• 한국양식학회지
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• 제20권1호
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• pp.26-30
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• 2007

2004년 10월부터 2005년 9월까지 서해안 안면도 해역에서 채집한 해삼(Stichopus japonicus)의 생식소 발달과 생식주기에 관하여 조직학적 방법을 이용하여 조사하였다. 해삼은 자웅이체이며, 생식소는 암 수 모두 다수의 배우자형성소낭으로 이루어져 있었다. 생식소지수(GSI)는 암 수 모두 각각 6월(7.91, 7.21)에 가장 높았으며, 10월(0.42, 0.53)에 가장 낮았다. 서해안 해삼의주 산란기는 $6{\sim}8$월이며, 생식주기는 분열증식기($1{\sim}3$월), 성장기($3{\sim}4$월), 성숙기($4{\sim}7$월), 산란기($6{\sim}8$월) 및 퇴화 및 휴지기($8{\sim}1$월)로 구분할 수 있었다.

• 대한약학회:학술대회논문집
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• 대한약학회 2001년도 Proceedings of International Convention of the Pharmaceutical Society of Korea
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• pp.258.1-258.1
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• 2001

• 한국대기환경학회지
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• 제24권2호
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• pp.259-270
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• 2008

The regional air movement in a coastal area is generated by the different heat capacities of sea and land sides, which is called sea/land breeze. In the west coast area, the local air quality is significantly influenced by this sea/land breeze. In this study, the mathematical model is proposed to estimate the effective area of sea/land breeze. A commercial air model, that is suggested as an alternative air model by USEPA, is introduced to simulate the mechanism of sea/land breeze generation. From this study, it is confirmed that the numerical approach proposed in this study is reliable to predict the effective area of sea breeze in a coastal area. It implies that the current application of common air model needs to be carefully reviewed especially when dealing with a coastal air quality issue. It is also found that the sea breeze in Incheon area has the impact in the range of approximately 24 km in-land side, so-called penetration length.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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• pp.414-417
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• 2008

We have extracted a surface deformation map of a part of Canisteo Peninsula on Amundsen Sea in West Antarctica by applying 4-pass DInSAR technique to two ERS-1/2 tandem pairs obtained on October 21-22, 1995 (diff-pair) and March 9-10, 1996 (topo-pair), and analyzed changes of glaciers, sea ice, ice shelves, and their kinematic interactions. We observed fast motion of glaciers pushing the adjoining sea ice. Some interferometric phases indicate the up-rise of sea ice of which type is thought to be land-fast ice to exert repulsive force against the pushing glacier. There were other glaciers and sea ice that moved to the same direction, suggesting that the sea ice in these regions was land-fast ice weakly harnessed to sea bottom or pack ice not harnessed at all. Several small circular fringes in ice shelves suggested that islands or seamounts on the bottom of ice shelves deterred the movement of ice shelves, resulting in the rise of ice surface.

• 한국수산과학회지
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• 제49권3호
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• pp.376-384
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• 2016

Seasonal catch distributions of large purse seines and daily landings of coastal set nets were analyzed to understand the migration path of the Spanish mackerel Scomberomorus niphonius around Korean waters. The Spanish mackerel start to move toward the coastal region in the South and West Sea in May for spawning and stay until July, when spawning finishes. Afterwards, they start to migrate to the East China Sea and the southern East Sea and are found irrespective of the onshore and offshore regions. Therefore, they disappear from the offshore region during the spawning season in June and July, and a new recruitment population of age 0 begins to inflow into the coastal fishing grounds in the South Sea and West Sea in August, one month earlier than in the Japanese coastal region of the East Sea.

• 한국조경학회지
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• 제35권3호
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• pp.71-81
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• 2007

This study focused on the one and only temple of on the coastline of the West Sea, Kimje's Manghae Temple and Mt. Jinbong. The purpose of this study was to research the unique sense of place of the area by researching the location and view that clearly shapes the identity of the landscape. The following are the results. 1. The cultural landscape of Manghae Temple and the natural landscape of Mt. Jinbong have characteristics which take in the coastline and skyline, respectively. Specifically, from the existential vertical-horizontal images of "sky - land - Mt. Jinbong" and "moon - cloud - sea", an ascending reflection of the landscape surroundings can be found. 2. The "Sea - Manghae temple - Mt. Jinbong - sky" is the representation of the moderate 'inside-space' which belongs to the particular landscape area and which also shows the topophilia to Manghae Temple. Through this kind of interpretation, the sense of place of Manghae Temple and Mt. Jinbong reveals an intra-structure of an Imaging Landscape implying harmony and moderation, which is a unified organization of the surrounding phenomena(Temple and Mountain) and the essence (the doctrine of Buddhism) that matches Jin-muk's asceticism and lifestyle. 3. While the cultural landscape of Manghae Temple has a strong religious reference, the natural landscape Mt. Jinbong emphasizes the geography of the landscape. In other words, the motivating factor of Manghae Temple is a metaphorical sense of place such as through the "prospect of the sea" or "the Western Sea Paradise" and Mt. Jinbong, the landmark of the Kimje-Mankyung Plains and the focal point of the West Sea sunset, is highlighted as a simile for this sense of place. 4. Keeping this sense of place and territory respectively and showing the. bond with the sense of place which develops rhythmically and continuously, Manghae Temple and Mt. Jinbong are sublimated into a unified intra-structure, which reflects the Imaging landscape characteristics of "Mt. Jinbong, a focal point of the Mankyung Plains facing the West Sea" and "Manghae Temple, looking out to sea".

