#description: Estimate single M, no qSurvey
#author: MM
natM_type;          1Parm
natM_n_breakpoints; NULL  
natM_lorenzen;      NULL
natM_val;           c(NA,3)
par_name;           _steep,LnQ_base_2_
par_int;            c(NA,NA)
par_phase;          c(-4,-1) 
forecast_num;       0 
