大窑湾养殖区赤潮甲藻孢囊种类组成及分布的研究

魏洪祥; 赵文; 梁玉波

doi:10.3724/SP.J.1035.2011.00489

大窑湾养殖区赤潮甲藻孢囊种类组成及分布的研究

魏洪祥¹,
赵文^1, ,,
梁玉波^1,2

1.
大连海洋大学生命科学与技术学院, 辽宁省水生生物学重点实验室, 大连 116023
2.
国家海洋环境监测中心, 大连 116023

基金项目:

国家十一五科技支撑计划项目(2006BAD09A01)

辽宁省教育厅创新团队项目(2007T016)资助

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出版历程
- 收稿日期: 2010-03-07
- 修回日期: 2010-12-14
- 发布日期: 2011-05-24

STUDIES ON SPECIES COMPOSING AND DISTRIBUTION OF DINOFLAGELLATE CYST IN DAYAO BAY

1.
Liaoning Provincial Key Laboratory of Hydrobiology, College of Life Science and Technology, Dalian Ocean University, Dalian 116023, China;
2.
National Marine Environmental Monitoring Center, Dalian 116023, China

摘要

摘要: 20062007年对大窑湾养殖区的甲藻孢囊进行了研究,结果检出10种甲藻孢囊,分属于4大类9种甲藻孢囊,其中原多甲藻类孢囊2种,膝沟藻类孢囊5种,钙质类孢囊1种,裸甲藻类孢囊1种,一种艉杆藻(Ensiculifera Balech)和一种易碎藻(Fragilidium mexicanum)是中国沿海新记录的两个种类,此外还有一种无法鉴定到种的一种原多甲藻孢囊。膝沟藻类孢囊的种类数占绝对优势,占50%,其次是原多甲藻类孢囊占30%,钙质类孢囊和裸甲藻类孢囊各占10%。10种孢囊中有3种异养型孢囊和7种自养型孢囊。并发现两种产麻痹性贝毒(PSP)的孢囊塔玛亚历山大藻/链状亚历山大藻复合体(Alexandrium tamarense/A.catenella)和链状裸甲藻(Gymnodinium catenatum)。孢囊密度的季节分布呈现明显的双峰型,在2007年1月份和2007年的8月份出现了两个高峰。2007年的1月份达到了调查全年的孢囊密度最高值,达到了1.09103 cysts/g湿重,2007年的8月份出现的第二次高峰期孢囊密度达到了0.86103 cysts/g湿重。孢囊密度最低值出现在2007年的10月,只有280 cysts/g湿重。全年孢囊平均密度为695.5 cysts/g湿重。甲藻孢囊的多样性指数除了2007年的9月和10月以外,相差不大,变化范围为0.170.55,全年的平均值为0.46。
- 甲藻孢囊 /
- 种类组成 /
- 分布 /
- 大窑湾海区
Abstract: Dinoflagellate cyst in the Dayao Bay, southern Liaoning, where the scallops and oysters were largely culti-vated, was investigated from 2006 to July 2007. 10 species of dinoflagellate cysts in total were identified, which repre-sented 4 general kinds of dinoflagellate cysts, including 2 species of Protoperidinioid, 5 species of Gonyaulacoid and 1 species of Calciodinellid. One species of Gymnodinioid, Ensiculifera Balech and one species of Fragilidium mexicanum of dinoflagellate cysts were freshly recorded in the sea area of China. Gonyaulacoid was the most common and abundant cyst type of all species of dinoflagellate cysts, which took up 50%, Protoperidinioid was 30%, Calciodinellid and Gymnodinioid were each 10% respectively. One species of Protoperidinioid dinoflagellate cysts could not be identified to genus. Three species of dinoflagellate cysts belonged to heterotrophic dinoflagellate cysts, and seven belonged to autotrophic dinoflagellate cysts. Two species of cyst produced by toxic dinoflagellate (Alexandrium tamarense, A. catenella and Gymnodinium catenatum) were also recorded, which produced Paralytic Shellfish Poisoning. The seasonal change curve of dinoflagellate cysts density had two obviously fastigium, which occurred on January and August 2007. The first highest density of dinoflagellate cysts appeared in January 2007, 1090 cysts/g W, and the second highest ap-peared in August 2007, 855 cysts/g W. The lowest density of dinoflagellate cysts appeared in October 2007, only 280 cysts/g W. The average density of dinoflagellate cysts was 695.5 cysts/g W all the year. The value of Shannon-Weaver diversity index (H) varied between 0.17 to 0.55, which were similar on each month except on September and October 2007. The average of species diversity index was 0.46.
- Dinoflagellate cyst /
- Species composition /
- Distribution /
- Dayao Bay in Dalian

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参考文献(12)

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大窑湾养殖区赤潮甲藻孢囊种类组成及分布的研究

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STUDIES ON SPECIES COMPOSING AND DISTRIBUTION OF DINOFLAGELLATE CYST IN DAYAO BAY

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