Lee Moon Ock, Kim Jong Kyu, Kim Byeong Kuk
Faculty of Marine Technology, Chonnam National University, Yeosu 550-749, Republic of Korea.
Mar Pollut Bull. 2016 Dec 15;113(1-2):165-175. doi: 10.1016/j.marpolbul.2016.09.001. Epub 2016 Sep 23.
We investigated the factors influencing the origin of Cochlodinium polykrikoides blooms along the Goheung coast (GH), and compared them to those along the Geoje (GJ) coast and in the East China Sea (ECS) which were used as reference sites. Stratification did not develop in GH during C. polykrikoides blooms, unlike that in GJ. The surface salinity during summer in ECS was equivalent to that of GH, whereas surface temperature and concentration of nutrients in ECS were markedly higher than those in GH or GJ. Thermohaline (or thermal) fronts appeared between the Korea Southern Coastal Water (KSCW) and the outer seawater during C. polykrikoides blooms. The result of numerical simulation models indicated that freshwater from the Yangtze River clearly affected KSCW. As a result, the origin of C. polykrikoides blooms in GH during summer could be attributed to the inflow of seawater from ECS with high water temperature and abundant nutrients.
我们调查了影响固着类多甲藻（Cochlodinium polykrikoides）在固城海岸（GH）形成水华的因素，并将其与巨济（GJ）海岸及作为参考地点的东海（ECS）的相关因素进行了比较。在固着类多甲藻水华期间，固城并未出现分层现象，这与巨济不同。东海夏季的表层盐度与固城相当，而东海的表层温度和营养盐浓度明显高于固城或巨济。在固着类多甲藻水华期间，韩国南部沿岸水（KSCW）与外海海水之间出现了温盐（或热力）锋面。数值模拟模型的结果表明，长江淡水对韩国南部沿岸水有明显影响。因此，夏季固城固着类多甲藻水华的起源可归因于来自东海的高温且营养丰富的海水的流入。
