Mariculture and eutrophication in Jinhae Bay, Korea

Cho, Chang-Hwan

doi:10.1016/0025-326x(91)90687-n

Cited by 17 publications

(4 citation statements)

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“…Since hypoxia was first reported in JB in September 1974 (Kim et al, 1976), this phenomenon has been considered to be more than just a scientific issue, with catastrophic mass mortality events occurring in the oyster farms of JB due to severe hypoxia in August 1978 (Cho, 1979). Hypoxia has been reported to occur every summer in JB (Cho, 1991;Hong et al, 1991;Lim et al, 2006;. Since the publication of these reports documenting the hypoxia in JB, coastal hypoxia phenomena have been recorded in other coastal regions (e.g., Cheonsu Bay, Gamak Bay, SB, and Yeongsan Bay; Han and Park, 1999;Kim J.…”

Section: A Brief Overview Of Hypoxia In Korean Coastal Watersmentioning

confidence: 99%

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Hypoxia in Korean Coastal Waters: A Case Study of the Natural Jinhae Bay and Artificial Shihwa Bay

et al. 2018

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Several coastal regions in Korea have suffered from hypoxia since the 1970s. We present the first review of Korean coastal hypoxia, focusing on its spatiotemporal variation, controlling factors, and effects on marine ecosystems. The review considers the two hotspots of the natural Jinhae Bay (JB) and artificial Shihwa Bay (SB), which are referred to as "Korean dead zones." The hypoxia in the JB is attributed to eutrophication due to domestic and land-used waste input and thermal stratification based on the naturally sluggish water circulation, whereas the hypoxia in the SB is due to eutrophication resulting from domestic, land-used, and industrial waste input and haline stratification as a consequence of the artificially created water stagnation. The bottom-water hypoxia and stratification has led to an imbalance in nitrogen:phosphorus ratio between surface and bottom waters. Hypoxia has also created undesirable benthic community changes in the both bays: (1) mass mortality of large species and recolonization with elevated abundances of opportunists in JB, and (2) decrease of the number of species, abundance, and diversity of benthic communities in SB. Therefore, it behooves us to pay attention to these environmental changes. This review will be helpful in determining the direction of future studies of Korean coastal hypoxia.

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Section: A Brief Overview Of Hypoxia In Korean Coastal Watersmentioning

confidence: 99%

“…JB was the most important spawning and nursing ground for fish and shellfish in the Korean coastal water until the 1970s (Cho, 1991). Since then, anthropogenic activities, such as rapid industrialization/urbanization and intensive aquaculture development, have resulted in massive nutrient loading.…”

Section: General Characteristicsmentioning

confidence: 99%

Hypoxia in Korean Coastal Waters: A Case Study of the Natural Jinhae Bay and Artificial Shihwa Bay

et al. 2018

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“…많은 아시아 국가의 연안역에서 빈산소가 발생하는 것으 로 알려지고 있는데 (Wu, 1982;Hong, 1987;Jeng and Han, 1996;Lim et al, 2006), 한국의 연안에서는 적조와 연관되어 여름철에 자주 발생하는 것으로 보고되고 있다 (Cho, 1991;Kim, 1990 (Shin, 1995).…”

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Sediment Oxygen Consumption Rate and Hydrogen Sulfide Release by Dissolved Oxygen Depletion in Hypoxic Area of the Gamak Bay, Korea

Lee¹

2015

Journal of Wetlands Research

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요 약 핵심용어 : 가막만, 황화수소, 빈산소, 퇴적물 산소소모율 AbstractThis study investigated sediment oxygen consumption rates and geochemical characteristics of sediment in hypoxic area of the Gamak Bay based on the chamber experiments and geochemical analyses. The organic carbon contents of surface sediment in the Gamak Bay showed that the inner bay area has higher organic carbon content than those of the outer bay. They toward the outer bay, contents dropped off. The vertical profiles of calcium carbonate (CaCO3) content at piston core sediment assumed that the hypoxia have been frequently occurred during past century in the northern inner bay. The benthic chamber experiments were conducted in February, May, August and November 2010, 2011 in the hypoxic area of the Gamak Bay. In the sediment incubation experiment with chamber at site C3 in the northern inner bay and site C17 in the southern outer bay, the sediment oxygen consumption rate ranged from 3.98 mmol m

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“…Several investigators have reported significant decrease in phytoplankton species diversity as well as a number of invertebrates and fish species in the inner bay 21,22 . Since 1995, blooms of the harmful dinoflagellate, Cochlodinium polykrikoides, have caused considerable mortality of aquatic organisms and economic loss in Korea 23,24 . A paralytic shellfish poisoning (PSP) incident caused by the consumption of the mussel Mytilus edulis occurred for the first time in Korea in April 1986 25 .…”

Section: Introductionmentioning

confidence: 99%

Occurrence and spatial distribution of organic contaminants in sediments from Chinhae Bay, Korea

Shim

Hong

Yim

et al. 2010

Toxicol. Environ. Health. Sci.

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Persistent organic pollutants (POPs) were monitored in surface sediment of Chinhae Bay, Korea. Sum (») concentration (minimum, maximum and averageng/g dry weight) ranged: »BTs (ng Sn/g): 12, 1230, 221; »PAHs: 54, 632, 182; nonylphenol: 107, 207, 148; bisphenol A: 4.36, 135, 83; T-PCBs: 0.64, 18, 3.49; »DDT: 0.19, 7.36, 1.15; »CHL: 0, 0.49, 0.06; »HCH: 0.03, 0.36, 0.10. Among them BTs, PAHs, nonylphenol and bisphenol A were detected in all locations. Chlordanes, HCHs and DDTs were at low levels. Levels of tributyltin remained similar to levels in 1987-94. PAHs were within national average. Chinhae Bay derives its pollution from a) two possible point sources, namely, industrial and urban activities from inner Masan Bay and shipping activities from Kohyon Bay; b) diffuse sources of various sorts. Spatial distribution and chemical composition of POPs together with their inter-relationships were investigated.

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Mariculture and eutrophication in Jinhae Bay, Korea

Cited by 17 publications

References 0 publications

Hypoxia in Korean Coastal Waters: A Case Study of the Natural Jinhae Bay and Artificial Shihwa Bay

Hypoxia in Korean Coastal Waters: A Case Study of the Natural Jinhae Bay and Artificial Shihwa Bay

Sediment Oxygen Consumption Rate and Hydrogen Sulfide Release by Dissolved Oxygen Depletion in Hypoxic Area of the Gamak Bay, Korea

Occurrence and spatial distribution of organic contaminants in sediments from Chinhae Bay, Korea

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