Benthic Respiration and Nutrient Release Associated with Net Cage Fish and Longline Oyster Aquaculture in the Geoje-Tongyeong Coastal Waters in Korea SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Benthic Respiration and Nutrient Release Associated with Net Cage Fish and Longline Oyster Aquaculture in the Geoje-Tongyeong Coastal Waters in Korea
Author(s)
Kim, S.-H.; Kim, H.C.; Choi, S.-H.; Lee, W.-C.; Jung, R.-H.; Hyun, J.-H.; Kim, S.H.; Lee, J.S.
KIOST Author(s)
Kim, Sung Han(김성한)Choi, Sang-Hwa(최상화)Kim, Suk Hyun(김석현)Lee, Jae Seong(이재성)
Publication Year
2020-05
Abstract
Sediment oxygen demand (SOD) and benthic nutrient fluxes were measured at five sites using an in situ benthic chamber: fish farm (FF), oyster farm (OF), Tongyeong Marine Science Station (TMSS), and two controls (FF-C and OF-C) June 27–July 1, 2017, to assess the impact of aquaculture on coastal waters of southern Korea. The net oxygen production rate of the epiphyte community attached to farming facilities was also measured using an oxygen microsensor to quantify the potential contribution of organic matter to bottom sediment. The SODs at the FF and OF were − 155.2 ± 0.2 m −2  day −1 and − 88.6 ± 0.1 m −2  day −1 respectively, more than twice those of the control sites (FF-C and OF-C). The benthic fluxes of ammonium and phosphate at the fish farm were 12.7 mmol m −2  day −1 and 3.3 mmol m −2  day −1 , respectively, which were ~ 10 times higher than those of the control sites and ~ 1.5 times higher than at the OF site. The benthic N and P fluxes accounted for 128% and 501%, respectively, at FF and 89% and 70% of N and P requirements, respectively, at OF for primary production. This suggests that aquaculture activities result in an excess supply of nutrients to the water column, thereby inducing eutrophication in the coastal ecosystem. Potentially, the net production of organic carbon by the epiphyte community yielded about 65 mmol C m −2  day −1 , which suggests that organic matter produced by epiphytic communities substantially contributed to benthic respiration. Thus, the commercial finfish and oyster farms increased SOD and benthic nutrient flux, but at a conservatively managed aquaculture (TMSS), there were minimal benthic impacts. © 2019, Coastal and Estuarine Research Federation.
ISSN
1559-2723
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/733
DOI
10.1007/s12237-019-00567-5
Bibliographic Citation
Estuaries and Coasts, v.43, no.3, pp.589 - 601, 2020
Publisher
Springer New York LLC
Keywords
Benthic nutrient flux; Epiphytes; Fish farm; Oyster farm; Sediment oxygen demand
Type
Article
Language
English
Document Type
Article
Publisher
Springer New York LLC
Related Researcher
Research Interests

marine pollution management,marine biogeochemistry,marine environmental radioactivity,해양오염관리,해양물질순환,해양환경방사능

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse