scholarly journals Refocusing on Nonpriority Toxic Metals in the Aquatic Environment in China

2017 ◽  
Vol 51 (6) ◽  
pp. 3117-3118 ◽  
Author(s):  
Zhiyou Fu ◽  
Wenjing Guo ◽  
Zhi Dang ◽  
Qing Hu ◽  
Fengchang Wu ◽  
...  
Keyword(s):  
Toxic Metals ◽  
Aquatic Environment

Unionacean Clams as Indicators of Persistent Substances in Fresh Water

1983 ◽  
Vol 15 (S1) ◽  
pp. 37-42
Author(s):  
A Forester
Keyword(s):  
Fresh Water ◽  
Food Chain ◽  
Toxic Metals ◽  
Aquatic Environment ◽  
Extended Period ◽  
Coastal Pollution ◽  
Biological Availability ◽  
Abundance Distribution ◽  
Secondary Function ◽  
Shield Lakes

Measurement of total or nominal pollutant concentration in the physical compartment of the aquatic environment (water, sediments, etc.) seldom gives a valid indication of the ultimate threat to the ecosystem. An alternative is to use a living organis to reflect the biological availability of the contaminant and to integrate its changing levels in the environment by monitoring over an extended period. Pelecypods have been used as indicators of marine coastal pollution, but have received relatively little attention in fresh waters. The large, unionacean clams and mussels show a number of features which suggest that they would be useful as monitors of biological availability of freshwater pollutants: ability to accumulate a wide variety of contaminants; mode of feeding; position on food chain; longevity; sedentary habits; facility with which their age can be determined; abundance; distribution; size and hardiness. The current programme is concerned with: (1) evaluating unionaceans as potential indicators and the factors that affect pollutant uptake; (2) development of the methodology for monitoring; and (3) characterisation of the pollutant status of Ontario shield lakes which are subject to direct inputs of toxic metals with the precipitation and their mobilisation through the ecosystem as a secondary function of environmental acidification.

scholarly journals ENTEROCOCCUS SP ISOLATED FROM AQUATIC ENVIRONMENT : RESISTANCE TO TOXIC METALS

2019 ◽  
pp. 82-97
Author(s):  
Luciana Furlaneto-Maia ◽  
Gabriela Batista Gomes Bravo ◽  
Sharise Beatriz Roberto ◽  
Naiara de Oliveira Batista ◽  
Alex Kiyomassa Watanabe ◽  
...  
Keyword(s):  
Toxic Metals ◽  
Aquatic Environment

scholarly journals New Insights into Impacts of Toxic Metals in Aquatic Environments

Environments ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Elise David ◽  
Claudia Cosio
Keyword(s):  
Toxic Metals ◽  
Aquatic Environment ◽  
Anthropogenic Activities ◽  
Aquatic Environments ◽  
Chemical Contamination

Chemical contamination of the aquatic environment, as a consequence of anthropogenic activities, remains of major worldwide concern [...]

Electron Microscopy in the Study of Natural Phytoplankton Assemblages

1985 ◽  
Vol 43 ◽  
pp. 620-623
Author(s):  
Linda Sicko-Goad
Keyword(s):  
Electron Microscopy ◽  
Aquatic Environment ◽  
Size Range ◽  
Physical Parameters ◽  
Specific Information ◽  
Phytoplankton Assemblages ◽  
Phytoplankton Productivity ◽  
Ecosystem Effects ◽  
Time Of Year ◽  
Species Specific

Although the use of electron microscopy and its varied methodologies is not usually associated with ecological studies, the types of species specific information that can be generated by these techniques are often quite useful in predicting long-term ecosystem effects. The utility of these techniques is especially apparent when one considers both the size range of particles found in the aquatic environment and the complexity of the phytoplankton assemblages.The size range and character of organisms found in the aquatic environment are dependent upon a variety of physical parameters that include sampling depth, location, and time of year. In the winter months, all the Laurentian Great Lakes are uniformly mixed and homothermous in the range of 1.1 to 1.7°C. During this time phytoplankton productivity is quite low.

Lycopene alleviates sulfamethoxazole-induced hepatotoxicity in grass carp (Ctenopharyngodon idellus) via suppression of oxidative stress, inflammation and apoptosis

2020 ◽  
Vol 11 (10) ◽  
pp. 8547-8559
Author(s):  
Hongjing Zhao ◽  
Yu Wang ◽  
Mengyao Mu ◽  
Menghao Guo ◽  
Hongxian Yu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Secondary Metabolites ◽  
Human Health ◽  
Grass Carp ◽  
Aquatic Environment ◽  
Ctenopharyngodon Idellus

Antibiotics are used worldwide to treat diseases in humans and other animals; most of them and their secondary metabolites are discharged into the aquatic environment, posing a serious threat to human health.

Medium-frequency acoustic methods and tools for the study of the aquatic environment.

2020 ◽  
Author(s):  
N.A. Grekov ◽  
◽  
A.N. Grekov ◽  
E.N. Sychov ◽  
◽  
...  
Keyword(s):  
Aquatic Environment ◽  
Medium Frequency ◽  
Acoustic Methods
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