• 환경생물
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• 제36권3호
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• pp.392-399
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• 2018

해산로티퍼(Brachionus plicatilis)의 생존 및 개체군 성장률(r)을 사용하여 Zinc undecylenate (ZU)에 대한 독성평가를 실시하였다. 24 h 동안 ZU에 노출된 B. plicatilis의 생존율은 실험 최고농도 $100mg\;L^{-1}$에서도 영향이 나타나지 않았으나, ZU에 72 h 노출된 개체군 성장률(r)은 농도 의존적으로 감소하는 경향을 나타내, $12.5mg\;L^{-1}$에서 유의적인 감소를 나타냈고 최고농도 $50.0mg\;L^{-1}$에서 개체군 성장률이 90% 이상 감소되었다. ZU에 노출된 B. plicatilis의 개체군 성장률의 반수영향농도($EC_{50}$)값은 $26.4mg\;L^{-1}$, 무영향농도(NOEC)는 $6.3mg\;L^{-1}$, 최소영향농도(LOEC)는 $12.5mg\;L^{-1}$로 나타났다. 자연생태계 내에서 ZU 물질이 해수 중에서 $12.5mg\;L^{-1}$ 이상을 초과하여 나타낼 때 B. plicatilis와 같은 동물성플랑크톤의 개체군 성장률이 영향을 받을 것으로 판단되며, 이러한 연구결과는 신방오도료물질의 생태안정성 평가를 위한 기준치 설정 및 다른 방오도료물질과의 독성치를 비교할 수 있는 유용한 자료로 활용될 것으로 판단된다.

• 한국수산과학회지
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• 제44권3호
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• pp.259-266
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• 2011

To produce cupped oyster sprat consistently, we investigated the efficiency of nine settlement substrates using selective breeding of Pacific oyster Crassostrea gigas, with the goal of popularizing off-bottom culture on the west coast of Korea. We also compared the growth and survival of selectively bred sprat (diploid) with triploid sprat from an off-bottom culture system. Considering, the attachment rate and detachment efficiency, producing cupped oyster in a polypropylene gunny bag proved to be the most effective method. There were no differences in shell growth or total weight between the diploids from selective breeding and triploids from off-bottom culture for 5 months. However, the survival rate was 8 times higher in the diploids than the triploids. Transplanting sprat from selective breeding is one way to restore oyster farms and nurture off-bottom culture along the west coast.

• 한국전자통신학회논문지
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• 제18권1호
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• pp.219-230
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• 2023

해양폐기물은 위치에 따라서 해안폐기물, 부유폐기물, 침적폐기물로 분류한다. 환경 문제에 대한 인식이 높아지면서 눈에 보이는 쓰레기들 외에 해양침적쓰레기에 대한 관리 및 수거가 필요하다. 우리나라 삼면의 바다 중 서해의 해양침적폐기물 종류별 분포 특성을 파악한 연구이다. 연구를 통해 폐합성수지, 고철, 폐타이어, 기타 순으로 많은 양이 나타난 것을 알 수 있었다. 특히, 서해 바다의 폐합성수지 심각성에 대해 보여주는 결과로 이로 인해 머지않아 해양생태계 뿐만 아니라 우리의 삶에도 막대한 영향을 미칠 것으로 보인다. 본 연구를 통하여 쉽게 알지 못하는 서해 침적쓰레기의 종류와 분포에 대해 인식하게 되고, 향후 수거활동에 도움이 되는 기초연구 자료로 활용될 수 있다.

• 한국어류학회지
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• 제35권4호
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• pp.313-324
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• 2023

2018년 태안 연안에서 계절별로 통발과 삼중자망으로 수산생물의 종조성과 계절변동을 조사하였다. 두 종류의 어구에서 총 78종, 4,501개체, 373,474.0 g으로 둥근성게가 우점하였다. 통발에서는 52종, 3,059개체, 81,546.8 g으로 갑각류가 가장 많았고, 둥근성게 다음으로 그라비새우가 우점하였다. 삼중자망에서는 57종, 1,442개체, 291,926.9 g으로 어류가 가장 많았으며, 그중 홍어가 가장 높게 나타났다. 군집분석 결과, 2개의 뚜렷한 그룹으로 구분되었는데 해양환경 변화에 따라 수산생물의 종 구성이 달라지는 것으로 나타났다.