• Korean Aquaculture
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• v.15 no.1
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• pp.86-90
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• 2003

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.10a
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• pp.199-200
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• 2000

제주연안은 태풍 및 겨울철 북서풍의 영향으로 일부 항만 내를 제외하고는 가두리가 극미한 실정으로서 광활한 바다의 능동적인 이용을 위하여 해양수산부(해양수산 개발원)의 특정연구개발사업의 일부 지원을 밭아 연구를 수행하였다. 외국의 사례를 보면 북대서양연안의 극심한 해양환경(파고 20m)을 고려한 TLC(Tension Leg Cage) 시스템을 노르웨이 Marintek에서 개발하였으며[1], 일본의 경우는 수심이 깊고 만이 많은 해역을 고려한 부침식 전복 양식시스템을 개발하였고[2], 이스라엘에서는 반잠수식 가두리 양식시스템을 개발하였다[3].(중략)

• Korean Journal of Ichthyology
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• v.35 no.4
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• pp.340-346
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• 2023

The diet composition of Engraulis japonicus were studied using 1,087 specimens collected by set net fisheries and boat seine fisheries in the coastal waters of Tongyeong, Korea. The size of the specimens ranged from 1.9 to 14.7 cm in fork length. E. japonicus was fed mainly on Copepods, which constituted 50.4% of IRI, followed by Euphausiids, which constituted 47.3% of IRI. Graphical analysis of the diet composition showed that E. japonicus was specialist predator. The result of analysis in ontogenetic changes significantly exhibited among size classes (<8.0 cm, 8.0~10.0 cm, 10.0~12.0 cm, ≥12.0 cm). The proportion of Euphausiids increased, as body size of E. japonicas increased whereas the consumption of Copepods decreased. In the Spring, Autumn and Winter, the diet was dominated by Copepods. In the Summer, the diet was dominated by Euphausiids.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.261-262
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• 2001

가막만은 한국 남해안 중앙 부분에 위치한 반 폐쇄적인 작은 내만으로 육상으로부터 영양염 공급이 원활하여 기초생산력이 매우 높기 때문에 오래전부터 해양 생물의 증ㆍ양식이 활발히 성행하고 있다. 북쪽과 중앙 해역에는 수하식 패류양식(홍합, 굴)이 성행하고 있는 반면 만 입구에 위치하는 화태도, 송도, 월호도 등에서는 가두리 어류양식이 최근 성행하고 있다. 또한 최근 만내는 부영양화등 해양환경 변화에 따른 적조 상습해역으로 변화하여(국립수산진흥원, 1998), 막대한 수산 피해를 발생시키고 있다. (중략)

• Korean Journal of Fisheries and Aquatic Sciences
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• v.54 no.6
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• pp.1000-1006
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• 2021

The maturity and spawning of the common octopus Octopus vulgaris were studied using 317 samples collected monthly from January to December of 2020 from the coastal waters of Yeosu, Korea. The mantle length (ML) of O. vulgaris ranged from 5.1 to 19.7 cm and body weight (BW) ranged from 117.6 to 3,645.4 g. We analyzed monthly changes in sex ratio, gonadosomatic index (GSI), histological maturity stage, and body weight at 50%, 75% and 97.5% group maturity. The sex ratio was 1:1.02, which was not significantly different from the value that expected. Based on histological observation of the gonad development and gonadosomatic index, the spawning periods lasted throughout the year, with peak spawning periods estimated from March to April and July to August. The percentages of sexually mature females estimated using a logistic equation were over 50% at 554.46 g BW, 75% at 1,134.38 g BW and 97.5% at 2,474.22 g BW respectively.

• Korean Journal of Ichthyology
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• v.34 no.2
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• pp.113-118
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• 2022

The feeding habits of sandfish, Arctoscopus japonicus were studied using 781 specimens collected by Eastern Sea Danish and gill net from January 2020 to December 2021 in the coastal waters of East Sea, Korea. The size of the specimens ranged from 14.8 to 25.4 cm in total length. A. japonicus were fed mainly on amphipods that constituted 54.7% in IRI. Cephalopods were the second largest prey component. The diets also include small quantities of euphausiids, crabs, shrimps, fishes, and worms. The diet composition of A. japonicus showed changes in season. The cephalopods feeding rate was highest in summer, whereas the proportion of euphausiids was higher in spring than in other seasons. The proportion of cephalopods has increased as the body size of A. japonicus increased, whereas the proportion of amphipods and euphausiids decreased gradually. As the body size of A. japonicus increased the mean weight of prey per the stomach (mW/ST) tended to increase significantly (One-way ANOVA, P<0.05).

• Korean Aquaculture
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• v.12 no.1
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• pp.77-83
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• 2000

• Korean Aquaculture
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• v.13 no.2
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• pp.75-81
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• 2001

• Proceedings of the Korea Port Economic Association Conference
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• 2003.07a
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• pp.359-367
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• 2003

21세기 해양시대를 맞이하여 선진 해양수산 경남으로의 발전 도약을 위하여 2002년부터 2006 년까지 5개년에 걸쳐 지역특성을 살린 자율적이고 미래지향적인 해양수산업 및 삶의 질이 향상되는 해양수산종합발전계획을 수립하였다. 해양수산업의 현 실태는 대외적으로는 신 해양질서의 재편, 대내적으로는 해양환경오염 등으로 어업여건이 악화되고 있으며, 또한 체계적인 어업관리 미비로 인하여 잡는어업 관리의 문제점이 노출되었다. 양식어장 관리부실 및 수산물 수입 급증으로 양식기반이 위축되고, 소득기반 및 정주환경 열악으로 탈어촌ㆍ노령화 현상이 가속화되고 있는 실정이다. 이와 같은 문제점을 극복하기 위해 연근해 어업의 구조조정 및 어업자원 관리를 통해 연근해어업의 경쟁력을 강화시키고, 기르는 어업의 육성과 연안어장 목장화 및 쾌적하고 생명력 넘치는 해양환경 조성으로 수산물 생산량을 향상시키는 수산업에 대한 종합발전계획을 수립하였다. 또한, 수산물 수출촉진과 유통혁신 및 가공산업 현대화를 통해 수산물 가공업의 영세성을 탈피하여 풍요롭고 활력이 넘치는 어촌개발, 해양레져타운 건설 및 선진 어업인을 육성하기 위한 해양산업발전계획도 수립하였다.

• Korean Journal of Ichthyology
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• v.34 no.3
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• pp.201-207
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• 2022

Total 418 Yellow Croaker Larimichthys polyactis were examined and the range of total length (TL) was 12.0~27.5 cm and average total length was 19.6 cm. The most important prey component in the diets of L. polyactis was Pisces that constituted 46.5% in %IRI (Index of relative importance). Euphausiacea was the second largest prey component. The result of analysis in ontogenetic and seasonal changes significantly exhibited. The proportion of Pisces increased as increasing body size, whereas the consumption of Macrura decreased gradually. The diets also were different among seasons, with the difference particularly being evident between warm (summer and autumn) and cold (winter and spring) seasons. Permutational multivariate analysis of variance (PERMANOVA) revealed significant dietary differences by seasons (P=0.001).