Wijayanto, Dian and Kurohman, Faik and Nugroho, Ristiawan Agung and Nursanto, Didik Budi (2023) The effect of salinity on the growth, survival and profitability of TGGG hybrid grouper culture (♀ tiger grouper × ♂ giant grouper). Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society, 16 (1). pp. 39-47. ISSN 1844-9166

Text 2023.39-47.pdf Download (334kB)

Abstract

In Indonesia, the cultivation of ‘cantang’ hybrid grouper is being developed recently by cross-breeding the tiger grouper or Epinephelus fuscoguttatus (♀) and the giant grouper or Epinephelus lanceolatus (♂), known as TGGG hybrid grouper. Fish farmers are interested in the hybrid grouper cultivation for a better growth and resistance to disease. At the present, TGGG hybrid grouper cultivation has been carried out by fish farmers in coastal areas, using floating net cages and brackish water ponds. It is necessary to conduct more research on the cultivation of this grouper at low salinity which would allow fish farmers living away from the coast to cultivate it. This research examined the effect of salinity on growth, survival and profitability of TGGG hybrid grouper cultivation and it was conducted for 30 days using fish fry with an average weight of 3.16 g (±0.03 g). Three treatments and three replications were performed: treatment A using original seawater (salinity of 34 ppt), treatment B (salinity of 20 ppt) and treatment C (salinity of 10 ppt). The measured variables were biomass growth rate (WGR), specific growth rate (SGR), survival rate (SR), and cost benefit ratio (BCR). The results showed that salinity treatment did not significantly affect the WGR, SGR, SR and BCR. Treatment C showed the best WGR, SGR and BCR results. The optimal salinity for maximizing WGR, SGR and BCR was 5.0 ppt, 5.6 ppt and 10.1 ppt, re spectively. The TGGG hybrid grouper could be cultivated in water with low salinity, At a salinity 10 ppt, even better results were obtained compared tothe control group (34 ppt).

Actions (login required)

View Item