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FTA 산업별 원산지기준과 결정요인의 상대적 중요도에 관한 연구
조성장(Seong-Jang Cho),조찬혁(Chan-Hyouk Cho) 한국관세학회 2016 관세학회지 Vol.17 No.2
In any free trade agreement Rules of Origin exists to decide whether the product meets the origin requirements for preferential treatment. To maximize the benefits from a FTA, reasonable and systematized Rules of Origin should be prepared if possible. Furthermore, these Rules of origin should be consistently maintained among parties contracting a FTA. Negotiators of FTA should seriously consider the relative priority of RoO by industries, thereby taking every advantage of PTA(preferential trade agreement) benefits. This paper conducts the empirical analysis of the relative priority of FTA by four major industries: automobile industry/textiles, fabric, and clothes industry/ electric and electronic industry/ and agricultural, fishery, livestock products and related processed foods industry. The methodology used is AHP model where we focus on the desirable rules in Korean situation. The results show that automobile industry should be considered as the most important industry in FTA agreements, and that the relative priority of factors to consider in the FTA negotiation can differ by industries.
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왜매치, Abbottina springeri (Cypriniformes: Cyprinidae)의 난발생 및 자치어 형태발달
박재민 ( Jae-min Park ),유동재 ( Dong-jae Yoo ),조성장 ( Seong-jang Cho ),한경호 ( Kyeong-ho Han ) 한국어류학회 2021 韓國魚類學會誌 Vol.33 No.3
본 연구는 왜매치의 초기생활사를 밝히기 위해 충청남도 당진시 서원천에서 성어를 채집하여 인공수정을 통해 수행하였다. 왜매치 암컷의 산란량은 1,225~2,100개 (1,662±437개, n=10) 정도였다. 난의 형태는 원형으로 크기는 1.05~1.13(1.08±0.02, n=30) mm였다. 수정란은 수온 22℃에서 부화까지 72~80시간이 소요되었다. 부화 직후의 난황자어는 전장 2.10~2.23 (2.16±0.04, n=10) mm로 입과 항문은 열려 있지 않았고 난황을 가지고 있었다. 부화 후 5일째는 전장 3.29~3.45 (3.36±0.04, n=10)mm로 난황을 모두 흡수하였고 먹이를 섭취하면서 전기자어로 이행하였다. 부화 후 15일째는 전장 4.97~5.30 (5.13±0.12, n=10) mm로 척추 끝부분이 상단으로 휘어지기 시작하면서 중기자어로 이행하였다. 부화 후 25일째는 전장 8.97~9.60 (9.44±0.16, n=10) mm로 꼬리지느러미 말단 끝부분이 45°로 완전히 휘어지면서 후기자어로 이행하였다. 부화 후 35일째는 전장 12.0~13.5 (12.7±0.53, n=10)mm로 각 부위별 지느러미 기조 수 (등지느러미 iii 7개, 뒷지느러미 iii 6개, 배지느러미 i 7개)가 정수로 도달하면서 치어기로 이행하였다. This study was carried out to clarify the egg, larvae and juveniles development of Abbottina springeri. For the experiments, the matured adults were collected at the Seowon-cheon, Dangjin-si, Chungcheongnam-do, in Korea. The amount of spawning of female A. springeri was about 1,225~2,100 (1,662±437, n=10). The fertilized eggs were circular in shape and 1.05~1.13 (1.08±0.02, n=30) mm in diameter. The hatching time was required 72 hours to 80 hours after fertilization under water temperature of 22℃. The newly hatched larvae were 2.10~2.23 (2.16±0.04, n=10) mm in total length and had egg yolk in the abdomen but the mouth was not opened. At 5 days after hatching, the preflexion larvae were 3.19~3.30 (3.24±0.03, n=10) mm in total length and the most of yolk-sac was absorbed. At the 15 days after hatching, the flexion larvae were 4.97~5.30 (5.13±0.12, n=10) mm in total length and the tip of the caudal fin was began to bend upward. At the 25 days after hatching, the postflexion larvae were 8.97~9.60 (9.44±0.16, n=10) mm in total length and the tip of the caudal fin was bent at 45°. At the 35 days after hatching, the juvenile were 12.0~13.5 (12.7±0.53, n=10) mm in total length and all fin-rays (iii7 dorsal fin, iii6 anal fin, i7 ventral fins) were reached a constant number of each part.
