scholarly journals Insights into bioassessment of water quality status using functional units of protozoan periphytons in marine ecosystems

2021 ◽  
Author(s):  
Syed Shabi Ul Hassan Kazmi ◽  
Uroosa Uroosa ◽  
Henglong Xu
Keyword(s):  
Water Quality ◽  
Anthropogenic Impacts ◽  
Oxygen Demand ◽  
Marine Ecosystems ◽  
Baseline Survey ◽  
Biological Traits ◽  
Ecological Features ◽  
Water Quality Status ◽  
Functional Units ◽  
Quality Status

Abstract Protozoan periphytons with their ecological features are considered as a robust bioindicator for bioassessment of both environmental stress and anthropogenic impacts in aquatic ecosystems. Keeping in view the ability of protozoan fauna for discriminating water quality status, a 1-year baseline survey was conducted using glass slides as an artificial substratum in coastal waters of Yellow sea, northern China. Four sampling sites (A–D) were selected from a clean area to a polluted station, and samples were collected monthly at a depth of 1 m. Environmental variables such as salinity, chemical oxygen demand (COD), dissolved oxygen (DO), soluble reactive phosphates (SRP), ammonium nitrogen (NH4-N) and nitrate nitrogen (NO3-N) were measured synchronically to compare with biotic factors. From a total of 144 identified protozoan species, 53 functional units (FUs) were proposed based on four biological traits: feeding type, resource of food supply, body size and movement type. These FUs represented a clear variability in spatial distribution among four study sites. The relative abundances of the sessile colonial bacterivores (e.g., BOS5s) showed an increasing trend from sites A to D. Multivariate analysis revealed that the patterns of the protozoan FUs showed a significant variation among four sampling sites, and were driven by the increasing levels of nutrients (e.g., NH4-N) and decreasing ranks of DO (P < 0.05). The bacterivorous FUs (e.g., BOS5s and BIS3v) were significantly positively related to NH4-N, while the vagile algivorous FUs (e.g., AIS8v, AOS3v, AOS6v) and sessile predators (e.g., RIS4s) were significantly positively correlated with transparency. These findings suggested that FUs of protozoan periphytons may be used as a useful bioindicators of water quality status in marine ecosystems.

scholarly journals Insights into Bioindicator Redundancy for Monitoring Water Quality based on Functional Units of Periphytic Protozoan Communities in Marine Ecosystems

2021 ◽  
Author(s):  
Syed Shabi Ul Hassan Kazmi ◽  
Uroosa Uroosa ◽  
Alan Warren ◽  
Guangjian Xu ◽  
Henglong Xu
Keyword(s):  
Water Quality ◽  
Relative Abundance ◽  
Species Abundance ◽  
Oxygen Demand ◽  
Functional Redundancy ◽  
Baseline Survey ◽  
High Signal ◽  
Biological Traits ◽  
Signal To Noise ◽  
Functional Units

Abstract Although periphytic protozoan communities have long been used for the bioassessment of water quality, their utility is hampered by functional redundancy leading to high “signal to noise” ratios. In this study, a 1-year baseline survey of periphytic protozoan communities was carried out in coastal waters of Yellow sea, northern China, in order to determine redundancy levels in conditions of differing water quality. Samples were collected at four sampling sites along a pollution gradient. Environmental variables such as salinity, chemical oxygen demand (COD), and concentrations of dissolved oxygen (DO), soluble reactive phosphates (SRP), ammonium nitrogen (NH4-N) and nitrate nitrogen (NO3-N) were measured to compare with biotic factors. A total of 53 functional units (FUs) were identified from 144 observed protozoan species based on four biological traits, i.e., feeding type, body size, movement type and source of food supply. For reducing the “signal to noise” ratios of species-abundance/biomass data, the peeling procedure was used to identify the bioindicator redundancy levels based on these FUs. Three consecutive subsets of response units (RU1–RU3) with correlation coefficients >0.75 of the full FU dataset were identified, comprising 12, 21 and 9 FUs, respectively. Algivores and bacterivores were dominant in RU1 and RU2 among the polluted sites, whereas raptors were dominant in RU3 at the unpolluted site. In terms of relative abundance, RU1 was the primary contributor to the protozoan communities during the 1-year cycle and its relative abundance increased with increasing pollution, whereas RU2 and RU3, with complementary temporal distributions, generally decreased with increasing pollution. Ordinations based on boot-strapped average analyses revealed a significant variation in functional pattern of all three RUs among the four sampling sites. Biological-environmental match analysis demonstrated that the variability was driven by the increasing concentrations of nutrients (e.g., NH4-N, NO3-N and PO4-P) and decreasing concentrations of DO (P<0.05). Based on these findings, it is suggested that there were high levels of functional redundancy among periphytic protozoan communities used as bioindicators of marine water quality.

