College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China.
College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; COSCO Shipping Heavy Industry Technology (Weihai) Co., Ltd., Weihai 264203, China.
Mar Pollut Bull. 2024 Aug;205:116566. doi: 10.1016/j.marpolbul.2024.116566. Epub 2024 Jun 13.
The dinoflagellate cysts present in the ballast water sediment of foreign ships in Shanghai Port have not been previously studied. Therefore, sediment samples were collected from the ballast water of 16 foreign ships in Shanghai Port, and the types of dinoflagellate cysts were identified and their abundance was calculated, with a specific focus on the analysis of toxic and harmful dinoflagellates. Moreover, simulations of temperature and salinity conditions throughout the year in the Shanghai port waters were conducted to carry out dinoflagellate cyst germination experiments, with analyze and compare the germinated dinoflagellate cysts under different conditions. Dinoflagellate cysts were found in 100 % of the ship sediment samples, including a total of 9 species of toxic and harmful dinoflagellate cysts. In the germination experiment, 15 °C was found to be the optimal temperature for the germination of dinoflagellate cysts in ballast water sediment, and high salinity is more favorable for cyst germination.
上海港外轮压载水沉积物中的甲藻孢囊以前尚未进行过研究。因此，从上海港的 16 艘外轮的压载水中采集了沉积物样本，并对甲藻孢囊的类型进行了鉴定和丰度计算，特别关注了有毒有害甲藻的分析。此外，还模拟了上海港水域全年的温度和盐度条件，进行了甲藻孢囊萌发实验，分析比较了不同条件下萌发的甲藻孢囊。在船底沉积物样本中发现了 100%的甲藻孢囊，其中包括总共 9 种有毒有害的甲藻孢囊。在萌发实验中，发现 15°C 是压载水沉积物中甲藻孢囊萌发的最佳温度，而高盐度更有利于孢囊萌发。
