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Influence of Water Temperature and Salinity on Sand Ejection of Manila Clam, Ruditapes philippinarum
강경호,김재민,김영훈,Kang, Kyoung-Ho,Kim, Jae-Min,Kim, Young-Hun 한국패류학회 2005 The Korean Journal of Malacology Vol.21 No.1
In this study, the influence of water temperature and salinity on sand ejection of Manila clams, Ruditapes philippinarum, was investigated. The result showed that, under different water temperature, the highest quantity of sand ejection was at $20^{\circ}C$, the value of which was 0.091 g, while the smallest one was only 0.058 g at 0$^{\circ}C$. The highest releasing rate, 95.79%, could be seen in $20^{\circ}C$ group, while $0^{\circ}C$ group was the lowest one, 85.29%. Under different salinity, 30 psu group had the highest value, 0.057 g, and 0 psu (freshwater) group was the lowest one, only 0.026 g. At the same time, the highest releasing rate appeared at 25 psu, which was 90%. 0 psu group was the lowest one in releasing rate, 60.47%. According to these results, we recommend that the clams should be placed into the clear seawater with about 25 psu of salinity at near $20^{\circ}C$ to let the clams perform the self-depuration. Better quality of clams containing less impurity in the aquaculture and commerce could be obtained from this pre-treatment.
Gonadal Development and Reproduction in the Trumpet Shell, Charonia sauliae
강경호,김재민,선승찬,김현정,Kang, Kyoung-Ho,Kim, Jae-Min,Seon, Seung-Cheon,Zhuo, Liang Liang,Lim, Sang-Min,Kim, Hyeon-Jeong The Malacological Society of Korea 2009 The Korean Journal of Malacology Vol.25 No.1
This study devised and tested a histological staging system for gonadal development in the trumpet shell, Charonia sauliae, which was collected along the south coast of Jeju Island, South Korea. This paper details for the first time the gonadal development characteristics of C. sauliae. Ovary and testis development in C. sauliae can be roughly divided into five stages: growing, mature, spent, degenerative, and resting. The trumpet shelll has multiple fecundation and fertilization during the spawning season for out-of-step gonadal development in high-temperature and low-salinity environments. Female trumpet shell tended to have larger shells and were more abundant than males (64.26% of all animals collected were female).
강경호,손승찬,김재민,김현정,Kang, Kyoung-Ho,Seon, Seung-Cheon,Kim, Jae-Min,Zhuo, Liang Liang,Lim, Sang-Min,Kim, Hyeon-Jeong The Malacological Society of Korea 2009 The Korean Journal of Malacology Vol.25 No.1
The trumpet shell Charonia sauliae is an endangered and valuable species with potential for aquaculture. For artificial propagation of C. sauliae, the effects of three different food microalgae on the development, growth, and survival rate of the larvae and spat were investigated. For the larval feeding experiments, we utilized six microalgae species as food sources, namely Pavlova lutheri, Tetraselmis suecica, Nannochloris oculata, Isochrysis galbana, Chaetoceros calcitrans, and Phaeodactylum tricornutum; for the larval and spat growth and survival experiments, we utilized T. suecica, C. calcitrans, and P. tricornutum. The results showed that the temporal digestion index (TDI) for the veliger larvae was significantly different for C. sauliae fed the different microalgae species (p < 0.05), that the T. suecica, C. calcitrans, and P. tricornutum cultivars were better suited for larval consumption (p < 0.05), and that the growth and survival of the larvae and spat were significantly influenced by food type, specifically P. tricornutum (p < 0.05). Further research is needed to evaluate the effects of other microalgae species, different algal concentrations, and biochemical composition on the growth and survival of C. sauliae.
가집(歌集) 『해동악장(海東樂章)』의 작품(作品) 수록(收錄) 양상과 편찬(編纂) 특성
강경호 ( Kang Kyung-ho ) 한국어문교육연구회 2007 어문연구(語文硏究) Vol.35 No.4
本考는 『海東樂章』의 여러 特徵的 樣相들에 주목하여 이 가집의 編纂 特性과 그 所用 目的에 대해 살펴보았다. 『해악』은 3種의 異本이 있는데 모두 舊王宮과 관련된 소장 정보를 갖고 있다. 또한 해악에는 歌曲源流系 가집들의 편찬시기를 가늠할 수 있는 「安玟英 序文」이 남아 있고, 『가곡원류』 편찬의 실질적 인물인 安玟英의 時調 작품들이 상당수 수록되어 있다. 특히 안민영의 시조 작품들은 주로 王室 대상의 頌祝 시조(樂章類 시조)들과 안민영 藝人 집단의 주요 구성원이었던 妓生 관련 시조들이 수록되어 있는데, 이러한 작품 수록 양상은 안민영의 개인적 관심과 의도가 깊게 반영된 것이며 이는 다른 가곡원류계 가집과는 변별되는 『해악』만의 差別化된 가집 편집 의식에 의한 것임을 확인할 수 있었다. 요컨대 『해악』은 대원군을 위시한 왕실과 박효관·안민영의 예인 집단 등 특정 향유 범위에서의 所用을 위해 편찬된 가집이다. Haedongakjang is Sijo Anthologies(歌集) that is collecting most works among different versions of Gagokwonryu. An, Min-yeong works have been collected most to this Sijo Anthologies, and An, Min-yeong's preface that can know compilation time of Gagokwonryu has been collected. Also, when Geumokchongbu go through close thing, Hae- dongakjang is Sijo Anthologies that is edited from cultural space connected with Anminyeong or the surrounding persons and is enjoyed. Features of An, Min-yeong work collected on Haedongakjang chapter are first, works of royal family blessing for DaeWongun and the surrounding person. Second, works of Haedongakjang are continuous with Gisaeng who and An, Min-yeong have much private acquaintance. This works talk Sijo Anthologies used in limited extent for specification persons and DaeWongun. Therefore, Haedongakjang give expression to Gagok Sijo Anthologies that put into elegance in group of artists and royal family.
영동군 NFI 및 생태자연도를 이용한 생물종다양성 지도화
강경호(Kang Kyung Ho),허준(Heo Joon),정다정(Jung Da Jung),김도연(Kim Do Yeon),박효근(Park Hyo Kyen) 대한공간정보학회 2010 한국공간정보학회 학술대회 Vol.2010 No.3
본 연구에서는 기후 변화 이후 이슈화되고 있는 생물종다양성의 경제가치를 지도로 표현하기 위해 영동군의 NFI와 생태자연도 자료를 이용하여 생물종다양성 지도화를 수행하였으며, 그 정확도는 3가지 경우에서 모두 70%를 상회하는 결과를 보였다. 이를 통해 생물종다양성 보존 및 관리의 필요성을 인식할 것으로 기대된다.