靈性相談

尹良浩(윤양호) 광주가톨릭대학교 신학연구소 2002 神學展望 Vol.- No.139

司祭 靈性(Ⅱ)

尹良浩(윤양호) 광주가톨릭대학교 신학연구소 2000 神學展望 Vol.- No.131

司祭 靈性(1)

尹良浩(윤양호) 광주가톨릭대학교 신학연구소 2000 神學展望 Vol.- No.129

득량만 식물프랑크톤 군집의 시 공간적 분포특성

윤양호(Yang Ho Yoon) 한국환경생물학회 1999 환경생물 : 환경생물학회지 Vol.17 No.4

The observations on the spatio-temporal distribution and seasonal fluctuations of phytoplankton community were carried out in Deukryang Bay of the Korean Southwestern Sea from June 1992 to April 1993. A total of 75 species of phytoplankton belonged to 47 genera was identified. In Deukryang Bay seasonal succession in dominant species; P. alata, G. flaccida, S. costatum, L. danicus and N. longissima in summer, St. palmeriana, Ch. curvisetus and B. paxillifera in autunm, S. costatum, Ch. curvisetus, E. zodiacus and Pn. pungens in winter, and As. glacialis, As. kariana, N. pelagica, Th. nitzschioides and S. costatum in spring, were very marked, that is to say, the communities structure of phytoplankton in Deukryang Bay appeared to be various species composition and it was occupied with diatoms all the year round. Phytoplankton standing crops fluctuated with an annual mean of 1.4×10 exp (5)cells/l between the lowest value of 2.6×10 exp (3)cells/l in July and the highest value of 1.0×10 exp (6)cells/l by S. costatum in January. Densities of the phytoplankton cell number by the samples of Deukryang Bay ranged from 2.6×10 exp (3)cells/l to 1.2×10 exp (5)cells/l with the mean value of 3.6×10 exp (4)cells/l in summer, from 6.0×10 exp (3)cells/l to 2.6×10 exp (5)cells/l with mean of 1.5×10 exp (5)cells/l in autumn, from 1.3×10 exp (4)cells/l to 1.0×10 exp (6)cells/l with mean 3.5×10 exp (5)cells/l in winter, and from 4.8×10 exp (3)cells/l to 6.0×10 exp (5)cells/l with mean of 1.6×10 exp (5)cells/l in autumn. That is to say, phytoplankton standing crops was large in low temperature seasons, on the other hand small in high temperature seasons. Chlorophyll α concentration fluctuated between 0.19㎍/l and 12.3㎍/l in March. In Deukryang Bay seasonal flucturation in chl-α concentration was not marked. Especially, chl-α concentration in the water around Deukryang Island located in the middle part of Deukryang Bay showed patchy distributions with a very high concentration. And chl-α concentration was high during a year. Therefore, phytoplankton production in Deukryang Bay could be very high year-round. [Deukryang Bay, Phytoplankton community, Spatio-temporal distribution, Standing crops, Dominant species, Diatoms, Skeletonema costatum, Chlorophyll a., Patchiness].

봄 조석에 따른 한국서남해역 수도수로 주변해역의 수질 및 표층퇴적물의 환경특성

윤양호 외 전남대학교 수산과학연구소 2008 수산과학연구소논문집 Vol.17 No.1

We carried out a study for the water quality, such as water temperature, salinity, density, extinction coefficient (EC), dissolved oxygen (DO), suspended solied (SS), chemical oxygen demand (COD), dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), N/P ratio, silicate and chlorophyll a, and the distribution of organic matter in surface sediments, such as ignition loss (IL), acid volatile sulfide (AVS), CODs in the Sudo strait of west-southern parts of Korean peninsula during early spring 2005. Water temperature and salinity showed a well mixing water types. And according to the analysis of a T-S diagram, three characteristics of water types were identified. EC and SS showed a wide range 1.25-6.86 and 46.0~362.7 ㎎/L. EC was above 3 from almost all area except in the some northern parts. Especially, SS in surface water showed very high value with mean 112.4 ㎎/L in the neap tide and 172.8 ㎎/L in the spring tide. DIN fluctuated between 2.58 μM with the lowest mean 9.78 μM in surface water of spring tide and 22.74 μM with the highest mean 14.71 μM in bottom of neap tide. DIP was from 0.37 μM in spring tide to 0.79 μM in neap tide. N/P ratio showed the lowest mean value of 17.0 in surface water of spring tide within the range of 3.8∼25.2, while it showed the highest mean value of 20.7 in surface water of neap tide within the range of 16.7∼25.5. And chlorophyll a concentration was from low value of 1.61 ㎍/L in spring tide to high value of 7.50 ㎍/L in neap tide. As a results of the distribution of organic matter on surface sediments, the range of IL appeared from 2.91% to 8.92% with mean value of 5.07%. CODs showed the mean value of 15.96 ㎎/g dry within the range of 2.13∼37.19 ㎎/g dry. And the range of AVS(H2S) was from no detect(ND) to 0.16 ㎎/g dry with mean value of 0.13 ㎎/g dry. The biological marine environmental characteristics in Sudo straits of west-southern parts of Korean peninsula was characterized by high concentration of nutrients influenced by animal waste, and very high values of SS and extinction coefficients by well mixing type. Therefore, the primary productivity in Sudo straits may be controlled by the irradiance.

