• Animal Systematics, Evolution and Diversity
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• 제10권2호
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• pp.131-144
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• 1994

이 연구는 1980년 7월부터 1991년 11월까지 한국의 동해연안과 남해연안 및 도서지방의 29개 지역에서 채집된 염주발갯지렁이류를 동정 분류한 것이다. 그 결과 5속 8종의 염주발갯지렁이가 밝혀졌으며, 이 중 4종(Haplosyllis spongicola, Opisthosyllis brunea, O. viridis, Parasphaerosyllis ezoensis)은 한국에서 처음으로 보고되는 종으로서, 이들 미기록종에 대하여 상세한 기재를 하고 그림을 그렸다. 표본들은 이화여자대학교 생물과학과에 보관중이다.

• 한국어류학회지
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• 제11권1호
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• pp.29-32
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• 1999

1995년 남해 거제도 부근에서 채집된 어류를 동정한 결과 지금까지 우리나라에서는 서식이 알려지지 않은 Chaunax abei와 Bembrops curvatura로 확인되어 이 2종을 한국산 미기록종으로 보고한다. C. abei는 외부형태적으로 C. fimbriatus와 유사하나 체표의 녹색 무늬 형태가 원형이고 등지느러미의 앞쪽에는 노란 반점과 그 뒤에 약간 패인 곳이 없으며, 유인돌기와의 주변에는 돌기가 없다는 점이, 그리고 B. curvatura는 B. caudimacula와 유사하나 뒷지느러미 연조수 및 측선린 수와, 측선이 깊게 내려간 점 그리고 제 1 등지느러미의 첫 번째 막이 검다는 점 등이 이들 유사종들과 잘 구별되었다. 이들의 한국명으로는 Chaunacidae "점씬벵이과", Chaunax "점씬벵이속", C. abei를 "점씬벵이"로, 그리고 B. curvatura는 "줄굽은눈퉁이"라고 명명하였다.

• 한국패류학회지
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• 제21권1호
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• pp.65-70
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• 2005

The purpose of this study is to determine the appropriate substrate for larval settlement and spat growth in the purple clam, Saxidomus purpuratus in laboratory culture. Larvae were reared with 3 different types of sediments (mud, sand, and mixed) for 46 days in settlement experiment, and settled spats were further grown in 3 types of sediments for 36 weeks in growth experiment. The density of settled spats in muddy sediments was more than 2 times higher than those in mixed or sandy sediments. But, the average size of settled spats in muddy sediments was smaller than those in mixed or sandy sediments. After 36 weeks of growth period, growth rate decreased as shell length increased. When shell length was less than 2 mm, growth rate in mixed sediments was significantly higher than that in sandy sediments. When shell length was more than 2 mm, there was no significant difference in growth rate among different substrates. Sediment type affected growth rate only when the spats were relatively small (less than 2 mm). Muddy sediments seems better for larval settlement, while mixed sediments is best for spat growth. We suggest the laboratory procedure for enhancing seedling production of S. purpuratus.

• 한국수산과학회지
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• 제56권5호
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• pp.615-625
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• 2023

This study evaluated the bacteriological safety of seawater and abalone produced in Uisin-myeon, Jindo-gun from September 2020 to December 2022 and calculated the effect of inland pollution sources on seawater and abalone. We surveyed 33 stations for seawater, 4 stations for abalone, and 7 stations for discharge water of major inland pollutants. We analyzed the coliform group, fecal coliform and Escherichia coli (E. coli) as bacteria indicators. In 924 seawater samples, the geometric mean of the coliform group and fecal coliform were <1.8-5.6 MPN/100 mL and <1.8-2.7 MPN/100 mL, respectively. The estimated 90^th percentile range for the coliform group and fecal coliform were <1.8-42 MPN/100 mL and <1.8-8.4 MPN/100 mL, respectively. The fecal coliform and E. coli levels for 107 abalone were <18-460 MPN/100 g and <18-78 MPN/100 g respectively. Moreover, the analyzed standard plate count was <30-7,700 CFU/g. The fecal coliform level and diffusion area in 7 inland pollutants were <1.8-3,300,000 MPN/100 mL and 2-2,500 m, respectively. The bacteriological safety of seawater and abalone in Uisin-myeon, Jindo-gun, was demonstrated to be a designated area according to Korean standards, a conditionally approved area per US standards, and Class A according to EU standards.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.327-331
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• 2007

