon

Fonge

Awo

Tabot

et al. 2023

IJPSS

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Aims: This study was aimed at determining the ecological health of two roadside streams across the Tiko-Douala highway, Cameroon, and investigating the phytoremediation potentials of dominant aquatic macrophytes within these streams. Study Design: Water, sediments, and aquatic plant samples were collected from Camp 7 and Moqouo streams, and analyzed for ammonium nitrogen, nitrate nitrogen, phosphates, magnesium, cadmium, and lead, including other relevant water quality parameters. Place and Duration of Study: In the Life Science Laboratory of the University of Buea, and Soil and Water Laboratory of the University of Dschang, Cameroon between June 2021 and June 2022. Methodology: Six water samples and six sediment samples were collected per stream, and two of the most dominant plant species (Pennisetum purpureum Schumach (Poaceae) and Dicanthelium clandestinum L. (Poaceae) from Camp 7, Commelina benghalensis L. (Commelinaceae) and Oldenlandia corymbosa L.(Rubiaceae) from Moqouo stream) were collected for heavy metal analysis. Heavy metal concentration and bioaccumulation factors were determined for each plant. Results: High concentrations of phosphates were recorded in Camp 7 (1.19 mg/L) and Moqouo (2.17 mg/L) streams. Dissolved oxygen levels were 0.69 mg/L and 0.80 mg/L in Camp 7 and Moqouo respectively. Sediment cadmium levels ranged from 0.33± 0.02 to 0.63± 0.16 mg/kg, and lead ranged from 0.34 ±0.03 to 0.37 ± 0.12 mg/kg in Moqouo and Camp 7 respectively. Conclusion: The Mouqouo and Camp 7 streams are rich in phosphates and thus not suitable for drinking and irrigation. Cadmium and lead in stream water were within the permissible limits but sediments contained higher concentrations than water and therefore they could be released gradually into the water column. All plants in the study except (Dicanthelium cladestinum) accumulated cadmium and lead, and could be potential plants for the phytoremediation of these metals.

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Transcriptomic traces of adaptive changes and detoxification in Glyptotendipes tokunagai (Chironomidae) exposed to cadmium-based sediments environment

Rangaswamy,

Kim,

Kong

et al. 2024

Environmental Advances

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Heavy Metal Contamination in Sediments from Wetlands Invaded by Spartina alterniflora in the Yellow River Delta

Cited by 6 publications

References 35 publications

Evaluating the Seasonal Diversity, Habitat Preference and Assemblages of Water birds in Agroecosystem at Central Kerala

Evaluating the Seasonal Diversity, Habitat Preference and Assemblages of Water birds in Agroecosystem at Central Kerala

Accumulation of Heavy Metals by Some Aquatic Macrophytes in Two Streams along the Tiko-Douala Highway, Cameroon

Transcriptomic traces of adaptive changes and detoxification in Glyptotendipes tokunagai (Chironomidae) exposed to cadmium-based sediments environment

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