• 해양환경안전학회지
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• 제22권1호
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• pp.27-41
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• 2016

본 연구는 거제한산만에 서식하는 대형저서동물의 군집구조와 건강도를 평가하는데 목적이 있다. 대형저서동물의 채집을 위한 현장조사는 2013년 5월(이하 춘계)과 8월(이하 하계)에 실시하였다. 거제한산만에서는 총 300종 $7.6m^{-2}$과 75,760개체(1,994개체 $m^{-2}$)의 대형저서동물이 출현하였고, 다모류가 110종과 49,955개체(1,315개체 $m^{-2}$)의 밀도를 나타내 가장 우점하는 생물이었다. 거제한산만의 주요 우점종은 다모류의 긴자락송곳갯지렁이(Lumbrineris longifolia, $299{\pm}164$개체 $m^{-2}$), Aphelochaeta monilaris($100{\pm}57$개체 $m^{-2}$), 이매패류의 종밋(Musculista senhousia, $91{\pm}96$개체 $m^{-2}$) 및 다모류의 꼬리대나무갯지렁이(Praxillella affinis, $80{\pm}696$개체 $m^{-2}$)등이었다. 출현 종과 개체수의 자료를 근거로 대형저서동물의 군집구조를 파악한 결과, 대형저서동물 군집은 크게 내만역(산달도 인근 양식어장) 정점군과 수로역(한산도에서 추봉도 해역) 정점군으로 대별되었다. 거제한산만의 건강도를 평가한 결과, 수로역의 정점군과 비교해 내만역에 위치한 산달도 인근 양식어장 정점군에서 환경질이 상대적으로 불량하였다. 또한 3개의 생물 평가지수(다양도 지수, M-AMBI 지수 및 환경보전도 지수)는 AMBI 지수와 비교해 상대적으로 효율적인 지수임을 알 수 있었다.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제14권2호
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• pp.15-23
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• 2008

The criterion of 'void space' in this paper is based on the sense of unusual experiences to afford the improvement of the value of cultural life with the sense of Healing. The more chances to spiritual converse with nature and oneself, the higher the value of healing experiences that one has will grow. This analysis has been done on the premises that this is derived from the inner conversation with 'nature' and 'oneself', as well as among 'others'. In other words, while the 'community void' affords programmatic aspect in relations between humans, the 'ecological void', systemic aspect in relations between human and nature, the 'meditation void', the aspect of image in relations between human and human's inside. Jong-soung Kimm and Hyo-sang Seung are Korean architects who have consistently expressed contrastive essential characteristics of the 'void space' in their contemporary works. While the void space of contemporary Korean architectures have shown various external forms, there has been a trace deeply rooted from the absolute and neutral concepts of the masters of Modern architects and 'Madang'of Korean traditional space. The integrated composition in the works of Jong-soung Kimm suggested integrated characters and healing affordances of 'Madang', but it hardly showed the poetic simplicity that could be seen from the image of traditional 'Madang'. On the other hand, the works of Hyo-sang Seung represented the simple and silent image of 'Madang', but showed fragmented characteristics that didn't sufficiently afford the integrated healing functions of 'Madang'.

• 수산해양교육연구
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• 제27권1호
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• pp.273-283
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• 2015

This study was carried out to examine the species composition and community structure of benthic marine algae at the subtidal zones of Daepo, Wolpyeong, Wimi and Jigwido in south Jeju, Korea from March to December 2009. Total 87 species including 14 green algae, 23 brown algae, and 50 red algae were collected and identified. Among these species, 9 species were found throughout the year. The dominant species which contributed significantly to the total biomass were Ecklonia cava, Undaria pinnatifida, Peyssonnelia capensis, Cladophora wrightiana, Sargassum serratifolium, Grateloupia angusta, Codium coactum, Plocamium cartilagineum, and Sargassum macrocarpum. The average seaweed biomass was 7,578.2 g wet weight $m^{-2}$ and maximum biomass was recorded seasonally in spring ($9,627.6g\;m^{-2}$), while minimum was recorded in autumn ($5,963.0g\;m^{-2}$), by sites maximum biomass Jigwido ($12,889.9g\;m^{-2}$), while minimum was recorded in Daepo ($5,403.8g\;m^{-2}$). The seasonal and regional flora were investigated as six functional groups. A coarsely branched form was the most dominant functional group constituting from 42.9~52.8% of the total flora. Ecological state group (ESG) II, as an opportunistic species, including sheet form, filamentous form, and coarsely branched form, consisted of 31~59 species, constituting 77.5~84.9%.

