CONTENTS AND ORGAN DISTRIBUTION OF VITAMIN-B-6 IN ATLANTIC SALMON (SALMO-SALAR) AND TURBOT (PSETTA-MAXIMA) DURING THE REPRODUCTIVE-CYCLE

Vitamin B-6 in the muscle of Atlantic salmon (Salmo salar) and turbot (Psetta maxima) showed significant negative correlation with GSI, whil e it was positively correlated in the ovaries, in concentration as wel l as in total contents of organs. It is suggested that vitamin B-6 in muscle constitutes the main body stores, and is transferred to the ova ries of Atlantic salmon during the last stages of gonadal build up whe n the fish does not feed. In the continuously fed turbot, it is likely that gonadal vitamin B-6 originated from the diet as well. Vitamin B- 6 concentration in Atlantic salmon egg yolk was 60% higher than in the larvae body at hatching. Later, vitamin B-6 was taken up by the fry a t the onset of feeding concomitant with the disappearance of the yolk.