• 제목/요약/키워드: Sea turtle

검색결과 17건 처리시간 0.02초

부산광역시 해안 무인도서의 보전(保全)과 활용 (Preservation and Utilitization of Uninhabited Islets in Busan Metropolitan City)

  • 김항묵;유제우
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2009년도 공동학술대회
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    • pp.475-486
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    • 2009
  • 목도의 지질조사가 한국 역사상 이번에 처음으로 수행되었다. 목도가 중생대 말기 약$7,000{\sim}8,000$만년 전에 성층화산으로 분출하여 화산원형이 개석됨으로서 현재는 Planeze 단계를 지나 골격단계에 이른 것으로 밝혀졌다. 추후에 정밀조사를 한다면 분화구 자리도 찾아질 수 있을 것이다. 목도에는 50m고도에 해성단구면이 있다. 이는 제4단구면에 대비되고 홍적세 후기에 생성된 것으로 추정된다. 목도의 해안에 발달한 해안의 미지형으로는 해안단구, 해식애, 해식동, 파식대, 해안석주, 낭식장, 타포니(풍화혈) 등이 발견되었다. 목도는 산경도(山徑圖)에 표시되어 있는 낙동정맥의 남방 연장선 위 몰운대 앞바다에 위치하며 "물에 뜬 거북이"형국(부해금귀형(浮海金龜形)) 혹은 "물에서 나오고 있는 거북이"형국(출수금귀형(出水金龜形))이다. 목도의 도서명은 그 정체성을 위하여 "유구도"(游龜島) "남구도"(南龜島) "회구도"(廻龜島)중에서 선택하여 개칭할 필요가 있다. 목도는 부산의 관광수요를 위한 새로운 관광명소로 발전, 개발되는데 필요한 관광자연배경을 충분히 가지고 있으며, 앞으로 이 무인도서가 분산의 등대섬, 그리고 유,무인도서라 연계하여 해양관광을 개발한다면 새로운 관광지로서 행양수도발전에 지대한 영향력을 가질 수 있다고 평가되었다. 목도의 주변해역에 해양수족관과 해초정원을 조성하고 수목원을 조성하며 기타 해양문화공간조성의 종합기본계획이 이 연구에서 완성되었다.

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국내 바다거북류의 출현 현황과 주요 출현 2종의 형태적 특징 (Occurrence of Sea Turtles in the Korean Waters and the Morphological Characteristics of Two Major Species)

  • 김일훈;문대연;조인영;김민섭;안용락;한동욱;한원민;한동진;박대식
    • 한국수산과학회지
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    • 제50권3호
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    • pp.311-318
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    • 2017
  • Four species of sea turtles (Chelonia mydas, Caretta caretta, Dermochelys coriacea, and Eretmochelys imbricata) have been recorded in Korean waters. However, nationwide surveys on the distribution and occurrence of each species have rarelybeen conducted in Korean waters. In this study, we comparatively analyzed the trends in occurrence of sea turtles and their morphological characteristics based on 148 reliable observations and stuffed specimen data and suggested Korean names for each species. Chelonia mydas (57 cases, 58.8%) and C. caretta (52 cases, 31.5%) were dominant species, and occupied > 90% of all observations. Most of observations of sea turtles in Korean waters were obtained through stranding (61 cases) and incidental catches (62 cases). A coastal set net was the main fishing gear for incidental catches (82%). Sea turtles were found mainly around Jeju-do and the Korea Strait from June to November. Most C. caretta found were adults, whereas most C. mydas were juveniles. Additionally, we provide detailed morphological characteristics of C. mydas (n=8) and C. caretta (n=4) using stuffed specimens. Finally, based on a literature search, we suggest appropriate Korean names, such as "Pureunbada-geobuk" for C. mydas, "Bulgeunbadageobuk" for C. caretta, "Jangsu-geobuk" for D. coriacea, and "Maeburibada-geobuk" for E. imbricate.

