摘要
用南极长城湾水域１９９２～１９９５年三个夏季（１２月～３月）网采浮游植物样品，分析了浮游植物种类组成和数量分布。共鉴定浮游植物７２种，其中三个夏季都采到的共有种３３种，占总种数的４５．８３％；各年夏季浮游植物细胞数量平均值分别为６８７３．８２×１０４个／ｍ３、２０８．４８×１０４个／ｍ３和１０２７．３６×１０４个／ｍ３。主要优势种有聚生角毛藻（Ｃｈａｅｔｏｃｅｒｏｓｓｏｃｉａｌｉｓ）、海链藻属（Ｔｈａｌａｓｉｏｓｉｒａｓｐｐ．）、脆杆藻属（Ｆｒａｇｉｌａｒｉａｓｐｐ）、珍珠异极藻（Ｇｏｍｐｈｏｎｅｍａｍａｒｇａｒｉｔｘ）和扁面角毛藻（Ｃｈａｅｔｏ－ｃｅｒｏｓｃｏｍｐｒｅｓｕｓ）等。结果表明，各夏季种类组成基本相似；数量有明显的年际变化；
Species composition and concentration of the phytoplankton were analyzed from net samples in three summers (December to March in the year of 1992-1995) in the Antarctic Great Wall Bay. A total of 72 species were identified, 45 83% of which, i.e. 33 species, were found in all three summers. Total concentrations of the phytoplankton in the three summers averaged 6873 82×10 4 , 208 48×10 4 and 1027 36×10 4 cells/m 3, respectively. The dominant species were Chaetoceros socialis, Thalassiosira spp., Fragilaria spp., Gomphonema margaritx and Chaetoceros compressus . The results show that species composition of the phytoplankton is similar in the summers, whereas the total cell number changs significantly from one summer to another,and the cell number variation is similar at both inside and the mouth of the bay.
出处
《极地研究》
CAS
CSCD
1999年第1期39-45,共7页
Chinese Journal of Polar Research
关键词
浮游植物
夏季
年际变化
长城湾
南极
藻类
phytoplankton,year to year variation,summer,Great Wall Bay
