THE GROWTH OF ATLANTIC SALMON (SALMO-SALAR L) MYOSATELLITE CELLS IN CULTURE AT 2 DIFFERENT TEMPERATURES

Temperature is known to affect fish growth, and in Atlantic salmon the re is an influence on muscle cellularity. Primary muscle cell culture makes it possible to investigate direct effects of temperature on myog enic cells. Salmon myosatellite cells were cultured for the first time in this study. The cells were cultured at either 5 degrees C or 11 de grees C. Increased temperature led to an increase in differentiation r ate and especially hypertrophic growth (Q(10) = 4.0). No nuclear proli feration was evident in the satellite cell population isolated at eith er temperature. This may be due to the presence of different subpopula tions of myogenic cells at different developmental ages or the presenc e of indirect factors in vivo.