• 한국물환경학회지
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• 제34권5호
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• pp.514-536
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• 2018

GPI (Group Pollution Index) using 29 indicator groups of Korean benthic macroinvertebrates was proposed in 1992, a higher category taxa-level index developed for rapid field assessment of organic water pollution. This study was performed to revise the assessment scheme of GPI based on taxonomic performance and ecological information accumulated since 1992. The original GPI was renamed SBMI (Simple Benthic Macroinvertebrates Index), and SBMI was based on saprobic valency of 26 indicator groups composed of higher category taxa (mainly family ~ phylum) excluding some genus or species-level taxa. SBMI revealed highly significant correlation with concentration of 5-day biochemical oxygen demand ($BOD_5$) (correlation coefficient r = 0.78, n = 569 sites), total suspended solids (r = 0.69), and total phosphorus (r = 0.77). Also, SBMI revealed strong correlation with Shannon-Weaver's species diversity (r = -0.85), Margalef's species richness (r = -0.85), and McNaughton's dominance (r = 0.83). Determination coefficient of SBMI to concentration of water quality items and values of community indices such as species diversity was 3 ~ 8 % and approximately 11 ~ 14 % higher than that of GPI, respectively. Correlation between SBMI and water quality factors or community indices such as species diversity did not reveal much difference compared to that of species-level indices, such as BMI (Benthic Macroinvertebrates Index) and ESB (Ecological Score of Benthic Macroinvertebrates). SMBI is a simple-qualitative index with higher category taxa easily identified, and is applicable for rapid field assessment of water environment impairment.

• 한국어류학회지
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• 제31권4호
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• pp.241-248
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• 2019

2018년 3월부터 2019년 2월까지 10개 지점의 거금도 전 수계 담수 어류상을 조사하였으며, 조사 기간 동안 4목 5과 13종이 채집되었다. 조사 결과 잉어과 Cyprinidae (68.84%)와 망둑어과 Gobiidae (18.21%)가 우세하였으며, 우점종은 갈겨니 Zacco temminckii (53.71%), 아우점종은 버들치 Rhynchocypris oxycephalus (10.78%)로 나타났다. 본 조사에서 멸종위기 야생생물 I급인 좀수수치 Kichulchoia brevifasciata (1.27%)가 출현하였으나 이전의 문헌과 비교하여 서식지가 줄어 신평천 일부 지점에서만 서식이 확인되었다. 또한 거금도의 한국 고유종으로는 남방종개 Iksookimia hugowolfeldi (5.07%), 섬진자가사리 Liobagrus somjinensis (2.99%), 좀수수치 K. brevifasciata (1.27%) 3종이 확인되었다. 군집지수를 분석한 결과 다양도 지수는 1.666, 균등도 지수 0.649, 우점도 지수 0.645, 종 풍부도 지수 1.713으로 나타났다.

