• 한국해양학회지
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• v.30 no.4
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• pp.250-261
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• 1995

This study was carried out to investigate the distribution of the benthic polychaetous community in Kamak Bay, in summer of 1993. Polychaetes, the dominant faunal group comprising 74.5% of the total number of fauna, consisted of a total of 84 species with a mean density of 112 indiv.m/SUP -2/. The number of species and density were higher in the mouth area of the bay than in the rest of the bay. The most dominant Polychaete was Tharyx sp.(31.9%), followed by Lumbrineris longifolia (27.5%), Chone sp.(4.5%) and Glycera chirori (4.2%). The correspondence analysis revealed that the study area could be divided into four regions. Northeastern channel and southern mouth region of the bay, named Tharyx-Chone assemblage, sustained higher polychaetous density and species number due to the active water exchange with the outer off-sea, whereas northwestern region of the bay had the poorest polychaetous assemblage in the species number and faunal density owing to the blocking water exchange, high organic enrichment in sediment, and low dissolved oxygen content of bottom water. The central region, named Praxillella-Terebellides assemblage and Gly-cera assemblage, was the transition zone between another two region in species composition.

• 발명특허
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• v.35 no.6
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• pp.26-33
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• 2010

본 연구에서는, 방명창의력 증진을 위한 전문 블록(다모블록)개발을 시도하고, 대학생들의 사용성 평가를 통해 통계적 검증이 이루어졌다. 개발된 다모블록은 각 면을 오목과 블록구조로 형성하여, 4면을 자유롭게 결합하는 슬라이드 방식의 특허기술이 적용된다. 결론적으로 개발된 다모블록은 발명교구로 사용될 수 있음은 물론, 발명원리를 발견하고 학생들의 다양한 발명사고 능력개발에 유용한 블록으로 평가된다.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.22 no.1
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• pp.18-30
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• 2017

The East Sea is almost entirely composed of sandy facies, and the facies type is the major factor influencing benthic polychaete communities. There have been few studies of the effects of environmental factors on benthic polychaetes in thermal discharge areas consisting of different sediment types. This study identified the spatial distribution patterns based on the species composition and distribution of benthic polychaete communities, and the environmental factors influencing benthic polychaetes near power plants were investigated. The polychaete communities in the Uljin, Hupo, and Gori coastal areas near the power plants in the East Sea were seasonally investigated from August 2006 to February 2013. As a result, 283 species were collected. The dominant species were Spiophanes bombyx, Magelona japonica, Lumbrineris longifolia, and Sternaspis scutata. Spiophanes bombyx was the dominant species at Uljin and Hupo, but M. japonica was the dominant species at Gori. Two dominant species from the coastal waters of the East Sea, Lumbrineris longifolia and M. japonica, were rare in the power plant water intake or drainage areas. Cluster analysis was performed to divide the study area into groups by the total organic carbon content, sediment grain size and facies patterns. This study suggests that the community structures of polychaetes are more affected by the total organic carbon, grain size of sediment and facies than by disturbance from thermal discharge, which only affected the polychaete community near power plant drainage areas.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.22 no.4
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• pp.189-195
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• 1989

The ecological studies of the benthic polychaetes were carried out in the follow Sea for the period of August 1982 through February 1986. Special emphasis were placed on quantitative species composition and the importance of polychaetes in the benthic community. Polychaete group ranked numerically high, composing $35.1\~46.4\%$ of the total benthos. In the biomass, echinoderms or mollusks showed as a dominant group, but the range of its seasonal variation was very large. Due to the use of sampling gear, the relative importance of polychaetes was somewhat different. The case of a dredge showed a little lower composition rate of polychaetes than a grab one. This result was caused by high density of benthic animals because the dredge would tow only much more surface sediments than the grab sampler. The present studies included a total of 141 species and the representative polychaetes in this area were Spiophanes bormbyx, Ampharete arctica, Geniada maulata, Nephtys caeca, Nothria iridescens.

• Digital Contents
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• no.11 s.162
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• pp.128-137
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• 2006

• Korean Journal of Fisheries and Aquatic Sciences
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• v.12 no.1
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• pp.41-63
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• 1979

한국산 다모환충류의 분류에 관한 연구의 일환으로서 1978넌 남해수역의 중심지역인 거문도와 백도에서 채집한 저서성 갯지렁이류를 동정 분류한 결과 11과 19속 24종의 다모환충류를 얻었기에 그 형태적 특징을 바탕으로 과와 종의 분류검색료를 작성하였다. 이 가운데 Syllis sclerofaema 흰점염주발갯지렁이, Amphitrite cirrata 유령꽃갯지렁이, Salmacina dysteri 가는관덮개꽃갯지렁이, Dexiospira foraminosus 동그라미관덮개꽃갯지렁이 등의 3과 4종은 한국 미기록종으로 우리나라 동물상에 최초로 기재된다.