다변량해석에 의한 여수연안해역 식물플랑크톤 군집의 변동특성

윤양호 한국물환경학회 1992 한국물환경학회지 Vol.8 No.3

Detailed analysis on the relationship between environmental conditions and phytoplankton growth was carried out the Kamak Bay, Southern Korea from January to November in 1991. Physico-chemical factors (temperature, salinity, sigma-t, dissolved inorganic nutrients such as ammonia, nitrite, nitrate, phosphate and silicate, N/P ratio) were collected 3 times a week as well as biological factors (chlorophyll a, phytoplankton species composition and cell number). The principal component analysis(PCA) proved that high density of phytoplankton biomass occurred under the condition of high temperature(=low salinity) and high concentration of dissolved inorganic nutrients. As the results of multiple regression analysis(MRA) of biological factors on physico-chemical factors as explanatory variable, phytoplankton growth was found to be controlled by some specific factor such as DIN (dissolved inorganic Nitrogen, but dinoflafellates(=phytoflageilates) growth by DIP (dissolved inorganic phosphorus) in warm seasons.

시아해의 수질환경과 식물플랑크톤 생물량의 시 공간적 분포특성과 기초생물량변동에 영향을 미치는 환경특성

윤양호(Yang Ho Yoon) 한국환경생물학회 2000 환경생물 : 환경생물학회지 Vol.18 No.1

Field survey on the spatio-temporal distribution of water quality and chlorophyll α concentration, and the environmental factors on the variation of phytoplankton biomass were carried out at the 23 stations for four seasons in the Shiahae, southwestern coast of Korean Peninsula from February to October in 1995. I made an analysis on biological factor as chlorophyll α concentration as well as environmental factors such as water temperature, salinity and nutrients; ammonia, nitrite, nitrate, dissolved inorganic nitrogen, phosphate, N/P ratio, silicate and Si/P ratio. The waters in the Shiahae were not stratified due to the tidal mixing and high velocity of tidal current. And the high productivity in photic layer were supported by high nutrients concentration from freshwater on lands and bottom waters. The low depth of transparency in the Shiahae had a bad influence upon primary production and marine biology. In Shiahae had a sufficient nutrients for primary production during a year. Especially dissolved inorganic nitrogen and silicate were high, the other side, phosphate was low. The source of nutrients in summer and silicate supply depend on input of freshwater from lands, the other side, dissolved inorganic nitrogen and phosphate were depend on rather supplied from bottom layer by the mixing and input of seawater from outside than input of freshwater from lands. Phosphate seemed to become a limiting nutrient for the primary production at all area of Shiahae in winter and at the northern parts in other seasons. However, dissolved inorganic nitrogen seemed to do it at the southern parts in other seasons except winter. Silicate didn`t become a limiting nutrient for diatoms in Shiahae. Phytoplankton biomass as measured by chlorophyll a concentration was very high all the year round, it was controlled by the combination of the several environmental factors, especially of nitrogen, phosphorus and the physical factors such as light intensity.[Spatio-temporal distribution, Seasonal fluctuation, Nnutrients, Chlorophyll α, Environmental factors, Nutrient source, Limiting Nutrient, Light, Shiahae].

영광군 도서해역 식물플랑크톤 군집의 계절 동태

윤양호(Yang Ho Yoon),박지혜(Ji Hye Park) 한국해양환경·에너지학회 2021 한국해양환경·에너지학회 학술대회논문집 Vol.2021 No.5

서해 남부 영광군 도서해역에서 식물플랑크톤 군집의 계절 동태를 고찰하기 위해 2020년 봄부터 2021년 겨울까지 소형 해양조사선(7.0톤)을 이용하여 21개 정점의 표층과 저층의 시료를 채수하였다. 결과, 출현한 식물플랑크톤 종은 52속 87종으로, 규조류가 67.8%, 와편모조류가 26.5%, 규질편모조류가 3.5%, 그리고 은편모조류 및 유글레나조류가 각 1.1%를 차지하였으며, 계절적인 출현 양상은 봄에 단순하였으나, 겨울은 상대적으로 다양하였다. 세포 밀도는 표층에서 여름이 28.8±30.1 cells/mL로 낮았고, 봄이 87.0±65.1 cells/mL로 높았다. 또한 식물플랑크톤 군집은 연중 규조류가 80% 이상의 점유율을 보였으며, 우점종은 Skeletonema costatum-ls가 봄과 겨울에 60% 이상 극우점을, 여름과 가을은 각 34.6%와 24.2%로 최우점하였다. 다양도 지수는 현존량과는 달리 가을에 2.794±0.445로 높았고, 봄에 1.822±0.178로 낮았다. 그러나 우점도 지수는 봄에 0.861±0.082로 높고, 가을에 0.44±0.132로 낮은 특징을 보였다. 그리고 일부 환경인자 및 식물플랑크톤 군집 관련 인자를 이용한 주성분분석 결과, 영광도서해역의 생물해양학적 환경은 개방된 외해수의 유입 및 규조류 출현 동태에 의해 지배되는 것으로 판단되었다. In order to investigate the seasonal dynamics of the phytoplankton community in the Yeongwang-Gun Islands Waters (YIWs) in the southern parts of West Sea, Korea, samples of the surface and bottom layers at 21 stations were collected from spring 2020 to winter 2021. As a results, of the phytoplankton species, 52 genera and 87 species appeared, with diatoms accounting for 67.8%, dinoflagellates 26.5%, silicoflagellates 3.5%, and crypto- monads and euglenoids 1.1% each. It was simple in spring and relatively varied in winter. The cell density of phytoplankton in surface was as low as 28.8±30.1 cells/mL in summer and 87.0±65.1 cells/mL in spring. The phytoplankton community showed a high share of diatoms by more than 80% throughout the year. As for the dominant species, Skeletonema costatum-ls had the dominance of more than 60% in spring and winter, and 34.6% and 24.2% in summer and autumn, respectively. Diversity was high at 2.794±0.445 in autumn and low at 1.822±0.178 in spring. However, the dominance was high at 0.861±0.082 in spring and low at 0.44±0.132 in autumn. As a result of principal component analysis (PCA) using environmental factors and phytoplankton factors, it was determined that the biological oceanographic environments in YIWs waters was dominated by the diffusion of open seawater and the appearance of diatoms.

