海洋网箱培养基因毒性潜势评价

F. Turan, M. Turgut
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引用次数: 2

摘要

背景和目的:海洋生态系统中的人为或水产养殖设施增加了富营养化过程。鱼类DNA损伤生物标志物检测基因毒性参数,用于生态风险评估。本研究的目的是用彗星法测定Iskenderun湾海水网箱培养对金头鲷(Sparus aurata)的遗传毒性潜势。方法:本研究于2017年1月在地中海东北部伊斯肯德伦湾的笼站和参考站进行。在野外和渔场采集了野生和养殖的金弧菌样本和水样。发现:本研究中,我们观察到鳙鱼鳃细胞和肝细胞的DNA损伤,与肝细胞相比,鳃细胞的DNA损伤水平更高,并分别在笼子和参考站的低尺度和最小尺度上进行了测定。本研究表明,笼站和参考站的TP值分别为0.020和0.016 mg/L,在边界和低于0.020 mg/L。笼站和参比站的DIN值分别为0.097和0.075 mg/L,均低于0.1 mg/L。笼和参比站的水体水质为中/中营养型。理化参数与DNA损伤的相关性表明,水中DIN、NH4-N、NO3-N和NO2-N与鳃细胞DNA损伤水平呈显著正相关。结论:本研究首次提供了Iskenderun湾海水网箱养殖对鳙鱼的遗传毒性损伤数据。本研究的结果是对海洋系统的预警,需要进一步详细的研究来确定污染源和监测环境污染。
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Evaluation of genotoxic potential induced by marine cage culture
BACKGROUND AND OBJECTIVES: The eutrophication process is increased by anthropogenic or aquaculture facilities in marine ecosystems. DNA damage biomarkers for fish species detect genotoxic parameters for ecological risk assessment. The aim of the present study was to determine genotoxic potential induced by marine cage culture in Iskenderun Bay on gilthead sea bream (Sparus aurata) using Comet assay.  METHODS: This study was conducted at cage and reference stations of Iskenderun Bay, Northeastern Mediterranean in January 2017. The wild and cultured samples of S. aurata and water samples were collected from wild and fish farm.  FINDING: The DNA damages at gill and liver cells of gilthead sea bream in the present study were observed with a higher level of DNA damage in gill cells compared to liver cells, and were determined at the low and minimal scale at the cage and reference stations, respectively. The present study demonstrated that the TP values were recorded at 0.020 and 0.016 mg/L in the cage and reference stations which are at border and below 0.020 mg/L. The DIN values were recorded at 0.097 and 0.075 mg/L in the cage and reference stations, which are at below 0.1 mg/L. The water bodies in the cage and reference stations exhibit Moderate/Mesotrophic water quality The correlations between physical-chemical parameters and DNA damage were shown that DIN, NH4-N, NO3-N and NO2-N in water revealed significant positive correlations with DNA damage levels in gill cells.  CONCLUSION: The present study provides the first data set on genotoxic damage induced by marine cage culture in Iskenderun Bay on gilthead sea bream. The result of this research is an early warning for the marine system and further detailed research is needed to establish the source of the pollution and monitor environmental pollution.
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来源期刊
CiteScore
7.90
自引率
2.90%
发文量
11
审稿时长
8 weeks
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