Analisis Kesejahteraan Keluarga Usaha Budidaya Ikan Keramba Di Danau Teluk Kota Jambi

This study took place in Teluk Lake Jambi City, with the aim of: (1) knowing the condition of the cage fish farming business based on the number and area of cages owned, the workforce used, business capital, as well as production results and income, (2) Analyzing the level of family welfare as measured by the income level of fish farmers. Cages, and (3) to analyze the effect of working capital, labor, cage area and production on the welfare of the family of caged fish farming business. This research is a survey research on a sample of 50 respondents of caged fish cultivators in Teluk Lake, Jambi City. Data analysis used multiple regression, and the hypothesis was tested by F test and t test. The results showed that most of the cage fish farmers used their own capital, employed around 1-2 people, the average cage area was 74.74 m2 per farmer, and the production that could be produced reached 2.08 tons per harvest. The income received by farmers has exceeded the Jambi City Minimum Wage. The results of hypothesis testing prove that capital, labor, cage area, and production affect the welfare of family cage fish farming in Teluk Lake, Jambi City. Given that it is important to develop cage fish cultivation in order to improve family welfare, a government policy is needed to provide capital assistance and foster cage fish farming businesses in Teluk Lake, Jambi City.

The Impact of Floods on Fish Cultivation Business in Floating Net Cages in Sungai Alang Village, Karang Intan District, Banjar Regency, South Kalimantan

The flood that hit Sungai Alang Village resulted in many floating net cages being lost in the flood, so many farmers lost their cages and caused losses for fish farmers. The aims of the study were to analyze: 1. The economic impact of floating net cage fish cultivators' losses. 2. The impact of social losses experienced by fish farmers. This study uses a survey method, the analysis used is business analysis and descriptive. The results of the analysis of the impact of flooding on fish cultivation in floating net cages in Sungai Alang village: 1. The economic impacts that occur are the loss of cages, loss of fish and damage to nets which result in farmers' losses. 2. The social impacts that occur are affecting the education of family members who continue to university cooperation from the community in dealing with flood disasters, changes in business due to flooding from fish farming in cages to fishing, gardening, cutting sap, raising chickens and selling vegetable.

Impact of cage culture in reservoir on the livelihood of fishers: A case study in Jharkhand, India

Cage fish farming in Indian reservoirs has the potential to enhance the reservoir production manifold. The present study estimated that around 14,000 cages have been installed in different reservoirs of the country which are producing around 16% of the current reservoir fish production. Around 7.5 lakh mandays of labour are being generated by cage fish farming in the country. An empirical study in the state of Jharkhand State found that the adoption of cage culture contributed around 30% to the livelihood of fishers. Cage culture not only increased monthly family income but also reduced the occupational migration. The fishermen households who adopted cage farming also accumulated some durable assets due to improvement in household income. However, high initial cost of cage culture operation, high feed cost and low market price of cultured pangas fish (Pangasianodon hypophthalmus) were some of the major constraints in adopting the technology as reported by the fishers. The study recommends that the state departments need to promote the use of low cost galvanised iron(GI) cages designed by the ICAR-Central Inland Fisheries Research Institute (ICAR-CIFRI) in reservoirs which may play a significant role in fulfilling the vision of blue revolution in the country.

Numerical Investigation on the Cage-to-Cage Wake Effect: A Case Study of a 4 × 2 Cage Array

Aquaculture has been the world’s fastest-growing food producing method and grown to become the second-largest export industry in Norway during the past 40 years. Usually, the high-value fish such as Atlantic Salmon (Salmo Salar) is raised in a multi-cage fish farm, where the flow interactions between fish cages exist. In this study, the interactions between fish cages are implemented into the numerical program, FhSim, to investigate its influences on the responses of a multi-cage fish farm. Tensions in anchor lines, drag force, and cultivation volume of each cage in a full-scale 4 × 2 multi-cage fish farms under different flow directions are analyzed numerically. The discrepancies of the responses based on three cases, i.e., (i) without any wake effects, (ii) with only cage-to-cage wake effect, and (iii) with all the wake effects, are compared and discussed. The results indicate that neglecting the wake effects will overestimate the total drag force of the eight cages up to 128% and underestimate the total cultivation volume of the eight cages as much as 42%. This study can provide suggestions on how to consider the wake effects during the design of the multiple-cage system.