• Proceedings of the Malacological Society of Korea Conference
• /
• 2001.11a
• /
• pp.35-36
• /
• 2001

해양의 유기물 합성의 95%를 담당하는 식물프랑크톤은 해양 먹이연쇄의 1차 생산자로서 이들을 여과 섭식하는 이매패류는 식물프랑크톤의 분포나 양에 따라 그 생산이 좌우된다. 그러나 이 식물프랑크톤의 분포는 동일한 해역이라도 영양염류, 수온, 태양광선의 세기와 해수면에 입사된 광선이 해수 중에서 소멸되는 정도 등에 따라 생선속도가 달라지므로 동일해역에서도 분포의 변이가 매우 심하다. 기초생산력의 차이는 굴 성육에 관계되므로 여과섭식성 이매패류 양식장의 생산성 평가의 기초자료로 이용되고 있다(배 등, 1978; 이 등, 1991). 이 연구는 북만의 기초생산력을 조사하여, 다른 해역과 비교하고 먹이생물의 생산능력에 의한 굴양식장 수용력을 검토하는 자료로 제공하였다.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.29 no.5
• /
• pp.709-715
• /
• 1996

In order to estimate the carrying capacity of oyster culture ground in Kamak Bay, primary productivity was calculated using the ecosystem model. The allowable maximum oyster production, namely, the carrying capacity of Kamak Bay was estimated by using the annual phytoplankton production and conversion coefficient to oyster meat. On the environmental conditions of oyster culture period from lune, 1994 to March, 1995, phytoplankton production, the allowable maximum oyster production were estimated to be 181,594 tons of carbon and 287,033 tons of oyster meat, respectively. The allowable maximum oyster production was estimated to be 15,443 tons in the actual culture ground where oyster culture facilities are installed in Kamak Bay. In 1994 4,532 tons of actual oyster meat production was equivalent to ra. $29\%$ of carrying capacity, and in 1987 it was 14,592 tons equivalent to ca. $95\%$.

• Proceedings of the Malacological Society of Korea Conference
• /
• 2001.11b
• /
• pp.155-156
• /
• 2001

• Proceedings of the Malacological Society of Korea Conference
• /
• 2001.11b
• /
• pp.153-154
• /
• 2001

• Proceedings of the Malacological Society of Korea Conference
• /
• 2002.11a
• /
• pp.23-24
• /
• 2002

• Korean Aquaculture
• /
• v.15 no.2
• /
• pp.92-95
• /
• 2003

• The Korean Journal of Malacology
• /
• v.32 no.3
• /
• pp.157-164
• /
• 2016

For the hygienic production of oyster at Goseong bay, this study investigated the marine bacteriological condition of the area from 2008 to April 2009. Average seawater temperature and salinity ranged $2.8-19.3.0^{\circ}C$ and 32.61-34.91 psu, respectively. The coliform group and fecal coliform of seawater ranged < 1.8-4,900 MPN/100 mL and < 1.8-700 MPN/100 mL, respectively. The coliform group of oyster (Crassostrea gigas) ranged < 1.8-13,000 MPN/100 g. Fecal coliform of oyster ranged and < 1.8-310 MPN/100 g. Only one of 140 samples was exceeded in the U.S NSSP standard (> 230 MPN/100 g) of fecal coliform. Fecal coliform in seawater was on the level of clean sea, below the U.S. NSSP standards, and the contents of fecal coliform and heavy metals in cultured oyster were also below the U.S. NSSP, heavy metal standards, showing that the sea area is bacteriologically safe.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.18 no.3
• /
• pp.185-191
• /
• 2012

Most of Korean farms have been developed in the semi-closed bay, and its position is very vulnerable to the coastal contamination due to the long term and the high density. So, mariculture management is very essential for the sustainable aquaculture. Some of the specific ways would be the assessment of the optimal stocking density for mariculture management zone and this has to consider both the suitable site selection and the assessment of ecological carrying capacity. Habitat suitability index(0.0 totally unsuitable habitat, 1.0 optimum habitat) and ecological indicator(Filtration pressure indicator) was used to assess the stocking density for oyster farms in Geoje-Hansan Bay. Geoje Bay showed the higher habitat suitability index value 0.75 than Hansan Bay 0.53, indicating that Geoje Bay is more suitable for oyster farming. Ecological indicator showed different stocking density according to the coastal characteristics in Geoje-Hansan Bay. Consequently, it is desirable that the stocking density in Geoje Bay should reduce average 40% and Hansan Bay, average 60% than present, in order to meet the ecological carrying capacity. The assessment of the stocking density could solve various problems such as the coastal contamination, environmental aggravation and the productivity decrease and this study could be a scientific basis to establish the policies for mariculture management.

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2000.05a
• /
• pp.459-460
• /
• 2000

난소기생충, Marteilioides chungmuensis는 참굴, Crassostrea gigas의 난소 내에 택적으로 기생하여, 참굴의 재생산에 영향을 미치는 것으로 알려져 있다(박 등, 1999). 특히, 1990년대에 들어 우리 나라 남해안의 굴양식장에서 이 기생충의 출현율이 급격히 증가함에 따라, 굴 종묘의 안정적 확보에 큰 차질을 빚고 있다. 따라서, 본 연구는 난소기생충(농림부, 1997)의 출현 특성과 병원성을 밝혀, 난소기 생충이 참굴의 재생산 외에 굴의 양식생태에 미치는 영향을 밝히고자 실시하였다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2001.10a
• /
• pp.219-220
• /
• 2001

연안퇴적물로 유입되는 유기물은 수중과 해수/퇴적물 계면에서 다양한 생지화학적 반응을 거치면서 재순환되며 일부는 퇴적물로 제거된다. 본 연구는 가막만에서 해역의 특성을 반영하는 대표적 환경인 소호지역, 굴양식장, 어류 양식장 그리고 비교적 교란이 없으리라고 생각되는 지역을 선정하여 이 지역 상부퇴적물에서 일어나는 유기탄소와 암모니아 질소, 인산인의 생지화학적 순환 및 각 성분의 플럭스를 추정하고자 한다. (중략)