About 80% of marine invertebrates have a planktonic larval stage during their life histories (Thorson, 1964). The most diverse types of larval in marine invertebrates are found within the Crustacea. The most basic type of larval development of crustaceans involves several stages: nauplius, zoea, postlarva (Sastry, 1983), followed by the juvenile and adult stage. Decapod crustaceans typically possess a planktonic larval stage in the life cycle. The duration of this stage may vary greatly among species. For example, the larval stage of penaeid shrimps and brachyuran crabs lasts for several weeks (Dall et al., 1990), but it can last for as long as 6-11 months in panulirid and scyllarid lobsters (Johnson, 1971).