• Title/Summary/Keyword: 연안조망

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Fishing Characteristic of Beam Trawl Fishery in the Coastal Waters of Chungnam Province, Korea (충남 연안 조망어업의 어획특성)

  • Kim, Si-Yeop;Im, Yang-Jae;Jo, Hyun-Su;Cha, Byung-Yul;Kwon, Dae-Hyeon;Hwang, Hak-Jin
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.19 no.5
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    • pp.459-466
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    • 2013
  • To understand the fishery characteristics by a beam trawl off the coast of the Chungnam province, covering $125^{\circ}$ 50'~$126^{\circ}$ 05'E, $36^{\circ}$ 15'~$36^{\circ}$ 25'N, a beam trawl was deployed 2~4 times a month from March 2008 to February 2009. The catch was consisted of 96 species of 63 families belonging to 19 orders. Among these, organisms were identified as 54 species of fish, 27 species of crustaceans, 9 species of gastropoda, bivalves, and 6 species of cephalopods. Trachysalambria curvirostris which is the target species of the beam trawl fishery occupied only 2.1% of the total catch, showing a low ratio of catches. Most of T. curvirostris was harvested from July to November while small amount of T. curvirostris was captured from May to December. In this study, we concluded that the bycatch ratio except T. curvirostris in T. curvirostris fishery was relatively high, thus the fishery of T. curvirostris might affect the fishery resource management of bycaught species off the coast of Chungnam province.

새우조망에 어획된 대롱수염새우의 망목선택성

  • 오택윤;조영복;박광제;김민석;김형석;이주희
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.78-79
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    • 2003
  • 새우조망어업은 일정한 구획(해역) 안에서 행하는 어업으로 2002년까지 전라남도 557건, 경상남도 316건의 허가 정수가 구획별로 설정되어 있다. 이와 같은 새우조망어업은 우리나라 연안에 서식하는 새우류에 대한 다양한 연구 결과에서 해역에 따라 서식하는 종과 체장이 다른 것을 보고하고 있지만, 수산자원보호령 6조에서는 지역에 따른 분포 특성과 생물학적 특성을 무시하고 망목 내경 15mm 이하의 것을 사용을 금지하고 있다. (중략)

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동북아지역 주도권 강조한 미래예측서 독자들 관심끌어

  • Lee, Seong-Su
    • The Korean Publising Journal, Monthly
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    • s.137
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    • pp.16-16
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    • 1993
  • 많은 미래예측서들 중에 동남아를 중심으로 한 태평양 연안의 발전을 낙관적으로 조망한 책들이 다수 끼어 있다. 미래의 바다로 예견되는 태평양권의 발전은 일본을 비롯한 '네 마리 용'의 역할에 따라 변화가 예상된다는 것이 필자들의 한결같은 주장이다. 한편 한반도의 통일이 국제정치와 경제에 많은 영향을 끼칠 것이라는 예견도 있어 관심을 끈다.

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The Study of Wave and Current due to Submerged Structure (잠제인근에서의 파랑변형 실험 연구)

  • 김효섭;정병순;윤석준
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 2003.08a
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    • pp.294-297
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    • 2003
  • 해양에 존재하는 인공 구조물들은 주로 해수의 흐름(파랑 및 연안류)에 의해 발생하는 현상들을 조절하기 위하여 설치된다. 그 중에서 수중에 위치하여 해수의 흐름과 파의 에너지를 조절하는 잠제의 경우는 미관상으로 수중에 잠겨있어 조망권 확보가 가능하며, 표사이동을 차단하는 수중보 역할, 어초보호 기능의 수행 등 그 기능면에서 매우 실용적인 구조물이라 할 수 있다. (중략)

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Distribution of Cephalopods in the Yellow Sea, Korea (우리나라 서해에 분포하는 두족류의 출현양상)

  • Kim, Yeong-Hye;Kim, Jeong-Nyun;Kim, Jong-Bin;Lee, Dong-Woo
    • The Korean Journal of Malacology
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    • v.26 no.1
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    • pp.85-89
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    • 2010
  • Distribution of Cephalopods was investigated in the Yellow Sea, Korea from February, 2006 to November, 2008. The species composition of cephalopods, consisting of 14 species and 19,789 individuals has been identified. The dominant species of the Yellow sea was Euprymna morsei. The dominant species of the northern part, middle part and southern part were Todarodes pacificus, Loligo spp. and Loligo beka.

A study on the Residential Satisfaction of Environmental Condition for Housing Complexes located in Coastal Areas (연안역에 입지하는 주거단지 생활자의 거주환경 만족도에 관한 연구)

  • Lee, Myung-Kwon
    • Journal of Navigation and Port Research
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    • v.32 no.6
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    • pp.505-513
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    • 2008
  • Regarding the developmental plans for the coastal areas and marine architectures, this study deal with the overall planning of apartment complexes in waterfront areas, focusing upon the analysis of their comfort and convenience factors from the perspective of the potential residence. It also analysis the intra-complex comfort and satisfaction conditions in terms of their floor-by-floor, directional. and location factors. The results of the study are as follows: 1) The order of respondents' preference on directional factor has been found to be: South > Southeast > Southwest > East > others. 2) 67% of the people surveyed on scenery responded that outward view is considered more significant than the directional factor. 3) A comprehensive analysis of floor zone-specific view preference shared that there were only minor differences among quay wall, arc, and river-seashore types. The impact of the characteristics of the marine environments turned out to be a greater point of consideration; showing that the other of floor-preference is: high-level > ultra-high level > middle level > low level.

