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1983—1984年,我们在桑沟湾进行了12次海上调查。为进行调查,设了18个站位,其中包括湾口的两个站,我们分取表层和底层水样,进行活性磷酸盐的测定。测定方法采用磷钼蓝法。桑沟湾的底质类型大致可以分为基岩、砂砾石、中细砂、粉砂及泥质粉砂五类。潮汐属于不正规半日潮,平均大潮差为1.47m,小潮差为0.57m。湾内水温年平均为13℃左右,二月份水温最低,月平均温度低于2℃,八、九两月份水温最高,月平均高于24℃。湾内海水
In 1983-1984, we conducted 12 sea surveys in Sanggou Bay. For the purpose of the survey, 18 stations were set up, including two stations in Wan Kou. We collected surface and bottom water samples for determination of active phosphate. Determination of phosphorus molybdenum blue method. Sangou bay substrate types can be broadly divided into bedrock, sand and gravel, fine sand, silt and muddy silt five categories. Tides are irregular semi-day tide, the average tidal range is 1.47m, tidal range is 0.57m. The annual average temperature of the bay water is about 13 ℃. The temperature of the water in February is the lowest, the monthly average temperature is lower than 2 ℃, and the water temperature is the highest in August and September. The average monthly temperature is higher than 24 ℃. Bay sea water