厦门附近海域浮游甲藻类的分布

DISTRIBUTION OF PLANKTONIC PYRROPHYTA IN THE WATERS AROUND XIAMEN ISLAND

本文报道了厦门附近海域浮游甲藻类49种,并对其生态特性以及与海洋环境因素的关系进行了详细研究与讨论。分析的204号样品,系1980年9月至1981年8月,逐月采自厦门海域的浔江区(Ⅰ区),西港区(Ⅱ区)和九龙江口区(Ⅱ区)。

The materials used in the present study were collected monthly at 17 stations in the waters of Xunjiang, Xi Gang and Jiulongjiang River estuary around Xiamen Island from September 1980 to August 1981. As a result of preliminary analysis of these samples, 49 species of planktonic pyrrophyta were identified, belonging to 13 genera in 11 families, 49% of which are eurythcrmic species, and 51% warm water species.In the region studied there are 9 dominant species:Prorcentrum micans, Dino-physis caudata, Ceratium furca, Cer. fusus, Cer.trichoceros, Peridinium conicum, Per.diver gens, Per.steinii and Noctiluca scintillans.The total number of pyrrophyta cells in the waters around Xiamen Island, shows two annual peaks: a major peak in June, and the secondary peak in September-October. The effects of temperature, salinity, marine current and monsoon on the numerical distribution and seasonal variation of pyrrophyta were discussed.