Karakteristik Habitat Ikan Nila (Oreochromis niloticus) Pasca Restocking di Situ Gintung, Tangerang Selatan, Banten

Abstrak

The enrichment (restocking) program for tilapia (Oreochromis niloticus) in Situ Gintung aims to increase the economic potential of the waters of Situ Gintung. This program needs to be carried out with strict monitoring, so that Situ Gintung can become a habitat for fish farming sustainably.The purpose of this study was to determine the characteristics of the tilapia habitat after restocking in Situ Gintung. The study used a survey method. The biotic parameters observed were the species of fish and aquatic plants. The environmental data observed were water temperature, Dissolved Oxygen (DO), acidity (pH), Total Dissolved Solid (TDS), light intensity and water salinity. The relationship between the density of aquatic plant vegetation and the density of tilapia was analyzed using a linear regression. Environmental factors were analyzed using Principal Component Analysis (PCA). 11 species of fish from 9 families were found with low species diversity and dominated by the cere fish (Gambusia affinis) and tilapia. There are 5 types of aquatic plants in the tilapia habitat in Situ Gintung. Factors that influence the selection of tilapia habitat are pH, light intensity, TDS, DO and temperature. The conclusion of this study is that Situ Gintung has low fish species diversity.The dominant vegetation in the tilapia habitat is water spinach (I.aquatica). The physical characteristics of the tilapia habitat in Situ Gintung are DO= 7.67-7.93 mg/L, water temperature= 29.3-30.74℃, pH= 7.47-8.38, TDS= 74.4-108.4cmg/L, and light intensity= 3.7-4.8 lux.

Kata kunci

• Characteristic habitat
• O.niloticus
• Restocking
• Situ Gintung