食蚊鱼鳃上台湾棘带吸虫囊蚴内种群的月变化

曾伯平; 廖翔华; 聂品; 王桂堂

食蚊鱼鳃上台湾棘带吸虫囊蚴内种群的月变化

湖南文理学院生命科学系, 常德 415000
2. 中山大学生命科学院, 广州 510275
3. 中国科学院水生生物研究所, 武汉 43007

基金项目:

国家自然科学基金资助项目(No.39370123No.30270229)

中国科学院高级访问学者专项经费资助

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- 发布日期: 2005-11-24

MONTHLY CHANGES OF THE METACERCARIAL CYST INFRAPOPULAION OF THE DIGENEAN, CENTROCESTUS FORMOSANUS IN THE GILL LAMELLAE OF THE MOSQUITO FISH

Department o f lifescience, Hunan U niversity o f A rts and Science, Changde 415000;
2. School o f LifeScience, Zhongshan University, G uangzhou 510275;
3. Institute o f Hydrobiology, TheChineseA cademy o f Science, Wuhan 430072

摘要

摘要: 1993年7月-1994年6月,作者对食蚊鱼鳃上台湾棘带吸虫囊蚴内种群的变化进行了为期12个月的研究,结果表明:食蚊鱼种群数量和种群重量的月变化相似,但两者与水温没有相关性;食蚊鱼种群的体长结构呈季节性动态变化规律;食蚊鱼的感染与其自身的生长紧密相关,感染率、感染强度表现出了与体长相似的变化趋势;中间的两组鳃片寄生的囊蚴较多,不同鳃片组囊蚴平均密度的月变化规律一致,食蚊鱼任何两个鳃片组分布的台湾棘带吸虫囊蚴的平均数差异都显著(P0.001);囊蚴在食蚊鱼鳃上的分布为聚集分布。
- 台湾棘带吸虫 /
- 囊蚴内种群 /
- 食蚊鱼 /
- 鳃
Abstract: The present paper deals with the monthly change of metacercarial cyst infrapopulation ofthe digenean, Centrocestusfor mosanus, In the lamellae ofgills ofmosquito fishes (Gambusia affinis).The population number and weight ofmosquito fishes fluctuated similarly in twelve months.The population body structure of mosquito fishes was correlated with the seasonal variation ofwater temperatures.The prevalence, relative density and mean intensity of infection varied respectively 89192 ? 7103%, 5134 ?1193, 4190 ? 2101, and were only directly correleted with the body length ofthehost mosquito fishes,not with the seasonal varia2tions ofwater temperature.The longer the body length,the higher the prevalence, and vice versa, and so were the mean intensityand relative density.The distribution ofthe metaceriae cysts in the gills showed similarmonthly regular changes in different groupsofgill but the metacercariae cysts number of group 2 and group 3 were more than group 1 and group 4.The distribution of themetacercariae cysts in the gills ofmosquito fishes sampled in different months showed aggregated distribution with a large numberof cysts being in a small number of mosquito fishes, and most mosquito fishes were infected with less cysts, but the degree ofag gregation increased with the mean density ofthe metacercarial cyst infrapopulation. From the spread way and effect and the samehabitat of the mosquito fish and the definitive host of this parasite,We can infer that the mosquito fish was one of kind ofthemostadaptive and stable second intermediate host of Centrocestusformosanus.
- Mosquito fish /
- Gill /
- Centrocestusformosanus /
- Metacercarial cyst

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参考文献(11)

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食蚊鱼鳃上台湾棘带吸虫囊蚴内种群的月变化

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出版历程

MONTHLY CHANGES OF THE METACERCARIAL CYST INFRAPOPULAION OF THE DIGENEAN, CENTROCESTUS FORMOSANUS IN THE GILL LAMELLAE OF THE MOSQUITO FISH

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