大连湾赤潮生物的调查研究

本文报道了1979年4月至10月在大连湾进行赤潮生物调查研究的结果。在大连湾里，特别是臭水套、甜水套和大连湾沿岸海区已达到富营养级或过营养级。对于某些浮游生物的增殖以至发生赤潮具有一定条件。在该区域内，特别在夏季存在多种赤潮生物，是大连湾赤潮发生的潜在因素。文中对该区域内的浮游生物种类、分布范围、生物量，以及优势种和它的季节变化等作了叙述。

SURVEYS ON THE CAUSAL ORGANISMS OF RED TIDE IN DALIAN WAN

13 surveys on causal plankton of red tides were made from April to October 19T9in Dalian iTan. It revealed that the biomass of SkeLetanema castatem (Greville) Clovereached a coxicentration more than10⁴ cells/rnl in 5 surveys, while the hiornass of DactyliosoLera mediterraa Peragallo, Mesodisziwm rurxcm (Lohnzann) and Prorocen-tram micrcas Ehernberg reached more than 103 cells/ml in few surveys and morethan ten. species of common red tide causal organisms were also observed.