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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (26): 147-153.doi: 10.11924/j.issn.1000-6850.casb2022-0733

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Engineering Design and Performance Evaluation of Fish- Strawberry Aquaponics System

GU Chuanchuan(), XU Yanfei, GAO Xiating, ZHANG Haigeng   

  1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences/Key Laboratory of Fishery Equipment and Engineering Technology/Key Laboratory of aquaculture facilities engineering, Ministry of agriculture and rural affairs, Shanghgai 200092
  • Received:2022-08-25 Revised:2022-12-13 Online:2023-09-11 Published:2023-09-11

Abstract:

In order to investigate the purification capacity of plants for aquaculture wastewater, the growth of fish and the application potential value of the Scortum barcoo and Fragaria orientalis aquaponics system, a Scortum barcoo and Fragaria orientalis aquaponics system was constructed by integrating recirculating aquaculture system (RAS) and floating raft device, and key parameters was established according to the material balance principle. The experiment lasted for 69 days, and the results showed that the growth of fish was good, and the survival rate was 100% with the highest culture density of 13.01±1.36 kg/m3; and strawberry grew well with a total yield of 428.51±0.02 g. The average daily power consumption of the system was 12.49 kW·h. The results of water quality showed that ammonia nitrogen concentration was maintained at an average of 0.56±0.01 mg/L, nitrite nitrogen at an average of 0.175±0.019 mg/L, nitrate nitrogen at an average of 31.13±1.75 mg/L, and dissolved oxygen at an average of 7.38±0.61 mg/L. The average pH was pH 7.11± 0.58. The system ran stably and produced two kinds of economic products, providing technical support for the promotion of aquaponics system.

Key words: aquaponics, recirculating aquaculture system (RAS), strawberry, Scortum barcoo, water quality