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通过周年采集标本,对鄱阳湖区两个不同用途的卫星湖泊——青岚湖和军山湖淡水蚌类资源现状进行了比较研究。结果表明:青岚湖淡水蚌类有11属35种,优势种为圆顶珠蚌、洞穴丽蚌和中国尖嵴蚌;军山湖有9属16种,优势种为圆顶珠蚌和洞穴丽蚌,且两湖标本各属所含种数差异较大。青岚湖淡水蚌类密度和生物量明显大于军山湖,前者分别为0.57 ind/m2和15.94 g/m2,而后者分别为0.19 ind/m2和0.77 g/m2。两湖蛏蚌属密度和生物量均为零,但青岚湖其余各属生物量明显大于军山湖;并且除楔蚌属和扭蚌属外,青岚湖其余各属密度明显大于军山湖。两湖淡水蚌类生物量和密度之间都存在着极显著的正相关关系。两湖群落相似系数为41.67。作为天然湖泊的青岚湖比作为增殖湖泊的军山湖面积小很多,但青岚湖淡水蚌类资源比军山湖丰富,说明人工增殖对军山湖淡水蚌类资源有较大的影响。
By collecting samples on an annual basis, the current status of two different satellite lakes - Qinglan Lake and Ju Shan Lake freshwater mussels in Poyang Lake area was comparatively studied. The results showed that: There are 11 genera and 35 species in Qinglan Lake freshwater mussels, the dominant species are dome-shaped mussels, cave mussels and Chinese apex mussels; Junshan Lake has 9 genera and 16 species, the dominant species are dome-shaped mussels and cave mussels , And the species contained in the two lakes are quite different. The density and biomass of freshwater mussels in Qinglan Lake were significantly larger than those in Jun Mountain, with the former 0.57 ind / m2 and 15.94 g / m2, while the latter 0.19 ind / m2 and 0.77 g / m2, respectively. The density and biomass of the mussels in both lakes are all zero, but the biomass of the other genera of Qinglan lakes is obviously larger than that of Jun shanghu. Besides the density of the other mussels in Qinglan lakes, . There was a significant positive correlation between biomass and density of freshwater mussels in both lakes. The similarity coefficient of two lakes was 41.67. Qinglan Lake, as a natural lake, is much smaller than the Junshan Lake, which is a major lake for reproduction. However, the freshwater mussels in Qinglan Lake are more abundant than the Junshan Lake, indicating that artificial reproduction has a greater impact on the freshwater mussels resources in Junshan Lake.