• Title/Summary/Keyword: 유어

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A Study on the Evaluation of Economic Value of the Gulf of Mexico Recreational Red Grouper Fishery (여행비용모형 분석을 통한 유어(遊漁)활동의 경제적 가치 추정 -미국 멕시코만 Red Grouper 유어부문을 대상으로 -)

  • Kim, Do-Hoon
    • The Journal of Fisheries Business Administration
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    • v.36 no.2 s.68
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    • pp.121-134
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    • 2005
  • In order to evaluate the effectiveness of management measures and to provide policy suggestions for the allocation of total allowable catch between recreational and commercial sectors, the economic value of red grouper recreational fishery in the United States Gulf of Mexico was estimated using a Travel Cost Method(TCM), Due to the characteristic of count data, a Poisson model(PM) and a Negative binomial model(NBM) were used in the TCM. Results of models showed that the NBM was statistically more suitable than the PM since the overdispersion problem occurred in the PM. Results also indicated all signs of the estimated parameters were as expected and were significant, except for a Boat parameter in both models. Based on the results of NBM, the total economic value of the recreational red grouper fishery was estimated to be $\$698.6$ and the value per trip was $\$179.5$. In addition, the total changes in expected consumer surplus due to changes in catch rates was $ \$42.3$.

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Feeding Habits of Juvenile Lophius litulon in the Coastal Waters of Kori, Korea (고리 주변 해역에서 채집된 황아귀 (Lophius litulon) 유어의 식성)

  • BAECK Gun Wook;HUH Sung-Hoi
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.36 no.6
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    • pp.695-699
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    • 2003
  • We examined the stomach contents of juvenile Lophius litulon, which were collected monthly in the coastal waters of Kori, Korea from January to December, 1996. L. litulon was a bottom feeding carnivore which mainly consumed fish, euphausiids, sagittoids, and shrimp. Its diet also included small quantities of copepods amphipods, and stomatopods. It showed distinct ontogenetic changes in feeding habits. Small individuals (1-2 cm SL) mainly preyed on sagittoids and euphausiids. However, individuals eve, 3 cm SL mainly preyed on fish and shrimp.

First Reliable Record of the Maned Blenny Scartella emarginata (Perciformes: Blenniidae) from Jeju Island, Korea (제주도에서 채집된 청베도라치과(Blenniidae) 갈기베도라치 Scartella emarginata)

  • Kim, Byung-Jik;Endo, Hiromitsu
    • Korean Journal of Ichthyology
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    • v.21 no.2
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    • pp.125-128
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    • 2009
  • Based on a single adult and two juvenile fishes collected from the coastal waters of Jeju Island, Scartella emarginata was redescribed as the first reliable record from Korea. The species is characterized by having a median fringe of cirri on head, short branched supraorbital cirrus, and by lacking canine teeth on both jaws.

Distribution, and length and age composition of Johnius belengeri in the coastal waters of Korea (민태(Johnius belengeri)의 분포, 체장 및 연령조성)

  • Lee, Tae-Won;Song, Hae-Sung
    • Korean Journal of Ichthyology
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    • v.5 no.2
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    • pp.184-193
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    • 1993
  • The distribution, and length and age compositions of Johnius belengeri were studied using samples collected by an otter trawl from the five different coastal waters of Korea ; Asan Bay, Cheonsu Bay, waters off Yeongkwang and Samchonpo, and Yeongil Bay. This fish showed a high density of 1,147 individuals/$10,000m^2$ and predominated in abundance of the demersal fish in the coastal water off Yeongkwang. The mean density was 94 individuals/$10,000m^2$ in Cheonsu Bay and 8-24 individuals/$10,000m^2$ in Asan Bay and in the water off Samchonpo. Few fish were collected from Yeongil Bay. J. belengeri occurred from spring to autumn in the study area and showed a relatively high density in spring or in summer. The fish collected in spring and in summer composed of adults of age group I, II and III. Some juveniles began to occurred in the waters off Yeongkwang and Samchonpo from summer. The fish collected in autumn consisted mainly of the fish of age group 0. It implies that the adults after spawning moved out from the embayments for feeding. but the young fish stayed and grew in the embayments until late autumn when they migrated to the offshore water for wintering.

