!!----------------------------------------------------------------------
   !!  TOP 1.0 , LOCEAN-IPSL (2005) 
   !! $Header$ 
   !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt 
   !!----------------------------------------------------------------------
#if defined key_trc_pisces
      IF(lwp) WRITE(numout,*) ' use PISCES biological model '
      IF(lwp) WRITE(numout,*) ' '

   ! Check number of tracers
   ! -----------------------

      IF (jptra /= 24) THEN 
          IF (lwp) THEN 
              WRITE (numout,*) ' ===>>>> : w a r n i n g '
              WRITE (numout,*) ' =======   ============= '
              WRITE (numout,*)                               &
              &   ' STOP, change jptra to 24',               & 
              &   ' in parameter.passivetrc.pisces.h '  
          END IF 
          STOP 'TRC_CTL'
      END IF 
#endif