Fluctuations of Dissolved Oxygen Concentration in Land Based Aquarium for Intermediate Breeding of Abalone and their Oxygen Consumption

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  • Masuda Atsunori
    Yanmar Environmental Sustainabiliy Support Association
  • Onji Takehiko
    Cosmo Business Associates Co. Ltd. Shimane･Kashima Aquaculture Promotion Center
  • Murakami Katsusuke
    Department of Environmental Science and Technology, Graduate School of Bioresources, Mie University

Bibliographic Information

Other Title
  • アワビ陸上中間育成水槽における溶存酸素濃度変動とアワビの酸素消費量
  • アワビ リクジョウ チュウカン イクセイ スイソウ ニ オケル ヨウゾンサンソ ノウド ヘンドウ ト アワビ ノ サンソ ショウヒリョウ

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Abstract

Controlling dissolved oxygen (DO) level in rearing tank is one of the most important for intermediate breeding of abalones with land based production facilities. Continuous DO measurement was conducted for two rearing tanks of 15.5 m3 seawater each and containing 19,000 abalone of 50 mm length and 60,000 abalone of 23 mm length in running seawater condition of 17.6 m3 per hour. Oxygen consumption of abalone was also examined. A model formula expressing oxygen distribution in rearing tank was made based on these data. There are diurnal changes in DO concentration in rearing tank, higher in afternoon and lower in midnight, and DO decreased to less than 80% of saturation couple of times, harmful level for good growth.

Journal

  • Eco-Engineering

    Eco-Engineering 27 (3), 67-72, 2015

    The Society of Eco-Engineering

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