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Studies on the Development of the Fishing System of Set Net in the Coast of Jeju Island - II. Comparative of Fishing Efficiency of Rectangular Set Net and Pound Net in Fishing Ground - (제주도 연안 정치망 조업시스템 개발에 관한 연구 -II. 조업어장에서의 각망과 낙망의 어획성능 비교-)

  • 김종범;김석종;김병엽
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.37 no.3
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    • pp.232-239
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    • 2001
  • For the purpose of providing the basic data on the improved fishing gear and the man power saving, which contribute to enhance fishing efficiency of set net in the coast of Jeju Island, this study analyzed the catch of two fishing place for the past 3 years in order to compare the fishing efficiency between rectngular set net and pound net, which have been used for fishing with being attached to the set net fishing place in coast of Jeiu Island, Thereby the result is as follows ; 1. When using pound net, the total amount of catch during 1997 to 1999 was 2 times more than that of when using rectangular set net. 2. When using Pound net, the catch of squid, mackerel, rabbit fish and Yellow tail during 1997 to 1999 was 1.8 times more than that of when using rectangular set net.. 3. In case of rectangular set net, CPUE marked 10.1㎏ with horse amckerel, 20.5㎏ with squid, 18.0㎏ with rabbit fish and 2.2㎏ with Yellow tail, and in case of pound net, CPUE marked 57.5 ㎏ with horse mackerel, 30.0㎏ with squid, 25.0 with rabbit fish and 4.7㎏ with yellow tail, and on the whole CPUE of poind net marked higher. 4. In case of rectangular set net, the catch ratio for fishing operation marked 64% with horse mackerel, 79% with squid, 39% with rabbit fish and 14% with yellow tail, and in case of pound net, the catch ratio fishing operation marked 18% with horse mackerel, 85% with souid 40% with rabbit fish and 14% with yellow tail, and accordingly it showed the result that the catch ratio for fishing operation was higher with the case of rectangular set net, but higher with the case of pound net.

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Tide-pool Fishes from Saemangeum Waters (새만금 해역 조수 웅덩이의 어류)

  • Choi, Youn;Lim, Hwan-Cheol;Ra, Hye-Kang;Yang, Jae-Sam;Choi, Kang Won
    • Korean Journal of Ichthyology
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    • v.17 no.2
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    • pp.142-147
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    • 2005
  • To research changes in the fish community of intertidal zones in relation to the construction of the Saemangeum tidal embankment, fishes were collected in the tide pools of Naechodo, Gunsan-si, and of Haechang, Buan-gun in Jeollabuk-do, every month from December 2002 to October 2004. Based on the fishes collected and data from previous studies show that in the tide pools of Haechang, the number of species decreased, and the dominant species is Tridentiger trigonocephalus, as before. However, in the tide pools of Naechodo, the number of species decreased, and the dominant species changed from T. trigonocephalus to Synechogobius hasta. Favonigobius gymnauchen, which inhabits sand-beds, decreased remarkably. Meanwhile, in the intertidal zone of Haechang, young black porgy were caught in large quantities, while in the intertidal zone of Naechodo, young Acanthopagrus schlegelii and Lateolabrax japonicus, which had been caught in a large amounts between 1994 and 2000, were not caught. The results are thought to show that the intertidal zone of Naechodo, Gunsan-si, had more deposits by tide flats than that of Haechang, Buan-gun, which drastically changed the habitat of its fish community.

