Aquaculture Farming Effect on Benthic Respiration and Nutrient Flux in Semi-Enclosed Coastal Waters of Korea SCIE SCOPUS

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Title
Aquaculture Farming Effect on Benthic Respiration and Nutrient Flux in Semi-Enclosed Coastal Waters of Korea
Author(s)
Kim, Sung Han; Lee, Jae Seong; Kim, Kyung Tae; Kim, Hyung-Chul; Lee, Won-Chan; Choi, Dong Mun; Choi, Sang-Hwa; Choi, Jae-Hoon; Lee, Hyo-Jin; Shin, Jae-Hyuk
KIOST Author(s)
Kim, Sung Han(김성한)Lee, Jae Seong(이재성)Kim, Kyung Tae(김경태)Choi, Dong Mun(최동문)Choi, Sang-Hwa(최상화)
Alternative Author(s)
김성한; 이재성; 김경태; 최동문; 최상화
Publication Year
2021-05
Abstract
Sediment oxygen demand (SOD) and benthic nutrient fluxes (BNFs) were measured using an in situ benthic chamber at a fish farm (FF), oyster farm (OF), and controls (FF-C and OF-C) to assess the impact of aquaculture activities on organic carbon (OC) and nutrients cycles in coastal waters of Korea. The SOD at FF and OF ranged from 60 +/- 2 to 157 +/- 3 mmol m(-2) d(-1) and from 77 +/- 14 to 84 +/- 16 mmol m(-2) d(-1), respectively, more than five times those of the control sites. The SOD at farm sites is highly correlated with fish stock and food input, suggesting that excess feed input is an important control factor for OC remineralization. The combined analysis of sediment trap and SOD indicates that most of the deposited OC oxidized in the sediment and/or was laterally transported by the current before being buried in the sediment. The benthic nutrient fluxes at farms ranged from 5.45 to 8.95 mmol N m(-2) d(-1) for nitrogen and from 0.51 to 1.67 mmol P m(-2) d(-1) for phosphate, respectively, accounting for 37-270% and 52-804% of the N and P required for primary production in the water column. These results indicate that aquaculture farming may profoundly impact biogeochemical cycles in coastal waters.
ISSN
2077-1312
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41411
DOI
10.3390/jmse9050554
Bibliographic Citation
JOURNAL OF MARINE SCIENCE AND ENGINEERING, v.9, no.5, 2021
Publisher
MDPI
Subject
FISH CAGE FARM; ORGANIC-MATTER; SULFATE REDUCTION; CRASSOSTREA-GIGAS; ARTIFICIAL DYKE; CHEMICAL FLUXES; STABLE-ISOTOPE; OYSTER CULTURE; PACIFIC OYSTER; MASS BALANCES
Keywords
aquaculture; sediment oxygen demand; organic carbon remineralization; benthic nutrient flux; carbon cycle; nutrient cycle
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

Management of marine environment,Marine pollution,Trace metal(Heavy metal),해양환경관리,해양오염,미량금속(중금속)

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