장어 통발어구(漁具)의 어획성능(漁獲性能) 비교(比較)

서영태 ( Young Tae Su ),김광홍 ( Keong Hong Kim ),이주희 ( Ju Hee Lee ) 한국어업기술학회 1977 수산해양기술연구 Vol.13 No.2

활멸치의 집약적 생산수단에 관한 연구 -II 권현망을 일부 개조한 어구에 의한 어호 및 그 어호물의 축양시험

이병기,서영태,이주희,Lee, Byoung-Gee,Young, Tae-Su,Lee, Ju-Hee 한국수산해양기술학회 1979 수산해양기술연구 Vol.15 No.1

재래식 권현망의 천장망을 제거하고 옆판 위 언저리에 뜸을 장치한 어구에 의하여 활멸치의 어획을 시험하고, 동시에 이렇게 어획한 멸치를 버팀대를 써서 축양조를 예인하는 방법으로 축양 시험을 실시한 결과 대략 다음과 같은 결론을 얻었다. 축양개시 15일후의 생잔률은 최고 약 71%여서 다른 어구. 어법에 의한 생잔률 보다는 낮지마는, 권현먕 어구 자체가 한국의 멸치 어업에서는 가장 보편화된 어구이므로, 2차적으로 활멸치를 어획하는데는 충분한 실용성이 있다고 보아진다. To catch live anchovies which will be used as bait for skipjack fishing, set net, lift net and purse seine net were tried in Korean coastal waters by the authors. Among them the former two methods showed unsuitable to catch in bulk even though the catch showed good survival. The last showed unsuitable result because of the lack of exclusive fishing boat and skilled fishermen. From the viewpoint of practical use, the authors regarded it may be suitable to improve the traditional boat seine net which are used as major fishing gear to catch anchovies in Korea, so far as Korea is concerned. So we tried to catch live anchovies with partially reconstructed boat seine net and to hold the catch in the creel improved by the authors. Even though the result showed less than 70 percent of survival, slightly worse than other fishing methods, the experimented method showed to be practical in catching the live anchovies intensively.

기선기현강의 연구 1, 재래식 어구의 유구저황과 그물꼴에 관하여

이병기,양룡림,서영태,손부일,LEE Byoung-gee,YANG Yong-rim,SU Young-tae,SON Boo-il 한국수산과학회 1971 한국수산과학회지 Vol.4 No.3,4

자루 입구의 둘레가 력자망지 150골(75m)되는 권현망어구의 $\frac{1}{10}$ 크기의 모형을 제작하여, 어구의 유분저항과 린망중의 그물꼴에 관하여 실험한 결과 다음과 같은 결론을 얻었다. 1. 모형 어구로부터 환산된 실물어구의 유분저항은 (R은 kg, v는 m/sec) 전저항 $$R_1=30,000\;v^{1.2}\;(0.2{\leqq}v{\leqq}1.0)$$ 자루 저항 $$R_2=16,000\;v^2\;(0.2{\leqq}v{\leqq}0.6)$$ 2. 예망중의 그물꼴은 (1) 오비기(extension wing) 발줄의 전 길이 중, 앞 끝부터 약 $70\%$ 까지는 직선상으로 깊어지며, 해저에 나란한 부분은 안쪽 약 $30\%$ 정도이다. (2) 수비(inside-wing)의 마깥 언저리는 예망속도가 0.2 m/sec이상 되면, 자루와 수비의 연결부 보다 더 뒤로 쏠려서, 어군을 자루로 유도하는 데 합리적인 형상이 아니다. 이것을 시정하기 위해서는, 수비의 깊이 방향의 코스를 $\frac{1}{2}\~\frac{2}{3}$ 정도로 줄이거나, 또는 그물코의 크기를 그런 정로로 줄임과 동시에, 자루 입구에서 오비기 발줄로 가는 힘줄을 넣어서 수비에는 예망장력이 적게 미치도록 하는 것이 좋다고 생각된다. (3) 앞치마(lower bosom)는 예망속도가 0.2m/sec이상 되면, 뒤끝치 들어 올려져서 수심이 깊은 어장에서는 수비에까지 유도된 어군도 이리로 해서 도피할 우려가 있다. (4) 문턱(upper bosom)의 계관 상의 경사 각도는 $35\~40^{\circ}$이다. 이것은 어군을 자루그물로 유도하게 유도하기에는 너무 크다고 보아진다. 따라서, 문턱은 좀 더길게 해서 경사 각도를 작게 하는 것이 좋다고 생각된다. (5) 자루(bag net)의 모양은 예망속도가 0.2m/sec 이상 되면, 뒤쪽이 앞쪽보다 좁아져서, 구성상 앞쪽보다 뒤쪽을 넓게한 의도가 나타나지 않는다. 따라서 자루 그물은 전체 모양이 길다란 원통형이 되게 구성하는 것이 합리적이라고 생각된다. A boat seine has been used as a major fishing gear for catching anchovy (Engraulis japonica) in the southern coastal waters of Korea since 1920s. The original seine was operated by two rowing boats as the haul seine. The rowing boats were, in recent, replaced by powered boats. The net size was enlarged by more than three times the original nit as they began to by operated in the deeper waters of approximately sixty meters. However, there are many problems in the efficiency of the fishing gear to be improved. The authors studied on the hydrodynamic resistance and performance of the boat seine net of the 1/10 scale model in tow. The results are summaried as follows. 1. The hydrodynamic resistance converted from model experiment into the full scale is: $$R_1=30,000\;v^{1.2}\;(0.2{\leqq}v{\leqq}1.0)$$ $$R_2=16,000\;v^2\;(0.2{\leqq}v{\leqq}0.6)$$ where $R_1$ and $R_2$ denote the resistance of whole gear and of bag net in kg respectively, and v the speed of flow in m/sec. 2. In the extension wing, approximately seventy percent of the length of the ground rope from the towing end to the inside-wing slopes down from sea level toward the sea bottom, while the thirty percent of the inside of it remains parallel with th: 5:a level. The performance is regarded to b: inefficient for driving fish shoal into the inside-wing, especially for the shoal diving suddenly. 3. At the towing speed higher than 0.2 m/sec, the trailing edge of the inside-wing is blown backward beyond the seaming line connecting the inside-wing and the mouth of the bag net. It is regarded as an unreasonable performance to drive the fish shoal smoothly into the bag net. 4. At the towing speed higher than 0.2 m/sec, the posterior end of the lower bosom is lifted up above the level of the ground rope of the inside-wing. It is considered that the fish shoal diving suddenly can escape through the discrepancy between the lower bosom and the sea bottom, even if the ground rope of the inside-wing sweeps the sea bottom. 5. The angle of inclination of the upper bosom is estimated as $35\~40^{\circ}$. It seems that the inclination is too steep to drive smoothly the fish shoal diving toward the sea bottom into the bag net. 6. In structure, circumference of the posterior section of the bag net is wider by 1.3 times that of the anterior section. Actually in towing at a speed higher than 0.2m/sec, however, the circumference of the posterior section becomes smaller than that of the anterior section. It is recommended to be designed in a long cylindrical form.

