| 草鱼鳃上台湾棘带吸虫囊蚴内种群空间格局参数的月变化 |
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| 引用本文： | 曾伯平,廖翔华.草鱼鳃上台湾棘带吸虫囊蚴内种群空间格局参数的月变化[J].湘潭师范学院学报(社会科学版),1998(6). |
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| 作者姓名： | 曾伯平 廖翔华 |
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| 作者单位： | 湘潭师范学院生物系!湘潭，411201，中山大学生命科学院!广州，510275 |
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| 基金项目： | 国家自然科学基金!39370123 |
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| 摘 要： | 报道草鱼鳃上台湾称带吸虫囊蚴内种群的空间格局参数。从1993年8月至1994年4月为期9个月的研究发现：囊蚴内种群每月的方差均较大，且方差／均值都大于1，扩散性指标也大于1，表明囊蚴在草鱼鳃上呈聚集分布；囊蚴内种群每月的平均密度、平均拥挤度、聚块性指标起不相同，表明囊蚴分布的聚集强度各不相同，由负二项参数K值反映出聚集的强度变化，K值越大聚集强度越小，K值越小，聚集强度越大。
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| 关 键 词： | 草鱼 鳃 台湾棘带吸虫 囊蚴内种群 空间格局参数 |
MONTHLY CHANGES OF SPATIAL PATTERN PARAMETER OF THE METACERCARIAL CYSTS INFRAPOPULATION OF CENTROCESTUS FORMOSANUS (NISHIGORI, 1924)IN TNE GILLS OF GRASS CARPS CTENOPHARYNGODON IDELLUS |
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| Zeng Beiping, Liao Xianghua.MONTHLY CHANGES OF SPATIAL PATTERN PARAMETER OF THE METACERCARIAL CYSTS INFRAPOPULATION OF CENTROCESTUS FORMOSANUS (NISHIGORI, 1924)IN TNE GILLS OF GRASS CARPS CTENOPHARYNGODON IDELLUS[J].Journal of Xiangtan Normal University(Social Science Edition),1998(6). |
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| Authors: | Zeng Beiping Liao Xianghua |
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| Institution: | Zeng Beiping; Liao Xianghua |
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| Abstract: | A nine - month(August 1993 - April 1994)Study on the spatioal pattern parameter of the metacer carial cysts infrapopulation of Centrocestus formosanus (Nishigor, 1924)in the gills of grass carps Ctenopharyngodon idellus The results indicated that the Variance of deed cysts infrapopulation in each month was mere,and the variance over mean, the spreading index was more than one,and it stated clearly that the distri bution of the metacerearial cysts in the gills of the greas carps was ovendispeed. But there was difference among the mean and mean crowding and collectiong index of the metacercarial cysts infrapopulation in each month , it indicated that the iniensity of overdispersed distribution was differend. The K value of negative binomic exponent measured the change of intensity of overdispersed distribution, the an the K value, the lowr the intensity,and vice versa, the less the K value, the higher the intensity |
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| Keywords: | Grass carp Gill Centrocestus formosanus Metacercarial cyst infrapopulation Spatial pattern parameter |
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