• 한국환경생태학회지
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• 제20권1호
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• pp.29-40
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• 2006

잣나무 천연림의 생태적 관리를 위한 기초 자료를 얻고자 설악산 대청봉 일대의 잣나무 천연림을 대상으로 본 연구를 수행하였던 바 설악산 잣나무 천연림의 군락유형은 잣나무군락에서 단풍취군과 철쭉군으로 분류되었고, 단풍취군은 시닥나무소군과 실새풀소군으로 세분되어졌다. 본 조사지의 중요치 결과를 보면 잣나무, 분비나무, 청시닥나무, 사스래나무, 당단풍, 마가목, 신갈나무 순으로 중요치가 높게 나타났다. 본 조사지역의 종다양도의 범위는 0.44에서 0.86이고, 종내경쟁보다는 종간의 경쟁이 심한 것으로 나타났다. 또한 15개 매목조사구에서 DBH 10cm이하의 잣나무는 35개체로 거의 나타나지 않고 있었으며, 잣나무가 현재 상층임관을 점하고 있으나 하층목의 우점도가 낮아 그대로 방치하면 차대림은 다른 종으로 천이될 것으로 사료되었다. 또한 본 조사지의 잣나무 개체는 직경생장에 있어서 느린 생장과 빠른 생장의 시기가 교대로 나타났으며, 이는 주기적인 교란이 발생하였음을 반영하는 것으로 사료되었다.

• 한국환경생태학회지
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• 제29권1호
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• pp.29-45
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• 2015

Water chemistry and fish community, based on fish compositions and ecological characteristics(trophic/tolerance guilds and condition factor), were compared in Gucheon Reservoir($G_cR$) and Yeoncho Reservoir($Y_cR$). Chemical parameters of water quality such as BOD, COD, nutrient(N, P) and suspended solids indicated that water quality was better in the $Y_cR$ than $G_cR$, and the temporal variability in seasonal and interannual patterns were greater in the $Y_cR$. The greater variability was mainly attributed to intense dilutions of reservoir water by Asian monsoon rain during July-August. Fish guild analysis indicated that species diversity was higher in the $G_cR$ than the $Y_cR$, and that the proportion of tolerant and omnivore species were greater in the $Y_cR$. Regression analysis of body weight-total length showed that the regression coefficient(b value) was lower in the $G_cR$(2.15 ~ 2.40) than the $Y_cR$(2.59 ~ 3.14). Condition factor(K) of fish against the total length showed negative slope of Zacco temminckii, Carassius auratus, Pseudorasbora parva and Rhinogobius brunneus population in the $G_cR$, and a positive slope of Carassius auratus and Rhinogobius brunneus population in $Y_cR$. Overall, our data suggest that the growth of the fish populations, based on the length-weight relations and condition factor, reflected the trophic regime of nutrients and organic matter.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2015년도 학술발표회
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• pp.547-547
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• 2015

본 연구에서는 달천구간 (괴산댐~송동보)에서 어류 군집 (Fish Community)을 고려한 생태학적 최적유량 (Ecological Optimum Discharge)을 산정하였다. 이를 위해 유량증진방법론(IFIM: Instream Flow Incremental Methodology)을 기반으로 한 2차원 모형인 River-2D를 적용하여 수리해석 및 대상어종 (Target Fishes)에 대한 가중가용면적 (WUA: Weighted Usable Area)을 산정하였다. 모형 검증을 위해 김원 등 (2007)에 의해 수행된 과업구간 내 수위 및 유량 모니터링 자료를 활용하였으며, 하류경계조건은 김지성 등 (2007)에 의한 수위-유량 관계곡선식을 활용하였다. 또한 평저류량 조건에서의 조도높이 (Roughness Height) 산정을 위해 유량 및 하상재료의 영향을 고려할 수 있는 멱함수 및 반대수함수 형태의 조도계수 공식을 적용하였다. 모형검증 결과 River-2D에 의해 계산된 수위값이 모니터링값과 비교적 잘 일치함을 알 수 있었다. 대상유역에 대한 어류 모니터링 (에코리버21사업단, 2007~2010) 결과를 바탕으로, 과업지역내 우점종 (피라미), 아우점종 (쉬리 등 3개 어종), 멸종위기어종 (묵납자루)을 대상어종으로 선정하였으며, 대상어종에 대한 서식도적합도지수 (HSI, Habitat Suitability Index) 산정을 위해 IFASG (Instream Flow and Aquatic Systems Group) 방법 및 WDWF (Washington Department of Fish and Wildlife) 방법을 적용하였다. 수심, 유속, 하상재료 및 하상형상에 대한 서식도적합도지수가 5가지 대상어종에 대해 각각 산정되었으며, 복합적합도지수 (CSI : Combined Suitability Index)를 고려한 과업대상 위치별 어류의 발생확률이 모의되었다. 어류 군집에 대한 가중가용면적 (WUA)이 최대로 되는 생태학적 최적유량 산정 결과, Type I~III의 경우 모두 $10m^3/s$ 이하의 유량조건에 대해서 WUA가 최대값을 갖는 것을 확인할 수 있었으며, 납자루속의 어류 (Type III)의 WUA가 000 및 000속 (Type II)의 어류에 비해서 작은 유량에서 더 큰 값을 갖으며, $10m^3/$s 초과 유량에 대해서는 반대의 경향이 나타나는 것을 확인할 수 있었다.

