• 한국의류산업학회지
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• 제9권4호
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• pp.441-444
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• 2007

For the purpose of application to new natural dyestuff, the dyeability of Purple onion shell extract was analyzed. It was dyed in cotton fabric according to various dye weight, dyeing temperature, dyeing time. And the effects of mordanting conditions were examined as color differences and color fastnesses. The dyeaffinities were increased as were increased dye weight, especially 100% owf. The optimum dyeing condition of Purple onion shell extract was 40minutes at $60^{\circ}C$. The dyeaffinity was increased at pre-mordanted condition, and color difference was increased distinctly at post mordanted condition. The hue of all mordanted cotton fabrics changed into Yellow where as non mordanted cotton fabric was Red. The color fastnesses of mordanted cotton fabrics were generally not so god, but light fastness was improved in post-Cu mordanted fabric.

• 한국패류학회지
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• 제30권4호
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• pp.409-413
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• 2014

본 연구는 북방전복의 보라색패각색의 유전적 지배를 명확히 파악하는 것을 목적으로 하였다. 환경적 요인과 유전적 요인을 명확히 구분하기 위하여 모든 실험구는 같은 사료를 공급하여 실험 하였으며, 또한 동시에 생산된 4가계를 혼합사육한 후 microsatellite DNA를 이용하여 친자확인으로 가계를 분리하여 가계간의 패각색의 분리를 확인하였다. 그 결과, 교배형태가 ♀Gr ${\times}$ ♂Gr (GG type), ♀Pu ${\times}$ ♂Gr (PG type) 및 ♀Gr ${\times}$ ♂Pu (GP type)의 경우 모든 자식개체의 패각색은 녹색으로 나타난 반면, ♀Pu ${\times}$ ♂Pu (PP type)의 교배구의 모든 자식개체는 보라색패각형으로 나타났다. 따라서 패각색 형태는 녹색이 우성, 보라색이 열성형질로 가정할 경우 패각색의 표현형 분리의 설명이 가능하며, 보라색패각색의 유전지배는 1개의 유전자좌에 대하여 2개의 대립유전자에 의해 결정된다고 생각된다.

• 수산해양기술연구
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• 제40권3호
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• pp.176-181
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• 2004

피뿔고동(통칭 소라) 통발의 망목선택성 및 적정 망목을 추정하기 위하여 2003년 6월 27일${\sim}$6월 29일까지 전북 군산시 말도 인근 해역에서 시험조업을 실시하였다. 시험어구는 망목 35mm, 50mm 및 65mm의 3종류의 그물감을 씌운 통발을 교호로 각각 70개씩 210개를 1개조로 구성하여 2개조를 사용하였으며, 망목선택성 곡선의 분석에는 Kitahara(1968)의 방법을 이용하였다. 그 결과를 요약하면 다음과 같다. 1. 피뿔고동 통발의 시험조업 결과 총어획미수는 1,682마리였으며, 피뿔고동 1,268마리 (75.4%), 배꼽고동 225마리 (13.4%), 쥐노래미 113마리 (6.7%), 기타 76마리 (4.5%) 등이었다. 2. 피뿔고동의 최대 각고/망목(max. 1/m)의 값은 1.79로 추정되었다. 3. 50% 선택구간에 대한 각고/망목(max. 1/m)의 값은 1.79로 추정되었다. 3. 50% 선택구간에 대한 각고/망목(1/m)의 값은 1.24${\sim}$2.72으로 추정되었으며, 그 선택폭은 1.48이었다. 4. 피뿔고동의 어획금지체장(각고) 50mm에 대한 적정 망목은 40.3mm로 추정되었으며, 피뿔고동의 50% 선택각고 범위는 50.0${\sim}$109.6mm로 나타났다.

• 한국패류학회지
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• 제25권3호
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• pp.189-196
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• 2009

본 연구는 2004년 2월부터 2005년 1월전라북도 군산시 고군산군도에서 통발어구로 채취된 피뿔고둥을 조사하였다. 피뿔고둥의 뚜껑에 나타난 윤문은 년 1회 형성되며 주 윤문 형성시기는 7월에서 8월로 조사되었으며, 초륜 형성기간은 13개월(1.08년)로 나타났다. 각고(SH)에 대한 각폭(SW)의 성장식은 SW = 0.7867 SH - 6.3988 ($R^2$ = 0.8604), 총중량(TW)의 상대성장식은 TW = 0.0000626 $SH^{3.206}$ ($R^2$ = 0.8324)과 같이 나타낼 수 있었다. 연령(t)에 대한 각고(SH)와 총중량(TW)의 von Bertalanffy 성장식은 다음과 같다. $SH_t=199.653(1-e^{-0.104(t+2.478)}$ $TW_t=1484.105(1-e^{0.104(t+2.478)})^{3.206}$.

