• 한국환경과학회:학술대회논문집
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• 한국환경과학회 2002년도 The 10th Anniversary of KENSS International Workshop
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• pp.99-102
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• 2002

• 한국동물학회:학술대회논문집
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• 한국동물학회 1999년도 공동 춘계학술대회
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• pp.49.2-49
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• 1999

No Abstract, See Full Text

• 복식
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• 제22권
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• pp.193-204
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• 1994

In this study the characteristics of Korean furs and peltry were discussed in the terms of usage and kinds from the literature survey of the relevant references, The following con-clusions were deduced. From Ancient to Koryo a kind of acient of Korea a lot of furs and peltry were produced and dressed. The leopad of Gochosun Korea was worthy of gold as an expensive goods to China. red dyed pelt of Silla Korea was traded with China and that pelt dyeing tech-nology of that pelt developed. The marten of Koryo was trade to Arabia and an otter skin to Kum Dynasty as loved goods. Korean furs and peltry made a reputation and were used for trading goods with China Japan and Arabia. Tratment technology in Korea became known to foreign country. There is another record that sheep and camels were offered to Koryo by around countries, And that Koryo employed men of Kum Dynasty as a shepherd. From ancient to Koryo Korea had had many kinds of furs of peltry as using goods such as leopard mart otter skin panther bear, manchurian wapili, fox, porpoise rat, mankey, horse, pig, wild bear, goat, cow, cat, dog, tiger, deer, raccoon dog and so on.

• 환경생물
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• 제24권2호
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• pp.160-165
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• 2006

The purpose of this study was to ascertain the prey composition and utilization of the Eurasian otter, Lutra lutra, in the ecosystem conservation region of the Seomjin River. The study was conducted for a 12-month period from March 2003 to February 2004 by spraints analysis and an investigation using artificial holts. We found seasonal variation in the number of spraints and composition of prey items. Fish were the main prey items throughout the period (82%), and other prey items included birds (14%), amphibians (2%) and arthropods (1%). In addition to prey identification, we investigated habitat utilization by otters through spraints distribution. The traces of otters were discovered in five of the six total artificial holts. However, the utilization of the artificial holts in the study area seemed to be limited as evidenced by the low frequency of traces in the holts.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2006년도 추계학술대회 및 정기총회
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• pp.89-89
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• 2006

• 한국수산과학회지
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• 제47권3호
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• pp.264-273
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• 2014

To investigate species composition and seasonal variation of demersal organisms in the coastal waters off the Taean peninsula, otter trawl surveys were conducted from April 2010 to January 2011. A total of 75 species were collected, including 44 species of Pisces, 19 species of Crustacea, 6 species of Cephalopoda, 4 species of Gastropoda, and 1 species each of Bivalvia and Echinoidea. The dominant species in each season were Palaemon gravieri in spring, Charybdis bimaculata in summer, Loligo japonica in autumn, and Crangon hakodatei in winter. The number of species, individuals and biomass were highest in autumn and lowest in winter. The diversity index was highest in summer and lowest in winter. The dominance index was highest in winter and lowest in summer. The richness index was highest in autumn and lowest in winter. The evenness index was highest in summer and lowest in autumn. A cluster analysis showed that demersal organisms were divided into two groups; spring and winter organisms (Group 1) and summer and autumn organisms (Group 2). We detected a significant difference (P<0.05) between these groups, mainly owing to Platycephalus indicus, Repomucenus koreanus, and Paralichthys olivaceus within Pisces: Trachysalambria curvirostris, Metapenaeopsis dalei, P. gravieri, and C. hakodatei within Crustacea: and L. japonica within Cephalopoda.

• 한국수산과학회지
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• 제44권5호
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• pp.506-515
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• 2011

To elucidate demersal organism community structure, abundance, and biomass by period and region in the Uljin marine ranching area, otter trawl surveys were conducted at six stations from February 2008 to December 2009. During the survey period, a total of 118 species was collected in the Uljin marine ranching area, including 76 pisces, 27 mollusca and 15 crustaceans. The average abundance of individuals was 806 ind./$m^2$ and average biomass was 31,853 g/m2. The numbers of species, species richness, individuals per area and biomass per area were higher in 2009 than in 2008. Cluster and MDS analysis, based on a Bray-Curtis similarity matrix of fourth root transformed data of number of species and individuals per area, showed division into two different groups of demersal organisms in 2008 (Group 1) and one demersal organism community in 2009 (Group 2). From cluster and MDS analysis using the similarity of the demersal community among six stations, the Uljin marine ranching area was divided into Group A (St. 2, St. 4, St. 5 and St. 6) and Group B (St. 1 and St. 3).

