Home Methods 1 | Photo Identification | Mark and Recapture Biopsy | Summer Feeding Areas, Wintering Grounds and Migration | Human Impact | Population Estimates
Activity 1: Questions about SPLASH | Activity 2: Interpreting Graphs | Activity 3: Mark and Recapture | Activity 4: Estimating Humpback Population Growth | Activity 5: Whale Tails: Photo ID | Activity Answers
Mark and Recapture 101 – Cascadia Research
In this activity, you will calculate the population size of a certain area using mark and recapture.

1. How many animals were “marked” in Survey 1? _______________________________
2. How many animals were “captured” in Survey 2? ______________________________
3. How many animals were “recaptured” in Survey 2? ____________________________
4. Using the formula above calculate the number of animals in the population: ___________