Production, remediation, health management, and economic returns of pond-based multi-trophic aquaculture giant tiger shrimp (Penaeus monodon) in varying feeding rates

Gracilaria Ulva IMTA Production Feeding

Authors

  • Elgen M. Arriesgado College of Fisheries and Marine Sciences, Mindanao State University at Naawan, Naawan, Misamis Oriental 9023, Philippines.
  • Dan M. Arriesgado College of Fisheries and Marine Sciences, Mindanao State University at Naawan, Naawan, Misamis Oriental 9023, Philippines.
  • Victor R. Navarro College of Fisheries and Marine Sciences, Mindanao State University at Naawan, Naawan, Misamis Oriental 9023, Philippines.
  • Rustan C. Eballe Extension Division, Mindanao State University at Naawan, Naawan, Misamis Oriental 9023, Philippines.
  • Jomar F. Besoña
    jomar2298besona@gmail.com
    College of Fisheries and Marine Sciences, Mindanao State University at Naawan, Naawan, Misamis Oriental 9023, Philippines.
August 25, 2025

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An analysis and understanding of the proof of concept of Integrated Multi-Trophic Aquaculture (IMTA) technology, with varying feeding rates, in the context of disease and environmental management for better production of pond-based semi-intensive Penaeus monodon aquaculture, is evaluated in this study. The grow-out culture experiment was conducted for four months (120 days), utilizing eighteen units of 250 m2 ponds to hold the experimental trials. Six treatment combinations in triplicate were employed, comprising P. monodon as the main cultured species, with Chanos chanos and Oreochromis niloticus as the co-cultured species. The nutrient extractive species consisted of macroalgae Ulva fasciata and Gracilaria verrucosa, and mussel Perna viridis, at 2.5 and 5% feeding rates. The growth and survival of shrimp and finfish showed no significant difference among all treatments. Water quality levels among the treatments remained within optimal ranges. Shrimp reared within the shrimp-tilapia system and subjected to a 5% feeding rate manifested infection with White Spot Syndrome Virus (WSSV). Net revenue between the two feeding rates was consistently better (129.72-167.69 USD) at 2.5% feeding rates across all treatments. Overall, the shrimp-tilapia and IMTA systems demonstrated superior management and production performances compared to the shrimp polyculture system in terms of shrimp and fish production, plankton diversity, nutrient levels, and disease management. A 2.5% feeding rate is deemed appropriate for a shrimp-milkfish-Gracilaria-green mussel IMTA system.