scholarly journals Evaluation of Water Quality of the Titas River Using NSF Water Quality Index

2010 ◽  
Vol 3 (1) ◽  
pp. 151 ◽  
Author(s):  
S. Islam ◽  
T. Rasul ◽  
J. Bin Alam ◽  
M. A. Haque
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Laboratory Tests ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Huge Amount ◽  
Water Quality Status ◽  
Quality Status

The Titas River, a trans-boundary river of Bangladesh flows almost the entire Brahmanbaria district, consumes a huge amount of sewage, agricultural discharges and runoff, waste produced from human excreta, discharges of two oil mills and contaminants from other minor sources. A study is conducted to find the water quality status of the river during the period from July 2008 to June 2009 and by using National Sanitation Foundation (NSF) water quality index, the probable use of this water is predicted. This work consists of laboratory tests for the evaluation of some water quality parameters of the Titas and to identify its probable use in various purposes. The results of the laboratory tests and NSF water quality index suggest that the water can be used for recreation, pisciculture and irrigation purposes but requires treatment before using for drinking.Keywords: Water pollution; Faecal coliform; Dissolved oxygen (DO); Biochemical oxygen demand (BOD).© 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi:10.3329/jsr.v3i1.6170                 J. Sci. Res. 3 (1), 151-159 (2011)

scholarly journals Trend Of Water Quality Status In Kelantan River Downstream, Peninsular Malaysia

2020 ◽  
Vol 16 (3) ◽  
pp. 178
Author(s):  
Arniza Fitri ◽  
Khairul Nizam Abdul Maulud ◽  
Dian Pratiwi ◽  
Arlina Phelia ◽  
Farli Rossi ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Water Samples ◽  
Human Activities ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Peninsular Malaysia ◽  
Water Quality Status ◽  
Quality Status

The issues of freshwater pollutions and the high demand of clean freshwater for daily human activities have forced developing countries such as Malaysia to continuously monitor the quality of the freshwater. The present study objective is to present the trend of water quality status in the Kelantan River downstream, Peninsular Malaysia from 2005 to 2018. Water samples were collected during dry and monsoon seasons from a sampling station located at downstream of the Kelantan River. Water quality parameters such as temperature, pH and dissolved oxygen (DO) were measured in situ while other parameters were analysed in the laboratory based on retrieved water samples. Water quality status was determined based on National Water Quality Standard (NWQS) for River in Malaysia by calculating the water quality index (WQI) according to the concentration of six water quality parameters involving pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (TSS) and Ammonia Nitrogen (AN). The results showed that Kelantan River had good water quality during the dry season classified in Class II at 2005. The water quality was found to be slightly lower during the monsoon season in year 2006. In addition, increasing the number of construction, human activities in the land use areas, land use changes and the sewage water from domestic, industrial, wet market and food outlets in the Kelantan State have declined the water quality in Kelantan River from Class II (in 2005) to Class III (in 2010 and 2011) and to become Class IV in 2017 to 2018. The results of the present study are expected to give valuable information for the water managers in order to deal with better strategies in controlling the quality of freshwater at the Kelantan River and minimize the incidence of pollution-oriented problems, thus the water can be utilized for various water uses with appropriate quality.

Can functional units of protozoan periphytons be used to evaluate ecological quality status under harmful algal blooms in marine ecosystems?

