• Journal of Microbiology
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• 제33권3호
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• pp.178-183
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• 1995

The recombinant plasmid of pCU103 constructed by cloning pcbCD genes in pBluescript SK(+) was studied for the effect of temperature on its persistence in different waters by the methods of electrophoresis, Southern hybridization, quantification, and transformation. The plasmid was very rapidly degraded out in non-sterile FW water without regards to water temperature, probably due to the effect of biochemical factor such as nucleases. The pCU103 was most persistent at 4$^{\circ}C$ in any water environments, moderately persistant at 15$^{\circ}C$ but least stable at 3$0^{\circ}C$ such results could be explained by the facts that hydrogen bonds in double-stranded plasmid DNAs become unstable and that nucleases are activated by increasing temperature. The intact structure of pCU1-3 was generally observed by gel electrophoresis under the conditions which the plasmid should be 2.0 ng/$\mu\textrm{l}$ or higher in concentration and that about 10$^2$ CFU/ml or more transformant cells should be recovered.

• Fisheries and Aquatic Sciences
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• 제9권2호
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• pp.83-90
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• 2006

This paper provides descriptions and illustrations of two hippolytid shrimps, Eualus macilentus ($Kr{\phi}yer$, 1841) and E. leptognathus (Stimpson, 1860). This is the first record of E. macilentus collected in Korean waters; it was found in the East Sea at a depth of 300 m. Eualus leptognathus has been collected previously from various locations in southern and eastern Korea, but no detailed description has been reported. This study provides a key to the six species of Eualus in Korean waters.

• 한국해양공학회지
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• 제13권4호통권35호
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• pp.143-150
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• 1999

Multipurpose fisheries base was conceptually designed to establish marine ranching system in the coastal waters around Tongyoung, southern sea of Korea. Fisheries base for marine ranching system has integrated various facilities which were required for the process of spawning, rearing, training, releasing, monitoring and catching functions. This base has five steel piles for supporting upper structure and systems. Four steel piles are surrounded by circular net pen made by steel wire, they have the function of the protection against fouling for pile and scouring for bottom soil as well as secondary rearing and short stocking. We can use the last pile to moor a ship and access to the base. Principal structure with steel piles is designed by optimization technique considering design external forces in the coastal waters of return period of 50 years. Design optimization Problem is formulated for this base. Optimal design of multipurpose fisheries base is numerically investigated by sequential quadratic programming method.

• ALGAE
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• 제27권2호
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• pp.95-108
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• 2012

Using genetic sequencing (COI-5P, LSU, $rbc$L) to elucidate their phylogenetic positions and then morphological characters to distinguish each from existing species, three procumbent species, including two novel species, from warm temperate Northern Hemisphere waters are added to the recently resurrected genus $Halopeltis$ J. Agardh: $H.$ $adnata$ (Okamura) comb. nov. from Korea, $H.$ $pellucida$ sp. nov. from Bermuda and $H.$ $willisii$ sp. nov. from North Carolina, USA. Prior to these reports, the genus was confined to the Southern Hemisphere and tropical equatorial waters of the Northern Hemisphere although the latter records lack molecular confirmation. These three additional species join the six known species presently residing in $Halopeltis$.

• Animal Systematics, Evolution and Diversity
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• 제31권3호
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• pp.191-200
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• 2015

Two porcelain crab species, Aliaporcellana pygmaea (De Man, 1902) and Lissoporcellana nakasonei (Miyake, 1978), are reported here for the first time from Korean waters based on specimens collected from Jeju Island, Korea. The genus Aliaporcellana Nakasone and Miyake, 1969, and Lissoporcellana Haig, 1978 are also reported here for the first time in Korea. Aliaporcellana pygmaea has a wide distribution. The specimen reported here is the most northern record of this species. While, Lissoporcellana nakasonei, associated with anthozoans, was known for distributing range from New Caledonia to southern Japan. As a result, the distribution rage of L. nakasonei is changed to Korea. Now, 12 species of porcelain crabs have been reported in Korean waters.

• Animal Systematics, Evolution and Diversity
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• 제12권1호
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• pp.67-77
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• 1996

우리나라의 서해와 남해연안에서 1995년 5월 10월 사이에 채집된 히드라해파리는 2 목 4과 4종으로 동정, 분류되어 재기재와 함께 보고한다. 3종: Cladonema radiatum Dujardin, 1843: Eirene menoni Kramp, 1953 및 Gonionemus vertens A. Agassia, 1862는 한국미기록종이고 Turritopsis nutricula(McCrady, 1856)의 폴립은 한국해역에서 이미 알려 졌으나 해파리는 처음 보고된다.

• 환경생물
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• 제21권4호
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• pp.422-427
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• 2003

The spatio-temporal distribution of four coexisting acartiid species in two subgenera Acartiura (Acartia hongi and A. omorii) and Odontacartia (A. erythraea and A. pacifica) was examined at seven stations in the southwestern waters of Korea, between January to December 1998. A. hongi occurred dominantly in the northern regions from winter to spring while A. omorii predominated in the southern regions in spring and early summer when the more saline (> 33.0 psu) and high chlorophyll-$\alpha$ concentration water mass appeared. With the increase of temperature (> $20^{\circ}C$), however, both species disappeared and then replaced with A. erythraea and A. pacifica. A. erythraea (rare species), appeared in the middle regions where the high chlorophyll-$\alpha$ concentration ($3{\mu}g\; I^{-1}$) in the summer, while A. pacifica was abundant in all regions through summer and fall. It is suggested that the seasonal succession of the genus Acartia was subgenus-specifically affected by environmental factors such as temperature, salinity and chlorophyll-$\alpha$ concentration.

• 한국수산과학회지
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• 제21권2호
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• pp.105-112
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• 1988

1986년 3월부터 8월사이에 남해안 일대에서 채집된 우리나라 미기록어류 5종을 분류하였다. 이들 종들은 Neoscopelus microchir Matsubara, Ariomma indica Day, Cubiceps squamiceps Lloyd, Malakichthys elegans Matsubara et Yamaguti 및 Bembrops caudimacula Steindachner로 분류 동정되어 각각 미올비늘치, 보라기름눈돔, 동강연치, 은눈통바리 및 꼬리점눈통이 둥의 한국명으로 명명되었다.

• Animal Systematics, Evolution and Diversity
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• 제26권3호
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• pp.329-332
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• 2010

A hippolytid shrimp, Lebbeus grandimana, is described from the southern part of the East Sea and this is the first record of the species in Korea. The genus Lebbeus of the family Hippolytidae currently comprises four species in Korea. A key to identify the four species of the genus Lebbeus from Korean waters is provided.

• Ocean and Polar Research
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• 제38권4호
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• pp.295-301
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• 2016

The nomenclature of the sea nettle jellyfish from Korea was initially described as Dactylometra quinquecirrha Agassiz, 1862. However its identity has been questioned on the basis of its local distribution and molecular data. Here, we examined morphology and DNA sequences of nuclear rDNA using specimens collected from southern Korean waters in August 2014. Based on morphological characteristics (bell size, umbrella pattern, number of tentacles and lappets) and distribution locality, we reassign the Korean D. quinquecirrha to Chrysaora pacifica (Goette, 1886), and provide a re-description accordingly. The molecular identity of C. pacifica was further confirmed by comparison of nuclear ribosomal DNA sequences.