Monitoring of phytoplankton biomass and nutrients in a polluted stream

Koçum, Esra; Dursun, O. Faruk

doi:10.1504/ijep.2007.014236

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…When the quantities of phytoplankton in the river were high, chlorophyll a levels reached [100 lg L -1 as maximum value (Admiraal et al 1994;Skidmore et al 1998;Balbi 2000;Hatch 2002;Kocum and Dursun 2007). In comparison, chlorophyll a concentrations of the Shin and Kasuga rivers in this study were high.…”

Section: Source Of High Concentrations Of Chlorophyll a And Methanecontrasting

confidence: 51%

“…Chlorophyll a concentrations in the river were reported to be \50 lg L -1 in previous studies (Murakami et al 1994; Prahl et al 1998;Ietswaart et al 1999;Balbi 2000;Kocum and Dursun 2007;Salmaso and Braioni 2008). When the quantities of phytoplankton in the river were high, chlorophyll a levels reached [100 lg L -1 as maximum value (Admiraal et al 1994;Skidmore et al 1998;Balbi 2000;Hatch 2002;Kocum and Dursun 2007).…”

Section: Source Of High Concentrations Of Chlorophyll a And Methanementioning

confidence: 87%

“…Organic substances are produced and accumulate in these areas, leading to eutrophication (Admiraal et al 1994;Murakami et al 1994Murakami et al , 1998Hatch 2002;Kocum and Dursun 2007). Decomposition of these organic substances causes a decrease in dissolved oxygen, resulting in an anaerobic environment and consequent degradation of the river ecosystem.…”

Section: Introductionmentioning

confidence: 99%

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Organic pollution in dammed river water in a low-precipitation region of Japan

2010

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The annual averages of chlorophyll a concentration were approximately 150 and 40 lg L -1 in the Shin and Kasuga rivers, respectively. The concentration often exceeded 500 lg L -1 in the Shin River in winter. Dissolved oxygen saturation exhibited marked variation. High and low values, i.e., [150% in the surface water layer and 0% in the bottom water layer, were occasionally observed. Dissolved methane concentrations [2,000 nM were often observed from spring to fall. In both rivers, the serious organic substance pollution was confirmed through 1 year.

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Section: Source Of High Concentrations Of Chlorophyll a And Methanecontrasting

confidence: 51%

Section: Source Of High Concentrations Of Chlorophyll a And Methanementioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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Organic pollution in dammed river water in a low-precipitation region of Japan

2010

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“…The main inputs caused by agriculture, forestry, grazing, raw sewage, and industrial discharges may pose an ecological risk to the Sarıçay ecosystem. Along the Sarıcay Stream are many industrial plants such as food, leather, mining (lead, zinc and gold) and timber processing (Aksoy et al, 1997;Kocum and Dursun, 2007;Alkan, 2020). Additionally, on the sides of Saricay Stream, there are gas stations and an airport.…”

Section: Study Areamentioning

confidence: 99%

Trace Metal-Induced Ecological Risk Analysis of Sarıçay River Sediments, Çanakkale, NW Turkey

AKARSU

Kükrer

Ergi̇nal

2022

International Journal of Environment and Geoinformatics

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Metals have come to the fore among the pollutants monitored in aquatic ecosystems in recent years. Fresh waters especially constitute a "hot spot" due to their limited reserves. In order to analyze the sources of metal-induced pollution, ecological risk level and pollutants of the Sarıçay River passing through the city of Çanakkale, sediment samples were collected from 26 stations and element analyses were carried out in ICP-MS. Anthropogenic effects and the risks they cause were determined by calculating the enrichment factor, geoaccumulation index, and potential ecological risk from the obtained data. Anthropogenic enrichment was detected for Cr, Ni, Pb, Au, Ag and Ba, Bi, Tl, Na, Zn, Mg, K, As, Sb, and Mn with the largest amount being Cd. The level of enrichment varies from moderate to very high. According to the results of risk analysis, a moderate risk for Cd was determined and a very high risk for Ni and Pb. Agricultural activities, atmospheric deposition and mineral deposits in the basin were identified as the major sources from the multivariate statistical analysis performed to determine the main sources of metal inflows.

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Autotrophic nanoplankton dynamics is significant on the spatio-temporal variation of phytoplankton biomass size structure along a coastal trophic gradient

Koçum

2020

Regional Studies in Marine Science

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Monitoring of phytoplankton biomass and nutrients in a polluted stream

Cited by 5 publications

References 20 publications

Organic pollution in dammed river water in a low-precipitation region of Japan

Organic pollution in dammed river water in a low-precipitation region of Japan

Trace Metal-Induced Ecological Risk Analysis of Sarıçay River Sediments, Çanakkale, NW Turkey

Autotrophic nanoplankton dynamics is significant on the spatio-temporal variation of phytoplankton biomass size structure along a coastal trophic gradient

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