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First record of the invasive orconectes rusticus (rusty crayfish) from the potomac River, Maryland

机译:来自马里兰州波托马克河的侵入性孔雀(生锈小龙虾)的第一记录

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摘要

We report the first record of invasive Orconectes rusticus (Rusty Crayfish) in the Potomac River, MD. Four specimens were collected in June 2010 in the Potomac River downstream from the confluence of Antietam Creek near Sharpsburg, MD. Subsequent surveys in the Potomac River mainstem and three other tributaries from Brunswick to Hancock, MD indicate that this invasive species is not yet widespread in the river. Further spread of Rusty Crayfish in the Potomac River may displace congeneric species including two natives, Orconectes obscurus (Allegheny Crayfish) and Orconectes limosus (Spinycheek Crayfish), and the non-native Orconectes virilis (Virile Crayfish) in Maryland, Virginia, and West Virginia.
机译:我们报告了在波托马克河,马里兰州的入侵Orconectes Rustus(生锈小龙虾)的第一记录。 2010年6月,在马里兰州夏普斯堡附近的安提塔姆河合流处的波托马克河下游采集了四个标本。随后对波托马克河干流以及从不伦瑞克到马里兰州汉考克的其他三个支流进行的调查显示,这种入侵物种尚未在河中广泛传播。锈蚀小龙虾在波托马克河中的进一步传播可能取代同类动物,包括马里兰州,维吉尼亚州和西弗吉尼亚州的两个本地人,即暗淡的小龙虾(Allegheny小龙虾)和淡水的小龙虾(Spinycheek小龙虾),以及非本地的小龙虾(Virile小龙虾)。 。

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