Gracilaria sp. Waste, Lactobacillus sp. and Chlorella sp. Integration on Intensive Aquaculture with Aquaponic System

Abstract

The aim of the research is to explore the utilization of Gracilaria sp. waste, Lactobacillus sp. and Chlorella sp. in intensive aquaculture with aquaponic system. Interestingly, fermented Gracilaria sp. waste liquid as much as 0.5% gives the best watercress (Ipomoea aquatica) growth (leaf length, leaf width, stem length, root length, and number of leaves) and nile fish (Oreochromis niloticus) growth (specific growth rate and absolute growth in the body length).

Keywords: Gracilaria sp. waste, Lactobacillus sp., Chlorella sp., aquaponic