大连市区南部沿海赤潮发生及其影响的调查吕建发，孙成明，朱丽岩（辽宁省海洋水产研究所，大连１１６０２３）１、前言大连市区南部沿海，是重要的海水养殖区和海滨风景旅游区。由于海洋环境污染等多种因素的影响，近年来多次发生赤潮，造成增养殖生物的大批死亡，海水浴... Survey on Occurrence and Impact of Red Tide in the Coastal Area of ​​Southern Dalian Lv Jianfa, Sun Chengming, Zhu Liyan (Liaoning Provincial Institute of Marine Fisheries, Dalian 116023) 1. Introduction Dalian coast is an important mariculture area and seaside scenic tourist area. Due to the pollution of the marine environment and other factors, red tides occur frequently in recent years, resulting in a large number of deaths of aquaculture organisms and seawater baths.