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辽河保护区干流水体生物毒性诊断与评价

郭伟1,范其阳1,可欣2**,桂少峰2,杨颜熙1,赵国庆1   

  1. (1沈阳农业大学农学院, 沈阳 110866; 2沈阳航空航天大学能源与环境学院, 沈阳 110136)
  • 出版日期:2014-10-10 发布日期:2014-10-10

Diagnosis and evaluation of biological toxicity for main stream of Liaohe River protection area.

GUO Wei1, FAN Qi-yang1, KE Xin2**, GUI Shao-feng2, YANG Yan-xi1, ZHAO Guo-qing1   

  1. (1College of Agriculture, Shenyang Agricultural University, Shenyang 110866, China; 2College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China)
  • Online:2014-10-10 Published:2014-10-10

摘要:

测定了斑马鱼(Danio rerio)急性和慢性毒性,结合水质综合指数分析,对辽河保护区干流水体健康进行了诊断。结果表明:斑马鱼成鱼及幼鱼的存活率超过50%,鱼卵的孵化率超过50%,说明水体生物毒性较低;水体pH、COD、BOD5与斑马鱼成鱼、幼鱼存活率、鱼卵孵化率之间呈显著的负相关关系(P<0.05),说明水体中pH、COD和BOD5对斑马鱼成鱼、幼鱼及其鱼卵的发育影响较大;水质综合指数评价表明,一统河断面为国家Ⅴ类水质,其他各断面均达到国家Ⅳ类水质标准。
 

关键词: 稳定同位素, 基线, 海洋生态系统, 特定化合物稳定同位素

Abstract:

The aquatic environment quality of Liaohe River protection area was diagnosed and evaluated by the aquatic comprehensive index and biological toxicity test. The results showed that the survival rates of adult and juvenile zebrafish and the hatching rate of eggs were all more than 50%, suggesting that the biological toxicity of water by acute and chronic toxicity tests was low. Furthermore, there were significant negative correlation relationships between pH, COD, BOD5 and the survival rates of adult and juvenile zebrafish or the hatching rate of eggs (P<0.05). Therefore, the pH, COD, and BOD5 had great effects on the development of adult and juvenile zebrafish and eggs. The aquatic quality comprehensive index showed that Yitong River reached grade V and the other rivers reached grade IV of China’s National Water Quality Standards.
 

Key words: baseline, marine ecosystem, stable isotope, compound specific stable isotope