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낙동납자루 (Tanakia latimarginata)의 초기생활사
박재민 ( Jae-min Park ),전형배 ( Hyung-bae Jeon ),조혜인 ( Hye-in Jo ),조성장 ( Seong-jang Cho ),석호영 ( Ho-young Suk ),한경호 ( Kyeong-ho Han ) 한국어류학회 2018 韓國魚類學會誌 Vol.30 No.2
이 연구는 우리나라 고유종인 낙동납자루의 초기생활사를 연구하여 분류학적 연구의 기초자료로 이용하고자 한다. 낙동납자루는 수컷의 뒷지느러미 가장자리 검은색 띠가 짙고, 암컷의 산란관이 오렌지색을 띠는 것으로 알려져 있다. 난의 형태는 방추형이었고, 난경은 (장경×단경) 4.41×1.44 mm였다. 부화에 소요되는 시간은 수온 21.0°C일 때 126시간이 소요되었다. 부화 직후의 자어는 난황을 가지고 있으며, 평균 전장은 5.91±0.18 mm (n=5)였다. 부화 후 18일째에는 꼬리지느러미가 발달하였고, 평균 전장은 8.02±0.08 mm (n=5)였다. 부화 후 41일째 자어는 난황을 대부분 흡수하였고, 평균 전장은 8.70±0.23 mm (n=5)였다. 부화 후 80일째 자어는 지느러미 기조 수가 정수에 달하였고, 평균 전장 12.6±0.28mm (n=5)였다. 지느러미 기조 수는 등지느러미 ⅲ.8개, 뒷지느러미 ⅲ. 9~10개, 꼬리지느러미 19개, 측선비늘 수 32~35개로 어미와 유사하였다. This study is to observe species identification and early life history of Korean endemic species of Tanakia latimarginata and to use it as a basis for taxonomic studies. As a result of morphological identification, a dark band appeared at the margin of the anal fin, and the ovipositor color of the female was light orange. The shape of the egg was fusiform and sticky. The egg size (long×short diameter) averaged 4.41×1.44 mm. The incubation time was 126 hours after the fertilization at an average water temperature of 21.0°C. Immediately after hatching, the larvae had egg yolk at an average total length of 5.91±0.18 mm (n=5). At 18 days after hatching, the trunk fur was developed in the caudal fin with an average total length of 8.02±0.08 mm (n=5). At 41 days after hatching, the larvae absorbed egg yolk at an average total length of 8.70±0.23 mm (n=5). At 80 days after hatching, the average length of the fins was 12.6±0.28 mm (n=5). The number of fin of the dorsal fin was iii.8, the anal fin iii.9~10, the caudal fin 19, lateral line scales 32~35 were similar to their brood stork.
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한국 고유종 미유기 (Silurus microdorsalis Mori, 1936)의 난 발생 및 자치어 형태발달
김강래 ( Kang-rae Kim ),곽영호 ( Yeong-ho Kwak ),성무성 ( Mu-sung Sung ),양현 ( Heon Yang ),조성장 ( Seong-jang Cho ),윤봉한 ( Bong Han Yun ),방인철 ( In-chul Bang ) 한국어류학회 2023 韓國魚類學會誌 Vol.35 No.2
The early life history of Silurus microdorsalis living in Jahocheon Stream was studied by observing egg and morphological development. Live fish were captured in June 2018, then reared in a circulating filtration system under a 14L : 10D photoperiod with a water temperature of 18℃. To artificially induce spawning, females were injected with 0.5 mL of Ovaprim (Syndel, Nanaimo, BC, Canada) per kg of body weight, and males were injected with 10,000 IU/kg body weight of human chorionic gonadotropin. Approximately 15 h later, eggs were artificially inseminated by the dry method. Mature eggs were light pale yellow, which separated them from immature eggs. Fertilized eggs were 2.16±0.06 mm (n=8) in diameter and fully hatched at 181 h after fertilization. The fertilization rate was 63.1±2.2%, and 10.0±3.7% of the embryos were malformed at 18℃. The rates of development were 181 h at 18℃, 109 h at 21℃, and 76 h at 24℃. The larval size immediately after hatching was 4.64±0.22 mm (n=8), and the larvae displayed negative phototaxis at 1 day after hatching. The total larval length on 7 days after hatching was 12.47±0.53 mm, with 25~30 basal anal fin rays and 14~16 basal caudal fin rays observed. The total larval length was 14.13±0.51 mm on 9 days after hatching, and approximately 90% of the black endoplasmic reticulum was deposited on the head and body. The dorsal fin had formed, and a single basal body was observed. On 15 days after hatching, the total larval length was 16.69±0.31 mm; the number of basal caudal fin rays (18 poles) was an integer because 2 dorsal fin basal rays and 60~63 anal fin basal rays were observed. The total larval length was 28.96±1.10 mm on 50 days after hatching; the numbers of caudal fins (n=18), dorsal fins (n=3), pectoral fins (n=11), and anal fin basal rays (n=67~73) were integers.
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