• 제목/요약/키워드: first Korean record

검색결과 1,681건 처리시간 0.027초

Scoliodon속 어류의 1 미기록종, Scoliodon laticaudus (New Record of the Spadenose Shark, Scoliodon laticaudus (Carcharhiniformes: Carcharhinidae) from South Sea, Korea)

  • 조현근;권선만;김병직
    • 한국어류학회지
    • /
    • 제26권4호
    • /
    • pp.336-339
    • /
    • 2014
  • 우리나라 남부연안에서 채집된 1개체 (전장 350.0 mm)의 표본을 근거로 흉상어과에 속하는 Scoliodon laticaudus를 한국미기록종으로 기재 보고한다. 본 종은 머리가 매우 납작한 삽모양이며 주둥이가 길고 납작한 점 가슴지느러미가 삼각형이며 제 1 등지느러미 후단이 배지느러미 중앙부분까지 도달하는 특징이 있다. 본 속과 종의 신한국명으로 각각 "납작주둥이상어속"과 "납작주둥이상어"를 제안한다.

New record of three economic Hypnea species (Gigartinales) in Korea

  • Kang, Pil Joon;Nam, Ki Wan
    • Fisheries and Aquatic Sciences
    • /
    • 제21권11호
    • /
    • pp.31.1-31.7
    • /
    • 2018
  • Three economic marine algae that have been used as food and carrageenan sources were collected from Korea during a survey of marine algal flora. They share the generic features of Hypnea, and three major clades supported by the sectional features were confirmed in a phylogenetic tree based on rbcL sequences. The first species, which belongs to a species group corresponding to the sect. Spinuligerae, nests in the same clade with Hypnea yamadae in a genetic distance of 0%. It is morphologically characterized by an entangled base, subcompressed or subterete to terete axes, somewhat percurrent main axis, irregularly alternately branching with wide angle, and rarely hooked spinous branchlets. The second one is also referred to the sect. Spinuligerae and formed the same clade as Hypnea cenomyce. The genetic distance between both sequences was calculated as 0.0-0.1%, which is considered to be intraspecific. This species is distinct by somewhat entangled thallus at the basal part, percurrent axis, short spine-like branchlets densely covering the axis, and medullary lenticular thickenings. The third alga, which forms a species group corresponding to the sect. Pulvinatae, nests in the same clade as Hypnea nidulans (no intraspecific divergence). It shows occasionally epiphytic habitat rather than epilithic habitat of low mat-forming growth and percurrent erect main axes with dense lateral branchlets. Based on these morphological and molecular data, the three Korean species are identified as H. yamadae, H. cenomyce, and H. nidulans. This is the first record of the Hypnea species in Korea.

우리나라 거문도 연안에서 채집된 양쥐돔과 한국첫기록종, Acanthurus xanthopterus (First Record of the Yellowfin Surgeonfish, Acanthurus xanthopterus (Perciformes: Acanthuridae) from Geomundo Island, Korea)

  • 조현근;최 윤;김형수
    • 한국어류학회지
    • /
    • 제35권3호
    • /
    • pp.194-200
    • /
    • 2023
  • 우리나라 거문도 연안에서 채집된 양쥐돔과 어류 1개체(332.6 mm in SL)의 표본을 근거로 Acanthurus xanthopterus를 국내 첫기록으로 보고한다. 본 종은 눈 앞에 노란색 가로줄 무늬가 있는 점, 등지느러미와 뒷지느러미에 4개의 푸른색 줄무늬가 있는 점, 가슴지느러미 가장자리에 노란색 띠가 있는 것이 특징이다. 본 종의 신한국 명으로 '노랑무늬양쥐돔'으로 제안한다.

A new record of the species Caprella arimotoi (Crustacea: Amphipoda: Caprellidae) from Korean waters

  • Heo, Jun-Haeng;Choi, Jaehong;Kim, Young-Hyo
    • Journal of Species Research
    • /
    • 제9권4호
    • /
    • pp.443-447
    • /
    • 2020
  • A newly recorded species Caprella arimotoi Takeuchi, 1993, belonging to the family Caprellidae Leach, 1814, was collected from the South Sea, Korea. This species is morphologically very similar to Caprella verrucosa Boeck, 1871, with blunt dorsal projections on pereonites, oval-shaped propodus on gnathopod 2, and grasping spines on the pereopods 5-7. Caprella arimotoi originated from C. verrucosa and are difficult to distinguish because they have mixed characteristics. However, C. arimotoi was classified because of several morphological differences. The newly recorded species C. arimotoi is discernible from C. verrucosa by a forwardly curved anterodorsal projection on head, elongated gills, slender pereopod 7, and lacking ventrolateral projections on pereonites 2-7. To date, C. arimotoi has only been reported in Japanese waters. So, our record is the first record in Korean waters and outside of Japan. In this study, the Korean C. arimotoi is illustrated based on the mature male specimens with a brief description of the female, focusing on the sexually dimorphic characters.

9호선 1단계 수송수요를 고려한 2단계 열차운행방안에 대한 연구 (A Study on the Second Phase Operating Patterns for Taking into Consideration the First Phase Transport Demand of Line9)

  • 신형식;정수영;김민수
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
    • /
    • pp.498-508
    • /
    • 2011
  • First phase section of line 9 which had been constructed by first private capitalization business of Seoul city was opened on July 24, 2009. There are 25 stations of 25.5km operation distance between Gaehwa and Sinnonhyeon, running regular and express trains on the same track. The number of daily passenger demand has risen to above 200thousand passengers with record above 90% of anticipatied transport demand in 2010. The construction of second phase section(Sinnonhyeon~Bohoon Hospital : 14km, 13 stations) is currently under construction for opening in 2016. This study aims to suggest optimal operating patterns taking into consideration theoretical operating headways for regular and express trains, demand of rolling stocks mainly analyzed on record of first phase demand of line 9 and anticipated transport demand of second phase basic plan.

