Sustainability Evaluation for Shellfish Production in Gamak Bay Based on the Systems Ecology 1. EMERGY Evaluation for Shellfish Production in Gamak Bay

Oh, Hyun-Taik; Lee, Suk-Mo; Lee, Won‐Chan; Jung, Rae-Hong; Hong, Suk-Jin; Kim, Nam-Kook; Tilburg, Charles E.

doi:10.5322/jes.2008.17.8.841

Cited by 8 publications

(2 citation statements)

References 2 publications

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“…생태 계서비스 가치 평가방법 가운데 생물리적 방법으로 분류(TEEB, 2010)되는 에머지 평가법은 1990년대 중반 국내에 도입 (Lee and Odum, 1994)된 이후 다양한 분야에 적용되었는데, 해양생태계의 경우 수산업 (Sohn et al, 1996;Eum et al, 1996;Oh et al, 2008), 갯벌 (Kang, 2001;Kim, 2002;Kang et al, 2006), 하구 (Lee et al, 2001;Song and Je, 2004;Lee and Kang, 2008;Kang, 2013), 무인 도서 (Nam et al, 2010;Kang, 2010) (Odum , 1996). 에머지(emergy)는 energy memory Kim, 2012.…”

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Emergy Valuation of Tidal Flat Ecosystems in Korea: I. Characteristics of Environmental Emergy Inputs

Nam

Kang

2016

The Sea

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전국 및 지역별 갯벌을 대상으로 갯벌생태계의 생태적 과정을 유지하고 생태계서비스를 제공하는데 기본 토대인 자 연환경에너지(태양, 바람, 파도, 강수, 조석 등)를 통한 에머지 유입 특성을 분석하였다. 우리나라 갯벌생태계로 유입하 는 자연환경에너지가 공급한 에머지 총량은This study analyzed the characteristics of emergy inputs from environmental sources that are essential in maintaining ecological processes and providing ecosystems services of the tidal flat ecosystems in Korea. Environmental sources provided a total of 4.98×10 21 sej/yr of emergy to the tidal flats of Korea. The emergy inputs from environmental sources were worth 1,141 billion ￦/yr. This is the value of environmental conditions that are the basis of ecosystem services provided by the tidal flat ecosystems. The emergy input per hectare to regional tidal flats decreased along the coastline from northwest to southeast, with the highest input in the Incheon-Gyeonggi area in the central western part of the Korean coast and the lowest input in the Busan area in the southeastern end. This reflects the general distribution pattern of the magnitude of tidal ranges along the Korean coast. There was no a clear-cut relationship between emergy inputs per unit area and fishery production(expressed in emergy quantity) per unit area. However, tidal flats in the west coast with higher emery inputs per unit area produced more fishery products than those in the south coast with lower emergy inputs, suggesting a possibility that the emergy inputs could be used for the rapid evaluation and comparison of the potential for ecosystem service provision by individual tidal flats.

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Emergy Valuation of Tidal Flat Ecosystems in Korea: I. Characteristics of Environmental Emergy Inputs

Nam

Kang

2016

The Sea

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“…가막만의 해양환경과 패류양식에 관하여 수온과 염분 (Lee and Cho 1990), 해수유동패턴 (Lee 1992), 기초생산력 (Cho et al, 1996a), 환경수용력 (Cho et al, 1996b), 빈산소수괴 특성 (Kim et al, 2007), 패류생산의 지속적 평가를 위한 에 너지 수지 (Oh et al, 2008), 이매패류 군집특성 (Kim et al, Chlorophyll a was the highest in August, Gumchun area.…”

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Effects of Water Temperature on The Mass Mortality of Pacific Oyster, Crassostrea gigas in Gamak Bay

Kim¹,

Oh²,

Shin³

2013

The Korean Journal of Malacology

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We investigated the factors of mass-mortality in terms of water temperature and prey, in order to prevent the mass-mortality of cultured oysters at Gamak Bay in Yeosu City in 2007. The real-time water temperature was recorded as high, 28 to 31C, during late August. Nutrients, Dissolved Inorganic Nitrogen (DIN) and Dissolved Inorganic Phosphate (DIP) were downed in September. The analyzed results of chlorophyll a content were 0.78-1.50 μgL -1 and phytoplankton for food resources was 81 cells mL -1, both were low. The finding here indicate that Gamak Bay is in an oligotrophic state. The mass-mortality of cultured oysters occurred 43.6% in Gamak Bay. The mortality rate of oyster were above 67.0%, at Wanpo, however, it was showed 18.3% at Gumchun. Therefore, we believe the mass-mortality of cultured oysters at Gamak Bay comes from the destruction of bio-rhythms due to high water temperature and quantitatively and qualitatively decreasing food resources due to the limitation of nutrients.

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Effects of hypoxia on copepod egg hatching success: An in situ study

Choi,

Belmonte,

Hyun

et al. 2024

Journal of Marine Systems

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Sustainability Evaluation for Shellfish Production in Gamak Bay Based on the Systems Ecology 1. EMERGY Evaluation for Shellfish Production in Gamak Bay

Cited by 8 publications

References 2 publications

Emergy Valuation of Tidal Flat Ecosystems in Korea: I. Characteristics of Environmental Emergy Inputs

Emergy Valuation of Tidal Flat Ecosystems in Korea: I. Characteristics of Environmental Emergy Inputs

Effects of Water Temperature on The Mass Mortality of Pacific Oyster, Crassostrea gigas in Gamak Bay

Effects of hypoxia on copepod egg hatching success: An in situ study

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