Abstract:
Floating cage fish culture has highly developed in Riam Kanan Reservoir, South Kalimantan
and gives positive contribution to the community social economic conditions. These culture activities
experienced production decline in 2017 in relation with the environmental conditions and unoptimal
management. Recently the production of floating cage fish culture has gradually been increasing even
though it has not still reached the previous maximum production. The production decline can influence
the feasibility of the floating cage fish culture business based upon different business scale due to
dissimilar expenditures and revenue at each level. This study used field survey method through
interviews with the fish farmers. Number of respondents was determined using disproportionate
stratified random sampling method as many as 56 people consisting of 36 respondents of small-scaled
business, 11 respondents of medium-scaled business, 9 respondents of large-scale business. The
primary data were analyzed using descriptive analysis and business feasibility analysis. The business
feasibility analysis components comprise fixed costs, variable costs, and revenue. Data collected are
one-year data containing 1 to 3 culture cycles. Results showed that the floating cage fish culture
business in Riam Kanan Resevoir was categorized as feasible at all levels of business scale with mean
R/C ratio of 1.12. The highest feasibility was recorded in large-scale business, followed by the medium
one, and the lowest in small-scaled business, 1.17, 1.12, and 1.11, respectively. Based on the cultured
fish species, the feasibility of Nile tilapia culture is higher than carp culture business at all business
scales, whereas carp culture is recommended for large and medium scale business only due to being
potentially harmful.