The study of growth and survival of Nereis diversicolor using wastewater nutrition derived Huso huso culture

This study was conducted to test the effect of feeding the polychaete worm Nereis diversicolor with wastewater derived Huso huso culture. At this study, worms with an initial mean weight of ۰.۰۵ g were fed for ۵۵ days with wastewater of densities ۲-۳, ۳-۴ and ۴-۵ kg m-۲ fish with ۰.۲-۰.۳ kg m-۲ worm. Nereis fed with fish feed was as a control. The results of the present study showed that the worms were able to grow using the fish waste water. The resulting biomass and average weight of harvested worms was significantly higher in the density ۳-۴ kg m-۲ fish treatment than in the other two densities treatments (ANOVA, p<۰.۰۵) and was lower than control. The worms from the trial NFF (Nereis fed with fish feed) showed a higher survival rate and biomass production than those from the trials in which were fed with waste water of different densities. These findings suggest that a suspension of H. huso waste water can be used in the rearing of juvenile N. diversicolor in an integrated culture system.

Keywords:

Nereis diversicolor , Huso huso , Wastewater