摘要
于1990年3月－1992年6月对中国南海大鹏湾盐田附近海域的夜光藻种群动态及时空分布进行综合调查。结果表明，夜光藻种群的出现期间一般为每年的1－6月，最早是1991年的12月，数量高峰期为3－5月，种群密度的波动极为显著；调查期间共发生8次赤潮，且都发生在3月初至5月初；大鹏湾夜光藻赤潮的发生特点是，赤潮的发生和消失突然，持续时间短，一般不超过3d；调查海域夜光藻种群的空间分布模式为近岸的高于中央水域的，表面的高于底层的。
Seasonal and geographical distributions of Noctiluca scintillans in DapengBay, the South China Sea, were investigated from March 1990 to June 1992 The firstoccurrence of N scintdtons in the plankton was in January for 1990 and Decemberfor 1992. The density fluctuated remarkably, but increased to a peak between lateMarch and early May. Afterward, the populations declined rapidly, and disappearedcompletely from the plankton. The time of disaPpearance differed slightly. dependingon the year; it disappeared by the begitring of June in 1990, in late May in 1991and late June in 1992.There were eigh N scintdtons blooms (indicated by pink patches and sticks ofNoctiluca covering the water surfaee in the study area) throughout the investigation Dell densities during blooms were generally higher than 104 cell / L. The highestdensity of 2.8 ×105 cell / L was observed at Sl on April lst, 1990 The following wereobserved during the N. scintillans blooms that occurred in Dapeng Bay: (1) theblooms occurred and disaPpeared abruPtly; (2) in general, the blooms did not continued for over three days; (3) the intervals between two neighbor blooms were generally short.As noted in previous studies, N. scintillans population densities in the center ofthe Bay, and surfaee water were higher than those in the coast and near bottom.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1996年第5期493-498,共6页
Oceanologia Et Limnologia Sinica
基金
国家自然科学基金!9389008
