1. Fisheries Management
Scientists study fish stocks to determine estimates of the population count and the reproductive biology of the species
This information allows scientists to estimate the growth rate of the stock and determine the Maximum Sustainable Yield (MSY), maximum amount of fish that can be caught without impairing future populations.

2. Fisheries Management, cont’d
Scientists can determine the minimum size of fish to be caught to ensure juveniles are not being harvested
They can also determine times of the year when no fishing should be allowed to protect breeding seasons
Scientists make recommendations to the fisheries managers

3. Fisheries Management, cont’d
Fisheries managers set the Total Allowable Catch (TAC), the total tonnage of fish that the fleet can catch
They also set quotas, total tonnage of fish that a fisher can catch

4. Mismanagement Poor science leads to poor estimates
Managers disregard scientists recommendations
Fishers do not obey quotas
Other factors may deplete the population - foreign fishers, weather, pollution