涠洲岛淡水鱼类多样性研究  

Freshwater Fish Diversity in Weizhou Island

作　　者：王欣[1] 高霆炜[1] 莫竹承[1] 陈骁 

机构地区：[1]广西科学院广西红树林研究中心,广西红树林保护与利用重点实验室,广西北海536000 [2]华南农业大学海洋学院,广东广州510642

出　　处：《广西科学》2017年第5期504-508,共5页Guangxi Sciences

基　　金：国家自然科学基金项目(41666008);广西自然基金项目(2016GXNSFDA380035)资助

摘　　要：【目的】全面了解涠洲岛淡水鱼类的生物多样性。【方法】选择了10个调查位点,利用电鱼器和流刺网对涠洲岛的淡水湿地进行4个季度的全面采样。【结果】共计采到鱼类标本1 722尾、鱼种10种。除罗非鱼Oreochromis mossam bicus和食蚊鱼Gam busia affinis两种外来物种外,其他的8种本土鱼类分别隶属于4目7科8属。种类和数量在不同区域和季节的差异明显。【结论】涠洲岛淡水鱼类存在种类较少,生物多样性较低,物种分布不均衡的特点。【Objective】Studying the freshwater fish biodiversity comprehensively in Weizhou Island.【Methods】10 survey sites were selected,and the freshwater wetlands of Weizhou Island were sampled in four quarters using electric fishing instrument and gill nets.【Results】A total of1 722 fish samples were collected,including 10 species.In addition to two invasive species,Oreochromis mossam bicus and Gam busia affinis,the other eight species of native fish belonged to 8 genus of 7 families of 4 orders.The variety of fish species and quantity were obvious in different seasons and areas.【Conclusion】The results demonstrated that the characteristics of freshwater fishes in Weizhou Island were fewer species,low diversity and unbalanced distribution.

关 键 词：涠洲岛 淡水鱼 生物多样性 

分 类 号：Q178.1[生物学—水生生物学]