5.4 Recommended Uncertainty Handling at This Point in Model Development
99
Table 5.4 Summary of assessments or calculations used as basis for classification in the water
column. Recovery parameters
Main parameter
A: Strength of knowledge (function where it is
used)
B: Belief that the value may deviate from the
average assumption (natural variation of
parameter)
C: Sensitivity of function to parameter (sensitivity
index)
CritDens (%)
A Moderate/weak
B High
C High (threshold level between two methods with
different conservatism)
Comments/recommendations
Higher values are more conservative. Expresses the
threshold for when a direct relationship is modelled
between larval mortality and recruitment reduction
CritOilMort (%)
A Moderate/weak
B High
C High (threshold level between two methods with
different conservatism)
Comments/recommendations
Lower values are more conservative. Expresses the
threshold mortality of eggs and larvae for which a
proportionate relationship is calculated between
killed larvae and reduced recruitment
Annual natural mortality of immatures (%) A Moderate/weak
B Moderate/high
C Not tested
Comments/recommendations
Annual natural mortality of matures (%)
A Moderate/weak
B Moderate/high
C Not tested
Comments/recommendations
Age at recruitment (year)
A Moderate/weak
B Low/moderate
C Not tested
Comments/recommendations
Age at first spawning (year)
A Moderate/weak
B Low
C Not tested
Comments/recommendations
(continued)