  • PDF

우리나라 남해에서 출현한 새다래과(농어목) 한국미기록종, 흰꼬리타락치 Taractichthys steindachneri (First Reliable Record of the Sickle pomfret, Taractichthys steindachneri (Bramidae: Perciformes) from Korea)

  • 김병직;김진구;유정화;박지태
    • 한국어류학회지
    • /
    • 제24권3호
    • /
    • pp.230-233
    • /
    • 2012
  • 과거 우리나라 남해에 출현하는 것으로 알려졌던 농어목 새다래과의 한국미기록종 흰꼬리타락치(Taractichthys steindachneri)에 대해 제주도를 포함한 남해에서 채집된 2개체(표준체장 224.7~406.5 mm)의 표본을 근거로 형태적 특징을 상세히 기재하였다. 본 종은 양측 배지느러미가 서로 멀리 떨어져 위치하는 점, 미병부 배측에 반월상의 홈이 있는 점, 등지느러미와 뒷지느러미가 길게 신장하는 점, 그리고 체색이 전체적으로 검고 꼬리지느러미 후연이 백색인 점이 특징이다.

First Record of Aliaporcellana and Lissoporcellana (Crustacea: Decapoda: Porcellanidae) from Korea

  • Lee, Sanghui;Park, Jin-Ho;Kim, Won
    • Animal Systematics, Evolution and Diversity
    • /
    • 제31권3호
    • /
    • pp.191-200
    • /
    • 2015
  • Two porcelain crab species, Aliaporcellana pygmaea (De Man, 1902) and Lissoporcellana nakasonei (Miyake, 1978), are reported here for the first time from Korean waters based on specimens collected from Jeju Island, Korea. The genus Aliaporcellana Nakasone and Miyake, 1969, and Lissoporcellana Haig, 1978 are also reported here for the first time in Korea. Aliaporcellana pygmaea has a wide distribution. The specimen reported here is the most northern record of this species. While, Lissoporcellana nakasonei, associated with anthozoans, was known for distributing range from New Caledonia to southern Japan. As a result, the distribution rage of L. nakasonei is changed to Korea. Now, 12 species of porcelain crabs have been reported in Korean waters.

First Record of a Carangid Fish Species, Carangoides hedlandensis (Perciformes: Carangidae), in Korean Waters

  • Lim, Young-Soo;Kang, Chung-Bae;Han, Kyeong-Ho;Myoung, Jung-Goo
    • Fisheries and Aquatic Sciences
    • /
    • 제13권4호
    • /
    • pp.315-319
    • /
    • 2010
  • A single specimen of Carangoides hedlandensis was collected from a set net installed at 25 m depth near Sangju Beach, Namhae, Gyeoksangnamdo, Korea. The morphology of the species was similar to that of C. armatus. Carangoides hedlandensis and C. armatus can be clearly distinguished by the number of gillrakers on the first arch: C. hedlandensis has 20-28 gillrakers whereas C. armatus has 30-39. Unlike other species, interorbital region of the head in C. hedlandensis is bumped. We suggest that C. hedlandensis should be added to lists of Korean fish fauna, and propose a Korean name, "Hokjeon-gaeng-i" for this species.

역도 인상, 용상 기록향상과 관계가 높은 주요 훈련종목 추출 (Extraction of Major Training Method that are Highly Related to Snatch Record and Jerk Record Improvement)

  • Moon, Young Jin;Park, Tae Min
    • 한국운동역학회지
    • /
    • 제31권2호
    • /
    • pp.148-153
    • /
    • 2021
  • Objective: It is to extract training items that have a high relationship with the improvement of weightlifting records through correlation and regression analysis between training methods used commonly in the field and Snatch records and jerk records. Through this, it is intended to promote training efficiency to improve the records of weightlifters. Method: For 90 elite weightlifters of the professional teams, 4 groups (lightweight (30 people): 61 kg, 67 kg, 73 kg., middleweight (30 people): 81 kg, 89 kg, 96 kg., heavyweight (30 people): 102 kg, 109 kg, +109 kg., the whole group (90 people)) were divided. At the significance level of 0.05, correlation analysis and linear regression analysis were performed between record of training methods used widely in the field and Snatch records and Jerk records. Results: First, the better the record in Jerk, the better the Snatch record. Second, the three training methods HS, ForceS and WP performed in the field were all found to be important factors related to the improvement of Snatch record. Third, In the jerk where there are more types of training than Snatch, three training methods (HC, ForceS, BPP) appeared to be an important training method for improving the jerk record. Conclusion: While many training methods have been devised and carried out in the field, 3 types of training (HS, ForceS, WP) for improving Snatch record and 3 types of training (HC, ForceS, BPP) for improving Jerk record was found to be the most influential training method. Since all of them showed a large value of explanatory power by regression analysis, it is considered that this study is meaningful in that it can promote training efficiency by simplifying although there are many types of training for athletes.

한국산 망둑어과(Gobiidae) 어류 1 미기록종, Glossogobius olivaceus (First Record of Glossogobius olivaceus(Perciformes: Gobiidae) from Korea)

  • 권혁준
    • 한국어류학회지
    • /
    • 제32권1호
    • /
    • pp.32-36
    • /
    • 2020
  • 2015년 5월 우리나라 울산에서 Glossogobius olivaceus 1개체가 처음 채집되었다. 본 종은 목덜미에 검은 점이 다수 있고 머리에 감각공과 돌기가 발달되었으며, 측선비늘은 33개, 척추골은 27개이다. 본 속 및 종의 새로운 국명으로 "검은반점망둑속" 및 "검은반점망둑"을 제안한다.