河北省特色海产品创新团队虾蟹岗位在沧州举办水产养殖技术培训班

作者:刘丽东 刊名:河北渔业 上传者:吴绶镐

【摘要】2018年3月6-7日,河北省特色海产品创新团队虾蟹岗联合国家虾体系沧州试验站、特色海产品创新团队沧州试验站在沧州市联合举办“2018年水产养殖技术培训班”,特别邀请创新团队首席专家李怡群、其他岗位专家、创新团队一期岗位专家参加,沧州市有关养殖企业等91人参加了培训。

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《河北渔业》2 0 1 8年 第 4 期 (总 第 2 9 2期) ◦ 坏境与资源 Ecological effects analysis of heavy metals in surface sediments in offshore waters of the northern Liaodong Bay CHE L in -p in g (Panjin. Ocean, and Fishery Science Research Institute»Panjin. 124010 »China) Abstract : In order to understand and discuss the ecological effects and potential ecological risk of heavy metal pollution in offshore waters of the northern Liaodong Bay,heavy metals in surface sediments in offshore waters of the area was surveyed on August 2017, and their concentrations, ecological effects and potential ecological risk were discussed. The average concentrations of Cu,Pb,Zn,Cd,Hg andAs are 25. 80、21. 83、80. 91、0. 28、0. 06 and 12. 72 mg/kg,respectively. The ecological effects analysis shows that the concentrations of As(7 sites) are posi­ tioned between effect range low (ERL) and effect range median (ERM) , indicating that they may occasionally cause adverse ecological effects. The concentrations of Cu,Pb,Zn,Cd and Hg at all sites are all lower than ERL, indicating that these metals may almost not cause the adverse ecological effects. According to the potential ecolog­ ical risk index(RI) calculations,a higher potential ecological hazard for Cd,As and Hg is detected in the area. The potential ecological risk assessment shows that the order of potential ecological riskwas Cd> As> Hg> Cu>Pb $ Zn,the contaminated areas were mainly distributed in the northern estuaries of Liaodong Bay. Key words: heavy metals ; ec

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