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 8: Impacting Streams and Rivers

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Fish 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

Fish Lake has been monitored from 2003 to 2011 at site 201. The average chlorophyll-a is 4.3 ppb.

The south bay of Fish Lake (Echo Bay) is some of the only shoreline in the Pelican group of lakes that is still undeveloped. It is not sandy, but is lined with reeds and cattails, which make excellent habitat for aquatic animals and fish.

Due to a new development project in this area, site 202 was monitored in 2007-2008 to get a good picture of baseline water quality. In the future, these results can be compared to the water quality during and after construction to see if there is any change.

2011 Results

Site Mean Chlorophyll-a (ppb) Min Chlorophyll-a (ppb) Max Chlorophyll-a (ppb)
201 3.6 2 5

Historical Results (2007-2008)

In 2007-2008, both lake sites were monitored for algal concentration (chlorophyll-a) and were essentially the same. Site 202, which is in Echo Bay, had the best water quality in the Pelican Group of Lakes in 2007.

Site Mean Chlorophyll-a (ppb) Min Chlorophyll-a (ppb) Max Chlorophyll-a (ppb)
201 5.5 4 9
202 5.1 3 8

Site 201

Chlorophyll a concentrations greater than 10 ug/L are perceived as a mild algae bloom, while concentrations greater than 20 ug/L are perceived as a nuisance. Chlorophyll a was evaluated in Fish Lake in 2003-2011 (see below). Chlorophyll a concentrations don't follow much of a pattern in Fish Lake. Chlorophyll a concentrations in Fish Lake remained below 10 ug/L during all years from 2003-2011, indicating clear water all summer.

Site 202

Chlorophyll-a results for Site 202 (Echo Bay) in 2007-2008.

to next page: Fish Lake total phosphorus results

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© Copyright 2007 Pelican Group of Lakes Improvement District