• Fisheries and Aquatic Sciences
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• 제24권4호
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• pp.171-179
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• 2021

To better understand the ecological functioning of the coastal ecosystem in Gamak Bay on the southern coast of Korea, seasonal changes in the density, biomass, and secondary production of the copepod community were investigated. Environmental measurements (temperature, salinity, and chlorophyll a) and copepod sampling were performed seasonally from January to December 2006. The mean density of copepods (excluding nauplii) varied from 949 to 5,999 ind · m^-3; copepod density was at its highest from March to July. The copepod community comprised 32 taxa, including Calanoida, Cyclopoida, and Harpacticoida. The predominant species were Paracalanus parvus s. l., Acartia omorii, Eurytemora pacifica, Oithona similis, A. erythraea, Centropages abdominalis, Pseudodiaptomus marinus, and Calanus sinicus. There were significant spatial and seasonal variations in copepod total biomass, which ranged from 0.33 to 43.10 mg C m^-3. Mean secondary production of the copepods in Gamak Bay, estimated as 2.05 ± 1.63 mg C m^-3 d^-1 using the Huntley and Lopez growth model, was over 2 times higher than the value given by application of the Hirst and Bunker model (1.09 ± 0.85 mg C m^-3 d^-1). The daily production rate to biomass (P/B) ratio varied between 0.08 and 0.86 d^-1 (Huntley and Lopez model), and 0.18 and 0.33 d^-1 (Hirst and Bunker model). Our results emphasize the ecological significance of using models to estimate the secondary production of copepods and provides the first report of copepod production in Gamak Bay.

• 지역사회간호학회지
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• 제32권4호
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• pp.540-554
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• 2021

Purpose: Most of the currently used concepts and measurements of social support have been relevant for general population. The main purpose of this study is to conduct the concept analysis of perceived social support(PSS) of family caregivers for people with dementia. Methods: This study adopted the Walker and Avant concept analysis methodology. Results: Findings from this concept analysis suggested four defining attributes of PSS of family caregivers for people with dementia: 1) PSS is help or assistance that family caregivers perceive as available when needed; 2) PSS is offered through socio-ecological structure; 3) PSS has a specific function to meet the needs of family caregivers; and 4) PSS includes quality aspects where family caregivers choose, use, or evaluate it. Borrowing from the socio-ecological model, this study proposed the structural aspects of PSS. This study also identified functional aspects of PSS, such as emotional support, informational support, appraisal support, and practical support. Finally, this study assessed quality aspects of PSS, such as satisfaction, timeliness, usefulness, accessibility, and coordination. Conclusion: Focusing on family caregivers for people with dementia, we proposed a new model of PSS. The present study helped refine and clarify the concept of PSS of family caregivers for people with dementia. The results of this study may also contribute to promoting the development of more effective instruments for the concept.