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

9.2 Little Pelican Lake


Fig 9.1 Little Pelican Lake depth

9.2.1 Water Clarity

Secchi disk measurements have been taken on Little Pelican since 1997 by a volunteer that lives on Little Pelican Lake. These measurements are taken each year between April and October. Little Pelican Lake has an average Secchi depth of 8.1 feet, and shows no significant trend. The trend is based on yearly averages from 1997-2006.

see secchi data graphs and trend analysis

9.2.2 Chlorophyll A

Water samples have been collected on Little Pelican Lake and analyzed for chlorophyll-a concentration from 2003-2007. Chlorophyll-a is a measurement of algal concentration. The average chlorophyll-a for Little Pelican is 8.5 ppb.

see Chlorophyll-a data graphs

9.2.3 Total Phosphorous

Water samples have been collected on Little Pelican Lake and analyzed for total phosphorus from 2003-2007. The average total phosphorus for Little Pelican is 23.3 ppb.

see Total Phosphorus data graphs

9.2.4 Trophic State Index

Average TSI ratings are based on TSI values for ChlA, TP, and Secchi disk. The Little Pelican Lake average TSI is 47, which is mesotrophic, but near the eutrophic range. Little Pelican Lake has the highest TSI of all the Pelican Group of Lakes due to the Pelican River discharging into it.

see TSI data graphs and explanation

next section: 9.3. Fish Lake

 
© Copyright 2007 Pelican Group of Lakes Improvement District