Butterworth and Glazer (2014) reported results from the application of a simple form of the dynamic Schaefer model to account for a large drop in sole CPUE over the period 2009-2013. The two hypotheses considered were (i) the drop in CPUE was a consequence of decreasing catchability and (ii) the drop in CPUE was a consequence of decreasing productivity. The model was applied again in 2016 (Butterworth et al., 2016) and 2017 (Glazer et al., 2017). Results from the assessment conducted in 2017 yielded more positive future projections for the most pessimistic scenario (a decrease in productivity, where effort remains at its current reduced level into the future). Recent biomasses were estimated to be higher and projected to decrease more slowl...
Values of the core vessels’ longline CPUE and aerial survey (AS) indices (two required inputs to the...
Earlier CPUE-based SCAA assessments of the 2+3KLMNO Greenland halibut resource by Butterworth and Ra...
The sole resource is modelled by a dynamic Schaefer production model which allows for a drop in the ...
This analysis updates that of Butterworth and Glazer (2014), which considered two hypotheses of decr...
Currently the Agulhas sole resource is managed by a Total Allowable Catch (TAC) which, for 2014, was...
The sole resource is modelled by a dynamic Schaefer production model which allows for a drop in the ...
A number of different production model approaches are considered for assessment of the Agulhas sole ...
All the nine Operating Models in the Reference Set are projected forward under the rules of OMP2014,...
The assessments for the two hypotheses (reduced catchability and a one-off additional mortality even...
FISHERIES/2016/SEP/SWG-DM/51 provides a full description of the current stock assessment model for t...
Specifications and projection results for the 2018 Operational Management Procedure used for settin...
FISHERIES/2016/SEP/SWG-DM/51 provided a full description of the current stock assessment model for t...
Projected TAC outputs for OMP-2014 at that time are compared to those that subsequently eventuated. ...
The RS Operating Models are projected forward under a range of constant future annual TACs from 130 ...
Glazer & Butterworth (2013) reports progress on refinements to the squid stock assessment model focu...
Values of the core vessels’ longline CPUE and aerial survey (AS) indices (two required inputs to the...
Earlier CPUE-based SCAA assessments of the 2+3KLMNO Greenland halibut resource by Butterworth and Ra...
The sole resource is modelled by a dynamic Schaefer production model which allows for a drop in the ...
This analysis updates that of Butterworth and Glazer (2014), which considered two hypotheses of decr...
Currently the Agulhas sole resource is managed by a Total Allowable Catch (TAC) which, for 2014, was...
The sole resource is modelled by a dynamic Schaefer production model which allows for a drop in the ...
A number of different production model approaches are considered for assessment of the Agulhas sole ...
All the nine Operating Models in the Reference Set are projected forward under the rules of OMP2014,...
The assessments for the two hypotheses (reduced catchability and a one-off additional mortality even...
FISHERIES/2016/SEP/SWG-DM/51 provides a full description of the current stock assessment model for t...
Specifications and projection results for the 2018 Operational Management Procedure used for settin...
FISHERIES/2016/SEP/SWG-DM/51 provided a full description of the current stock assessment model for t...
Projected TAC outputs for OMP-2014 at that time are compared to those that subsequently eventuated. ...
The RS Operating Models are projected forward under a range of constant future annual TACs from 130 ...
Glazer & Butterworth (2013) reports progress on refinements to the squid stock assessment model focu...
Values of the core vessels’ longline CPUE and aerial survey (AS) indices (two required inputs to the...
Earlier CPUE-based SCAA assessments of the 2+3KLMNO Greenland halibut resource by Butterworth and Ra...
The sole resource is modelled by a dynamic Schaefer production model which allows for a drop in the ...