• 한국습지학회지
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• 제14권3호
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• pp.413-418
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• 2012

본 연구는 수달이 선호하는 서식환경 알아보기 위하여 수달의 배설물을 이용한 서식 환경 분석과 육안 분석 방법을 수행하였다. 강원도 홍천군 화촌면 일대의 홍천강 상류 수계인 내촌천과 군업천 두 하천을 연구지역으로 선정하였다. 2009년5월, 6월, 7월, 8월, 9월, 10월, 11월, 2010년 11월 총 8회의 조사기간 동안 총 478개의 수달의 서식흔적 (배설물, 분비물, 족흔 등)을 발견하였다. 수달의 서식흔적이 발견되는 지점의 하천환경은 대체로 하천의 깊이가 얕은 곳(0.5-1m)과 유속이 느린 곳(5m/sec)으로 나타났다. 또한, 바위와 기반암에서 많은 서식흔적을 발견하였지만, 제방과 같은 인공구조물에서는 거의 서식흔적을 발견하지 못하였다. 이러한 수달의 서식환경과 식이물 분석을 통한 수달의 생태학적 연구는 수달 개체군의 보전과 수달 서식지의 보호를 위한 기초자료로 유용하게 활용될 수 있을 것이다.

• 한국어류학회지
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• 제10권1호
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• pp.11-23
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• 1998

1989년 5월부터 1990년 4월까지 매월 남해도 연안해역에서 소형 otter trawl을 이용하여 어류를 채집하여 종조성 및 계절 변동을 분석하였다. 조사기간 동안 총 64종의 어류가 채집되었다. 줄망둑(Acentrogobius pflaumii), 도화망둑(Chaeturichthys hexanema), 수염문절(Chaeturichthys sciistius), 청멸(Thryssa kammalensis), 실양태(Repomucenus valenciennei)가 많이 채집되었는데, 이들은 전체 개체수의 66.5%, 그리고 생체량의 34.9%를 차지하였다. 그 다음으로 주둥치(Leiognathus nuchalis), 붕장어(Conger myriaster), 병어(Pampus echinogaster), 참서대(Cynoglossus joyneri), 민태(Johnius grypotus), 칠서대(Cynoglossus interruptus), 열동가리돔(Apogon lineatus), 보구치(Argyrosomus argentatus), 밴댕이(Sardinella zunasi) 순으로 채집되었다. 본 조사해역에서 채집된 어류는 대부분이 체장 10cm 이하의 소형 어종이거나 대형 어종의 유어들로 구성되어 있었다. 남해도 연안해역의 어류 군집은 뚜렷한 계절 변동을 보였는데, 채집 어종수는 10 ~1월사이에 많았으며, 2~3월에 적었다. 채집 개체수 및 생체량은 4월과 9월에 높은 값을 보였으며, 수온이 낮은 2~3월에는 채집 어종수, 개체수 및 생체량 모두 낮은 값을 보였다.

• 한국환경복원기술학회지
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• 제17권1호
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• pp.111-122
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• 2014

The provided habitat of many services from natural capital is important. But because most ecosystem services tools qualitatively evaluated biodiversity or habitat quality, this study quantitatively analyzed those aspects using the species distribution model (MaxEnt). This study used location point data of the goat(Naemorhedus caudatus), marten(Martes flavigula), leopard cat(Prionailurus bengalensis), flying squirrel(Pteromys volans aluco) and otter(Lutra lutra) from the 3rd National Ecosystem Survey. Input data utilized DEM, landcover classification maps, Forest-types map and digital topographic maps. This study generated the MaxEnt model, randomly setting 70% of the presences as training data, with the remaining 30% used as test data, and ran five cross-validated replicates for each model. The threshold indicating maximum training sensitivity plus specificity was considered as a more robust approach, so this study used it to conduct the distribution into presence(1)-absence(0) predictions and totalled up a value of 5 times for uncertainty reduction. The test data's ROC curve of endangered mammals was as follows: growing down goat(0.896), otter(0.857), flying squirrel(0.738), marten(0.725), and leopard cat(0.629). This study was divided into two groups based on habitat: the first group consisted of the goat, marten, leopard cat and flying squirrel in the forest; and the second group consisted of the otter in the river. More than 60 percent of endangered mammals' distribution probability were 56.9% in the forest and 12.7% in the river. A future study is needed to conduct other species' distribution modeling exclusive of mammals and to develop a collection method of field survey data.