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Significant progress has been obtained in the optimization of culture conditions
at this life stage. Sykes et al. (2006b) previously recommended to rear cuttlefish in
the hatching tank (Fig. 11.4a) but currently the use of hatching baskets (Fig. 11.4b),
preferably in black (Fig. 11.4c; Sykes et al. 2011), or raceway tanks (Fig. 11.4d) is
suggested. The use of low light intensities during this stage is also suggested (Sykes
et al. 2013c). These conditions of tank colour, light intensity and similar seawater
physical conditions with respect to embryonic development should be maintained
to promote appropriate welfare conditions, lower mortality rates and normal growth
and development.
11.5.2.2 Physicochemical Conditions
Seawater physicochemical conditions should resemble natural conditions as much as
possible, as long as this does not interfere either directly or indirectly with cuttlefish
Fig. 11.4  Different hatchling culture systems. a In the hatching tank. b In a white basket within a
1,500 L tank. c In a black basket within a 1,500 L tank. d In raceway tanks. (Photos by A Sykes)
A. V. Sykes et al.