choose the CORRECT answer choice for the following questions and explain why: According to Collie et al. 2016, age-structured models used to assess fish stocks require the collection of age data from fish which are "laborious and expensive" to obtain. Thus, they aren't the Question 4 2 pts Question 5 2 pts best type of data to use when informing the demographic parameters for certain ecosystem based modeling approaches. What is a similar, but easier type of data to collect, that works better than age data for informing ecosystem models? Fish sex information Fish size information Number of juvenile fish in a stock Number of adult fish in a stock