• 한국패류학회지
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• 제26권2호
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• pp.127-143
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• 2010

Based on investigation of collections at the A.V.Zhirmunsky Institute of Marine Biology of the Far-Eastern Branch of the Russian Academy of Sciences (Vladivostok) and Zoological Institute of the Russian Academy of Sciences (Saint-Petersburg), as well as on the analysis of published data, the species composition of shell-bearing gastropod mollusks of the Russian waters of the East Sea, consisting of 331 species and subspecies, has been identified. Eachspecies is assigned to a biogeographic grouping in the study area. Its type locality and habitat (depth and substrate) are also documented. The second part of this review includes 101 species from Sorbeoconcha and Hypsogastropoda (Caenogastropoda).

• 한국패류학회지
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• 제26권2호
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• pp.115-126
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• 2010

Based on investigation of collections at the A. V. Zhirmunsky Institute of Marine Biology of the Far-Eastern Branch of the Russian Academy of Sciences (Vladivostok) and Zoological Institute of the Russian Academy of Sciences (Saint-Petersburg), as well as on the analysis of published data, the species composition of shell-bearing gastropod mollusks of the Russian waters of the East Sea, consisting of 331 species and subspecies, has been identified. Each species is assigned to a biogeographic grouping in the study area. Its type locality and habitat (depth and substrate) are also documented. The first part of this review includes 55 species from Patellogastropoda, Vetigastropoda and Cocculiniformia.

• Animal Systematics, Evolution and Diversity
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• 제31권2호
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• pp.107-113
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• 2015

Two diogenid hermit crab species, Dardanus lagopodes and Diogenes deflectomanus, are newly reported from Korea. Dardanus lagopodes is distinguished from the other species of genus Dardanus in Korea by having setae with cream-colored tips on the cephalothorax and the following characteristics: ocular peduncles somewhat longer than antennular peduncles, and the pereopod without a longitudinal sulcus and scute-like projections. Diogenes deflectomanus is similar to D. nitidimanus but can be distinguished by having the fixed finger of the left cheliped bent slightly downwardly and the following characteristics: slightly shorter ocular peduncle, elongated left cheliped with small granules on the surface, right cheliped without calcareous teeth on the cutting edge of the dactylus, and the minute spine of post-median margin of the telson is not well developed. The geographical distributions of these two species are extended by the present study. In particular, D. deflectomanus in the current study is the first report outside Chinese waters. Now, 20 species of the family Diogenidae are known in Korean waters.

• 해양정책연구
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• 제34권2호
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• pp.1-28
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• 2019

The purpose of this study is to analyze the substitution among production factors of Korean distant water longline fisheries in IATTC waters. In the analysis, the translog function which have one output variable of total cost and input variables of labor, fuel, fishing gear, and capital was established and it was transformed into simultaneous equations by each cost. Then, variables of equations were estimated by SUR (seemingly unrelated regression) model. Since distant water longline fisheries is a fishing type with high fuel usage, substitution of fuel with other factors was mainly analyzed. Results showed a substitute relation between fuel and labor as well as fuel and fishing gear, while a complementary relation between fuel and capital. In addition, it was analyzed that magnitude of fuel elasticity with other factors would be inelastic.

• Strategy21
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• 통권45호
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• pp.116-147
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• 2019

한국은 지형적으로 반도국가이며 국제정치적으로는 중견국의 위상을 갖고 있다. 이런 유리한 조건에도 불구하고 아직도 대륙지향적 사고에 갇혀 있으며 이는 정교한 해양전략의 탄생을 지체시키는 걸림돌로 작용하고 있다. 이를 극복하기 위해 '바다의 유형'과 '위상'이라는 두 가지 변수를 이용하여 '해양접근전략(the Maritime Access Strategy)'을 제시한다. 나아가 전략을 구성하는 3대 요소-목표, 방법, 수단-을 이용하여 해양접근전략의 정교화를 시도한다. 목표 차원에서는 국가적 차원의 목표를 지원하도록 동기화가 필요하다는 전제에 주목한다. 더불어 다양한 행위자와 상대해야 함을 고려하여 억지(Deterrence), 관여(Engagement), 견제(Check)라는 소목표를 제시한다. 방법 차원에서는 기능적 균형화 작전방안을, 수단 차원에서는 기능적 균형전력을 제시한다. 해양접근전략은 다양한 바다에서 접근강도의 유연성을 갖고 맞춤형으로 다가가는 역동적 메커니즘을 품고 있다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.174-179
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• 2006

Information on the distribution characteristics of tuna resources in Kiribati EEZ waters in three zones (Zone 1: west Gilbert region, Zone 2: central Phoenix region, and Zone 3: east Line region) as well as their relationship with the ocean environment is critical for sustainable managing the migratory tuna resource and fishing practices in this region. Therefore, this study is designed to investigate the spatial and temporal distribution and concentration of bigeye (BET) and yellowfin tuna (YFT) in Kiribati EEZ waters in relation to sea surface temperature (SST) and thermocline depth so as to better understand the tuna resources management basis in Kiribati waters. The geographic and temporal distribution and concentration were first displayed. Paired t-test was utilized to compare the distribution between the two tuna species based on Catch per Unit Effort (CPUE) derived from the Korean longliners during 1996 to 2004, and also among the three zones of Kiribati EEZ waters. Environmental conditions of the three zones were then compared and correlated with the CPUE of YFT and BET. In addition, the effect of ENSO phenomena on the environmental conditions and the distribution of YFT and BET within the three zones were also examined. The BET was relatively higher in the Zone 3 whereas YFT predominate in the Zone 1 and the Zone 2 due to oceanographic differences among the three zones and the ecological habitats of the two tuna species. It was suggested that El Ni?o/Southern Oscillation (ENSO) phenomena altered the oceanographic conditions of the three zones that in turn change the distribution of the two tuna species. During El Ni?o, the warm phase of ENSO, resulted in having more BET in all the three zones and the opposite observed during La Ni?a (cold phase) replacing by having relatively higher catch rate for YFT, particularly in the Zone 2. Although the results of the study are from short periods (1996 to 2004) in considering oceanographic anomality, these environmental variations should be considered into sustainable fisheries management of tuna fisheries in Kiribati EEZ waters.