기선권현망(機船權現網)의 연구(硏究)-5

이병기 ( Byoung Gee Lee ),서영태 ( Young Tae Su ),이주목 ( Ju Mok Lee ) 한국어업기술학회 1980 수산해양기술연구 Vol.16 No.1

기선권현망(機船權現網)의 연구(硏究) -2 파치망(網)의 유체저항(流體抵抗)과 그물꼴에 관하여

이병기 ( Byoung Gee Lee ),서영태 ( Young Tae Su ),한희수 ( Hi Soo Han ) 한국어업기술학회 1978 수산해양기술연구 Vol.14 No.2

활멸치의 집약적(集約的) 생산수단(生産手段)에 관한 연구(硏究) -1 축양조(蓄養槽)의 예인방법(曳人方法)에 관한 실험(實驗)

이병기 ( Byoung Gee Lee ),양용림 ( Yong Rim Yang ),서영태 ( Young Tae Su ) 한국어업기술학회 1979 수산해양기술연구 Vol.15 No.1

멸치 축양의 예비시험

박승원,이병기,서영태,손부일,김무상 한국수산학회 1972 한국수산과학회지 Vol.5 No.2

定置綱과 들망에 의해 어획된 멸치를 蓄養하여 魚體 크기, 漁獲方法, 移送方法등에 따른 生殘率의 차이를 조사하였다. 1. 中形 멸치 (全長 7.8∼9.6㎝, 體重 3.6∼4.8g)를 20∼25일간 축양한 生殘率이 70∼92%였음에 비하여, 小形 멸치 (全長 5.2㎝, 體重 1.0g)는 어획후 12시간 동안의 生殘率이 16%였다. 2. 어획된 멸치를 運搬槽에 수용하여 蓄養場까지 移送할 때, 運搬槽를 曳引한 距離가 멀수록, 또 務送速力이 빠를수록 蓄養중의 生殘率이 낮다. 3. 定置網과 들망으로 어획된 멸치가 다 같이 상당히 좋은 생잔율을 보였으나, 이 두 어법 사이의 생잔율의 차이는 이번 試驗의 결과로는 단정할 수 없다. Preliminary creel-holding test of live anchovies which are to be used as bait for the skipjack fishery, was conducted on the fish caught by set net and lift net. They were held in the creels constructed with bamboo frame and minnow netting, during the period of Oct. 24-Nov. 28 in 1972. It was found that the survival rate of the creel-held anchovies varied by the size of fish, the towed distance and speed of fish-carrying creel in which the fish were accomodated after catchi. 1. The survival rate of the medium size anchovies, 7.8-9.6㎝ in length and 4.6-4.8 g in weight, was 70-92% during the holding period of 20-35 days. Whereas, only 16% of juvenile anchovies, 5.2㎝ in length and 1.0 g in weight, were survived for 12 hours after catch. 2. During the time of transport, the farther and faster the creel containing fish were towed, the less fish were survived in the subsequent holding period. 3. Though both the set net and lift net could be fairly used to catch live anchovy, no decision between these two gears could be made in this experiment to determine the superiorness for the subsequent survival rate.

액취증의 유전성에 관한 연구

추한호,김연수,서영태,방유현,이한솔 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.2

Bromidrosis is a disorder characterized by rancid body odor which influences a patient's social life and mental health. The therapeutic modalities and the mechanism of bromidrosis have been carefully studied, however, there have been few reports about the genetic inheritance of bromidrosis. We investigated the family history of 42 patients who were operated on for bromidrosis and followed up to the third generation in 10 cases. The results were as follows: *Results of investigation which were followed up the second generation. The fathers of five patients and the mothers of 11 patients had bromidrosis in 18 male patients. The fathers of six patients and the mothers of 12 patients had bromidrosis in 24 female patients. Thirty-four patient(81.0%) among a total of 42 have a single parent with bromidrosis. *Result of investigation which were followed up to the third generation Bromidrosis was occurred in 17 of 42 patients(40.5%) in the second generation, and 18 of 27 patients(66.7%) in the third generation. In one case, a father transmitted bromidrosis to his three sons, and as a result, X-linked inheritance could be ruled out Bromidrosis was not skipped in every generation of all families. We on conclude that bromidrosis is an autosomal dominant inherited disorder.