Performance of a lab-scale closed seawater recirculating system for Korean rockfish Sebastes schlegeli culture SCOPUS KCI

Title
Performance of a lab-scale closed seawater recirculating system for Korean rockfish Sebastes schlegeli culture
Author(s)
Peng, L.; Oh, S.-Y.; Jo, J.-Y.
KIOST Author(s)
Oh, Sung Yong(오승용)
Publication Year
2003
Abstract
Performance of a laboratory scale closed seawater recirculating aquaculture system was evaluated. Twenty-kg of Korean rockfish (130 fish) with an average body weight of 153.8 g was stocked. Over a 107-day culture period, fish reached final density of 51.7 kg/m3 (initial density, 33.3 kg/m3) on the basis of the culture tank volume. On a daily basis, added water amounted to 3.4% of the total water volume in the system. Total ammonia nitrogen (TAN) concentrations were below 1 mg/l and nitrite nitrogen (NO2-N) concentrations were within the range of 1-3 mg/l on most sampling days. TAN was removed from bead and sand filters and it was removed or produced in the sedimentation basin. Basically, NO2-N was removed in the bead and sand filters, while it was either removed or produced in the sedimentation basin. Nitrate nitrogen (NO3-N) was produced in the bead filters and removed from the sand filter and sedimentation basin. The foam fractionator performed well in the recirculating system. The maximal daily removal values for total suspended solids (TSS) and protein were 10.9 g and 1.4 g, respectively. Whole water quality parameters were within the levels commonly recommended for fish culture on most of the sampling days. However, further studies are needed to evaluate the commercial feasibility of this system because of the small-scale system used in present experiment. At least, the present study still provides some basic information for further studies of this kind of system.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5593
DOI
10.4217/OPR.2003.25.4.493
Bibliographic Citation
Ocean and Polar Research, v.25, no.4, pp.493 - 501, 2003
Publisher
Korea Ocean Research and Development Institute
Subject
aquaculture system; fish culture; performance assessment; recirculating system; water quality; Sebastes; Sebastes schlegeli; Sebastes schlegeli
Keywords
Denitrification; Korean rockfish; Nitrification; Recirculating aquaculture system
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

Fish aquaculture,Aquacultural engineering,Environmental physiology,어류 양식,양식 공학,환경생리학

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