거제·한산만 양식굴 Crassostrea gigas 의 에너지 전환 효율

김용술 한국수산학회 1980 한국수산과학회지 Vol.13 No.4

거제·한산만산 양식굴 Crassostreagigas의 에너지 전환 효율을 추정하기 위하여 한 양성 기간인 1979년 7월부터 1980년 4월까지 성장도, 생식 물질 방출량, 패각 형성량, 호흡량, 집단 감모율에 대한 현지 생체 실측 조사를 행하였으며, 연체부의 물질 조성 및 에너지 함량, 패각의 유기 물질 및 생식 물질의 에너지 함량을 각각 측정하고, 호흡량에서 호흡 열량 계수를 사용하여 異化 에너지양을 계산하였다. 이상의 자료에서 동화 에너지양에 대한 연체부 에너지양의 비율로 순 에너지 전환 효율을 계산하고 동화 호율을 측정하여 섭취 에너지양에 대한 연체부 에너지양의 비율로 총 에너지 전환 효율을 계산하였으며, 그 결과는 다음과 같다. 1. 각고(SH) 및 연체부 건조 중량 (DW)의 半月齡(t)에 따른 성장도 ; SH=6.33(1-e^(-0.2421(t+0.54))), (0<t◎10) SH =4.44+0.14t, (10◎t◎20) DW= 0.608(1-e^(-0.2421(t+0.54)))^(2.589), (0<t◎10) DW=1.53×10^(-6)×(4.44+0.14t)^(7.2), (10◎t◎20) 2. 생식물질 방출량(G); G=0.0145+(3.95×10^(-3)×SH^(2.9861)) 3. 패각 형성량(SO); SO = 0.000648×SH^(2.527) 4. 호흡량(R); log R=(0.0386T-0.5381)+(0.6409-0.0083T)·log DW 5. 연체부 에너지 함량 ; 3.93(7월)∼4.54(4월) Kcal/g, DW(질소 보정에 의한 계산값) 6. 생식 물질의 에너지 함량(E_G); E_G, Kcal=1/4[0.0149SH^(2.961)+0.0547]; 7. 패각 유기물의 에너지 함량(E_(SO)); E_(SO), Kcal=0.00184SH^(2.527) 8. 호흡 에너지 계수 : 3.18(8월)∼3.31(4월) ㎈/㎎ O₂ 9. 집단 총 감모율 : 36% 10. 동화 효율 : 55.5%(40∼70%) 11. 순 에너지 전환 효율 : 28% 12. 총 에너지 전환효율 : 15.28%(11∼20%) The efficiency of energy transfer by a population of the farmed pacific oyster, Crassostrea gigas was studied during culture period of 10 months July 1979-April 1980, in Geoje-Hansan Bay near Chungmu City. Energy use by the farmed oyster population was calculated from estimates of half-a-month unit age specific natural mortality rate and data on growth, gonad output, shell organic matter production and respiration. Total mortality during the culture period was estimated approximate 36% from data on survivor individual number per cluster. Growth may be dual consisted of a curved line during the first half culture period (July-November) and a linear line in the later half period (December-April). The first half growth was approximated by the von Bertalanffy growth model; shell height, SH=6.33 (1-e-^(0.2421(t+0.54)), where t is age in half-a-month unit. In the later half growth period shell height was related to t by SH=4.44+0.14t. Dry meat weight (DW) was related to shell height by log DW=-2.2907+2.589·log SH, (2<SH<6), and/or log DW=-5.8153+7.208·log SH, (5<SH<10). Size specific gonad output (G) as calculated by condition index of before and after the spawning season, was related to shell height by G=0.0145+(3.95×10^(-3)×SH^(2.9861)). Shell organic matter production (SO) was related to shell height by log SO=-3.1884+2.527·log SH. Size and temperature specific respiration rate (R) as determined in biotron system with controlled temperature, was related to dry meat weight and temperature (T) by log R=(0.386T-0.5381)+(0.6409-0.0083T)·log DW. The energy used in metabolism was calculated from size, temperature specific respiration and data on body composition. The calorie contents of oyster meat were estimated by bomb calorimetry based on nitrogen correction. The assimilation efficiency of the oyster estimated directly by a insoluble crude silicate method gave 55.5%. From the information presently available by other workers, the assimilation efficiency ranges between 40% and 70%. Twenty seven point four percent of the filtered food material expressed by energy value for oyster population was estimated to have been rejected as pseudofaeces; 17.2% was passed as faeces; 35.04% was respired and lost as heat; 0.38% was bounded up in shell organics; 2.74% was released as gonad output; 2.06% was fell as meat reducing by mortality. The remaining 15.28% was used as meat production. The net efficiency of energy transfer from assimilation to meat production (yield/assimilation) of a farm population of the oyster was estimated to be 28% during culture period July 1979-April 1980. The gross efficiency of energy transfer from ingestion to meat production (yield/food filtered) is probably between 11% and 20%.

