Diagnostic report for Operating Model

Objective Function Values

Overall

The total and component overall likelihood values.

TOTAL	1388.3200000
Catch	0.0000000
Equil_catch	0.0000000
Survey	-69.9477000
Length_comp	1467.9400000
Recruitment	-9.6774300
InitEQ_Regime	0.0000000
Forecast_Recruitment	0.0000000
Parm_priors	0.0000000
Parm_softbounds	0.0054627
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	-69.9477	1467.94000
1_PS_6385	0	0	0.0000	99.91040
2_PS_8690	0	0	0.0000	1.56038
3_PS_FSC_91	0	0	0.0000	256.38400
4_PS_FAD_91	0	0	89.5943	12.76450
5_PSBB_Ghana	0	0	0.0000	236.91900
6_PSBB_SouthDakar	0	0	0.0000	185.83600
7_PSBB_Dakar62-80	0	0	0.0000	38.02080
8_PSBB_Dakar81	0	0	0.0000	237.40100
9_BB_North25Lat	0	0	-19.8207	387.05700
10_LL	0	0	0.0000	12.09120
11_Acoustic_Buoy	0	0	-50.1270	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.

\(SSB_{MSY}\)	\(F_{MSY}\)	\(MSY\)	\(SSB_{2020}/SSB_{MSY}\)	\(F_{2020}/F_{MSY}\)
288312.00	0.52	193059.00	2.94	0.41

Kobe Plot

Kobe Plot