Plaksina Mariana P, Dmitrieva Evgenija V, Dvoretsky Alexander G
Murmansk Marine Biological Institute of the Russian Academy of Sciences (MMBI RAS), 183010 Murmansk, Russia.
A.O. Kovalevsky Institute of Biology of the Southern Seas, 119991 Moscow, Russia.
Biology (Basel). 2023 Mar 21;12(3):478. doi: 10.3390/biology12030478.
In this paper, we analyzed the diversity and structure of helminth communities of 12 common fish species from the coastal zone of Crimea. A total of 53 helminth species were found. The total number of parasite species per host fish ranged from 3 to 18. Species richness at the infracommunity and component community levels were from 1.4-4.2 to 1.7-7, respectively. The Brillouin index for the infracommunites was 0.1-1, while the Shannon index for the component communities was 0.3-1.2. Component communities demonstrated a bi- or tri-modal distribution of the parasite prevalence and positive correlations between the prevalence and log-transformed abundance indices, thus following the "core-satellite" conception. Overall, the prevalence and abundance index of the dominant parasite in the component communities ranged from 18 to 80% and from 0.6 to 61.5 ind. per fish, respectively. The structure of the helminth component communities demonstrated good accordance with the nestedness mode where the rarest species occurred in the most diverse infracommunities, while the poorest infracommunities were composed of a few dominating species. More than two-thirds of the studied helminth species had an aggregated distribution indicating well-structured and developed communities. Our data provide a basis for further research and may be used for fish resource monitoring and management.
在本文中，我们分析了来自克里米亚沿海地区12种常见鱼类的蠕虫群落的多样性和结构。共发现53种蠕虫。每条宿主鱼的寄生虫种类总数在3至18种之间。在小群落和组成群落水平上的物种丰富度分别为1.4 - 4.2至1.7 - 7。小群落的布里渊指数为0.1 - 1，而组成群落的香农指数为0.3 - 1.2。组成群落显示出寄生虫患病率的双峰或三峰分布以及患病率与对数转换后的丰度指数之间的正相关，因此符合“核心 - 卫星”概念。总体而言，组成群落中优势寄生虫的患病率和丰度指数分别为18%至80%和每条鱼0.6至61.5个个体。蠕虫组成群落的结构与嵌套模式表现出良好的一致性，其中最稀有的物种出现在最多样化的小群落中，而最贫乏的小群落由少数优势物种组成。超过三分之二的研究蠕虫物种具有聚集分布，表明群落结构良好且发育完善。我们的数据为进一步研究提供了基础，可用于鱼类资源监测和管理。
