Module 2: A Fish Tale

Middle School Level

Overview

Aquatic plants play an important role in maintaining water quality by providing valuable habitat and dissolved oxygen for fish and wildlife populations. Module 2 begins with a 15 minute audio-visual presentation featuring Becca the bass, who gives a colorful account of her experience as a fish in Florida’s freshwater environments, a place where the oxygen content changes constantly. Key concepts, such as photosynthesis, respiration and decomposition are defined and explained. Students will learn how invasive plants make life more difficult, especially for fish and aquatic organisms relying on dissolved oxygen for survival. Content from this presentation builds on the key concepts about native, non-native and invasive plants discussed in Module 1 — Silent Invaders. However, it may also be used as a stand-alone activity or a supplement to other curricula about photosynthesis and respiration.

Objectives

  • Identify the role of dissolved oxygen in aquatic ecosystems
  • Identify factors that influence dissolved oxygen concentrations in the water
  • Define photosynthesis, respiration, and decomposition
  • Identify the role invasive plants play in aquatic ecosystems
  • Identify positive actions we can take to help our aquatic ecosystems, including careers in aquatic plant management

Lesson Plans & Activities

Introductory Materials