Diagnostic report for Operating Model

Objective Function Values

Overall

The total and component overall likelihood values.
TOTAL 1417.0600000
Catch 0.0000000
Equil_catch 0.0000000
Survey -68.7712000
Length_comp 1494.2900000
Recruitment -9.3842800
InitEQ_Regime 0.0000000
Forecast_Recruitment 0.0000000
Parm_priors 0.9224200
Parm_softbounds 0.0050239
Parm_devs 0.0000000
Crash_Pen 0.0000000

By fleet

The total and component likelihood values for each fleet.
Fleet Catch_like Init_equ_like Surv_like Length_like
ALL 0 0 -68.7712 1494.29000
1_PS_6385 0 0 0.0000 99.69300
2_PS_8690 0 0 0.0000 1.64633
3_PS_FSC_91 0 0 0.0000 277.00300
4_PS_FAD_91 0 0 77.0560 14.77940
5_PSBB_Ghana 0 0 0.0000 246.11200
6_PSBB_SouthDakar 0 0 0.0000 191.60300
7_PSBB_Dakar62-80 0 0 0.0000 39.38880
8_PSBB_Dakar81 0 0 0.0000 250.25600
9_BB_North25Lat 0 0 -18.3399 361.13000
10_LL 0 0 0.0000 12.68000
11_Acoustic_Buoy 0 0 -50.4313 0.00000

Model Fits

Catch

Fits (blue line) to the catch data (black dots) for all the fleets.

CPUE

Fits to the CPUE data. Each row corresponds with an index. The left-hand panels show the observed (dots) and model predicted (blue line) index in log-scale. The right-hand panels show the log deviations (the observation model is log-normal).

Length Compositions

Model predicted length composition (green line) and observed length composition (grey area) aggregated over all years for each fleet.

Length composition Pearson residuals showing residuals over time for each fleet. Closed bubbles are positive residuals (observed proportion is higher than expected) and open bubbles are negative residuals. The area of the bubble is proportional to the residual error.

Length composition Pearson residuals showing residuals over time for each fleet. Closed bubbles are positive residuals (observed proportion is higher than expected) and open bubbles are negative residuals. The area of the bubble is proportional to the residual error.

Conditional Age-At-Length

Stock-Recruitment

Time series of spawning biomass and recruitment estimated by the model (upper figures). The lower figures show the stock-recruitment relationship (Beverton-Holt) and the estimated log recruitment deviates.

Selectivity

The estimated selectivity-at-length for all the fleets in the terminal year of the assessment model. The x-axis represents the fish length (cm) and the y-axis is the selectivity value.

Stock Status

Reference Points

The biological reference points.
\(SSB_{MSY}\) \(F_{MSY}\) \(MSY\) \(SSB_{2020}/SSB_{MSY}\) \(F_{2020}/F_{MSY}\)
279820.00 0.47 200900.00 2.82 0.44

Kobe Plot

Kobe Plot