Abstract
Currently, abrasion at the northern coastline of Central Java, Indonesia, is severe. One of the biggest abrasion area is in Kaliwlingi village (Brebes District), where 800 ha of brackish water ponds were submerged. Abrasion could wipe away or damage dykes on brackish water pond and the pond can no longer be used for aquaculture production. A 5 000 m2 of netting broken dyke of brackish water pond is used for semi–intensive cultivation of milkfish, tilapia, vanamae shrimp, green mussel and Gracilaria seaweed as an application of Integrated Multi Trophic Aquaculture (IMTA) concept. The aim of this study was to determine the aquaculture production in abraded dyke on brackish water pond by measuring the growth of milk fish, tilapia, vaname shrimp, green mussel and Gracilaria based on IMTA concept. The study was carried out from May to July 2015 at Kaliwlingi Village, Brebes district. The results showed Specific Growth Rate (SGR), i.e. milk fish 2.35 % d–1; tilapia 3.8 %·d–1 vanamae shrimp 3.75 % d–1; green mussel 2.8 % d–1 and Gracilaria 4.6 % d–1. Based on the result, the water quality is good and the availability of the natural food can support the growth of milkfish, tilapia, vanamae shrimp, green muscle and seaweed at broken dyke ponds with IMTA concept.
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