In your first job as a biologist, you are tasked with estimating the population size of Arctic char in a lake in the Alaska. At the lake, you capture, tag and release 256 char. When you later revisit the lake, you capture 189 individuals, of which 12 have one of your tags. (4) a) How big do you estimate the population is? (0.5 pt) b) Which model did you use to do so? (0.5 pt). (5) A co-worker suggests that your study may have violated some of the assumptions of this model. Name two of the assumptions they might be concerned about, and describe how you might test these assumptions to address their concern.

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In your first job as a biologist, you are tasked with estimating the population size of Arctic char in a lake in Alaska. At the lake, you capture, tag and release 256 char. When you later revisit the lake, you capture 189 individuals, of which 12 have one of your tags. (4) a) How big do you estimate the population is? (0.5 pt) b) Which model did you use to do so? (0.5 pt). (5) A co-worker suggests that your study may have violated some of the assumptions of this model. Name two of the assumptions they might be concerned about, and describe how you might test these assumptions to address their concern.

 

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