Posted by **Robin** on Sunday, July 15, 2012 at 6:10pm.

A trip to a different stream which had 30 fish marked at an earlier time produced 20 captured fish but none were recaptured with fish tags. Can you estimate the number of fish in this stream? Explain your answer.

- Biology -
**Anonymous**, Saturday, March 7, 2015 at 1:28am
210

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