Assessment of water pollution induced by anthropogenic activities on zooplankton community in Mariout Lake using statistical simulation

Can thiol compounds be used as biomarkers of aquatic ecosystem contamination by cadmium?Due to anthropogenic activities, heavy metals still represent a threat for various trophic levels. If aquatic animals are exposed to heavy metals we can obviously observe considerable toxicity. It is well known that an organism affected by cadmium (Cd) synthesize low molecular mass thiol compounds rich in cysteine (Cys), such as metallothioneins (MT) and glutathione (GSH/GSSG). The aim of this study was to summarize the effect of Cd on level of thiol compounds in aquatic organisms, and evaluate that the concentrations of thiol compounds are effective indicators of Cd water pollution and explain their potential use in biomonitoring applications.

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Spatio-Temporal Assessment of Zooplankton Fauna of Uta Ewa Estuary, Akwa Ibom State, Nigeria.

Omni-Akuatika ◽

10.20884/1.oa.2020.16.2.822 ◽

2020 ◽

Vol 16 (2) ◽

pp. 151

Author(s):

Udeme Effiong Jonah ◽

Emeka Donald Anyanwu ◽

Diane Akudo Avoaja

Keyword(s):

Water Quality ◽

Water Temperature ◽

Anthropogenic Activities ◽

Water System ◽

Zooplankton Community ◽

Dominant Group ◽

Significant Difference ◽

Spatio Temporal ◽

Taxonomic Groups ◽

Temporal Assessment

Estuaries are influenced by the mixture of river water with seawater; creating unique ecosystems with several physical and chemical processes affecting the water quality. Spatial and temporal assessment of the composition, abundance, and distribution of zooplankton fauna of Uta Ewa Estuarine water system was carried out between May 2019 and February 2020 to assess the effects of anthropogenic activities on the zooplankton assemblage. Water and Zooplankton samples were collected from three (3) stations using standard procedures. Some parameters like water temperature, dissolved oxygen, hydrogen-ion, electrical conductivity, and turbidity were determined in-situ. The ranges of the physico-chemical parameters were: water temperature (24.9-25.3oC), EC (62.3-70.9mS/m), pH (6.5-6.7), turbidity (12.0-28.0NTU), DO (3.8-4.7mg/L), BOD (2.3-3.2mg/L), phosphate (3.2-5.2mg/L), and nitrate (3.0-6.3mg/L). ANOVA showed a significant difference (p<0.05) in the spatial and temporal means values of some parameters. A total of 1,067 individuals from 30 zooplankton taxa and 4 taxonomic groups were recorded. Rotifers (33.4%) were the dominant group, followed by protozoa (32.9%), copepods (20.9%) and cladocerans (13.8%). Station 1 had the highest abundance (388 individuals), station 2 (303 individuals) and station 3(375 individuals). The higher number of individuals (193) was recorded in August 2019. The biodiversity indices pointed to slightly polluted to stable environment. This study showed that the water quality and zooplankton community was influenced by anthropogenic activities both spatially and temporally but season also played a major role in the temporal variation. In conclusion, the water quality was deteriorating due to anthropogenic activities, which in turn affected the structure of zooplankton community. Keywords: Abundance, Assessment, Zooplankton, Physicochemical, Estuary

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Water quality and zooplankton community of the Eme River, Umuahia, Southeast Nigeria

Limnology and Freshwater Biology ◽

10.31951/2658-3518-2021-a-5-1186 ◽

2021 ◽

pp. 1186-1194

Author(s):

E.D. Anyanwu ◽

◽

O.G. Adetunji ◽

S.N. Umeham ◽

◽

...

Keyword(s):

Water Quality ◽

Community Structure ◽

Human Activities ◽

Anthropogenic Activities ◽

Zooplankton Community ◽

Sand Mining ◽

Sample Collection ◽

Zooplankton Community Structure ◽

Filtration Method ◽

Pollution Indicator

Abstract. Aquatic ecosystems and biota are often adversely affected by anthropogenic activities. Consequently, zooplanktons have been used to monitor anthropogenic impacts because of their sensitivity to their environment. Water quality and zooplankton community of the Eme River, Umuahia, was assessed between December 2017 and November 2018. The study was carried out in six stations in relation to human activities. Human activities in the watershed were dominated by sand mining. A quantitative filtration method was used for the zooplankton sample collection while standard sample collection and analytical methods were used for the water samples. The zooplankton species recorded were 27 while the most abundant zooplankton group was Rotifera. A known pollution indicator, Daphnia pulex, had the highest number of individuals. The effects of human activities in the watershed were reflected in the results of some of the physicochemical parameters of the river. The zooplankton assemblage and community structure also reflected the effects of human activities in the river. Combined effects of human activities and season contributed to the relatively low zooplankton abundance recorded particularly in some downstream stations. The impacts of sand mining on water quality and zooplankton were more remarkable in the downstream stations (4 6) where the activity was intense while a large number of children swimming and related activities during the dry season had some impacts in station 1. The dominance of indicator and tolerant species indicated that the river was undergoing eutrophication. Sand mining among other observed anthropogenic activities was a major contributor to the nutrient enrichment in the river. The major water quality parameters influencing the zooplankton community structure was revealed by canonical correspondence analysis.