• Proceedings of the Korea Society of Environmental Biology Conference
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• 2002.11a
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• pp.81-106
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• 2002

여름철 광양만의 저서환경 상태를 파악하기 위해서 2001년 6월 광양만의 38개 조사정점에서 대형저서동물의 분포를 조사하였다. 출현한 대형저서동물은 총 154종이었고, 다모류가 출현종수와 개체수에서 가장 우점한 동물분류군이었다. 다모류의 Tharyx sp. (44.8 %), Lumbrineris longifolia (14.0%), 이매패류의 Mytilus edulis (6.5 %), 단각류의 Corophium sinense (4.5 %), 다모류의 Heteromastus filiformis (3.6 %), Sigambra tentaculata (1.7 %) 등이 주요 우점종이었다. 광양만의 묘도 서쪽에 위치한 정점들에서 종수와 개체수가 적었고, 광양만의 주수로역에서 풍부한 생물상을 보였다. 군집분석결과 7개 정점군으로 구분되었으며, 광양만의 서부해역은 종조성이 다양한 군집으로 구성되어 있었다. 저서오염지수(BPI)와 생물계수(BC)에 의한 저서군집의 건강도지수에서는 주수로역의 일부 정점을 제외한 전 정점이 현재 정상적인 상태에 있었지만, 광양만 입구지역에서는 유기물오염에 잘 적응한 다모류의 대량 출현이 있었다.

• 한국해양학회지
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• v.25 no.1
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• pp.36-48
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• 1990

This study was carried out to obtain some informations on the species composition and distribution pattern of Polychate community on the continental shelf and slope area in the East Sea. Fauna samples were collected from three sampling cruises in April of 1985, and April and October of 1987. Total 112 polychaete taxa included in 36 families were collected. Dominant species in the study area were Chaetozone setosa, Aglaophamus malmgreni, Ampharete arctica Terebellides horikoshii, Tharyx sp., and Magelona pacifica. Northern and cold water species were major contributors of polychaete communities in this study area. Dominant species showed their specific depth ranges from shelf area to upper slope and middle slope depth. The overall density was 300 indiv./m$\^$2/ and species richness was around 12 species/0.2m$\^$2/. Significant changes in mean polychaete density and species richness along depth gradient were found approximately at 600 m or deeper depth. Among physical factors, water depth, temperature and clay content, mean grain size were significantly correlated with the mean density of dominant species.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.30 no.5
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• pp.730-743
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• 1997

Community structure and distribution patterns of benthic polychaetes were studied in Aug. 1983 and Feb. 1984 in Kwangyang Bay, Korea. During the study period, the large-scale reclamation and dredging operations were taking place. Polychaetes were composed of 76 species with a mean density of $342\;ind.{\cdot}m^{-2}$ during the summer 1983 and 77 species with a mean density of $437\;ind.{\cdot}m^{-2}$ during the winter 1984. Community structure indices were applied to the seasonal data. The stations influenced by the Seomjin river are characterized by a low species number and low diversity, while the stations located in channel regions represent high species richness and highdiversity. The inner bay stations showed the intermediate level in terms of species richness and diversity. On the basis of taxa composition and abundance in summer, the cluster analysis indicated that the study area was divided into live regions. The main factors that govern the polychaete distributions appeared to be the fresh water run-off and bottom sediment composition. However, a slight difference was observed in winter community, and changes in composition of the dominant species were found from Lagis bocki and Chone teres to Glycinde gurjanovae and Heteromastus filiformis. As a result, the broad scale reclamation and dredging activities may have played a role in changes of the polychaete community structure and the dominant species composition in Kwangyang Bay.

• Journal of Environmental Impact Assessment
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• v.30 no.4
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• pp.203-214
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• 2021

Assessment of benthic quality status was implemented along the subtidal areas of Jindo and Jejudo to understand faunal structure of polychaete assemblages and ecological quality of the benthic environment. Sediment analysis was characterized by well sorted of both mud and sand in Jindo, and a little higher sand in Jejudo instead. A total of 68 polychaete species were found at 14 sampling stations with a mean density of 231 inds./m², and 61 species, 167 inds./m² and 62 species, 295 inds./m² in Jindo areas and Jejudo areas. Dominant species found in Jindo areas were Heteromastus filiformis, Ampharete arctica, Prionospio sp., Sigambra tentaculata, Thelepus sp. and Amphicteis gunneri, Ampharete arctica, Prionospio sp., Spiochaetopterus costarum, Heteromastus filiformis in Jejudo. With a help of cluster analysis, it was found that the sampling stations showed distinctive pattern of the distribution pattern and benthic quality status in Jindo and Jejudo except sampling station numbers 5 and 6, respectively. AMBI analysis the results were 1.2-3.4, grade V benthic polychaetes did not appear. It was evident that both Jindo and Jejudo had different sedimentary characteristics as well as distribution pattern of polychaete assemblages.