• Title/Summary/Keyword: Korea record

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First Record of Gobiid Fish, Astrabe fasciata (Perciformes: Gobiidae) from Dokdo, Korea (독도에서 채집된 망둑어과 어류 1미기록종, Astrabe fasciata)

  • Kim, Dong Sik;Kweon, Seon-Man;Choi, Youn
    • Korean Journal of Ichthyology
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    • v.27 no.4
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    • pp.317-320
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    • 2015
  • The one specimen of Astrabe fasciata, belonging to the family Gobiidae was collected from the Dokdo of East Sea in Korea, and described as the first record from Korea. The specimen is characterized by having two dorsal fins, pectoral fin with free rays (five upper, two lower), protrusion on upper posterior part of supraorbital dermal fold, white spots dispersed on head and five white transverse bends on the body. We proposed its Korean name "Dok-do-eol-ruk-mang-duk-sok" and "Dok-do-eol-ruk-mang-duk" for the genus and species, respectively.

First Record of the Goby, Suruga fundicola (Perciformes: Gobiidae) from Tongyeong, Korea (한국산 망둑어과 어류 1미기록종, Suruga fundicola)

  • Choi, Youn;Lee, Heung-Heon
    • Korean Journal of Ichthyology
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    • v.31 no.4
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    • pp.255-258
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    • 2019
  • Fifteen gobids specimens first collected from the southern coastal waters of Tongyeong, Gyeongsangnam-do, were identified as the Suruga fundicola from Korea. The species, representing a new Korean record, is characterized by having VII-I, 16~17 dorsal fin rays, I, 15~16 anal fin rays, 37~42 lateral line scales, notably large eye and narrow interorbital space, scaleless cheek and opercle, no babel, teeth rather strong, and 6~7 dusky spots on sides. A new Korean name, "Keun-nun-mangduk-sok" and "Keun-nun-mang-duk" is proposed for the genus and species, respectively.

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

  • Kang, Pil Joon;Nam, Ki Wan
    • Fisheries and Aquatic Sciences
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    • v.21 no.11
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    • pp.31.1-31.7
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    • 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.

First Record of Lizardfish, Synodus kaianus (Synodontidae) Based on Postflexion Larva Collected from Jeju Island, Korea (한국 제주도에서 채집된 후기자어에 의한 매퉁이과(Synodontidae) 1미기록종, Synodus kaianus (Günther, 1880))

  • Choi, Si-Won;Kim, Jin-Koo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.2
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    • pp.189-194
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    • 2022
  • Unidentified postflexion larva (18.57 mm in standard length, SL), belonging to the family Synodontidae was collected from Jeju Island, Korea, in November 2019. Molecular analysis revealed that the unidentified larva was identical to Synodus kaianus adults in mtDNA cytochrome c oxidase subunit I region (Kimura-2-parameter distance, d= 0.006), and was different from the close species S. macrops (d=0.220). The postflexion larva of S. kaianus has the following morphological features: regularly distributed seven peritoneal pigment spots along the alimentary canal; and, intensively distributed stellate melanophores at the middle of the base of caudal fin and behind the last anal fin ray. The postflexion larva of S. kaianus differed from that of S. macrops in snout length and size of peritoneal pigment spots. This is the first record of S. kaianus in Korea, and we suggest the Korean name "Ka-i-ya-kkoch-dong-myeol" for S. kaianus, according to Lee et al. (1999).

First Record of Echidna nebulosa (Anguilliformes, Muraenidae) from Korea (한국산 곰치과(뱀장어목) 어류 1 미기록종, Echidna nebulosa)

  • Kang, Chung Bae;Lee, Yu-Jin;Kim, Jin-Koo;Han, Song Hun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.4
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    • pp.478-483
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    • 2022
  • A single specimen (522.0 mm in total length) of the family Muraenidae, collected from the waters off south-western Jeju-do Island in November 2021, was identified as Echidna nebulosa on the basis of morphological and molecular methods (DNA barcoding). This species is characterized by several morphological traits as follows: 10 rounded molar, median intermaxillary, and vomerine teeth; 4 predorsal vertebrae, 50 preanal vertebrae and 123 total vertebrae; and a pale background color with two rows of 17-20 blackish brown starry blotches along the head and body. As this is the first record of E. nebulosa in Korea, we propose the new Korean names, "Dung-Geun-Ni-Gom-Chi-Sog" for the genus Echidna, and "Beol-Kkok-Gom-Chi" for E. nebulosa.