해산 어류 양식장 가두리의 DO수지 : 곤리도 방어 양식장의 경우 In case of yellow tail farm in Konli - Do

김용술 한국수산학회 1988 한국수산과학회지 Vol.21 No.1

본 연구는 1987년 9월 8일, 9일 양일간에 걸쳐 24시간 동안 곤리도 금성수산 방어 가두리 양식장에서 해산어류 양식상·가두리의 방양한도를 산정하는데 기초자료로 쓰일 수 있는 용존산소 수지를 해석해 보기 위하여 실시하였다. 가두리에 수용된 당년생 방어 2,800㎏이 1일간 소비하는 산소량은 3.09g/㎥였고, 가두리 안의 水體에 의하여 소비되는 산소량은 1.24g/㎡·day였으며, 수중 식물성 플랑크톤에 의해 생산공급된 산소량과 大氣로 부터 海水中으로 녹아 들어간 산소량의 합계는 水中 유기물의 분해와 플랑크톤의 호흡을 포함하는 水體자체의 산소소비량의 43%를 감당하는 수준이었고, 그 나머지 57%와 사육어가 소비하는 다량의 산소는 가누리 안밖으로 교류하는 해수유동에 의하여 공급되고 있었다. 이 어장의 가누리에 수용할 어체량은 해수교환율에 의해 결정되는 듯이 보이며, 어장내의 조류에 대한 가두리 배치방식에 따라 해수교환율이 달라지게 될 것이므로 가두리마다의 해수유통에 따라 수용량을 조정할 필요가 있다 하겠다. In coastal fish farms the farmers, especialy engaging in dealing with the floating cage culture, going to know about relationships between holding capacity and water quality in cage. Some of water quality managers and specialists studing physiological ecology understand that the key of water quality management concerned fish farming is budget of dissolved oxygen. This paper deals with oxygen budget in floating cage of the yellow tail farms at southern coastal area in Korea. The sampling station is located at Konli-Do fish farm near Chungmu, and the data is collected for 24 hours from 3:00 ㏘ 8 th September 1987. In result, the needed oxygen coming after the consumption by the rearing fish had been supplied with the tide current exchange, the sum of oxygen produced by phytoplankton photosynthesis and diffused from atmosphere are no more that 43% for the needs of sea water consumption included respiration of planktons and decomposition of organic matters. The optimum holding capacity of cage is possible to compute with the calculation of minimum diurnal water exchange rate [Qin·V ¹(C-c˙)] through net mesh of cage.