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Seasonal and Spatial Water Pollution Status at The Rivers Estuaries in Cirebon Region

SQUALEN Bulletin of Marine and Fisheries Postharvest and Biotechnology ◽

10.15578/squalen.505 ◽

2021 ◽

Vol 16 (2) ◽

pp. 75-82

Author(s):

Izhamil Hidayah ◽

Hedi Indra Januar ◽

Dwiyitno Dwiyitno ◽

Nining Betawati Prihantini

Keyword(s):

Water Pollution ◽

Anthropogenic Activities ◽

Pollution Index ◽

Pollution Level ◽

Surrounding Area ◽

The West ◽

Storage And Retrieval ◽

Java Sea ◽

West Monsoon

Cirebon has 18 rivers that flow into the Java Sea. The Cirebon rivers play an important role in several sectors such as industrial, agriculture, household, and also aquaculture. The increasing anthropogenic activities, may have affected the health and quality of the Cirebon rivers and the surrounding area. This study aimed to determine the water pollution level of Cirebon rivers based on the Storage and Retrieval (STORET) and Pollution Index approaches. The study was conducted at seven different rivers located in the districts (kabupaten) and municipals (kotamadya) of Cirebon. The observation was performed during the end of the west monsoon (March 2019) as well as the beginning (July 2019) and the end of the east monsoon (November 2019). The STORET score of the Cirebon district rivers were between -10 and -20, which is categorized as lightly to moderately polluted. Similarly, most of the Cirebon municipal rivers were moderately contaminated throughout the year (-18 to -30). In contrast, the Pollution Index (PI) values of all observed rivers were between 1.0 to 5.0 which are categorized as lightly polluted.

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Contamination of Dhanmondi and Gulshan Lake Waters with Some Metals and Inorganic Pollutants

Journal of Bangladesh Academy of Sciences ◽

10.3329/jbas.v34i1.5495 ◽

1970 ◽

Vol 34 (1) ◽

pp. 89-93 ◽

Cited By ~ 2

Author(s):

Muhammad Zamir Hossain ◽

Gazi Md Ahsanul Kabir ◽

Shamshad Begum Quraishi

Keyword(s):

Water Pollution ◽

Water Resources ◽

Anthropogenic Activities ◽

Inorganic Pollutants ◽

Lake Waters ◽

Academy Of Sciences ◽

The City ◽

Soil And Water ◽

Three Components

Air, soil and water are continuously being polluted by the anthropogenic activities andsometimes by natural calamities. Among the three components, water pollution perhaps is the mostimportant one. The contamination of water resources and biota is of major concern especially inindustrialized countries because of the discharge of toxic, persistent and bio-accumulativesubstances from various sources. Household wastes dumped by the city dwellers contribute also toa great extent to the pollution of urban areas.Key words: Contamination; Lake waters; Metals; Inorganic pollutantsDOI: 10.3329/jbas.v34i1.5495Journal of Bangladesh Academy of Sciences, Vol.34, No.1, 89-93, 2010

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Applications of green synthesized nanomaterials in water remediation

Current Pharmaceutical Biotechnology ◽

10.2174/1389201021666201027160029 ◽

2020 ◽

Vol 21 ◽

Author(s):

Nakshatra Bahadur Singh ◽

Md. Abu Bin Hasan Susan ◽

Mridula Guin

Keyword(s):

Water Pollution ◽

Industrial Development ◽

Carbon Nanomaterials ◽

Anthropogenic Activities ◽

Critical Issue ◽

Water Remediation ◽

Population Increase ◽

Green Method ◽

Living Organisms ◽

Purification Of Water

: Water is the most important component on the earth for living organisms. With the industrial development, population increase and climate change, water pollution becomes a critical issue around the world. Its contamination with different types of pollutants created naturally or due to anthropogenic activities has become most concerned global environmental issues. These contaminations destroy the quality of water and become harmful to living organisms. Number of physical, chemical and biological techniques has been used for purification of water but they suffer in one or the other respect. Development of nanomaterials and nanotechnology has provided a better path for purification of water. Compared to conventional methods using activated carbon, nanomaterials offer better and economical approach for water remediation. Different type of nanomaterials acting as nanocatalysts, nanosorbents, nanostructured catalytic membranes, bioactive nanoparticles, nanomembranes and nanoparticles provide an alternative and efficient methodology in solving water pollution problems. However, the major issue with nanomaterials synthesized in a conventional way, is their toxicity. In recent days considerable amount of research is being carried out on the synthesis of nanomaterials using green routes. Nanomaterials synthesized by using green method are now being used in different technologies including water remediation. Remediation of water by using nanomaterials synthesized by green method has been reviewed and discussed in this paper.

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Extremophiles and Their Application in Bioremediation

10.4018/978-1-7998-9144-4.ch009 ◽

2022 ◽

pp. 188-206

Author(s):

Himanshu Pandey ◽

Devendra Singh ◽

Vinay Kumar Dhiman ◽

Vivek Kumar Dhiman ◽

Devendra Pandey

Keyword(s):

Water Pollution ◽

Heavy Metals ◽

Heavy Metal ◽

Environmental Conditions ◽

Anthropogenic Activities ◽

Heavy Metal Stress ◽

Extreme Conditions ◽

Alkaline Ph ◽

Immense Potential

A microorganism dwelling in severe environmental conditions is termed an extremophile. These unfavorable environmental conditions include high salinity, toxin compounds, heavy metals, unfavorable temperature, and extremely acidic and alkaline pH. Microorganisms belonging to prokaryotes include true bacteria and archaea bacteria which prevail in harsh environments. In recent years, extremophilic, basically, archaea bacteria have been reported for their immense potential application in the bioremediation process. Bioremediation is a technique that utilizes microorganisms for the decomposition of organic and inorganic pollutants; anthropogenic activities are the basic cause of soil pollution, water pollution, and air pollution globally. Extremophiles are capable of producing enzymes that are thermolabile and can function normally even in extreme conditions. These enzymes and proteins can be utilized in the bioremediation process under extreme pH, heavy metal stress, and unfavorable temperature conditions. In this chapter, the role of extremophiles in bioremediation is discussed.

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