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We used new tags for the population estimate a year later. If we assume the tags stay on well over the year, what changes the proportion of the old marked tags in the population and make the use of new tags more accurate? (Hint: look back at the assumptions made by the mark and recapture method).
a. random loss of tags might sufficiently large to change the proportion of tagged fish.
b. as tagged fish die and larvae that were not tagged reach maturity the proportion of tagged changes.
c. The fish might eat the tags.
d. we cannot assume tags would stay on longer than six months, so we need new tags for the fishfish.
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