唐山祥云湾海洋牧场水质的变化规律与评价

Analysis on the phytoplankton community structure of the ocean ranch in Xiangyun Bay

为了解祥云湾人工礁区的水质情况,2019—2020年对祥云湾海洋牧场海水环境条件进行调查,结果显示:海水盐度变化不大,平均为30.91‰,礁区透明度低于对照区。溶解氧含量在9月最高,变化范围为8.10~8.81 mg/L。COD含量在3月最高,9月最低,浓度变化范围为0.83~1.48 mg/L。活性磷酸盐含量变化范围为0.01~0.02 mg/L,礁区的DIN含量比对照区高。海域环境处于磷中等限制潜在性富营养水平。

In order to understand the water quality of the artificial reef area,the seawater environmental conditions of the Xiangyun Bay Marine Ranch was investigated from 2019 to 2020.The results showed that the salinity of the seawater did not change much,with an average of 30.91‰,and the transparency of the reef area was lower than the control area.The dissolved oxygen content was the highest in September,with a range of 8.10~8.81 mg/L.The COD content was the highest in March and the lowest in September,and the concentration range was 0.83~1.48 mg/L.The range of active phosphate content was 0.01~0.02 mg/L,and the DIN content in the reef area was higher than that in the control area.The marine environment is at a potential eutrophication level with moderate phosphorus restriction.