23 tropical cyclones of tropical storm(TS) intensity or higher formed in the western North Pacific and the South China Sea in 2006. The total number is less than the 30-year $(1971{\sim}2000)$ average frequency of 26.7, Out of 23, 15 cyclones reached typhoon(TY) intensity, three severe tropical storm(STS) intensity, and five TS intensity. The tropical cyclone season in 2006 began in May with the formation of CHANCHU(0601). While convective activity was slightly inactive around the Philippines from late June to early August. In addition, subtropical high was more enhanced than normal over the south of Japan from May to early August. Consequently, most tropical cyclones formed over the sea east of the Philippines after late June, and many of them moved westwards to China. CHANCHU(0601), BILIS(0604), KAEMI(0605), PRAPIROON(0606) and SAOMI(0608) brought damage to China, the Philippines, and Vietnam. On the other hand, EWINIAR(0603) moved northwards and hit the Republic of Korea, causing damage to the country From late August to early September, convective activity was temporarily inactive over the sea east of the Philippines. However, it turned active again after late September. Subtropical high was weak over the south of Japan after late August. Therefore, most tropical cyclones formed over the sea east of the Philippines and moved northwards. WUKONG(0610) and SHANSHAN(0613) hit Japan to bring damage to the country. On the other hand, XANGSANE(0615) and CIMARON(0619) moved westwards in the South China Sea, causing damage to the Philippines, Thailand, and Vietnam. In addition, IOKE(0612) was the first namded cyclone formed in the central North Pacific and moved westwards across longitude 180 degrees east after HUKO(0224).

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2012년도 춘계학술논문집 1부
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• pp.173-176
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• 2012

본 연구는 빈산소에 의한 둥근 성게 (Strongylocentrotue nudus) 수정란의 수정률 및 발생률에 관한 연구이다. 대조군 (normoxia)과 실험군 (hypoxia) 으로 나누어 수정률과 발생률의 변화를 관찰 하였으며 또한 gonad 세포의 유전자 발현의 차이를 봄으로써 스트레스 관련 유전자와 항산화 관련 유전자의 변화를 확인 할 수 있었다. 결과적으로 수정률에서는 큰 차이를 확인 할 수 없었던데 반해 발생률에 있어서 빈산소의 경우 전혀 발생이 진행되지 않는 것을 확인 할 수 있었으며 또한 빈산소에 노출된 gonad 세포의 경우도 스트레스 또는 항산화 유전자가 많이 발현 되는 것을 관찰 할 수 있었다. 앞의 실험을 토대로 빈산소 환경에서 유전자 발현량의 차이를 더욱더 수행함으로써 빈산소 상태에 따른 죽음의 바다의 증가 얼마나 위험한 것인지 더욱더 관찰 할 수 있을 것이다.

• 수산경영론집
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• 제40권3호
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• pp.89-105
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• 2009

South Korea imports more than one hundred tons of fishery products every year from China, Japan, North Korea, etc. However, imported North Korean fishery products was only 4% of the total fishery products imported in 2007. Though South-North Trade as inter-Korean trade is exempted from tax, imports of North Korean fishery products have not been activated owing to import restrictions, insufficient quality control etc. Expanding imports of North Korean fishery products seems, however, to contribute to lessen the supply and demand unbalance in fishery products of South Korea. It will especially gratify a part of fresh and cold fishery products demand. Therefore, we need to expand the imports of North Korean fishery products by quality control improvement, reformation of origin certifying system, import liberalization etc. This study researches the demand and supply of fishery products of South and North Korea, the actual conditions of imports of North Korean fishery products, and suggests strategies to expand their imports. As the greatest reason to oppose imports of North Korean fishery products is the pricing pressure of domestically produced fishery products due to imports of North Korean fishery products, we need to research and analyze the distribution channels, retail markets, sales prices of imported North Korean fishery products to verify that imports of North Korean fishery products has not caused lower pricing of domestically produced fishery products.

