The early auricularia larvae (Fig. 1) were
stocked in 1-t FRP tanks, filled with 750 litres (L)
of filtered sea water. Stocking density was 200
larvae L-1. Larvae were fed with unicellular
algae, and the algal concentration in the rearing
tanks was maintained at 20,000–25,000 ml-1. The
quantity of phytoplankton was increased or decreased
depending on the quantity of food in the
stomach of the larvae. This was checked everyday
before feeding.