Environmental behavior of and gastropod biomarker response to trace metals from a backwater area of Xian'nv lake

Ecotoxicology and Environmental Safety
Yong JiHao Zhang

Abstract

Combined with sediment pollutant analysis, the gastropod Cipangopaludina cahayensis was chosen as an indicator organism to evaluate the environmental behavior of trace metals and the aquatic ecological risk that they present in a backwater area of Xian'nv Lake. Based on hydrological characteristics, 24 sampling sites representing the main stream (MS), tributaries (TR), lake area (LA) and lake tributaries (LT) were collected. The results revealed that cadmium (Cd) was the main pollutant and that it significantly accumulated in sediments of the research area. Based on the pollutant concentrations, the degree of Cd pollution was ranked in the following order: LA > MS > TR > LT. Several intersections between the rivers and Xian'nv Lake, including LA1, LA7 and LA 10, were observed to have higher Cd deposition. There was a significant difference in the spatial distribution of pollutants, which resulted in a higher accumulation of trace metals in the backwater area and its tributary. The Cd content in the visceral sac of C. cahayensis was positively correlated with the concentration of heavy metals in the sediment. The response of multiple antioxidant biomarkers, including superoxide dismutase (SOD), catalase (CAT), and glutathione S-...Continue Reading

References

May 20, 1999·Ecotoxicology and Environmental Safety·A Vaglio, C Landriscina
May 20, 1999·Annual Review of Pharmacology and Toxicology·C D KlaassenS Choudhuri
Apr 11, 2003·Environmental Pollution·R Prego, A Cobelo-García
Jun 12, 2003·The Science of the Total Environment·Suwarna PandeySheikh Raisuddin
Jul 2, 2004·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Claire DautremepuitsGuy Vernet
Sep 2, 2008·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Seonock WooJae-Chun Ryu
Jan 18, 2011·Journal of Environmental Sciences (China)·Yong JiHao Wu
Jun 3, 2016·Environmental Science and Pollution Research International·Yan ZhangQinghui Meng
Dec 30, 2017·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Laura SonnackMartina Fenske
May 14, 2018·The Science of the Total Environment·Till J J HanebuthMaria Isabel Reguera
Jul 22, 2018·Ecotoxicology and Environmental Safety·Maria BonsignoreMario Sprovieri
Sep 10, 2018·Journal of Environmental Sciences (China)·Jinhe WangGuanhua Zhou

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.