• 수산해양기술연구
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• 제55권3호
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• pp.252-263
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• 2019

In order to understand the tidal current and mean flow at the west channel of Yeoja Bay in the South Sea of Korea, numerical model experiments and vorticity analysis were carried out. The currents flow north at flood and south at ebb respectively and have the reversing form in the west channel. Topographical eddies are found in the surroundings of Dunbyong Island in the east of the channel. The flood currents flow from the waters near Naro Islands through the west channel and the coastal waters near Geumo Islands through the east channel. The ebb currents from the Yeoja Bay flow out along the west and the east channels separately. The south of Nang Island have weak flows because the island is located in the rear of main tidal stream. Currents are converged at ebb and diverged at flood in the northwest of Jeokgum Island. Tidal current ellipses show reversing form in the west channel but a kind of rotational form in the east channel. As the results of tide induced mean flows, cyclonic and anticyclonic topographical eddies at the northern tip but eddies with opposite spin at the southern tip are found in the west channel of Yeoja Bay. The topographical eddies around the islands and narrow channels are created from the vorticity formed at the land shore by the friction between tidal currents and the west channel.

• Animal Systematics, Evolution and Diversity
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• 제spc1호
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• pp.1-52
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• 1986

한국(韓國) 해산(海産) 히드라충류(蟲類)의 계통분류학적(系統分類學的) 연구(硏究)의 일환(一環)으로서 1965년부(年)부터 1984년(年)까지 우리 나라의 삼면연안(三面沿岸)과 도서지방(島嶼地方) (60개(個) 지역(地域))에서 채집(採集)된 테히드라류의(類) 표본(標本)을 동정(同定) 분류(分類)하였고 아울러 분포(分布)도 고찰(考察)하였다. 그 결과(結果) 2아과(亞科) 10속(屬) 40종(種)이 밝혀졌으며 이 중(中)에서 21종(種)은 한국미기록종(韓國未記錄種)으로 판명(判明)되었다. 가로테히드라 (Sertularella miurensis) 가 가장 흔한 종(種)으로서 우리나라의 전해역(全海域)에 널리 분포(分布)되어 있었고 40종중(種中) 24종이(種) 일본해역(日本海域)과 공유(共有)되어 있었다. 테히드라류의(類) 군집계수(群集係數)에 근거(根據)한 우리나라의 두 해역간(海域間)의 연관(聯關)은 남해(南海)와 황해(黃海)사이가 가장 높았고 남해(南海)와 동해(東海)사이가 그 다음이며 동해(東海)와 황해(黃海)사이는 가장 낮은 것으로 나타났다.

• Journal of the korean society of oceanography
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• 제39권4호
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• pp.207-211
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• 2004

We used long time series of hydrographic and biological variables to examine the ecosystem consequences of a rare, anomalous event in the south sea of Korea. The highest zooplankton biomass in 36 years of sampling occurred in April 1997. Zooplankton biomass exceeded 2 times than the long-term mean at 35% of the stations. Copepod abundance was low in April and June and also failed to show a seasonal peak in 1997. Mackerel (Scomber japonicus) catches were very low in spring 1997 and 1999, in spite of a positive correlation between zooplankton biomass and mackerel catches at lags of 0, 12 and 24 months. It was discussed that a high zooplankton biomass with low copepod abundance in April 1997 resulted from unusual high temperature and salps abundance. Water temperatures were ca. $2^{\circ}C$ higher than the long-term mean at the surface. Salps and doliolids (thaliaceans), especially the warm-water species Doliolum nationalis, dominated the zooplankton. An unusual incursion of the Tsushima Warm Current may have transported the thaliaceans into the area and/or produced favorable conditions for a bloom. This study suggested that taxonomic composition of zooplankton was important to decide mackerel catches.