Information Tacklebox

MinnAqua


Featured Lesson

Lesson 2:8 - Fish In Winter

by Scott Moeller, Aquatic Education Specialist

November 2011


aeration system photo

 

Chapter 2 of the MinnAqua Fishing: Get in the Habitat! Leader’s Guide contains nine lessons, all pertaining to understanding Minnesota Fish. This chapter covers topics from how fish perceive their world, to how to identify Minnesota fish, to the history of fishing in Minnesota. Part of being a fish in Minnesota involves coping with winter and the changes that winter brings to our rivers and lakes. Lesson 2:8 – Fish in Winter explores how winter conditions can affect dissolved oxygen levels in water and what this means for the fish.

Download the Lesson This is a PDF file. You will need Adobe Acrobat Reader to download it.

Lesson Summary

In this lesson, students play a simulation game in which they play the roles of fish attempting to survive a Minnesota winter. Through the course of the game, students discover how ice and snow cover can affect dissolved oxygen levels in the water, and why oxygen is the most important limiting factor for fish in climates with cold winters. By the end of the lesson, students should be able to explain dissolved oxygen and the importance of dissolved oxygen in the water, as well as identify natural factors that affect dissolved oxygen levels for fish in winter.

Tips & Tricks

Fish Facts Symbol

Diving Deeper

MinnAqua Lesson Connections

Lesson 1:6 - From Frozen to FascinatingThis is a PDF file. You will need Adobe Acrobat Reader to download it. (30 pages | 3.8 MB) is another MinnAqua lesson that focuses on how other aquatic lifeforms deal with the rigors of winter. Lesson 2:3 - Fish FamiliesThis is a PDF file. You will need Adobe Acrobat Reader to download it. (23 pages | 3.4 MB) could serve as springboard to talking about the many different Minnesota fishes and their varying tolerances for winter oxygen depletion. Lesson 3:2 - The Function of Aquatic PlantsThis is a PDF file. You will need Adobe Acrobat Reader to download it. (24 pages | 3.5 MB) makes the connection with aquatic plants as one important way in which a lake obtains and maintains its dissolved oxygen. And, Lesson 5:7 - Making Ice Fishing Jiggle SticksThis is a PDF file. You will need Adobe Acrobat Reader to download it. (19 pages | 2.8 MB) and Lesson 6:2 - Ice Fishing and Winter SafetyThis is a PDF file. You will need Adobe Acrobat Reader to download it. (29 pages | 2.2 MB) both deal with the topic of going outside on a nearby frozen lake to “sample” some real live fish in winter.

Suggested Online Student Resources

Have your students access these online resources to engage in these concepts further.