Seasonal Dynamics and Spatial Distribution of the Dactylogyrus Species on the Gills of Grass Carp (Ctenopharyngodon idellus) from a Fish Pond in Wuhan, China
Seasonal Dynamics and Spatial Distribution of the Dactylogyrus Species on the Gills of Grass Carp (Ctenopharyngodon idellus) from a Fish Pond in Wuhan, China
复制标题
DOI：
10.1645/15-931
复制
发表时间：
2016-10
影响因子：
1.3
通讯作者：
Bao-Juan Yang;H. Zou;Shun Zhou;S. Wu;Gui‐tang Wang;Wen X Li
中科院分区：
文献类型：
--
作者：
Bao-Juan Yang;H. Zou;Shun Zhou;S. Wu;Gui‐tang Wang;Wen X Li
摘要2012年9月至2014年12月，对武汉市某鱼塘草鱼鳃上单殖吸虫的空间分布和季节变化进行了调查。在此期间，发现了2种指环虫，即，片层指环虫和栉咽指环虫。片层指环虫在整个调查期间都存在，而片层指环虫D.在2014年1月之后，当另一批草鱼鱼种被添加到池塘时，才检测到草鱼。2种指环虫的流行情况全年的平均强度相对较高，但两种鸟类的平均强度存在明显的季节变化（P0.05）。另外，在低、中、高强度组间，两种鱼类在每个鳃弓上的平均强度百分比差异不显著（P > 0.05）。这些结果表明，不饱和鳃生态位和种间竞争的情况下，2指环虫物种。
Abstract Spatial distribution and seasonal variation in mean intensity and prevalence of monogeneans on the gills of grass carp (Ctenopharyngodon idellus) were investigated from September 2012 to December 2014 in a fish pond in Wuhan, China. During this period, 2 species of Dactylogyrus were found, i.e., Dactylogyrus lamellatus and Dactylogyrus ctenopharyngodonis. Dactylogyrus lamellatus was present during the entire duration of the investigation, whereas D. ctenopharyngodonis was only detected after January 2014, when another batch of grass carp fingerlings was added to the pond. Prevalence of the 2 Dactylogyrus spp. was relatively high throughout the year, but significant seasonal changes were detected in the mean intensity of the 2 species (P 0.05). In addition, there were no significant differences in the percentage of mean intensity of the 2 species on each gill arch among low-, medium-, and high-intensity groups (P > 0.05). These results suggest unsaturated gill niches and the absence of interspecific competition between the 2 Dactylogyrus species.