Requirement of Young Tiger Puffer (Takifugu rubripes) for Essential Fatty Acids and Its Optimal Level (자주복 유어의 필수지방산 요구 및 적정함량)

  • Han Kyung-Nam
    • Journal of Aquaculture
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    • v.9 no.4
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    • pp.353-361
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    • 1996
  • The objective of this study was to investigate the essential fatty acids requirement and its optimal level in dietary for young of tiger puffer. The young puffer fish used in feeding trial were average body weight 3.45g. Fish were randomly divided into 11 groups containing 30 fish each in 200 ${\ell}$ tank and reared for 8 weeks at ambient temperature. In basal diets, defatted squid meal, casein-Na and activated gluten were used as the dietary protein source, dextrin and ${\alpha}$-starch (gelatinized starch) as the digestible carbohydrate source and beef tallow as the lipid source. Five fatty acids added to diet were linoleic acid (LNA), linolenic acid (LNA), eicosapentaenoic acid (EPA) ,docos-ahexaenoic acid (DHA) and n-3 HUFA. Among that, the supplement of LA and LNA were $1\%$ of total composition of diet, respectively, and EPA, DHA and n-3 HUFA ranged from $0.3\~1\%$ level. Growth and feed efficiency were measured to the interval of 2 weeks, and analyzed fatty acids composition of diet and liver by GCL. As a result of 8 weeks experiment, predominant growth were shown in $0.5\~1\%$ n-3 HUFA and $0.5\%$ DHA than others (P<0.05). In comparison of efficiency among EPA, DHA and n-3 HUFA groups, the most results were revealed in n-3 HUFA and the least in EPA. The adding effect was shown in EPA by increasing the fatty acids content from 0.5 to $1\%$ in diet. However, sudden decline and steady state in growth were observed in $1\%$ DHA and $1\%$ n-3 HUFA, respectively. The feeding efficiency and protein efficiency ratio were high in n-3 HUFA groups and $0.5\%$ DHA. Consequently, it is assumed that young puffer requires n-3 HUEA both EPA and DHA as essential fatty acids. The optimal content in diets are about $0.5\%$ of HUFA or DHA.

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장개빈(張介賓)의 의학윤리(醫學倫理) 사상(思想)에 대한 고찰(考察);관어장개빈의학윤리사상적연구(關於張介賓醫學倫理思想的硏究)

  • Kim, Yong-Jin
    • Journal of Korean Medical classics
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    • v.19 no.4
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    • pp.126-135
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    • 2006
  • 목전(目前), 수착여의학상관적현대과학기술적급속발전(隨着與醫學相關的現代科學技術的急速發展), 의료계대의학윤리적요구월래월고(醫療界對醫學倫理的要求越來越高), 의학윤리사상재동양주요원요의생적윤리이발전기래(醫學倫理思想在東洋主要園繞醫生的倫理而發展起來). 우기도료명대(尤其到了明代), 장개빈근거(張介賓根據) "소문(素門) 방성쇠론(方盛衰論)"중(中)"부실인정(不失人情)"문장(文章), 제출료인환자여감호인이급의자지간각유기구체정황(提出了因患者與監護人以及醫者之間各有其具體情況), 소이필수분별가이타선료해(所以必須分別加以妥善了解), 즉주요원요의생윤리사상언급환자혹감호인적구체정황(卽主要園繞醫生倫理思想言及患者或監護人的具體情況). 종관기내용가지(綜觀其內容可知), 재환자방면(在患者方面), 장개빈인위의생응사선응예지환자적각종정황(張介賓認爲醫生應事先應預知患者的各種情況), 여약환자심리존유측시의생능력적상법(如若患者心里存有測試醫生能力的想法), 나마치료효과취불회호. 재감호인방면(在監護人方面), 장개빈인위유어개인적친분혹이해관계(張介賓認爲由於個人的親分或利害關係), 왕왕회사환자화의생면임군경(往往會使患者和醫生面臨窘境), 저일점응가이주의(這一點應加以注意). 재의생방면(在醫生方面), 장개빈인위의생응숙지자신적의학능력(張介賓認爲醫生應熟知自身的醫學能力), 불능기편환자(不能欺編患者), 야불능설비방기타의생적화(也不能設誹謗其他醫生的話). 령외, 장개빈종기보편성의학윤리사상(張介賓從其普遍性醫學倫理思想), 인위의사응구비총명적자질(認爲醫師應具備聰明的資質), 필수유일과열애생명적심(必須有一顆熱愛生命的心), 이차환인위의생응다독의경(而且還認爲醫生應多讀醫經), 다배양사(多拜良師), 정확지장악약물급진단치료질병적방법(正確地掌握藥物及診斷治療疾病的方法).

