胶州湾增养殖海域营养状况与赤潮形成的初步研究  

PRELIMINARY STUDY ON RED TIDE OCCURRENCE IN RELATION TO NUTRITIONAL CONDITION IN AQUACULATURE SEAWATER OF JIAOZHOU BAY

作　　者：郝建华[1] 霍文毅[1] 俞志明[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071

出　　处：《海洋科学》2000年第4期37-41,共5页Marine Sciences

基　　金：国家自然科学基金!39790110

摘　　要：根据对胶州湾女姑山增养殖海域1998年5月～9月的连续监测资料，参照潜在性富营养化的概念，应用NQI指数对该海域的营养状况进行分析。认为该海域水质富营养化是7月3～8日Skeletonemacostatum和Biddulphiaaurita混合型赤潮形成的基础，磷、硅营养盐的消耗是赤潮消亡的主要原因；赤潮消亡之后浮游植物群落发生演替，水体叶绿素a仍保持较高含量，NQI指数也相应较高，水质表现为磷限制潜在性富营养化，由于磷酸盐的限制没有发展为赤潮。In 1998 continuous surveys were conducted in situ to monitor red tide in Nugushan seawater of Jiaozhau Bay, and the red tide caused by Skeletonema costatum and Biddulphia aurita during 7. 3-7. 8 was recorded. Based on the concept of potential eutrophication, the Nutrient Quality Index (NQI) was used to assess the nutritional condition of seawater. The results showed that nutrient-enrichment was the basis of this red tide, silicate and phosphate were two key factors withering away this red tide; From then on, minitype diatom was replaced by larger diatom, the sea area was in the stage of phosphorus-limited potential eutophication and the algal proliferation was restricted, but the condition was easily changed by external complement.

关 键 词：胶州湾 营养状况 潜在性富营养化 赤潮 海洋污染 

分 类 号：X55[环境科学与工程—环境工程]