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亚洲鲤鱼在美国造成生态灾害的解决方案 被引量:1
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作者 丁可 《科技创业月刊》 2015年第4期113-115,共3页
20世纪美国为控制水生藻类植物大量滋生,引进了亚洲鲤鱼来消灭这些浮游生物从而促进美国农业的发展。但是亚洲鲤鱼冲破了防线,进入了美国主要水体,并开始大量繁殖,严重破坏了美国的水生态环境。政府也因此采取防治措施,从简单的人工捕... 20世纪美国为控制水生藻类植物大量滋生,引进了亚洲鲤鱼来消灭这些浮游生物从而促进美国农业的发展。但是亚洲鲤鱼冲破了防线,进入了美国主要水体,并开始大量繁殖,严重破坏了美国的水生态环境。政府也因此采取防治措施,从简单的人工捕捉到在主干河道设置电网,都没能完全清除这一外来物种。从食物链平衡的角度提出了更可行的解决方案:将中国传统制作鲤鱼的美食工艺引进美国。未来该做的是改变美国人的饮食习惯,以环境保护为前提,在美国推广和发展有关鲤鱼的食品,从而彻底改善亚洲鲤鱼的实际利用率。 展开更多
关键词 亚洲鲤鱼 生态灾害 食物链 鱼糕
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Comparative study on the gut microbiotas of four economically important Asian carp species 被引量:5
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作者 Xinghao Li Yuhe Yu +1 位作者 Chang Li Qingyun Yan 《Science China(Life Sciences)》 SCIE CAS CSCD 2018年第6期696-705,共10页
Gut microbiota of four economically important Asian carp species(silver carp, Hypophthalmichthys molitrix; bighead carp,Hypophthalmichthys nobilis; grass carp, Ctenopharyngodon idella; common carp, Cyprinus carpio) we... Gut microbiota of four economically important Asian carp species(silver carp, Hypophthalmichthys molitrix; bighead carp,Hypophthalmichthys nobilis; grass carp, Ctenopharyngodon idella; common carp, Cyprinus carpio) were compared using 16 S rRNA gene pyrosequencing. Analysis of more than 590,000 quality-filtered sequences obtained from the foregut, midgut and hindgut of these four carp species revealed high microbial diversity among the samples. The foregut samples of grass carp exhibited more than 1,600 operational taxonomy units(OTUs) and the highest alpha-diversity index, followed by the silver carp foregut and midgut. Proteobacteria, Firmicutes, Bacteroidetes and Fusobacteria were the predominant phyla regardless of fish species or gut type. Pairwise(weighted) UniFrac distance-based permutational multivariate analysis of variance with fish species as a factor produced significant association(P<0.01). The gut microbiotas of all four carp species harbored saccharolytic or proteolytic microbes, likely in response to the differences in their feeding habits. In addition, extensive variations were also observed even within the same fish species. Our results indicate that the gut microbiotas of Asian carp depend on the exact species, even when the different species were cohabiting in the same environment. This study provides some new insights into developing commercial fish feeds and improving existing aquaculture strategies. 展开更多
关键词 Asian carp gut microbiota feeding habit pyrosequencing Hypophthalmichthys molitrix Hypophthalmichthys nobilis Ctenopharyngodon idella Cyprinus carpio
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