15. Young rainbow trout were sampled along a river to study thepopulation and determine if recreational fishing or other factorsmight be affecting the size of the population.
A. In the first year of the study, researchers estimated thesize of the population. They performed the first stage of theiranalysis after breeding season had ended. The first week, 92 troutwere captured and marked. In a second round of capture one weeklater, 108 trout were captured; of these, 12 were marked. Estimatethe size of the population based on these data. Round your anwer tothe nearest whole number.
15B. In the second year of the study, researchers estimated theper capita population growth rate at -0.15. Based on this value,what is the size of the population in the second year of the study?Round your answer to the nearest whole number.
15C. Identify two factors that could have caused the populationto change in this way, and briefly explain how each factor couldresult in this change in 1-2 sentences (each).