• 한국수산과학회지
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• 제19권5호
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• pp.446-452
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• 1986

권패인 피뿔고둥 및 전복을 시료로하여 지질을 추출한 다음 규산 column chromatography에 의해서 중성지질, 당지질 및 인지질로 분획하고, TLC scanner, TLC 및 GLC를 이용하여 총지질의 지방산조성, 중성지질, 당지질 및 인지질의 지방산조성 그리고 구성하는 지질성분의 함량과 그 지방산조성을 분석하여 비교${\cdot}$검토하였다. 각시료의 총지질의 함량은 피뿔고둥이 $0.5\%$, 전복이 $0.4\%$로 나타났으며, 중성지질함량은 피뿔고둥과 전복에서 각각 $50.7\%,\;55.8\%$, 당지질은 $3.4\%,\;6.0\%$, 그리고 인지질은 $44.2\%,\;38.2\%$를 각각 차지하였다. 총지질의 주요 지방산은 피뿔고둥의 경우 eicosapentaenoic acid($19.30\%$), eicosenoic acid ($12.10\%$) 및 palmitic acid ($11.77\%$)였고, 전복에서는 palmitic acid($14.21\%$)가 주성분을 이루고 있었다. 특히 피뿔고둥은 polyene 산함량이 $41.22\%$로서 많은 비중을 차지하였다. 중성지질을 구성하고 있는 지질조성은 free steral, 유리지방산, triglyceride, hydrocarbon & esterified sterol등이었으며, 그 밖에 미확인물질도 상당량 포함되었다. 중성지질의 지방산조성을 살펴보면, 피뿔고둥의 경우 eicosapentaenoic acid($18.60\%$), palmitic acid ($14.90\%$) 및 eicosenoic acid($14.76\%$)가, 전복에서는 palmitic acid ($28.l2\%$), oleic acid ($20.50\%$) 그리고 myristic acid ($12.50\%$)가 주요지방산이었고, 전복에서는 docosahexaenoic acid가 검출되지 않았다. 당지질의 주요 지방산조성을 살펴보면 피뿔고둥에서는 eicosapentaenoic acid ($17.57\%$), stearic acid ($13.26\%$) 및 arachidonic acid ($11.24\%$)가 주성분을 이루고 있었고, polyene산함량 ($51.18\%$)이 많았다. 전복에서는 stearic acid ($12.10\%$), myristic acid ($12.75\%$) 및 arachidonic acid ($10.64\%$)가 주요 지방산이었다. 피뿔고둥의 인지질을 구성하는 주요 지방산은 eicosapentaenoic acid($20.18\%$), palmitic acid($11.26\%$) 및 eicosenoic acid($10.90\%$)였고, 전복에서는 palmitic acid($21.10\%$), eicosapentaenoic acid($12.90\%$) 및 oleic acid($11.13\%$)가 주요 지방산이었다.

• 수산해양기술연구
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• 제50권1호
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• pp.83-88
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• 2014

A new shell divider was manufactured according to the principle of the lever in order to improve working efficiency in collecting the gonad of Sea Urchin, Anthocidaris crassispina, around the coast of jeju. It was composed of three parts of a pair of handles for grasping power, a fulcrum and a pair of knives for action with 21cm in length and 13cm in width. The operating efficiency of the shell divider was tested out in three place of Jeju coast. Statistical significances of differences of working time between test groups were calculated according to the t-test with the level of significance. In dividing the shell of sea urchin, the average of about 3 seconds of working time by the shell divider was less than that by a knife. At the result of t-test, the statistical significance in the working time existed between the divider group and the knife group. On the other hand, the working time among the divider operators showed no significant differences. It is concluded that the shell divider is more efficient than a knife in traditional operating.

• 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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• 제36권6호
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• pp.632-640
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• 2003

Geographic variation in shell morphology of Thais clavigera $(K\"{u}ster)$ (Gastropoda: Muricidae) was investigated using samples collected from 24 sites along the Korean coast. Multivariate statistical analysis was applied to 9 morphometric and 4 categorical variables. The shells of T. clavigera were classified into two distinct morph types (Type-W and -E). Temperature and salinity of the sampling sites were significantly correlated with the incidence of morph types. Relative abundance of Type-W (thin, yellowish brown shell with triangular nodules) was positively correlated with temperature and negatively correlated with salinity. In contrast, relative abundance of Type-E (thick, dark purple shell with round nodules) was negatively correlated with temperature and positively correlated with salinity. Possible correlation between environmental factors (temperature and salinity) and morphological variations in the shells were discussed.

• 한국패류학회지
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• 제9권2호
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• pp.1-15
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• 1993

The reproductive ecology of the purple shell, Rapana venosa was investigated by the histological observations on depositions of the egg capsules, and hatching of larvae in the laboratory and the subtidal zone of the vicinity of piung-do, Chollabud-do, west coast of korea, for one year from June 1992 to May 1993. The results are summarized as follows:1. Rapana venosa is dioecious in sex. The ovary is composed of a number of ovarian lobules, and the testis comprises a number of ovarian lobules, and the testis comprises of gonads could be classified into 4 stages in males and 5 stages in females: 1) growing stage(in female subdivided into 2 stages of early and late growing stage). 2)mature stage. 3)spent stage or copulationstage. 4)rdcovering stage. The early growing stage in females of the purple shell was in September through February, late gorwing stage was in October to March, mature stage was in September to January, mature stage was in September to July, copulation stage was in Februaty to June and recovering stage in April to October.3. Spawning occurred 3-4 times at intervals of 1-3 days, and completed within 10 days from the beginning of spawning during the spawning season of the year.4. From the results of laboratory and field observations, egg masses are composed of a number of egg capsules, egg masses are occurred from May to late August, and in mid August depositions of egg mass in composed of 90-113 egg capsules, fecundity in an egg capsule was ranged 984 to 1,241 eggs(average 1,096 egg). Therefore, fecundity in total egg capsules spawned per individual during the spawning season is estimated as approximately 320,000 to 450,000 egges.5. The incubation period during deposition of an egg capsule to hatching larvad tood 17 days at 18.3-20.4%C(water temperature)and 1.021 (specific gravity fo sea water).

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 1997년도 수산관련공동학술대회발표요지집
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• pp.167.1-168
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• 1997