제주 바다목장 해역 식물플랑크톤 군집의 시·공간적 변동 특성

윤양호(Yoon, Yang Ho) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.11

제주 바다목장 해역의 식물플랑크톤 군집의 시·공간적 분포특성을 파악하기 위해 8개 정점의 표층과 10m 수심에 서 2008년 4월부터 11월까지 4회 현장조사를 실시하였다. 식물플랑크톤 출현종은 63속 106종으로 다양하였다. 분류군별은 규조류가 61.3%, 와편모조류가 34.9%를 차지하였고, 시간적으로는 가을에 다양한 종이 출현하였다. 식물플랑크톤 현존량 은 여름 0.6 cells·mL⁻¹에서 봄 64.0 cells·mL⁻¹의 범위로 매우 낮았다. 평균 세포밀도에 의한 연변동은 연평균 최저 11월 0.9 cells·mL⁻¹에서 최고 4월 37.0 cells·mL⁻¹로 변화하여 연평균 11.7cells·mL⁻¹의 낮은 세포밀도를 나타내었다. 우점종은 4월에 Skeletonema costatum-like species(ls)에 의해 극우점되었다. 6월은 Torodinium teredo, Cylindrotheca closterium, Scrippsiella trochoidea, 9월은 S. costatum–ls, Thalassionema nitzschioides, Pseudo-nitzschia pungens, Ebria tripartita 그리고 11월은 Corethron pennatum, Dictyocha fibura, Neoceratium teres가 우점 출현하여, 기존 결과와는 다른 결과를 나타내었다. 생태지수 중에 종 다양성 지수는 4월과 9월에 낮고 6월과 11월에 높았다. 식물플랑크톤 군집으로 본 제주 바다목장 해역의 생물해양학적 특성은 연간 크기가 작은 나노플랑크톤에 의한 점유률이 높았고, 특정 종에 의해 극우점되는 외부 영양염류 유입보다는 생태내의 물질순환에 따른 재생산비율이 높은 것으로 판단되었다.

이른 봄 나로도 연안해역의 수질환경과 식물플랑크톤 군집의 출현특성

윤양호(Yang Ho YOON),한명일(Myong Il HAN) 전남대학교 수산과학연구소 2001 수산과학연구소논문집 Vol.10 No.-

Field survey on the distributional characteristics of water quality and phytoplankton community in the coastal waters of Naro Islands, southern Korea were carried out at the 38 stations in March 27,1993. We made an analysis on biological factor as chlorophyll a and phytoplankton community as well as water quality such as chemical oxygen demand(COD), seston weight(SW) and nutrients; ammonia, nitrite, nitrate, dissolved inorganic nitrogen, phosphate, N/P ratio, silicate and Si/P ratio. In the coastal waters of Naro Islands, the high productivity in photic layer were supported by nutrients from the circulation of meterials in Naro coastal waters. A total of 29 species of phytoplankton blonged to 24 genera was identified. Doninant species were 2 species of centric diatoms, Eucampia zodiacus, Thalassiosira sp. and 2 species of pennate, Asterionellopsis glacialis, Neodelphineis pelagica. The density of phytoplankton cell numbers fluctuated from 31.2 cells/㎖ to 304.0 cells/㎖. The results of principal component analysis(PCA); The source of nutrients supply depend on the mineralization of organic matters, and phytoplankton biomass was controlled by the combination of several environmental factors, especially of nitrogen and water movements. And Naro coastal waters separated with 3 regions by score of PCA. That is to say, Ⅰ regions was western parts of Naro Is. which was characterized by high activity of phytoplankton uptake, Ⅱ regions was the limited western parts of Oenaro Ⅰ. which was done the population of centric diatom, and Ⅲ regions was narrow straits which was done low activity of phytoplankton uptake because high water movement.