석탄직접액화를 위한 고온/고압 반응에서 Coal/Tetralin 비의 영향

김용술,박노국,이태진,강미숙,한기보 한국공업화학회 2013 한국공업화학회 연구논문 초록집 Vol.2013 No.1

경제수역 시대의 어업자원 육성방향

김용술 경상대학교 해양산업연구소 1996 경제수역선포와 한국 수산업의 전망 - 행사진행순서와 발표논문요지 - Vol.- No.-

석탄직접액화공정에서 열분해에 의한 BTX의 생성

김용술,박노국,이태진,강미숙,한기보,정철진 한국공업화학회 2013 한국공업화학회 연구논문 초록집 Vol.2013 No.-

마이크로 채널 내에 macro-porus alumina의 코팅

김용술,박노국,이태진 한국공업화학회 2012 한국공업화학회 연구논문 초록집 Vol.2012 No.-

충무근해산 한전복 Haliotis discus hannai Ino 의 조기채묘 기술에 관한 연구

김용술,조창환 한국수산학회 1976 한국수산과학회지 Vol.9 No.1

전복의 조기채묘기술개발을 위하여 전복의 생식소 조기성숙에 관여하는 요인과 채란성적을 생태적입장에서 조사검토하였다. 수온조절, 광주기 조절, 단순사육등의 실험구 배치를 한 4개의 실내사육 수조와 해중에 수하한 축양용 대바구니를 사용하여 1975년 4월 24일부터 6훨 23일까지 60일간 인공사육한 한 전복과, 충무시 앞바다의 죽도에서 채포한 자연산 한 전복을 모패로 사용하며, 동년 6월에 산란유발하여 그 채란성적을 비교 고찰하였다. 1. 한전복 생식소 성숙에 관여하는 생태적 요인은 수온보다 조도환경이라고 보아진다. 2. 낮의 최대 조도가 2,000lux이하의 어두운 수조에서 60일 이상 모패를 사육함으로써 좋은 성적으로 조기채묘가 가능했다. For the artificial precocious breeding of abalone effects of changes in environmental parameters, water temperature and light period, on the induction of spawning have been studied. Subtidal specimens of Haliotis discus hannai were collected irregularly for 6 times from April to June 1975 in Chungmu Bay near Jukdo Island, the southern coast of Korea. One hundred and fifty specimens were reared in 4 aquarium tanks in the laboratory and in a creel submerged in the sea during the period of 60 days from April 24 to June 23, 1975. The all groups kept in the four tanks and a creel showed very high spawning rates (70∼100%), compared to those inhabited the natural environment at sea until right before the spawning time (0∼50%, average 16.4%). From the results of the present induced spawning, the parameters can be discussed as follows: It seems likely that photoenvironment may stimulate to produce and secrete some internal substances which may concern to giving the fertilizing ability to the eggs before spawning and to inducing spawning, but the temperature may not be a factor for this concern. For effective precocious breeding, it seems to require that abalones are to be reared under controlled conditions of darkness below 2,000 lux even durng day time for mire than 60 days before inducing spawning.

한국 남해의 동물성 플랑크톤량의 경년 변화에 관한 연구

김용술 한국수산학회 1972 한국수산과학회지 Vol.5 No.4

한국 남해의 동물성 플랑크톤 현존량은 1963∼1971년간의 자료로 분석한 결과 63개월을 일주기로 주기 변동을 하고 있으며, 그 주기성은 자기 상관 계수 r_k=0.86으로 강한 편이다. 계절 순환 변동은 4월과 10월을 극대기로 하는 쌍봉성 변동을 하며, 그 경향은 대단히 뚜렷한데, 이것은 이해역에 있어서 식물성 를랑크톤의 양적 소장과 중요한 관련성을 가지는 것으로 고찰된다. The present paper deals with secular analysis of zooplankton biomass by statistical method in the south sea of Korea during the period of nine years from 1963 through 1971. Data were taken from the Annual Report of Oceanographic Observations, Fisheries Research and Development Agency, Korea. The trend value of annual variations in the 108 month period above was calculated by method of 12 month moving average, and a pericd analysis was made by use of correlogram method using autocorrelation coefficients. The trend of zooplankton biomass shows periodical fluctuation for the period of 63 months with high interrelationships. The seasonal variation has been obvious with growth phase twice a year, in April and October.

집중분석:일본의 군사력 증강과 동남아안보

김용술 북한연구소 1987 北韓 Vol.- No.188

굴 양식장의 환경에 관한 연구 : 충무부근 양식장의 저질에 관하여 Superficial Mud Characteristics Near Chungmu

김용술,조창환 한국수산학회 1978 한국수산과학회지 Vol.11 No.4

COD and sulphide contents in the superficial mud in three oyster farms, one near Gajo-do in Chinhae Bay, the second near Eup-do in Koseong Bay and the third near Eogu in Keoje Bay, around the Chungmu area have been monthly determined for seven months from May through November in 1978. Bottom water was also checked for chlorophyll-a, dissolved oxygen, COD and sulphide. In general, large amounts of COD and sulphide in the superficial mud were found in the summer season. COD was 38.1 mg/g dry mud in the farm near Gajo-do, 32.3 mg/g near Eup-do and 25.1 mg/g Eogu farm and sulphide was 0.313 mg/g dry mud, 0.517 mg/g and 0.312 mg/g respectively. COD and sulphide contents in the farms near Gajo-do and Eup-do were a little over the upper level of the eutrophic range, that is, 30 mg/g dry mud in COD and 0.3 mg/g dry mud in sulphide. It shows that the above two oyster farms were already eutrophicated. However, among three oyster farms no clear difference in bottom water was found.