香港及珠江口海域有害赤潮发生机制初步探讨  

Preliminary studies on red tide formation mechanism in Hong Kong and Pearl River Estuary

作　　者：颜天[1] 周名江[1] 邹景忠[1] 钱培元[2] 

机构地区：[1]中国科学院海洋研究所,青岛266071 [2]香港科技大学

出　　处：《生态学报》2001年第10期1634-1641,共8页Acta Ecologica Sinica

基　　金：国家自然科学基金主任基金 (3 995 0 0 0 1 ) ;国家自然科学重大基金 (3 9790 1 1 0 ) ;国家自然科学基金 (4 990 60 0 7);香港马会项目PREEP;中国科学院知识创新工程 (KZCX2 -2 0 6)资助项目

摘　　要：回顾了香港及珠江口海域赤潮发生和藻毒素污染的历史及研究状况 ,结合 3种代表赤潮藻种最适光温盐生长实验 ,4种不同形态氮营养盐对几种常见赤潮藻种生长影响实验 ,以及不同营养盐、温度、盐度条件下赤潮藻群落变化过程实验 ,初步探讨了物理、化学、生物等环境因子在香港和珠江口海域赤潮发生中的作用机制。This paper reviews the history and present status of red tide and algal toxins occurrence in Hong Kong and Pearl River Estuary. As one of the most frequent HAB occurrence areas, Hong Kong first began its reporting of HAB events in the early 1970's. In 1983, Lam & Ho pointed out that the increasing HAB and related fish-killing events in Hong Kong were correlated with increased urbanization of that region. From 1980～1997, 496 HAB events were recorded in Hong Kong waters. According to the record, the most frequent HAB occurrence area in Hong Kong were at Tolo Harbour (which involved more than 70% of the total HAB events), Mirs Bay and Port shelter (which all locate at northeast of Hong Kong). In Hong Kong, 70% of the HAB happened during Dec. ～May. At least 58 HAB species are known to distribute in Hong Kong. Here, the main HAB species are N. Scintillans, S. costatum, G. polygramma, P. triestinum,P. minimum,C. furca,M. rubrum, G. splendens,P. sigmoidens, P. triquetra and L. minimus. Hong Kong is also considered to be a vulnerable area for foreign HAB species because it is such an internationally important marine transportation center. Several species of dinoflagellate cysts were found in ballast waters arriving Hong Kong from Aukland and California to Hong Kong. ;In Hong Kong, PSP was first detected in shellfish samples in Tolo Harbor in 1985. PSP in marine products from Hong Kong showed two peaks with the main peak occurring in the spring and the other in fall. Several illnesses were suspected to be caused by the consumption of DSP contaminated marine products in 1995. CFP (Ciguatera Fish Poisoning) is also a frequent algal toxin problem in the Hong Kong area. More than 200 documented CFP poisoning events have occurred in Hong Kong since 1989, resulting in more than 1 000 people being intoxicated. Although most of these CFP incidents were due to the consumption of imported coral reef fish, the causative HAB species Gambierdiscus toxicus,has also been found recently in local waters.;3-factor experime

关 键 词：赤潮 藻毒素 环境因子 香港 珠江口海域 

分 类 号：X55[环境科学与工程—环境工程]