Prior Lake Spring Lake Watershed District
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Posts tagged "Curly-leaf"

Exploring our lakes, lake vegetation monitoring!

Posted by PLSLWD Staff - June 7, 2016 - News, Monitoring

As valued and well used as Prior Lake and Spring Lake are, there is still much mystery below the surface. Where are certain plant species growing, and why there? Have invasive species treatments been effective?  How does plant growth affect lake clarity? To address these questions, the Prior Lake-Spring Lake Watershed District (PLSLWD) is taking action.

In 2013, the PLSLWD started using a program called BioBase, an Automated Vegetation Mapping program, to determine how lake vegetation is changing over time. BioBase uses sonar to detect a lake’s depth, bottom hardness, and vegetation density. With this information, the PLSLWD can make many comparisons which will help influence management decisions within the district.

To begin with, baseline conditions must be documented. Data is collected for the BioBase program by staff and volunteers who take readings with the sonar equipment. This raw sonar data is then processed and maps are created to illustrate conditions. Once the baseline maps have been established, information can be compared across one season or many years. With enough data, the District can determine if there has been a significant permanent change in vegetation, or if a seasonal fluke in the weather is altering water quality. Nature does not follow strict lines, but it does have patterns we can track. Because the District can detect these patterns with the BioBase program, it can identify trouble spots caused by invasive forces or human interference.cl treatment View Full Article →

View Full Article Aquatic Vegetation, Aquatic Vegetation Monitoring, BioBase, Curly-leaf, Curly-leaf pondweed, Prior Lake Spring Lake Watershed District, Vegetation, water clarity

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Prior Lake – Spring Lake Watershed District

The District covers about 42 square miles in Scott County, MN. Water in the PLSLWD flows mainly from the southwest to the northeast through Spring, Upper Prior and Lower Prior Lakes, and then north through the Prior Lake Outlet Channel to the Minnesota River near Valley Fair amusement park.
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Prior Lake - Spring Lake Watershed District
4646 Dakota Street SE
Prior Lake, MN 55372

Phone: (952) 447-4166
Email: info@plslwd.org

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