NOTE: This activity is an adaptation of the lesson “Fishing for the Future” (The Curriculum Guide ©2002), currently available on the PBS website: Fishing for the Future (PDF). Video: Activity 5: Sustainable Fishing (YouTube) https://youtu.be/5K9QIrDZMww We provide the materials for an adaptation of this activity in our 4-H STEM toolkits, substituting two colors of beads