인도양 해역 우리나라 원양 연승어업의 어획물 종조성과 어획동향(2010-2015년) (Species Composition and Catch of Korean Tuna Longline Fisheries in the Indian Ocean from 2010 to 2015)

  • 구정은;이성일;김두남
    • 한국수산과학회지
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    • 제51권3호
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    • pp.286-297
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    • 2018
  • We analyzed scientific observer data to identify species composition and catch trends of Korean tuna longline fisheries in the Indian Ocean. The data were collected by Korean scientific observers onboard Korean tuna longline fishing vessels in the Indian Ocean from 2010 to 2015. The observers identified 94 species including 5 tuna, 6 billfish, 11 shark, 7 other fish, 5 seabird and 1 sea turtle. Albacore tuna Thunnus alalunga and southern bluefin tuna Thunnus maccoyii were the dominant tuna species, and swordfish Xiphias gladius were the most commonly captured billfish. During the survey periods, 87 seabirds were incidentally bycaught. Black-browed albatross Diomedea melanophris was the dominant seabird species in bycatch, especially in 2010. Cluster analysis showed difference in the species composition of catches between the eastern and western Indian Ocean.

'DNS피오나지' 공격의 진화에 따른 대응방안 (Attack Evolution of 'DNSpionage' and Countermeasures on Survey)

  • 홍성혁
    • 융합정보논문지
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    • 제9권9호
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    • pp.52-57
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    • 2019
  • DNS는 'Domain Name System'의 약자로, 네트워크 상에서 네트워크에 연결된 장지를 구분하기 위해 IP 주소를 사용하는데, IP는 일반 사용자가 쉽게 기억하기가 어려워 IP에 해당하는 별명같은 이름을 등록하여 관리하는 시스템을 말한다. 최근 들어 이러한 DNS를 악용하는 사례가 해외에서 늘고 있으며, 'DNS피오나지' 라고 불리는 배후 세력들이 새로운 룰과 악성코드를 개발하여 진화하고 있으며, 이런 공격은 해킹 성공률을 높이며, 가짜 사이트로 유도를 하는 등 데이터를 변경하거나 위조하고 있어 피해 사례가 증가되고 있는 상황이다. 글로벌 DNS 시스템 등 점점 통제를 할 수 없는 범위로 확대되고 있어, 이를 통제하기 위해 DNS피오나지 공격에 대한 분석과 대응책을 제시하여 안전한 DNS 시스템을 구축을 제안한다.

중서부 태평양해역의 한국 다랑어 연승어업 영향에 대한 생태학적 위험도 평가 (An ecological risk assessment for the effect of the Korean tuna longline fishery in the Western and Central Pacific Ocean)

  • 권유정;안두해;문대연;황선재;이재봉
    • 수산해양기술연구
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    • 제45권1호
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    • pp.22-33
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    • 2009
  • Ecological risk assessment(ERA), developed in Australia, can be used to estimate the risk of target, bycatch and protected species from the effects of fishing using limited data for stock assessment. In this study, we employed the ERA approach to estimate risks to tunas, billfishes, sharks, sea turtles and other species by the Korean tuna longline fishery in the Western and Central Pacific Ocean using productivity and susceptibility analyses of the ERA based on low(<1.30), medium(1.30-1.84) and high risk(>1.84). Albacore, bigeye, yellowfin, skipjack and bluefin tunas were generally evaluated in the medium risk. The susceptibility of tuna species, however, had higher risks than the productivity. Billfishes were also at medium risk, while sharks were at high risk by the tuna longline fishery. The risk of productivity was generally high, because most sharks caught by the tuna longline fishery have high longevities, i.e., over 10 years, including ovoviviparous species. Susceptibility, which is related with the selection of fishing gear, was also high, because the longline fishery has no gear modifications to prevent bycatch of protected species. Not only target tuna species were influenced by the tuna longline fishery in the Western and Central Pacific Ocean, but also nontarget species, such as pomfret, mackerels rays, sea turtle were done. Ecosystem-based fishery assessment tools, such as productivity and susceptibility analysis(PSA), have the ability to provide broad scientific advice to the policy makers and stakeholders.

