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首页> 外文期刊>Belgian Journal of Zoology >Alien macrocrustaceans in freshwater ecosystemsin the eastern part of Flanders (Belgium)
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Alien macrocrustaceans in freshwater ecosystemsin the eastern part of Flanders (Belgium)

机译：法兰德斯东部（比利时）淡水生态系统中的外来巨甲壳动物

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摘要

Biological invasions of freshwater macroinvertebrates are gaining more and more interest because the ecological and economical impact of some of these species is high. Since crustacean taxa appear to be successful groups invading new areas, an inventory of the macrocrustaceans in Flanders was made. At least 22 freshwater macrocrustacean species have been reported from Flemish water bodies. A detailed study of six canals, one small artificial watercourse and one natural river in the eastern part of Flanders revealed that invaders such as Dikerogammarus villosus, Gammarus tigrinus and Chelicorophium curvispinum are already quite common. Especially D. villosus is currently rapidly expanding and has a serious impact on native and other exotic gammarid species. Based on observations in neighbouring countries, several additional species are expected to arrive in the near future. A fol-low-up of the alien species together with a monitoring scheme to detect new incoming species is valuable to estimate the size of the problem and to be able to closely follow their ecological and economical impact.
机译：淡水大型无脊椎动物的生物入侵越来越引起人们的兴趣，因为其中一些物种的生态和经济影响很高。由于甲壳类群似乎是入侵新地区的成功群体，因此对法兰德斯的大型甲壳动物进行了盘点。据报道，佛兰芒水体至少有22种淡水大甲壳动物。对佛兰德斯东部的六条运河，一条小型人工水道和一条天然河进行的详细研究表明，入侵者，如狄克罗格鲁姆斯绒毛犬，虎牙种伽马犬和弯形螯蟹已经很普遍了。尤其是D. villosus目前正在迅速扩张，并对本地和其他外来gammarid物种产生严重影响。根据邻国的观察，预计在不久的将来还会有另外几种物种到来。对这些外来物种进行跟踪调查，并采用监测方案来检测新来的物种，对于估计问题的规模并能够密切关注其生态和经济影响非常有价值。

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