Abstract: Studies on the effect of temperature for induced spawning, egg hatching and larval culturing onthe embryonic and larval growth and development of Penaeus monodon and Eriocheir sinensis showed that in the range of temperature tested (crab, 17～21℃; shrimp, 26～30℃) , the embryonic and larval growth rates of shrimp and crab were increased, but their larval size and theirlarval ecdysis and survival rates were decreased wtih raising bnding temperature. The resultsalso showed that the effect of larval brcoding temperature depended on the induced spawningtemperature, the methed of raising tcmperature, and the temperature for egg hatching and larvae culturing. The effect of brooding temperature and other environmental factorSon larval quality was evaluated in particular, and the approaches to further study the metaboism of energyand matter at embryonic and larval developmental stages of shrimp and crab were advanced.

Key words: Brooding temperature, Penaeus monodon, Eriocheir sinensis, Larval quality, Quercus variabilis, shaded/sunlit leaf, photosynthetic parameter, Robinia pseudoacacia, photosynthetic-CO₂ response