摘要
目的 :为了解深圳海域 ,包括深圳湾、大鹏湾和伶仃洋的 9个站位浮游植物的种类组成及数量分布 .方法 :依据国家海洋局制订的《海洋调查规范》进行调查 .结果 :确认深圳海域共有12 5种 (变种、变型 )浮游植物 ,主要为硅藻 ,占浮游植物总量的 90 %以上 ,以角毛藻 (Chaetoceros)、根管藻 (Rhizosolenia)及海链藻 (Thalassiosira)居多 ;甲藻以原甲藻 (Prorocentrum)为多 .浮游植物的水平分布为 :东部以角毛藻为优势种群 ,西部以骨条藻 (Skeletonemacostatun)占优势 .秋末冬初总体上分析浮游植物数量并不算高 .但个别站位如大鹏湾的盐田海域数量高达 17.2× 10 6 /L ;西部的深圳湾也达 11.7× 10 5/L .叶绿素a含量从 1.10mg·m- 3 (S4 站位 )到 2 .34mg·m- 3 (S2 站位 ) .结论 :浮游植物中有约 2 0种为赤潮生物 ,发现有有毒的塔码亚历山大藻 (Alexandriumtamarense)及短裸甲藻(Gymnodiniumbreve) ,应引起高度重视 .
Aim: Phytoplankon in Shenzhen coasts were investigated in 1998.The explored area included Shenzhen Bay, Dapeng Bay and Ling-ding Waters. Methods: The investigation was carried out according to the 'Specfication of Oceanographic Investigation' issued by the State Oceanic Administration. Results: 125 taxa (species,varieties and forms ) were identified in Shenzhen coasts. The main organisms were diatoms, consistuting above 90% of the total phytoplankton, with Chaetoceros, Rhizosolenis and Thalassiosira as dominant genera. Prorocentrum of dinoflagellates was also found to be relatively predominant. Horizontal distribution of phytoplankton was analized as well. Chlorophyll a contents along the coasts of Shenzhen were between 1.10 mg·m -3 ( S 4 ) and 2.34 mg·m -3 ( S 2 ). Conclusion: About 20 phytoplankton species are recognized as red tide causative organism. Alexandrium tamarense and Gymnodinium breve are toxic.
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
2001年第5期122-126,共5页
Journal of Jinan University(Natural Science & Medicine Edition)
基金
国家自然科学基金资助项目 ( 3 9790 110 )