• Ocean and Polar Research
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• 제27권3호
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• pp.251-263
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• 2005

In order to study changes in the marine ecosystem of the East China Sea derived by the global warming and construction of the Three Gorges Dam in the middle of the Changjiang, temperature, salinity, nutrients, and chlorophyll-a were studied intensively in the northern part of the East China Sea during the summer of 2003 and spring of 2004. According to the previous studies, the upwelling of the Kuroshio Current and the Changjiang resulted in a major inputs of nutrients in the East China Sea, but these two inputs may not contribute gently to a build up of nutrients in the northern East China Sea. In spring, relatively high concentrations of nitrates and phosphates were observed in the western part of the study area, which resulted from the supply of high concentrations of nutrients showing up in the surface waters as a result of vertical mixing from the ocean bottom. The concentrations of nitrates and phosphates observed in summer were lower than those in spring, since the surface waters were well stratified by the larger discharge of fresh water from the Changjiang in summer. The surface nitrate/phosphate ratios ranged from 1.3 to 16 in spring and from 1.1 to 15 in summer and were lower than the Redfield ratio of 16, indicating that the growth of phytoplankton is limited by nitrogen. This results are contrary to the previous results, in which the growth of phytoplankton was limited by phosphate in the East China Sea. The reason for this contrary result is that most nutrients in the surface waters are supplied by vertical mixing from the bottom waters with low nitrate/phosphate ratios, not directly influenced by the Changjiang with high nitrate/phosphate ratios. The depth-integrated chlorophyll observed in summer was similar to the previous results, but those measured in spring were almost twice as high as those found in previous results. The depth-integrated chlorophyll in spring was higher than that of summer, which results from high concentrations of nitrates and phosphates in the surface waters in spring due to active vertical mixing.

• 한국균학회지
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• 제48권3호
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• pp.237-249
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• 2020

경상북도 낙동강의 상주보와 금강중류인 대전시 신탄진의 대청댐주변의 야생효모들의 종 분포특성을 알아보기 위해 먼저 이들지역의 토양과 물들로부터 야생효모들을 분리, 동정하였다. 낙동강의 상주보에서 채취한 시료 47점에서 모두 39종 94 균주의 야생효모들이 분리, 동정되었고 Cryptococcus속 균들이 가장 많았다. 이들중Rhodosporidium azoricum JSL-GRU-009를 포함한 3균주들이 아직까지 국내에 보고되지 않은 미기록 효모들로 최종 선별되었다. 또한, 금강중류지역인 대전시 신탄진의 대청대교와 대청댐주변 토양과 물등 130종의 시료들로부터 105종 209균주들이 분리, 동정되었고 이들 야생효모 균주들로부터 Bullera pseudoalba JSL-GRU-005를 포함한 10종의 균들이 국내 미기록 효모들로 최종 선별되었다. 이들 낙동강 상주보와 대청댐등에서 선별된 13균주들의 균학적 특성을 조사한 결과 이들 미기록 균주들은 구형~타원형으로 출아, 분열법으로 영양 증식하였다. R. azoricum JSL-GRU를 포함한 9균주들이 포자를 형성하였고 10균주들이 비타민을 첨가하지 않은 YPD 배지에서 생육하였다.R. azoricum JSL-GR균주는 20% 포도당을 함유한 YPD 배지에서 잘 생육하였고, R. oryzicola JSL-GRU-003를 포함한 3 균주는 5% NaCl을 함유한 YPD 배지에서 생육하였다.

• Animal Systematics, Evolution and Diversity
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• 제24권3호
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• pp.241-250
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• 2008

Two brackish cyclopoid species are reported mostly from the estuaries and salt marshes in the southern coast of Korea: Limnoithona sinensis (Burckhardt, 1913) and Apocyclops borneoensis Lindberg, 1954. The two species as well as the genera are newly added to Korean fauna. Herein, the redescription is provided with the systematic accounts and detailed illustrations of them.

• Journal of Species Research
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• 제5권3호
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• pp.498-502
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• 2016

Four new Korean records of the gammarid (Crustacea, Amphipoda), Grandidierella fasciata Ariyama, 1996; Moolapheonoides acutifalcatus Kobayashi and Ishimaru, 2005; Guernea terelamina Hirayama, 1985; and Gordonodius zelleri (Berge, Vader and Coleman, 1999) were reported from the Korean indigenous species survey project funded by the National Institute of Biological Resources (2014-2015). Each of these species is well accorded with the original description for the species except for some minor morphological differences. The genera Moolapheonoides Barnard, 1974 and Gordonodius Ariyama, 2011 are reported for the first time from Korea.