• 한국어류학회지
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• 제28권3호
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• pp.147-155
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• 2016

This study describes the cell type, ultrastructure and histochemical characteristics as a preliminary study for the research on integument of the smooth lumpsucker, Aptocyclus ventricosus in accordance with the physiological and environmental changes using light and electron microscopes. The SEM revealed the presence of well-developed finger printing structure in the skin surface. The skin surface of the smooth lumpsucker showed an irregular folds in cross section of light microscope. Integument is composed of outer epidermal and inner dermal layer. The epidermal layer is a stratified layer composed of epithelial cells, mucous cells, vacuolar cells, and granular cells. Epithelial cells are classified into superficial, intermediated, and basal cell. The superficial cells were the squamous with well-developed microridges on the free surface, and the microridges were covered with glycocalyx. The mucous cells of unicellular gland were mainly distributed in the apical layer of epidermis and contained mucosal materials of neutral glycoprotein. The vacuolar cells of unicellular gland were mainly distributed in the mid and basal layer of epidermis. The proportion of mucous cells and vacuolar cells were $7.0({\pm}1.07)%$ and $40.6({\pm}3.31)%$ of epidermal area, respectively. The granular cells contained membrane bounded secretory granules with high electron density and developed cell organelles in the cytoplasm. The dermal layer was loose connective tissue layer and composed of mainly collagen fibers. It also contained blood vessels and chromatophores of melanophores and reflecting platelets.

• 한국양식학회:학술대회논문집
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• 한국양식학회 2006년도 수산관련학회 공동학술대회 발표요지집
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• pp.267-268
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• 2006

• 한국수산과학회지
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• 제53권6호
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• pp.809-815
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• 2020

The food components of the muscles and roes of the smooth lumpsucker Aptocyclus ventricosus and korai bikunin Liparis ingens from the East Sea, Korea were determined. The proximate composition of the muscles of the smooth lumpsucker was 88.35%, 8.30%, 2.24%, and 1.08% and that of the korai bikunin was 91.62%, 6.88%, 0.45%, and 1.15% of moisture, protein, lipid, and ash, respectively. The roes of the smooth lumpsucker contained 83.25%, 11.28%, 3.65%, and 1.07% moisture, protein, lipid, and ash, respectively, whereas for korai bikunin, it was 81.53%, 15.09%, 1.97%, and 1.14%, respectively. The prominent fatty acids of the muscles were 16:0, 18:0, 18:1n-9, 18:1n-7, 20:4n-6, 20:5n-3 (eicosapentaenoic acid, EPA), and 22:6n-3 (docosahexenoic acid). The prominent fatty acids of the roes were similar to those of the muscles, although showing a higher ratio of EPA than that of the muscles. The major amino acids in the muscles were glutamic acid, lysine, leucine, and arginine, whereas they were glutamic acid, aspartic acid, leucine, serine, and arginine in the roes.

• 한국수산과학회지
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• 제47권6호
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• pp.945-959
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• 2014

This study was conducted to provide basic data for optimal fisheries management through the accurate understanding the catches, fishing level, species composition, distribution characteristics and fisheries status of trammel net in Gangwon Province. As the results of trammel net survey, Pisces were collected 77 species, 1,983.0 kg, Crustacea 9 species, 569.0 kg, Cephalopoda 5 species, 75.3 kg, Gastropoda 12 species, 16.5 kg in the coastal waters of Sokcho and Pisces 55 species, 3,681.5 kg, Crustacea 6 species, 2,229.8 kg, Gastropoda 10 species, 72.8 kg, Cephalopoda 4 species, 10.1 kg in the coastal waters of Donghae, respectively. The catches of important species with season and depths showed that the main target species is Pleuronectidae spp. at all depth and Aptocyclus ventricosus at <100 m in Sokcho, Liparis spp. and Dasycottus setiger at 200-500 m in Donghae, respectively. The mean total length (cm) of Gadus macrocephalus and Aptocyclus ventricosus didn't appear significant difference, but the mean total length of Pleuronectidae spp., Liparis spp. and D. setiger in Donghae is bigger than in Sokcho. From the cluster and MDS analysis based on Bray-Curtis similarity matrix of fourth root transformed, catches data of dominant species in the coastal waters of Sokcho and Donghae was divided into three different groups of the demersal organisms community in 12 survey of Donghae (Group A) and Jul., Oct.-Dec. survey of Sokcho (Group B) and Jan.-Jun. and Aug.-Sep. survey of Sokcho (Group C).

• 한국수산과학회지
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• 제20권2호
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• pp.157-165
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• 1987

1960년 1월 16일 강원도 명주군 옥계면 금진삼리 앞 500m 해상에서 삼중자망으로 채포한 쪽지를 사용하여 선상에서 인공수정시킨 후 실험실로 운반 사육하면서 난발생과정 및 자치어의 형태에 대하여 관찰한 결과를 요약하면 다음과 같다. 수정란은 난경이 $2.28\~2.36\;mm$로서 담유백색을 띤 구형의 침성점착란이다. 수체내의 사육수온은 $7.5\~21.4^{\circ}C$ 범위였으며 수정후 725시간만에 부화하였다. 부화직후의 자어는 전장이 $6.0\~6.9mm$로서 머리와 몸통이 크며, 배지느러미가 변형된 흡반이 형성되어 있고 수많은 흑색소포가 머리와 몸통부분에 발달한다. 부화후 17일째의 자어를 전장이 9.1 mm이며 아가미구멍은 가슴지느러미 기저 윗부분을 제외하고는 융합되어 있고, 꼬리위에도 흑색소포가 나타난다. 부화후 31일째의 자어는 전장이 10.6mm로서 각 지느러미 기조수가 정수에 달하여 치어로 되며, 제1등지느러미 가시는 소실된다. 부화후 103일째의 치어는 전장이 $15.4\~17.5mm$ 이다.