Aquatic oligochaete fauna (Annelida, Clitellata) in Lake Tonle Sap and adjacent waters in Cambodia
Aquatic oligochaete fauna (Annelida, Clitellata) in Lake Tonle Sap and adjacent waters in Cambodia
复制标题
柬埔寨洞里萨湖及邻近水域的水生寡毛动物群（Annelida、Clitellata）
DOI：
10.1007/s10201-018-0543-5
复制
发表时间：
2018
期刊：
影响因子：
1.6
通讯作者：
Ohtaka Akifumi
中科院分区：
文献类型：
--
作者：
Kimura;M.;Hang;P. and Tsukawaki;S.;Ohtaka Akifumi
2000年至2005年进行的调查中，在柬埔寨湄公河流域的洞里萨湖发现了属于Enchytraeidae和Naididae科的39个水生寡毛类群。以naidines和pristinines（29个类群）为主，主要包括分布广泛的物种以及南亚和东南亚物种。在所研究的四个区域中，湖泊沿岸地区（洪水季节期间被淹没的森林和水生植被发育）的物种数量最多。洞里萨湖沿岸的水下植被蕴藏着丰富的附生寡毛类动物，特别是Stylaria fossularis。与丰富的 naidine 和原始动物群相比，无论其栖息地的植被如何，水管动物和 ryhacodrilines 在湖内和周围都很稀少。几种Aulodrilus和Branchiura sowerbyi是整个湖岸无植被区域底栖寡毛动物组合的主要代表。值得注意的是，分布广泛的水管虫Tubifex tubefex和Limnodrilus hoffmeisteri在所有调查地点均未发现。
In surveys conducted during 2000–2005, 39 taxa of aquatic oligochaetes belonging to the families Enchytraeidae and Naididae were found in Lake Tonle Sap in the Mekong River Basin, Cambodia. Dominated by naidines and pristinines (29 taxa), they mainly comprised widely distributed species as well as South Asian and Southeast Asian species. Among the four areas studied, the littoral regions of the lake—where inundated forests and aquatic vegetation developed during the flooded seasons—presented the highest number of species. Submerged vegetation in the littoral Lake Tonle Sap harbored abundant epiphytic oligochaetes, especiallyStylaria fossularis. In contrast to the rich abundance of naidine and pristinine fauna, tubificines and ryhacodrilines were scarce in and around the lake, irrespective of the vegetation in their habitats. SeveralAulodrilusspecies andBranchiura sowerbyiwere the main representatives of the benthic oligochaete assemblages throughout the offshore zone of the lake without vegetation. It is noteworthy that the widely distributed tubificinesTubifex tubifexandLimnodrilus hoffmeisteriwere not found in any surveyed locality.