Postlarvae can be transported in plastic, fiberglass or canvass tanks of a suitable transport size (500 - 1000 liters) and provided with aeration. Temperature of water can be lowered by floating plastic bags with ice. Postlarvae at a density of 200 - 500/liter can be transported for 10 hours without heavy mortalities (Kungvankij et al., 1986).

Plastic bag

Very often, postlarvae are transported in polyethyelene bags provided with oxygen. The bag (60 cm x 40 cm) is first filled with 6 - 8 liters of fresh seawater and then packed with 3000 - 5000 postlarvae. The density may be reduced if the expected transport time is longer. After properly tightening the mouths of the bags, they are placed in styrofoam boxes or plastic buckets. Temperature is reduced to about 22 - 25^oC by crushed ice mixed with sawdust on the bottom, side and top of the styrofoam box. Under these conditions, postlarvae may be kept alive for more than 12 hours during transport (Kungvankij et al., 1986).