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湛江港浮游植物与赤潮植物的初步研究
吕颂辉¹, 齐雨藻¹, 钱宏林², 梁松²
1.暨南大学水生生物研究所广州 510632;2.国家海洋局南海分局广州 510300

摘要:

于1987年8月在湛江港设13个点采样。鉴定表明，共有浮游植物37属94种和变种；优势种类有中肋骨条藻、日本星杆藻、佛氏海毛藻等。湛江港浮游植物密度较高，港内外平均达1.3×10⁴ cell/L和7.3×10⁵ cell/L。经单项营养指数和营养状态结合指数分析表明，除两个点无机氮浓度略超标外，所有站位均未达到富营养化水平。调查期间，共发现赤潮生物31种，其中主要有中肋骨条藻、日本星杯藻、佛氏海毛藻、尖刺菱形藻和夜光藻等，中肋骨条漠和日本星杆藻曾形成水华。

关键词: 湛江港浮游植物赤潮生物

DOI：

分类号:

基金项目:国家自然科学基金资助，9389008号

STUDIES ON PHYTOPLANKTON AND RED TIDE CAUSATIVE SPECIES IN ZHANJIANG HARBOUR, SOUTH CHINA SEA

Lu Songhui¹, Qi Yuzao¹, Qian Honglin², Liang Song²

1.Institute of Hydrobiology, Jinan University, Guangzhou 510632;2.South China Sea Bronch, SOA, Guangzhou 510300

Abstract:

A study on phytoplankton from 13 stations in Zhanjiang Harbour in the west Guangdong coast, South China Sea, was carried out in August, 1987, Ninety four taxa were identified in total. Assorted dominant species included Skeletonema costatum, Asterionella japonica, Thalassiothrix frauenfeldii, etc. The mean phytoplanliton density was relatively high, 1.3×10⁴ cell/L and 7.3×10⁵ cell/L in the inner and outer harbour waters respectively. Analysis of nutrient concentration period revealed that the harbour was mesotrophic. Among the 94 species, 31 were red tide causative species, including Skeletonema costatum, Nitzschia pungens, Noctiluca scintillans, etc, Bloom caused by S. costatum and A. japonica was found during the study period.

Key words: Zhanjiang Harbour, Phytoplankton, Red tide causative species

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