Effects of Acute and Chronic Heavy Metal (Cu, Cd, and Zn) Exposure on Sea Cucumbers (Apostichopus japonicus)
Joint Authors
Li, Li
Tian, Xiangli
Yu, Xiao
Dong, Shuanglin
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-12
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Acute and chronic toxicity tests were conducted with sea cucumber (Apostichopus japonicus) exposed to heavy metals.
Acute toxicity values (96 h LC50) were 2.697, 0.133, and 1.574 mg L−1 for Zn, Cu, and Cd, respectively, and were ranked in order of toxicity: Cu > Cd > Zn.
Under chronic metal exposure the specific growth rates of sea cucumbers decreased with the increase of metal concentration for all the three metals.
After acute metal exposure, the oxygen consumption rate (OCR) decreased.
The OCRs in all groups were significantly different than control ( P < 0.05 ) except in the group treated with 1.00 mg L−1 Zn ( P < 0.05 ), where the increase of OCR was observed.
The OCRs in groups chronically exposed to metals were significantly lower than that in the control group ( P < 0.05 ).
The activity of both pyruvate kinase (PK) and hexokinase (HK) in sea cucumbers followed: respiratory tree > muscle > intestine in natural sea water.
After chronic Zn, Cu, and Cd exposure, the change pattern of HK and PK in respiratory tree, muscle, and intestine varied slightly.
However, the activity of the enzyme showed a general trend of increase and then decrease and the higher the exposure concentration was, the earlier the highest point of enzyme activity was obtained.
American Psychological Association (APA)
Li, Li& Tian, Xiangli& Yu, Xiao& Dong, Shuanglin. 2016. Effects of Acute and Chronic Heavy Metal (Cu, Cd, and Zn) Exposure on Sea Cucumbers (Apostichopus japonicus). BioMed Research International،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1097806
Modern Language Association (MLA)
Li, Li…[et al.]. Effects of Acute and Chronic Heavy Metal (Cu, Cd, and Zn) Exposure on Sea Cucumbers (Apostichopus japonicus). BioMed Research International No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1097806
American Medical Association (AMA)
Li, Li& Tian, Xiangli& Yu, Xiao& Dong, Shuanglin. Effects of Acute and Chronic Heavy Metal (Cu, Cd, and Zn) Exposure on Sea Cucumbers (Apostichopus japonicus). BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1097806
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1097806