An analysis of the aquatic macrophyte,Myriophyllum exalbescens, as an indicator of metal contamination of aquatic ecosystems near a base metal smelter

1980 ◽  
Vol 24 (1) ◽  
pp. 597-605 ◽  
Author(s):  
W. G. Franzin ◽  
G. A. McFarlane
Keyword(s):  
Base Metal ◽  
Metal Contamination ◽  
Aquatic Ecosystems ◽  
Aquatic Macrophyte ◽  
Myriophyllum Exalbescens ◽  
Metal Smelter

Atmospheric fallout in the vicinity of a base metal smelter at Flin Flon, Manitoba, Canada

1979 ◽  
Vol 13 (12) ◽  
pp. 1513-1522 ◽  
Author(s):  
William G. Franzin ◽  
Gordon A. McFarlane ◽  
Andrew Lutz
Keyword(s):  
Base Metal ◽  
Atmospheric Fallout ◽  
Flin Flon ◽  
Metal Smelter

scholarly journals Interaction between resource identity and bacterial community composition regulates bacterial respiration in aquatic ecosystems

2015 ◽  
Vol 75 (4 suppl 1) ◽  
pp. 150-157
Author(s):  
A. P. F. Pires ◽  
A. Caliman ◽  
T. Laque ◽  
F. A. Esteves ◽  
V. F. Farjalla
Keyword(s):  
Bacterial Community ◽  
Community Composition ◽  
Functional Diversity ◽  
Aquatic Ecosystems ◽  
Aquatic Macrophyte ◽  
Bacterial Community Composition ◽  
Bacterial Respiration ◽  
Bacterial Populations ◽  
Linear Pattern ◽  
Composition Structure

Abstract Resource identity and composition structure bacterial community, which in turn determines the magnitude of bacterial processes and ecological services. However, the complex interaction between resource identity and bacterial community composition (BCC) has been poorly understood so far. Using aquatic microcosms, we tested whether and how resource identity interacts with BCC in regulating bacterial respiration and bacterial functional diversity. Different aquatic macrophyte leachates were used as different carbon resources while BCC was manipulated through successional changes of bacterial populations in batch cultures. We observed that the same BCC treatment respired differently on each carbon resource; these resources also supported different amounts of bacterial functional diversity. There was no clear linear pattern of bacterial respiration in relation to time succession of bacterial communities in all leachates, i.e. differences on bacterial respiration between different BCC were rather idiosyncratic. Resource identity regulated the magnitude of respiration of each BCC, e.g. Ultricularia foliosa leachate sustained the greatest bacterial functional diversity and lowest rates of bacterial respiration in all BCC. We conclude that both resource identity and the BCC interact affecting the pattern and the magnitude of bacterial respiration in aquatic ecosystems.

The chemical and physical characteristics of heavy metals in humus and till in the vicinity of the base metal smelter at Flin Flon, Manitoba, Canada

1998 ◽  
Vol 34 (1) ◽  
pp. 39-58 ◽  
Author(s):  
P. J. Henderson ◽  
I. McMartin ◽  
G. E. Hall ◽  
J. B. Percival ◽  
D. A. Walker
Keyword(s):  
Heavy Metals ◽  
Base Metal ◽  
Physical Characteristics ◽  
Flin Flon ◽  
Metal Smelter

scholarly journals Development of freshwater microalgae under exposure to atrazine and cadmium

2020 ◽  
Vol 3 (4) ◽  
pp. 299-306
Author(s):  
Văn Phát Lê ◽  
Minh Tân Võ ◽  
Nguyễn Hồng Sơn Lê ◽  
Ngân Hà Nguyễn ◽  
Phương Thảo Hoàng ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Growth Rate ◽  
Human Activities ◽  
Aquatic Environment ◽  
Metal Contamination ◽  
Aquatic Ecosystems ◽  
Water Bodies ◽  
Negative Effects ◽  
Freshwater Microalgae ◽  
Herbicide Atrazine

  During the latest decades, human activities have contributed a large number of pollutants such as heavy metals, herbicides into water bodies. These pollutants cause negative effects on the aquatic environment and organisms in aquatic ecosystems, including microalgae. This study aimed to evaluate the impacts of the herbicide atrazine and the metal Cd on development and growth rate of four freshwater microalgae, Scenedesmus quadricauda, Scenedesmus protuberans, Pediastrum duplex, and Pseudanabaena mucicola. We found that atrazine at the concentrations from 3–300 µg/L caused the reduction of development of S. quadricauda and P. mucicola. The growth rate of these two microalgae was inhibited upon exposure to 300 µg/L of atrazine. The Cd at the concentrations of 17–143 µg/L slightly influenced the development and growth rate of P. duplex. In contrast, the concentrations of 46–123 µg Cd/L, enhanced the development of S. protuberans between the 6th and 10th day of incubation. The development and growth rate of S. protuberans decreased exposed to 607 µg Cd/L. The current study evidenced the potent toxicity of atrazine to microalgae. Besides, the microalgae species P. duplex and S. protuberans showed their tolerance to Cd at the concentration up to 143 µg/L. Hence they would be potential candidates for phytoremediation in relation to metal contamination in water bodies.

Effect of annealing treatment on the crystallisation and leaching of dumped base metal smelter slags

2010 ◽  
Vol 183 (1-3) ◽  
pp. 294-300 ◽  
Author(s):  
Kasonde Maweja ◽  
Tshikele Mukongo ◽  
Richard K. Mbaya ◽  
Emela A. Mochubele
Keyword(s):  
Base Metal ◽  
Annealing Treatment ◽  
Metal Smelter

scholarly journals A new method for the characterisation and quantitative speciation of base metal smelter stack particulates

2010 ◽  
Vol 177 (1-4) ◽  
pp. 165-192 ◽  
Author(s):  
James M. Skeaff ◽  
Yves Thibault ◽  
David J. Hardy
Keyword(s):  
Base Metal ◽  
New Method ◽  
Metal Smelter
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