A simulation study was conducted to evaluate the reliability of estimates of maximum sustainable yield (MSY), the biomass at which the MSY is obtained (Bmsy), the exploitation rate required to achieve the MSY (Emsy), and the intrinsic population growth rate (r), from a logistic production model fitted to catch and catch-rate data generated from an age-structured model.
The physical map of the MSY indicates outstanding coverage of the papaya genome by this BAC library, considering that the centromere of the Y chromosome is likely within the MSY [ 33].
The MSY is a regulatory concept that translates laws of population dynamics into a management tool.
On the other hand, maintaining exploitation levels below the MSY creates an efficient use of the resources' regenerative capacities, thus in principle enabling exploitation to continue indefinitely.
That resultant surplus production can be harvested sustainably, provided that the harvest is consistently maintained under the MSY, which is specific to each population (rather than to the species as a whole).
When the team members compared the MSY sequences, they got a surprise.
Despite its disregard to cost, the MSY remains the main criteria for managing populations and avoiding over exploitation.
The plan is to start adopting the MSY approach to fisheries management in 2015, and from 2014 discards are to be phased out.
The MSY estimates were still reasonably accurate, but less reliable when h was low (<0.45) in the presence of process and observation error.
About 87% of the MSY estimates were between 50% and 150% of the "true" MSY values when the coefficient of variation for the process and observation errors were both 30% (30 30% case), while 60% of the MSY estimates were between 50% and 150% of the "true" MSY values for the 80 30% case.
where is the population inherent growth rate and is the population carrying capacity at time In our analysis, we focus on the maximum sustainable yield commonly known as the MSY [20].
