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
Humpback Whale Population Projections
Assume that the North Pacific humpback whale population was 20,000 animals in 2006.
Also, assume that the population grows at a rate of 5% / year. What will the population be in 5 years?
2006: 20,000 (SPLASH estimate)
2007: 20,000 x .05 = 1,000 ; 20,000 + 1,000 = 21,000
2008: 21,000 x .05 = ________; _______ + 21,000 = ____________
2009 : __________________________________________________
2010 __________________________________________________
2011 __________________________________________________
Photo: Gary Bolles