The following are possible questions for the midterm exam.

  1. Scientific names of Walleye, Lake Trout, Brook Trout, Coho Salmon, Sockeye Salmon, Brown Trout, Bluegill, Largemouth Bass, Northern Pike, Arctic Charr, Black Crappie, Sea Lamprey
  2. Define all symbols including: a. N0, q, Z, F, M, A, S, u, v, m, n, Ct, ft, Nt, r a. M,n,m from mark-recapture
  3. Identify different types of fishing regulations (e.g., minimum size, hartvest slot, bag limit, gear restrictions, etc.)
  4. Describe a conceptual model of a stock (i.e., what things effect stock abundance and biomass)
  5. Write discrete and continuous population growth models and define terms.
  6. Density-dependence – define, example graphs, example explanations (e.g., depletion of resources lead to increase mortality, decrease in fecundity, etc.)
  7. Types of dynamics with different values of r in a discrete popn growth model.
  8. What is the catch equation, define all aspects
  9. Define q, q×ft, q×Nt, q×ft×Nt
  10. Define CPE, why would we use it
  11. Thoroughly discuss hyperstability and hyperdepletion?
  12. What does Maunder argue are flaws with CPUE data. Provide specific examples.
  13. Describe how the Leslie methods can be used to estimate population sizes.
  14. Calculate q and N0 from Leslie model regression results.
  15. Understand the geometrical representation of N0 on a Leslie model plot.
  16. What happens to q or N0 estimates if mortality/recruitment exist.
  17. What happens to Leslie model shape if catchability increases/decreases?
  18. Four main assumptions of Leslie model and how do we try to make sure they are met.
  19. Explain which assumption of depletion/removal methods is most commonly violated. Why?
  20. Summarize Rosenberger’s (2010) argument.
  21. Why use Chapman vs. Petersen?
  22. Understand capture histories; derive M, m, and n from capture history summaries.
  23. Perform a Chapman M/R calculation from raw values.
  24. Assumptions, and what violations do to population estimates.
  25. Identify types and key features of scales and otoliths.
  26. Explain the advantages and disadvantages of the various structures used to assign age to fish.
  27. Back-calculate previous length from measurements on a scale/otolith and the fish’s length at capture.
  28. Compute an age-length key from a two-way table.
  29. Identify proportions and number of fish that will be assigned a certain age from an age-length key according to the Isermann-Knight method.
  30. Describe how an age-length-key is used in the Isermann-Knight method.
  31. Describe why age-length-keys are used.
  32. Describe difference between cross-sectional and longitudinal catch curves
  33. Identify vectors of catch and ages from a matrix of catches-at-age for cross-sectional and longitudinal catch curves.
  34. Interpret Z and A
  35. Compute A from Z, Z from A
  36. Look at two plots and identify the one with the higher mortality rate
  37. How does shape of catch-curve change if assumptions are violated?
  38. Describe the “limbs” of a catch curve and explain why they appear the way they do.
  39. Describe ways in which F and M can be estimated.
  40. Compute the exploitation rate from mark-recapture results.
  41. Compute A from estimates of F and M.