2021 ◽  
Author(s):  
Uroosa Uroosa ◽  
Syed Shabi Ul Hassan Kazmi ◽  
Mohammad Shafiqur Rahman ◽  
Henglong Xu
Keyword(s):  
Algal Blooms ◽  
Harmful Algal Bloom ◽  
Algal Species ◽  
Marine Ecosystems ◽  
Alexandrium Tamarense ◽  
Biological Traits ◽  
Ecological Quality ◽  
Ecological Quality Status ◽  
Functional Units ◽  
Quality Status

Abstract Based on biological traits the ecological quality status (EQS) under the pressure of two harmful algal bloom (HAB) species was evaluated using functional units (FUs) of protozoan periphytons. Five treatments with different concentrations of Alexandrium tamarense and Gymnodinium catenatum were designed as100, 102, 103, 104 and 105 cell ml− 1. A total of 21 FUs were identified from 25 test protozoan species. Vagile algivores with large sizes showed a decreasing trend towards high concentrations, while the vagile bacterivores and non-selectives with small sizes were dominating in concentrations (104 cell ml− 1) of both algal species. Ellipse test on pair-wise functional distinctness indices revealed a significant departure of test protozoan samples from an expected pattern when algal concentrations were over 104 cell ml− 1. Thus, it is suggested that FUs of protozoan periphyton assemblages may be used as a useful tool for evaluating the effects of HAB on ecological quality status in marine ecosystems.

scholarly journals Effect of Hindon River Water on Seed Germination of Mung Bean (Vigna radiata), Black Gram (Vigna mungo) and Wheat (Triticum aestivum) In-vitro

2018 ◽  
Vol 34 (5) ◽  
pp. 2622-2630
Author(s):  
Deepak Kumar ◽  
Sangeeta Kumari ◽  
Vinay Kumar
Keyword(s):  
Water Quality ◽  
Triticum Aestivum ◽  
Seed Germination ◽  
River Water ◽  
Vigna Radiata ◽  
Germination Rate ◽  
Oxygen Demand ◽  
Vigour Index ◽  
Water Quality Status ◽  
Quality Status

Today quality of river water is an issue of serious concern, nowadays wastewaters from almost all the industries and domestic effluent are discharged untreated in to the rivers and ultimately agriculture fields are being generally irrigated from these polluted water resources loaded with harmful toxic substances which drastically affect the yield. Keeping this in mind, the aim of this study was to analyse Hindon River water for physico-chemical properties (pH, Electrical conductivity (EC), Total alkalinity, Total dissolved solids (TDS), Total suspended solids (TSS), Dissolved Oxygen(DO), Biochemical Oxygen Demand (BOD), Chemical oxygen demand (COD), Chloride, Sulphate and Heavy Metals (Cr, As, Cu, Pb, Cd, Hg , Zn and Ni) to determine its water quality status in term of water quality index (WQI). In this study it is shown that water quality status of Hindon River deteriorated from very poor to unsuitable for drinking and agricultural practices. Additionally its effect on the germination of Vigna radiata, Vigna mungo & Triticum aestivum was investigated by treating with different concentrations 0% 25%, 50%, 75%, and 100%. It was found that concentration of 25% and 50% has stimulatory effects on germination rate, germination rate, seedling length, seedling vigour index and further increase in concentration beyond 50% showed inhibitory effects even on initial growth of these three plants. There was significant (at p≤0.05) differences in seed germination rate, root length, shoot length, fresh & dry weight and vigour index at different concentration of River water.

scholarly journals K-Means Method for Clustering Water Quality Status on The Rivers of Banjarmasin

2017 ◽  
Author(s):  
Tien Zubaidah ◽  
Nieke Karnaningroem
Keyword(s):  
Water Quality ◽  
Waste Disposal ◽  
Oxygen Demand ◽  
Biological Oxygen Demand ◽  
Clustering Techniques ◽  
Industrial Activities ◽  
Suspend Solid ◽  
Total Suspend Solid ◽  
Water Quality Status ◽  
Quality Status

The surface river water quality in Banjarmasin city tends to decline constantly as the result of direct and indirect waste disposal from various human activities along the river body. This study aimed to determine the vulnerability points against pollution in the rivers of Banjarmasin using clustering techniques with K-means algorithm. The parameters observed include Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspend Solid (TSS) and Dissolved Oxygen (DO). The data were collected at eight water monitoring stations on various rivers in Banjarmasin city. With the K-means method, four water quality status were clustered. The result showed that 6 stations observed during the period April to October 2016 were categorized into the heavy polluted cluster with major pollution point of sources came from the domestic and industrial activities.

