文章基本信息

标题：Longitudinal Patterns in Abundance of the Zebra Mussel (Dreissena polymorpha) in the Upper Mississippi River
本地全文：下载
作者：W. Gregory Cope ; Michelle R. Bartsch ; Ronald R. Hayden 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：1997
卷号：12
期号：2
页码：235-238
DOI：10.1080/02705060.1997.9663531
出版社：Taylor & Francis
摘要：We assessed the abundance of zebra mussels in the upper Mississippi River during 1995, four years after they were first found in the river. Samplers were deployed from May 30 to October 19, 1995, at 19 lock and dam facilities in the upper Mississippi River from Minneapolis, Minnesota, to Muscatine, Iowa. Zebra mussels were found at every lock and dam except the two sites farthest upstream (Minneapolis). Generally, densities of zebra mussels were greatest at sites 161 km and farther downstream of the Minneapolis area. The greatest mean mussel density was 11,432/m 2 at Fulton, Illinois.