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RISS 인기검색어
- 검색키워드
- 저자 : 鄭與基 (검색결과 3 건)
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鄭與基 군산대학교 1979 群山水産專門大學 硏究報告 Vol.13 No.3
From 1977 to 1978, the examined distribution of fishing ground by stow net and fishing products in our country are as follows ; 1.Total products figured 164,538□, per vessel 9.9□, C.P.U.E 0.45□ 2.Among the operating areas 224, 248 and 207 sector showed the longest quantities of product, 1,351-13,362kg, and the inactive 180, 201, 231 sectors showed 3-6kg 3.During Winter and Summer the seasons for stow net showed rich fishing Products in the Yellow Sea and the East China sea, but did dullness in Spring. 4.The fishing products for each kind, figurred 27.7% of hair tail, 23.3% of others, 29.7% of file fish, 12.9% of squid, 3.2% of pomfret and 2.1% of starks.
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李吉來,鄭與基,裵錫悌 군산대학교 1977 群山水産專門大學 硏究報告 Vol.11 No.1
We have investigate following subjects relating to training the ocean -going liscensed officer connecting with improvement of liscense systm. 1)In the merchant marine course, The employment has been increased on acc-ount of national support, cooperation industry connected, increase of domestic vessel, overseas of employment, however, In a fishery course are anticipated producing large number of ocean going licensed offilcer by reason of the depr-essing of deep sea fishery, chang in situation, increase of student capacity. 2)It is important to take clear aim to the student in the fisheries educational facilities and It will profitable the fisheries educational target are composed of practical skill 50%, personality 50%. 3)We must set up the scholorship system, to form connection with affiliated company and strengthen co-operation of enter-prise and educational organization in order to secure the superior ocean-going lescensed officer. 4)The restricted liscense (concerning to the fishing boat) shall be abolished for the sake of eliminate present conflict.
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鮟鱇網 漁具 漁法의 改良에 관한 硏究(Ⅱ) : 展開帆을 이용한 改良漁具 試驗(豫報)
李吉來,宋之浩,朴鍾洙,徐萬錫,趙鳳坤,朴正鎬,洪聖根,鄭公炘,裵錫悌,鄭與基,金鎭乾 군산대학교 1980 群山水産專門大學 硏究報告 Vol.14 No.1
Ordinarily stow net fisheries was used by floater beam and sinker beam for the purpose of spreading the mouth of net. But it was not only iuconvenient and dangerous but much defective. In this thesis, we have studied fundermental experiment of the improved stow net fishing gear using head rope, ground rope and otter sail instead of floater beam and sinker beam. From the result of this experiment, it has been succeeded for fishing work to achieve basically without any difficulty. The results obtained in this study were as follows. 1) The resistance of fishing gear was estimated R≒7V2 as possible as it is taken greatly. (R: Resistance V: the rate of current) 2) The interval of otter sail was spreaded smoothly. Being in normal condition, it was maintamed the width 37-38m. It was heared comparison with net mouth of ordinary gear, and the shearing force was enough. 3) The height of mouth was lower than we have anticipated to and seemed to have the supplement of buoyancy. But according to increasing the rate of current, the lowness of mouth height was little affected. 4) The height of otter sail was decreased at the rate of 30% by the rate of current, on the contrary, the height of wing was not decreased owing to sufficient buoyancy, 5) The adjustment of extention length of hanging wire(connected with fishing boat) and raising wire(with otter sail) was great important problem and it must be dealed with the most moderatly because of a corelation between the spreading of fishing gear and catching ability. 6) On the depth of 30m, it was taken 25 minuits to cast anchor and lines, 20 min cast net, 24 min haul net, 45 min haul lines and heave anchor, respectively. 7) The improved stow net with otter sail was cleared up the defects and difficult problems in ordinary gear using floater beam and sinker beam, and it have more advantages of fishing work than ordinary one. But there were involved in lots of problems in details to solve in the future.
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