The effects of different diets on the survival and development of copepod nauplii

Under laboratory conditions,the influences of different diets on the survival and development of Acartia bifilosa and Calanus sinicus were investigated.The results showed that there is a positive relation between the survival of copepod nauplii and its development rate.Among all single species diets, the smaller particle size species(N.oculata and P.tricornutum) could support higher survival at first feeding duration,so did larger particle size species(P.subordiformis and S.costatum) during later development stage.In the same development duration,the ideal particle size scale of micro-copepod A.bifilosa was different from meso-copepod C.sinicus.The negative effects of single diet could be diminished efficiently by ingesting mixed food.