期刊
JOURNAL OF FRESHWATER ECOLOGY
卷 28, 期 3, 页码 439-444出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/02705060.2013.769127
关键词
Bellamya chinensis; freshwater snail; non-indigenous species; invasive species; annual fecundity
资金
- U. S. Geological Survey
- Nebraska Game and Parks Commission
- University of Nebraska-Lincoln
- United States Fish and Wildlife Service
- Wildlife Management Institute
- NSF IGERT [DGE-0903469]
The Chinese mystery snail (Bellamya chinensis) is a non-indigenous, invasive species in freshwater ecosystems of North America. We provide fecundity estimates for a population of these snails in a Nebraska reservoir. We dissected 70 snails, of which 29 were females. Nearly all female snails contained developing young, with an average of 25 young per female. Annual fecundity was estimated at between 27.2 and 33.3 young per female per year. Based on an estimated adult population and the calculated fecundity, the annual production for this reservoir was between 2.2 and 3.7 million young.
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