摘要
采用多样性指数和对应分析方法，对采自香港１４个地点的２２种海产贝类及其感染吸虫蚴虫期情况进行数量分析，研究海产贝类群体及其寄生吸虫蚴虫类群之间的生态关系。结果表明：在贝类—吸虫蚴虫期的统计调查中，最小样本量为贝类４０００，其中阳性贝类要３０个以上。由于自然选择的结果，使分布在大面积区域上的淡水及海产贝类群体及其感染吸虫蚴虫期的群落结构连续变化。随着贝类群落结构、数量组成复杂程度的增加，吸虫的多样性也增加，其结果将使群落的稳定性增加。
Analysing marine molluscs groups and their infected larval trematodes groups quantitatively and exploring ecological relationships between them from Hong Kong by using Shannon Weiner index and correspondence analysis method, the results are that the number of the smallest sample is 4000 molluscs including 30 positive in mulluscs trematoda investigation. Because of the natural selection, the fresh and marine mulluscs and its trematoda community structure change continuously in the large scale habitats. Following the mulluscs community structure and quantity increase, the trematoda diversity increases, the stability of community increases and inhibits the developing of dominant molluscs and the epidemic of dominant trematoda.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1997年第6期50-53,共4页
Journal of Tsinghua University(Science and Technology)
关键词
香港
吸虫
蚴虫期
多样性
海水贝
感染率
marine molluscs
larval trematodes
diversity
correspondence analysis
