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<p>In this study, a solar-powered fish vending cart (FVC) was developed to enable efficient doorstep delivery of live fish through a modified tricycle integrated with a solar panel, battery, aeration system, and live fish holding unit. In this system, to optimize stocking density over a 2.5-h transport period, an experiment was conducted on <i>Labeo rohita</i> at 15, 20, and 25&#xa0;kg load levels. In first hour, no mortality was observed in the FVC across all three densities, whereas control tanks showed early mortality (5.67–33.6%). After 2.5&#xa0;h, mortality in the FVC remained substantially low (7.3–18.5%) compared to control tanks (21.33–91.6%), which indicates superior survival performance even at higher stocking densities. Notably, water quality also remained more stable in the FVC were pH showed minimal change, and dissolved oxygen depletion was lower compared to control tanks, where pH declined progressively and oxygen depletion was more severe (71.5–97%), especially at higher stocking densities. Collectively, these findings demonstrate that the integration of continuous aeration with solar energy support in the FVC significantly enhances fish survival and stabilizes the rearing environment during short-term transport.</p>

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Prototype of a Solar-Powered Fish Vending Cart and its Feasibility for Marketing of Live Fish

  • 期刊论文

  • 发表日期：

    2026年5月12日

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  • Prem K. Sundaram,
  • Kamal Sarma,
  • Bikash Sarkar,
  • Surendra Kumar Ahirwal,
  • Dev Narayan,
  • Manoj K. Sinha,
  • Ashutosh Upadhyaya,
  • Tarkeshwar Kumar,
  • B. P. Bhatt,
  • Anup Das

摘要

In this study, a solar-powered fish vending cart (FVC) was developed to enable efficient doorstep delivery of live fish through a modified tricycle integrated with a solar panel, battery, aeration system, and live fish holding unit. In this system, to optimize stocking density over a 2.5-h transport period, an experiment was conducted on Labeo rohita at 15, 20, and 25 kg load levels. In first hour, no mortality was observed in the FVC across all three densities, whereas control tanks showed early mortality (5.67–33.6%). After 2.5 h, mortality in the FVC remained substantially low (7.3–18.5%) compared to control tanks (21.33–91.6%), which indicates superior survival performance even at higher stocking densities. Notably, water quality also remained more stable in the FVC were pH showed minimal change, and dissolved oxygen depletion was lower compared to control tanks, where pH declined progressively and oxygen depletion was more severe (71.5–97%), especially at higher stocking densities. Collectively, these findings demonstrate that the integration of continuous aeration with solar energy support in the FVC significantly enhances fish survival and stabilizes the rearing environment during short-term transport.