Lake Management Plan

go to PGOLID main pageChapter 1 includes an introduction and abstract
Chapter 2 includes the goals of PGOLID
Chapter 3 history covers geological formation to current district projects
Chapter 4 covers watershed characteristics of most of northwest Minnesota
Chapter 5 covers the main watershed around the Pelican Lakes
Chapter 6 covers the minor watersheds that surround Pelican Lake
Chapter 7 describes the types of data collected and why
Chapter 8 reports the data and water quality of inlets and outlets to Pelican Lake
Chapter 9 reports the water quality data for the Pelican Lakes

Chapter 10
Chapter 11 Safety and Buoys

 

Questions?
PGOLID Water Resource Coordinator
218-846-1465, email

Chapter 9: Lake Water Quality

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Little Pelican Lake Chlorophyll-a

Chlorophyll-a is the pigment in plants and algae that makes them green. Chlorophyll-a is a measurement of algal concentration in the water. more information on chlorophyll-a

Little Pelican chlorophyll-a at site 202 has been monitored from 2003 to 2007, and has an average of 8.5 ppb. This algae concentration is higher than in Big Pelican Lake (5.2 ppb).

2007 Results

In 2007, the chlorophyll-a concentration in Little Pelican Lake averaged 11.6 ppb. These results are higher than the historical average (8.5 ppb).

Table 2. 2007 Chlorophyll-a results.

Site Mean Chlorophyll-a (ppb) Min Chlorophyll-a (ppb) Max Chlorophyll-a (ppb)
202 11.6 4 25

There was a spike in algal concentration in the August 24th sample, but this is natural. Algal concentrations are generally highest in August when the conditions are ideal for algae growth (bright sun, hot, calm weather).

Chlorophyll-a historical results: 2003-2007:

to next page: Little Pelican Total Phosphorus results

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© Copyright 2007 Pelican Group of Lakes Improvement District