Assessment of Water Quality of a River-Dominated Estuary with Hydrochemical Parameters: A Statistical Approach

Padma, P.; Sheela, Vattathara SivaramaMenon; Suryakumari, S; Jayalakshmy, K.V.; Nair, Swapna S.; Kumar, N. C.

doi:10.1007/s12403-014-0115-9

Water Qual Expo Health

2014

DOI: 10.1007/s12403-014-0115-9

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Assessment of Water Quality of a River-Dominated Estuary with Hydrochemical Parameters: A Statistical Approach

P. Padma¹,

Vattathara SivaramaMenon Sheela²,

S Suryakumari³

et al.

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2024

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Aquatic insects for monitoring the health status of riverine potholes: A case study in Chalakudy river basin, Kerala, India

Athulya,

Prasad,

Sivalingam

et al. 2024

Environ Monit Assess

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Potholes are microhabitats in riverine ecosystems, which contribute substantially to the unique regional faunal diversity and community composition. The potholes of riverine habitats of Kerala are less explored, thus this study is of signi cant importance for riverine health assessment using entomological indicators. A total of 18 potholes were identi ed from the two stations located in the Chalakudy river basin according to their vertical pro le. Insects were sampled monthly along with water quality parameters. We could identify 208 individuals represented by 15 families in the Athirappilly (S1). Among the collected taxa Ephemeroptera was the dominant order comprised of 48.56% of the population. Only 94 individuals represented by 10 families reported from the Ezhattumugham (S2). Hemiptera was the dominant order and comprised 51.06% of the total taxa collected. Benthic metrics such as family biotic index (FBI), % of Ephemeroptera Plecoptera, Trichoptera taxa (EPT), % of Ephemeroptera taxa, and % of tolerant organisms indicated remarkable variation in water quality status among the two stations and there was a signi cant difference in benthic metrics (p < 0.05). Major functional feeding groups reported, the percentage contribution of predators (p = 0.010), shredders (p = 0.009), and scrappers (p = 0.007) exhibited statistically signi cant variations between stations. Insects belonging to the families of Baetidae, Ephemeridae, Perlidae, and Stenopsychidae were found to be the most sensitive forms reported from the S1 indicates good water quality condition. Contrastingly, insects belonging to the families of Micronectidae, and Chironomidae being pollution-tolerant taxa, were abundant at S2 indicates a fairly poor condition of the potholes.

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Aquatic insects for monitoring the health status of riverine potholes: A case study in Chalakudy river basin, Kerala, India

Athulya,

Prasad,

Sivalingam

et al. 2024

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

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Assessment of Water Quality of a River-Dominated Estuary with Hydrochemical Parameters: A Statistical Approach

Cited by 1 publication

References 24 publications

Aquatic insects for monitoring the health status of riverine potholes: A case study in Chalakudy river basin, Kerala, India

Aquatic insects for monitoring the health status of riverine potholes: A case study in Chalakudy river basin, Kerala, India

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