This paper presents the results of two experiments in which we reared juvenile squid
at three different feeding levels and cuttlefish under two different feeding regimes for
approximately 35–42 days to determine if the constituents of the muscle tissue would
provide a record of feeding history. The aim of this research was to determine if we
could provide a measure of condition that is a record of feeding or nutritional history of
wild juveniles. Such a tool would aid our understanding of the processes affecting the
early life history and variability in growth in wild populations of cephalopods.