Larval Growth and Survival of Penaeus Indicus (Decapoda: Penaeidae) On Live Feeds

Authors : Metin KUMLU

Pages : 233-246

View : 19 | Download : 5

Publication Date : 1998-12-01

Article Type : Research Paper

Abstract :This study was conducted to compare the suitability of three microalgal species insert ignore into journalissuearticles values(Tetraselmis chuii, Skeletonema costatum and Rhinomonas reticulata);, both individually and in combination, as food for Penaeus indicus during larval culture. To determine the best feeding density, each alga was fed to protozoea 1 insert ignore into journalissuearticles values(PZI); larvae from 10 to 80 cells mL -1 . The best algal-cell density, promoting the highest survival rate, greatest growth and fastest larval development, was obtained at 60-70 cells mL -1 with a combination of T. chuii and S. costatum. Low cell densities insert ignore into journalissuearticles values(10-20 cells mL -1 ); were not effective. The diatom S. costatum produced better larval survival and growth than those of the flagellates insert ignore into journalissuearticles values(P0.05);. These results demonstrate that P. indicus PZI larvae, at 28°C and 25ppt salinity, can be reared successfully on the mixed algal feed of T. chuii insert ignore into journalissuearticles values(25 cells mL -1 ); and S. castatum insert ignore into journalissuearticles values(35 cells mL -1 ); together with five Artemia nauplii mL -1 from MI onwards until metamorphosis in only 6-7 days.
Keywords : Penaeus indicus, shrimp, larvae, microalgae, live feed, culture