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Toxic Effects of Zinc on the Development, Growth, and Survival of Red Sea Bream Pagrus major Embryos and Larvae
Huang, Wei1,2; Cao, Liang1,2; Shan, Xiujuan1,2; Xiao, Zhizhong1; Wang, Qiyao1; Dou, Shuozeng1
2010
Source PublicationARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume58Issue:1Pages:140-150
SubtypeArticle
AbstractThis study investigated the zinc toxicity to red sea bream Pagrus major embryos and larvae at 18 +/- A 1A degrees C (33 +/- A 1aEuro degrees in salinity) under laboratory conditions. The acute toxicity tests indicated that zinc 48-h LC50 to embryos and 96-h LC50 to larvae were 4.3 (3.3-6.3; 95% confidence limits) and 10.1 (9.0-11.4) mg l(-1), respectively, suggesting that embryos were more sensitive than larvae to zinc exposure. The subchronic toxicity test, in which embryos and larvae were continuously exposed to 0, 0.1, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0, and 2.5 mg Zn2+ l(-1) solutions for 10 days, demonstrated that waterborne zinc had distinctly toxic effects on the development, growth, and survival of red sea bream embryos and larvae. Zinc exposure at concentrations a parts per thousand yen 0.5 mg l(-1) would lead to a low hatching rate (19-78%, vs. 98% in controls), high mortality (29-91%, vs. 10% in controls), and morphological abnormality (12-77%, vs. 0.3% in controls) in embryos and larvae, while it caused delay in time-to-hatch in embryos at concentrations a parts per thousand yen 1.0 mg l(-1). These four biological parameters were zinc concentration dependent and could be effective bioindicators for evaluating the toxicity of zinc to the early life stage of this fish. Heartbeats of embryos (9-13 beats 10 s(-1)) were relatively low and were not significantly influenced by zinc concentration, although they rose remarkably with elevated zinc concentration in larvae at the end of the test, particularly when it was a parts per thousand yen 1.0 mg l(-1) (36-38, vs. 31 beats 10 s(-1) in controls). The total length (L-T) of the larvae at the end of the test was reduced by 12.2% and 15.6% in the 1.0 and 2.0 mg l(-1) solutions but did not vary significantly in other solutions in comparison with the controls. Heartbeat and L-T were less sensitive to zinc exposure and might not be good biological parameters for determining the toxicity of zinc to the early life stage of red sea bream.
DOI10.1007/s00244-009-9348-1
Indexed BySCI
Language英语
WOS IDWOS:000273665000015
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/32877
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Huang, Wei,Cao, Liang,Shan, Xiujuan,et al. Toxic Effects of Zinc on the Development, Growth, and Survival of Red Sea Bream Pagrus major Embryos and Larvae[J]. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2010,58(1):140-150.
APA Huang, Wei,Cao, Liang,Shan, Xiujuan,Xiao, Zhizhong,Wang, Qiyao,&Dou, Shuozeng.(2010).Toxic Effects of Zinc on the Development, Growth, and Survival of Red Sea Bream Pagrus major Embryos and Larvae.ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,58(1),140-150.
MLA Huang, Wei,et al."Toxic Effects of Zinc on the Development, Growth, and Survival of Red Sea Bream Pagrus major Embryos and Larvae".ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 58.1(2010):140-150.
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