Concentrations of copper, iron, lead, nickel and zinc in freshwater algal blooms

Trollope, D.R.; Evans, B. S.

doi:10.1016/0013-9327(76)90023-9

Cited by 66 publications

(16 citation statements)

References 9 publications

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“…Blum (1956) in fact suggested that Cladophora is the most abundant alga in streams throughout the world and it has been assessed as more suitable than any other alga for its ability to accumulate metals (e.g. Keeney et a/., 1976;Trollope & Evans, 1976 spring and summer 1983. Before use in the experiments, both algae were washed thoroughly in the brook water from which they were taken as they were encrusted with epiphytic diatoms.…”

Section: Uptake Experimentsmentioning

confidence: 99%

Short-term uptake of heavy metals by periphyton algae

Vymazal

1984

Hydrobiologia

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The utilization of periphyton activity for the removal of heavy metals from enriched small streams has been examined. By means of short-term batch laboratory experiments the courses of metal uptake have been studied. For uptake study naturally growing periphyton community and periphytic filamentous algae Cladophoraglomerata and Oedogonium rivulare have been used. Uptakes of nine heavy metals -Pb, Cd, Cu, Co, Cr, Ni, Zn, Fe and Mn -have been determined during four hours'exposure. In addition the influence of humic substances on heavy metals uptake has been determined.Uptake of all metals increased during four hours' exposure but not in the same way. Some metals were removed continuously (Ni, Cr, Fe and Mn), other metals were removed more rapidly during the first hour or first two hours of exposure and then only slight removal continued (Cu, Pb, Cd, Co). Uptake of Zn was rather unambiguous. Results of these experiments suggest that the course of uptake for individual metals could be similar for most periphyton algae.it was established that humic substances significantly reduce heavy metals uptake. The highest decrease of uptake was observed in Cu, Cr, Co and Cd.The results of model experiments are being tested in a pilot scale with respect to the demands of engineering practice.

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Section: Uptake Experimentsmentioning

confidence: 99%

Short-term uptake of heavy metals by periphyton algae

Vymazal

1984

Hydrobiologia

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“…Printed in the Netherlands. been shown to concentrate heavy metals to a large extent (Trollope & Evans, 1976). Mine drainage can also be expected to reduce substantially algal species diversity in a stream (Weaks, 1982).…”

Section: Introductionmentioning

confidence: 99%

Effects of pH on toxicity of As, Cr, Cu, Ni and Zn to Selenastrum capricornutum Printz

Michnowicz

Weaks

1984

Hydrobiologia

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Acute toxicity tests were conducted to establish the response of Selenastrum capricornutum Printz to sublethal concentrations of As, Cr, Cu, Ni and Zn at a broad range ofpH levels. Cultures were incubated for a period of seven days at pH 4 in standard algal assay media containing sublethal concentrations of metals. At this low pH, growth was depressed for all metals tested. The adjustment of pH to higher levels resulted in increased growth when cultures were treated with As, Cu, or Ni and incubated for an additional 7 days. Toxicity was least at the optimum pH range for growth of the alga.The observation that the toxicity of As, Cu, and Ni to S. capricornutum decreases markedly at pH values above 4.0 may be of ecological importance in the control of acid mine pollution. Ifa high percentage of algae show a similar response to decreasing toxicity with increasing pH, it clearly would be of value to adopt measures which control pH as well as the levels of metals present. It was suggested that algae with a broad pH growth range, such as S. capricornutum, could benefit from the addition of highly alkaline materials to waters where certain metals are present.

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“…Similar results were obtained by Sigee et al (1988) in a comparison of BCF and the chemical composition of the water. The lack of an inverse relationship between Ni and Al, and the reduced relationships recorded for most other elements in the Pará estuary ( Figure 6) may reflect the capacity of phytoplankton to bioaccumulate and store these elements at a rate proportional to their adsorption (Trollope and Evans 1976).…”

Section: Discussionmentioning

confidence: 99%

Chemical composition of phytoplankton from the estuaries of Eastern Amazonia

et al. 2014

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Phytoplankton is important bioindicator of chemical and biological modifications of natural ecosystems. The objective of this study was to determine the total chemical composition of the phytoplankton of the Pará and Mocajuba estuaries on the eastern coast of the Amazon region in the Brazilian state of Pará. The chemical composition of the surface water, bottom sediments (total sample and bioavailable fraction), and the phytoplankton were determined by inductively coupled plasma optical emission spectrometry. Phytoplankton contained high concentrations of Ca, P, Mn, Fe, Zn, Al, Ba, and Pb. The phytoplankton of the Mocajuba estuary is rich in Fe (2,967-84,750 µg g ), probably reflecting divergent anthropogenic inputs. Both samples indicated a high bioconcentration factor derived from both the water and the bioavailable fraction, reflecting the efficiency of these organisms in the concentration of metals. KEYWORDS: Sediments, trace metals, plankton, surface water Composição química do fitoplâncton de estuários da Amazônia oriental RESUMO O fitoplancton é de grande importância para os estudos das interações solo-água, como indicadores de modificações químicas e biológicas nos ecossistemas naturais. O objetivo desse estudo foi determinar a composição química total do fitoplâncton nos estuários do rio Pará e Mocajuba (Pará, Brasil). As análises químicas foram realizadas na água superficial, sedimento de fundo (amostra total e fração biodisponível) e no fitoplancton, por espectrometria óptica e de massa com plasma indutivamente acoplado. A composição química elementar do fitoplancton é composta por elevadas concentrações de Ca, P, Mn, Fe, Zn, Al, Ba e Pb. O fitoplancton do estuário do rio Mocajuba é rico em Fe (2.967 a 84.750 µg g

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Concentrations of copper, iron, lead, nickel and zinc in freshwater algal blooms

Cited by 66 publications

References 9 publications

Short-term uptake of heavy metals by periphyton algae

Short-term uptake of heavy metals by periphyton algae

Effects of pH on toxicity of As, Cr, Cu, Ni and Zn to Selenastrum capricornutum Printz

Chemical composition of phytoplankton from the estuaries of Eastern Amazonia

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