Normal distribution for generating a day (µ_{y}) in a survey year when maximum moulting occurs 

mean 
150 
coefficient of variation 
0.05 
Lognormal distribution for generating number of moulting crabs (Ф_{y}) at day µ_{y}


Median 
1000 
coefficient of variation 
0.53 
Twopiece normal distribution for generating expected number () of moulting crabs for a given day of a survey year 

the maximum and common value 

standard deviation for the left half 
60 
standard deviation for the right half 
70 
Lognormal distribution for generating actual number (N_{y, d}) of moulting crabs for a given day of a survey year 

Median 

coefficient of variation 
0.31 
Sustaining probability for a softshell crab 
0.95 
Catchability coefficient 
0.0002 
Lognormal distribution for generating random variate for catch per unit effort 

Median 
1 
coefficient of variation 
0.59 