조선시대 전통마을의 서식관에 관한 연구 - 충재 권벌의 종가를 중심으로 - (A Study on a Habitat View of Korean Traditional Villages - in the case of Chung Jae Kwon Bul family -)

  • 최기수
    • 한국조경학회지
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    • 제26권4호
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    • pp.82-94
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    • 1999
  • According to Korean's geographical features of Taek Li Ji, the best location for human settlements is on the vicinity of a stream among a stream, an river and a sea, and not far from a ridge. The researcher chose one of best village which is called Yougokmaeul in Bonghwa-Gun, Kyungsang-Do. This village was created a gathering village with the same surname, can be translated as a hen and the front mountain can be seen as a rooster in the view of the shape of geographical features. As it were, the shape of this village and the cultivated land seems to be an egg inside a nest of a parent's chicken in the respect of the analogy of the theory of P'ungsuchiri which is known as Feng Shui in China and geomancy in the western world, and to effect the defensive psychology of the living environment in the terrain inland. This village is the studying place, Suckchunjungsa as the lecturing and studying place for their following students within the Chunghadonchun, the studying Yougok village, and even the ritual place performing ancestral sacrifices and the first incoming ancestor's graves in the same geographical system. The house site of the first incoming resident is surrounded the countian and is located in the front of Backsulryount which is the main mountain through Moonsu-san in the branch mountain of Korean's mountain system. Backsulryoung which is to be seen as the white peak, is symbolized the head of a hen which is to relate to a mysterious turtle in the view of P'ungsuchiri. And the pavilion which is called Chungamjung is sited on the rock of a shape of turtle which is symbolized to live longer. In the section of the mountain and water, Lee Jung Hwan mentioned a living place near the mountain stream is the best residential area and a landscape which is composed by a stream between mountains make a pleasure spirit and a bright feeling and make a refined person. If one can reach in the graceful mountain make a pleasure split and a bright feeling and make a refined person. If one can reach in the graceful mountain half day away, this kind of place must be a best living residential area to live. But this village was structured all in one place. And one of the ideas tangibly reflected in traditional Korean society's view of life and nature is the seclusion based on the Taoism. This kind of a dreamy thoughts make a dream to keep the paradise in our ancestors' mind. This kind of utopia is Chunghadonchun which is structured 5 aspects from the utopian gate near the Samgaesuewon to the village. These 5aspects is expressed by some Confucian thoughts as a small cosmos individually. On the third aspects which is the center among these aspects, the Suckchunjungsa which was made a seclusion place to devoting himself to his studies with refined tastes. The word of Jiju-am, Gangpung-dae, Jaewol-dae and Biryoung-pock are all expressed to cultivate one's moral character and to seek the truth by the Confucius'theory through the nature.

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종 특이 프라이머를 이용한 동물성 식품원료의 진위 판별법 개발 (Development of Species-Specific PCR to Determine the Animal Raw Material)

  • 김규헌;이호연;김용상;김미라;정유경;이재황;장혜숙;박용춘;김상엽;최장덕;장영미
    • 한국식품위생안전성학회지
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    • 제29권4호
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    • pp.347-355
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    • 2014
  • 본 연구에서는 식품 중 동물성 사용원료의 진위 판별을 위하여 분자생물학적 기법을 이용한 시험법을 개발하였다. 동물성 식품원료의 종 판별을 위한 유전자로는 미토콘드리아 DNA에 존재하는 COI, Cytb, 및 16S rRNA 유전자를 대상으로 하였으며, 가공식품에 적용하기 위하여 PCR 산물의 크기는 200 bp 내외가 되도록 종 특이 프라이머를 설계하였다. 대상종으로는 가축류 2종, 가금류 6종, 민물어류 2종, 해양어류 13종 및 갑각류 1종, 총 24종을 선정하였으며 종 특이 프라이머를 이용하여 예상되는 PCR 산물의 생성 유무를 확인하였다. PCR을 수행한 결과 토끼, 여우, 꿩, 집비둘기, 멧비둘기, 메추리, 참새, 제비, 메기, 쏘가리, 날치, 열빙어, 청어, 까나리, 멸치, 참조기, 넙치, 조피볼락, 홍어, 가오리, 말쥐치, 농어, 성게 및 바닷가재에 대하여 각각 156, 204, 152, 160, 113, 163, 167, 152, 165, 121, 136, 151, 178, 178, 146, 188, 177, 166, 179, 218, 188, 185, 127 및 172 bp에서 PCR 증폭 산물을 확인하였다. 그리고 프라이머 별로 비교종에서는 비특이적 PCR 산물(non-specific PCR product)은 생성되지 않았다. 본 연구에서 개발된 유전자 분석법을 이용하여 동물성 식품원료가 사용된 식품 원료 및 가공식품의 진위 판별에 활용이 가능할 것이며, 불량식품 근절에 크게 기여할 것으로 기대된다.