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양인(陽人) 해역병(解?病)과 영양결핍성(營養缺乏性) 질환(疾患)의 상관성(相關性) 연구(硏究) -관우태양인해역병여영양결핍성질병적상관성연구-

  • Lee, Pil-U;Yun, Chang-Yeol
    • Journal of Korean Medical classics
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    • v.18 no.4 s.31
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    • pp.134-144
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    • 2005
  • 통과대해역병재${\ulcorner}$동의수세보원(東醫壽世保元)${\lrcorner}$중적상관내용여현대의학적비교연구(中的相關內容與現代醫學的比較硏究), 가류추출여하결론(可類推出如下結論): ${\ulcorner}$내경(內經)${\lrcorner}$중출현적해역병, 재척부혹맥적진단법급자침적류오인식상(在尺部或脈的診斷法及刺針的謬誤認識上), 언급도해역병. 저시인위파열(這是因爲把熱), 혈소(血少), 비토허(脾土虛), 상화작위료기근원적연고(相火作爲了其根源的緣故). 해역병적증상시‘한불한(寒不寒), 열불열(熱不熱), 약불약(弱不弱), 장불장(壯不壯)’급(及)‘소삭, 행산, 불능거(不能去)’ 재(在)${\ulcorner}$동의수세보원(東醫壽世保元)${\lrcorner}$중칭위‘기병가유(其病可愈)’, 이종현대의학적각도진행연구결과(而從現代醫學的角度進行硏究結果), 인위유류사여말초신경적병증(認爲有類似與末稍神經的病證). 종현대의학적원인래간(從現代醫學的原因來看), 유어단백질(由於蛋白質)-능량적영양결핍화유생소급미량원소적부족(能量的營養缺乏和維生素及微量原素的不足), 출현말초신경병증(出現末稍神經病證). 재(在)${\ulcorner}$동의수세보원(東醫壽世保元)${\lrcorner}$적약물중(的藥物中), 야유능량화유생소급미량원소등성분(也有能量和維生素及微量原素等成分), 소이인위대태양인적처방(所以認爲對太陽人的處方), 종영양학각도진행분석연구시유가치적(從營養學角度進行分析硏究是有價値的).

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Estimating the Economic Value of Recreational Fishing in the Jeonnam Marine Ranching Area (여행비용모형을 이용한 전남 바다목장 해역 유어활동의 경제적 가치 추정)

  • Seo, Ju-Nam;Kim, Do-Hoon;Kang, Sung-Kyung
    • The Journal of Fisheries Business Administration
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    • v.43 no.2
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    • pp.41-49
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    • 2012
  • This study aimed to estimate the economic value of the recreational fishing in the Jeonnam marine ranching area as a part of the total socioeconomic evaluation of the Jeonnam marine ranching program. A travel cost method was applied to the estimation of economic value of the recreational fishing in the Jeonnam marine ranching area and input variables included annual fishing trip days, average travel cost per trip, average catch amount, monthly income, marriage, age, and personal perception on the marine ranching program. In the analysis, due to its characteristic of count data, both poisson model and negative binomial model were used. Model results indicated that a negative binomial model was statistically more suitable than the poisson model as the overdispersion problem occurred in the poisson model. All signs of the estimated parameters were estimated as previous studies showed. Based on the results, the economic value per trip of the recreational fishing in the Jeonnam marine ranching area was estimated to be 145,000 won and the annual total economic value of the recreational fishing in the Jeonnam marine ranching area was analyzed to be 2,514,000 won. In addition, the change of total value by catch rate showed that the economic value could be increased by 180,900 won as the catch increased by one kilogram.