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标题：Factors Limiting the Growth of Stuckenia pectinata (Sago Pondweed) in Heron Lake, Minnesota
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作者：Morgan L. Case ; John D. Madsen
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2004
卷号：19
期号：1
页码：17-23
DOI：10.1080/02705060.2004.9664507
出版社：Taylor & Francis
摘要：Point intercept surveys were conducted in Heron Lake, Minnesota to identify environmental factors limiting the growth of Stuckenia pectinata (L.) B rner (sago pondweed), formerly Potamogeton pectinatus L. Stuckenia pectinata was found at 50.2% of the sample sites. Mean tuber weight was 73 mg; tuber density was 31.8 N m -2 (2.32 g m -2 ). The distribution of S. pectinata was limited by water depth and wave action close to shore and light attenuation in deeper water. There was a negative correlation (r= -0.88) between the amount of sand in the sediment and the presence of S. pectinata shoots. There was a positive correlation (r= 0.89) between the amount of silt in the sediment and the presence of S. pectinata shoots.