function [prdData, info] = predict_Ptychocheilus_grandis(par, data, auxData)
  
  % unpack par, data, auxData
  cPar = parscomp_st(par); vars_pull(par); 
  vars_pull(cPar);  vars_pull(data);  vars_pull(auxData);

  
%% compute temperature correction factors
  TC = tempcorr(temp.am, T_ref, T_A);  kT_M = k_M * TC; 

  % life cycle
  pars_tj = [g k l_T v_Hb v_Hj v_Hp];
  [tau_j, tau_p, tau_b, l_j, l_p, l_b, l_i, rho_j, rho_B, info] = get_tj(pars_tj, f);
  if info == 0
      prdData = []; return
  end
  
  % birth
  L_b = L_m * l_b;                  % cm, structural length 
  Ww_b = L_b^3 * (1 + f * w);       % g, wet weight at birth
  
  % puberty 
  tT_p = (tau_p - tau_b)/ kT_M;     % d, time since birth at puberty

  % ultimate
  L_i = L_m * l_i;                  % cm, ultimate structural length at f
  Lw_i = L_i/ del_M;                % cm, ultimate standard length at f
  Ww_i = L_i^3 * (1 + f * w);       % g, ultimate wet weight 
  
  % reproduction
  pars_R = [kap; kap_R; g; k_J; k_M; L_T; v; U_Hb; U_Hj; U_Hp];  % compose parameter vector
  RT_50 = TC * reprod_rate_j(50/0.85*del_M, f, pars_R); % #/d, reprod rate at SL 50 cm

  % life span
  pars_tm = [g; l_T; h_a/ k_M^2; s_G];  % compose parameter vector at T_ref
  t_m = get_tm_s(pars_tm, f, l_b);      % -, scaled mean life span at T_ref
  aT_m = t_m/ kT_M;                     % d, mean life span at T
  
  % pack to output
  prdData.tp = tT_p;
  prdData.am = aT_m;
  prdData.Li = Lw_i;
  prdData.Wwb = Ww_b;
  prdData.Wwi = Ww_i;
  prdData.R50 = RT_50;

  % univariate data
  % time - length 
  tvel = get_tj(pars_tj,f_tL,[],tL(:,1)*kT_M);
  ELw = L_m * tvel(:,4)/ del_M; % cm, total length

  
  % pack to output
  prdData.tL = ELw;

 
