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Evaluating a Polyhouse Pond-based Aquaculture Production System for Cultivating Neolissochilus hexagonolepis (Chocolate Mahseer) in the Agro-climatic Conditions of Meghalaya, Northeast India: Polyhouse Pond Based Aquaculture System Evaluation

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Title Evaluating a Polyhouse Pond-based Aquaculture Production System for Cultivating Neolissochilus hexagonolepis (Chocolate Mahseer) in the Agro-climatic Conditions of Meghalaya, Northeast India: Polyhouse Pond Based Aquaculture System Evaluation
 
Creator Debnath, Chandan
S. Gojendro Singh
Prasanta Mahanta
Tasso Tayung
 
Subject Polyhouse pond aquaculture
system diversification
hill aquaculture
mahseer
fish growth and survival
 
Description This study evaluated a polyhouse pond aquaculture system (PPAS, 200m2) for cultivating chocolate mahseer (Neolissochilus hexagonolepis) under Meghalaya’s agro-climatic conditions. Over two years, chocolate mahseer growth, survival, and biomass production in PPAS were compared against a conventional open pond aquaculture system (OPAS, 200m2). PPAS demonstrated substantial advantages, with fish exhibiting 34.6% higher final weight (112.24 ± 7.10g vs 83.38 ± 9.91g), 34.8% greater daily weight gain (0.31 ± 0.02 g/day vs 0.23 ± 0.03 g/day), 7.8% higher specific growth rate (1.10 ± 0.04 %/day vs 1.02 ± 0.08 %/day), and 16.1% better survival rate (83.85 ± 5.02% vs 72.20 ± 6.85%) compared to OPAS. Consequently, PPAS total fish biomass (941.97 ± 91.20 kg/ha) was 56.5% greater than OPAS (601.84 ± 90.60 kg/ha). PPAS maintained an average 2.4°C higher water temperature, with a 3.2°C difference during winter. Despite higher initial investment  (₹ 85,000 vs ₹ 50,000) PPAS net profit (₹ 6,872) was substantially higher than OPAS (₹ 2,432) due to increased biomass. This innovative system mitigates environmental constraints, meriting further research for enhancing economic viability and long-term sustainability in adverse climatic regions.
 
Publisher Society of Fisheries Technologists (India)
 
Date 2024-10-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/FT/article/view/151128
10.56093/ft.v61i4.151128
 
Source Fishery Technology; Vol. 61 No. 4 (2024): Fishery Technology
2582-2632
0015-3001
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/FT/article/view/151128/56889
 
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