Rangers tagged and released 255 salmon into a Maine lake. A month later, fishermen on the lake were surveyed. They reported catching 60 salmon, 20 of which had tags. Using this sample, estimate the salmon population in the lake.

Question

Heidi Bishop

Biology

18 December, 17:55

Rangers tagged and released 255 salmon into a Maine lake. A month later, fishermen on the lake were surveyed. They reported catching 60 salmon, 20 of which had tags. Using this sample, estimate the salmon population in the lake.

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Dulce Flowers · Answer 1

773 salmons

Explanation:

Total number of salmon caught by fishermen = 60

Total number of tagged salmon caught = 20

Percentage of tagged salmon in the sample = 20/60 x 100 = 33.33%

255 tagged salmon constitutes 33.33% of the entire salmon population

If the entire population is represented by X

255 = 33/100 of X

X = 255 x 100/33

X = 772.7

Hence, the salmon population in the lake is approximately 773.