For the younger age classes exploited by the fishery, exploitation rate in the mid-1970s had reached a level nearly seven times that experienced in the early 1950s.
The exploitation rate (E) was calculated as 0.63 indicating that longtail tuna was fully exploited in the study region.
Species persistence also depended on the exploitation rate outside MPAs.
The exploitation rate for population of longtail tuna (E = 0.63) in the present study was high.
Thus, the minimum exploitation rate for existing two-lane roads is defined to 40%.
The exploitation rate (E) for population of longtail tuna was calculated as E = 0.63.
Furthermore, for large intrinsic growth rate and small environmental variability, several strategies such as constant exploitation rate, pulse harvest, linear exploitation rate, and time-dependent harvest are quite effective and have comparable maximum sustainable yields.
Both of them are required to increase the infrastructure exploitation rate and avoid redundant infrastructure investments.
Then, we computed the exploitation rate required to reach the 1970 biomass from the 1900 value.
We further assumed a constant exploitation rate for the period 1900 1970.