Can tintinnids be used for discriminating water quality status in marine ecosystems?

2015 ◽  
Vol 101 (2) ◽  
pp. 549-555 ◽  
Author(s):  
Meiping Feng ◽  
Wuchang Zhang ◽  
Weiding Wang ◽  
Guangtao Zhang ◽  
Tian Xiao ◽  
...  
Keyword(s):  
Water Quality ◽  
Marine Ecosystems ◽  
Water Quality Status ◽  
Quality Status

scholarly journals KAJIAN KUALITAS AIR KAWASAN PERTAMBAKAN DI SUNGAI BUNTU, KENDAL Water Quality Assessment of Aquaculture Areas in Buntu River, Kendal

2019 ◽  
Vol 8 (3) ◽  
pp. 162-168
Author(s):  
Krisna Setiawan ◽  
Pujiono Wahyu Purnomo ◽  
Djoko Suprapto
Keyword(s):  
Water Quality ◽  
Oxygen Demand ◽  
Biological Oxygen Demand ◽  
Survey Method ◽  
Pollution Load ◽  
Purposive Sampling ◽  
Water Quality Status ◽  
Aquaculture Area ◽  
Quality Status ◽  
Aquaculture Effluent

ABSTRAK Sungai Buntu yang terletak di Kabupaten Kendal, Jawa Tengah merupakan daerah padat penduduk dan digunakan sebagai tempat pembuangan sisa tambak. Adanya aktivitas penduduk dan sisa tambak di sekitar sungai berpotensi membuat perairan menjadi tercemar. Tujuan dari penelitian adalah untuk mengkaji status mutu air menggunakan analisis STORET dan mengetahui beban pencemaran dari kawasan pertambakan yang masuk ke perairan sungai Buntu, Kabupaten Kendal ditinjau dari Biological Oxygen Demand (BOD), nitrat, nitrit dan amonia. Penelitian dilakukan pada bulan Desember 2018 dan Januari 2019. Metode yang digunakan pada penelitian adalah metode survey dan teknik pengambilan sampel menggunakan purposive sampling pada 4 stasiun dalam 2 minggu. Analisis status mutu air menggunakan metode STORET dan analisis beban pencemaran dengan persamaan BP= Q×Ci. Hasil pengukuran menunjukkan bahwa status mutu air di perairan sungai Buntu sebelum tambak dan pada kawasan tambak yaitu cemar sedang, serta bagian muara cemar ringan. Beban pencemaran BOD sebesar 551,67 ton/bulan, nitrat sebesar 20,89 ton/bulan, nitrit 2,66 ton/bulan dan amonia sebesar 2,46 ton/bulan. Ditinjau dari konsentrasi nitrat, sungai Buntu tergolong perairan oligotrofik. ABSTRACT Buntu river is located in Kendal city, Central Java. It is a dense population area and become a place that contain aquaculture effluent. Human activities and aquaculture effluent along the river cause water pollution. Aims of this study are to assess water quality status using STORET analysis and knows pollution load from aquaculture areas which flow to Buntu river, Kendal city based on concentration of Biological Oxygen Demand (BOD), nitrate, nitrite and ammonia. The study was conducted in December 2018 to January 2019 and used survey method. The technical method of sampling was using a purposive sampling on 4 stations in 2 weeks. Water quality status analysis used STORET method and pollution load analysis used BP= Q×Ci. The final result shows that water quality status in Buntu river is different in each station. The status before aquaculture area and at aquaculture area is medium polluted, and at estuary is low polluted. Pollution load of BOD is 551,67 tons/month, nitrate is 20,89 tons/month, nitrite is 2,66 tons/month and ammonia is 2,46 tons/month.

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