First Record of Ptereleotris evides (Gobiiformes: Microdesmidae) from the Southern Jejudo Island, Korea (제주도 남부 해역에서 채집된 Ptereleotris evides (망둑어목: 청황문절과) 한국 첫기록)

  • Min-Yeong Im;Hyuck Joon Kwun;Jin-Koo Kim
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.56 no.4
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    • pp.569-574
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    • 2023
  • A single specimen (30.35 mm standard length) of Ptereleotris evides was collected from the southern coast of Jejudo Island, Korea, in September 2017 during a skin diving outing. Ptereleotris evides is characterized by having a slightly elongated body, six spines on the 1st dorsal fin, one spine and 25 soft rays on the 2nd dorsal fin, 22 pectoral fin rays, one spine and four soft rays on the pelvic fin, one spine and 25 soft rays on the anal fin, and no disc in pelvic fin. This species differs from the congeneric species, P. hanae and P. heteroptera in having no elongated rays on the caudal fin and a black spot at the ventral margin of the caudal peduncle, respectively. Molecular analysis results based on mitochondrial DNA cytochrome c oxidase subunit I (COI) sequences showed that our specimen almost corresponded to P. evides (99.82%) sequences from registered at the NCBI. As this is the first record of P. evides in Korean waters, we propose a new Korean name for it, "Ga-mak-cheong-hwang-mun-jeol".

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

  • Hyun-Geun Cho;Youn Choi;Hyeong-Su Kim
    • Korean Journal of Ichthyology
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    • v.35 no.3
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    • pp.194-200
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    • 2023
  • The Yellowfin surgeonfish, Acanthurus xanthopterus was reported as the first confirmed record from Korea based on a single specimen (332.6 mm SL) collected from the coast from Geomundo Island. It is characterized by having a longitudinal yellowish band in front of eye, dorsal and anal fins with 4 bluish stripes, and broad yellowish bar distally on pectoral fin. The new Korean name, "No-rang-munui-yang-jwi-dom", is proposed for the species.

New distributional record for Pyropia koreana: confirmed to occur on the South Island, New Zealand

  • Nelson, Wendy A.;Sutherland, Judith E.;Hwang, Mi Sook;Choi, Han-Gu
    • ALGAE
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    • v.29 no.3
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    • pp.177-181
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    • 2014
  • An epiphytic bladed member of the Bangiales was found growing in Christchurch (South Island, New Zealand). Molecular sequence data and morphological comparisons revealed that the New Zealand specimens belong to the species Pyropia koreana (M. S. Hwang & I. K. Lee) M. S. Hwang, H. G. Choi, Y. S. Oh & I. K. Lee. This is the first record of Py. koreana in the southern hemisphere and a new record of an introduced species in New Zealand.

First Record of Orobdella tsushimensis (Hirudinida: Arhynchobdellida: Gastrostomobdellidae) from the Korean Peninsula and Molecular Phylogenetic Relationships of the Specimens

  • Nakano, Takafumi;Seo, Hong-Yul
    • Animal Systematics, Evolution and Diversity
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    • v.30 no.2
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    • pp.87-94
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    • 2014
  • Specimens of the genus Orobdella Oka, 1895 from Korea, including various locations in the Korean Peninsula, were identified as Orobdella tsushimensis Nakano, 2011. Phylogenetic analyses using mitochondrial cytochrome oxidase subunit 1 (COI), ND1, $tRNA^{Cys}$, $tRNA^{Met}$, 12S rRNA, $tRNA^{val}$, and 16S rRNA markers show that the newly collected specimens form a monophyletic group with the known O. tsushimensis specimens. The genetic distance of COI of these specimens was in the range 0.4-6.6%. These results confirm that the newly collected specimens belong to O. tsushimensis. This is the first record of the genus Orobdella from the Korean Peninsula.

A Study on Computing Method of the Individual Scholastic Evaluation in the Comparative School Record

  • Chung, Yeon-soo
    • Communications for Statistical Applications and Methods
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    • v.6 no.2
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    • pp.635-644
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    • 1999
  • This study aims at solving the problem in the application method of the comparative school record which is currently being discussed in depth among colleges. The application method of Kay O. Lee and Yeon Soo Cung(1997) which was appied in the 1999 Korean air force Academy Admission Process was found to be problematic in the following respects. First the setting of the standard which divides all the high schools in kora into five groups relative to their scholastic level is somewhat vague and subjective secondly the difference among those levels which resulted from the five grouping could greatly influence on the admission of the applicants and thirdly there is no standard in choosing those few promising individuals with high scholastic aptitude test results from the low level groups such as level four and five,. Therefore this study suggests and introduces a nationwide individual scholastic evaluation that would complement the limits and problems in the application method of the comparative school record.

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