진도군 주변해역의 새우조망 어획물의 종 조성과 계절변동

  • 장대수;김영혜;오택윤;고정락;차형기
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.10a
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    • pp.358-359
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    • 2001
  • 우리나라 남해 서부 해역에 위치한 진도군 해역은 동부는 남해, 남부는 제주해협과 인접한 다도해로서 그 수심은 50m내의로 말은 천해역을 이루고 있다. 이 해역은 황해저층냉수, 황해난류수, 한국 남ㆍ서 연안수, 양자강 희석수 등 계절에 따라 이들 수계의 영향을 받고 있어 이들 수계간에 형성되는 조경역의 변동이 어장 형성에 영향을 미치는 한편, 부어류의 호어장을 형성한다(Gong and Cho, 1972). 또한 년도별 계절별 해황의 변동과 황해저층냉수의 소장에 따라 갈치, 삼치, 병어 등 주요 수산자원의 풍흉에 영향을 미치는 해양 환경적 특성을 지니고 있다. (중략)

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Seasonal Fluctuation in Abundance and Species Composition of Fish Collected by a Beam Trawl in Coastal Waters off Samcheonpo (삼천포 연안에서 새우 조망에 어획되는 어류 종조성 및 계절변동)

  • Yu, Tae-Sik;Lee, Seong-Hoon;Kim, Sa-Jo;Kwon, Jin-Goo;Han, Kyeong-Ho
    • Korean Journal of Ichthyology
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    • v.32 no.3
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    • pp.160-165
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    • 2020
  • Seasonal fluctuation in abundance and species composition of fish in coastal waters off Samcheonpo were investigated using seasonal samples collected by a beam trawl in 2019 to compare the variation of species composition and dominant species with previous studies. A total of 6,518 fish were sampled and classified into 44 species, 30 families, and 6 orders. The dominant species were Nuchequula nuchalis (1,542 individuals, 23.7%), Platycephalus indicus (529 individuals, 8.1%), Thryssa kammalensis (437 individuals, 6.7%), Argyrosomus argentatus (403 individuals, 6.2%), and Acanthogobius flavimanus (354 individuals, 5.4%). The highest number of individuals was found in July (2,385 individuals), while the lowest number of individuals was found in January (925 individuals). The diversity index was the highest in April (H'=2.733) and the lowest in July (H'=2.546).

Species composition and community structure of aquatic organisms caught by the coastal beam trawl in the Gomso Bay, Jeollabuk-do of South Korea (전라북도 곰소만 연안조망에 어획된 수산생물의 종조성 및 군집구조)

  • Young-Hwan JOO;Sang-Chul YOON;Ji-Hoon CHOI;Myounghee KANG;Jin-Koo KIM;Hyun-Su JO
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.60 no.2
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    • pp.101-113
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    • 2024
  • This study investigated the species composition and community structure of aquatic organisms captured using coastal beam trawling in Gomso Bay, Jeollabuk-do, from January to December 2022. Throughout the experimental period, a total of 20,246 individuals belonging to 94 marine species were captured, with a combined biomass of 602,828 g. Fish exhibited the highest abundance, comprising 56 species, followed by crustacea (21 species), bivalvia (8 species), cephalopoda (5 species), gastropoda (3 species), and holothuroidea (1 species). The dominant species was Leiognathus nuchalis, constituting 14.0% of the total individuals, followed by Portunus trituberculatus at 12.1%, Oratosquilla oratoria at 10.4%, Crangon hakodatei at 9.9%, and Metapenaeus joyneri at 7.9%. The diversity index ranged from 1.72 to 2.55, with the lowest diversity observed in March and the highest in July. Cluster analysis based on species composition of the 27 most common species showed that aquatic organisms were divided into three groups: spring and summer organisms (Group A) and summer organisms (Group B) and autumn and winter organisms (Group C).

Species composition of bycatch in the shrimp beam trawl fishery of coastal Sacheon, Korea (사천 연안 새우조망에서 부수 어획된 어류의 군집구조)

  • SONG, Se Hyun;JEONG, Jae Mook;YOO, Joon Taek;KIM, Hee Yong
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.54 no.3
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    • pp.204-216
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    • 2018
  • A study for species composition and abundance of the fish assemblages in the coastal Sacheon Bay, Korea were conducted using monthly collection by a shrimp beam trawl from March 2015 to February 2016. The number of individuals, biomass and species diversity indices fluctuated with the station and month. Of all 73 species collected, the dominant species in terms of numbers were Liparis tanakae, Zoarces gillii, Amblychaeturichthys hexanema, Ricuzenius pinetorum and Pleuronichys cornutus. The peak number of fishes occurred in March and April, whereas the biomass of fishes was highest in April. The numbers and biomass of fishes were lower in February corresponding with the low temperature, and diversity indices were highest in June. Due to those seasonal difference in abundance of the dominant species, fish community were divided into three main groups. In addition, seasonal difference by station of fish community were devided into four main groups. Juvenile fishes of coastal Sacheon were presented during the study period. It presented that the study area served as an important role in spawning and nursery ground for fisheries resource.