• Title/Summary/Keyword: Marine animal

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Two New Marine Sponges of the Genus Halichondria (Halichondrida: Halichondriidae) from Uljin, Korea

  • Kang, Dong-Won;Sim, Chung-Ja
    • Animal Systematics, Evolution and Diversity
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    • v.27 no.1
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    • pp.19-23
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    • 2011
  • Two new marine sponges, Halichondria jangseungenesis n. sp. and H. nagokenesis n. sp., of the family Halichondriidae, were collected from Uljin-gun, Gyeongsangbuk-do, Korea by SCUBA diving during the period from Apr 2007 to Aug 2007. Based on their spicule composition and skeletal structure, H. jangseungenesis n. sp. appears to have a close similarity with H. panicea (Pallas, 1766); however, they differ in length of spicule. The spicule length of oxea of H. jangseungenesis n. sp. is shorter than that of H. panicea. Based on their spicule composition and growth form, H. nagokenesis n. sp. is quite similar to H. cylindrata Tanita and Hoshino, 1989; however, but they differ in length of spicule. The spicule length of oxea of H. nagokenesis n. sp. is longer than that of H. cylindrata.

First Occurrence of Chromis albicauda (Pomacentridae, Perciformes) from Jeju Island, and Re-assignment of Yellow Chromis Specimens from Korea

  • Song, Young Sun;Kim, Jin-Koo;Kim, Byung-Jik
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.3
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    • pp.253-258
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    • 2013
  • Two specimens of Chromis albicauda were collected from Jeju Island, Korea. The species is most similar to C. analis, but is distinguishable by the presence of a white caudal fin when alive, 4-5 scale rows on the anterior portion of the preorbital, and a blackish blotch around anal opening. The results of a molecular analysis based on mitochondrial DNA 16S rRNA sequences confirm that the two individuals are not C. analis but C. albicauda as the genetic distance between the two species is 0.044. A comparison of the two individuals of C. albicauda with yellow chromis shows that none of the previously reported yellow chromis is C. analis, but rather they are C. albicauda. Herein, we suggest the new Korean name "Huin-ggo-ri-no-rang-ja-ri-dom" for C. albicauda.

Genetic Differences between Cultured and Wild Penaeid Shrimp (Penaeus chinensis) Populations Analysed by RAPD-PCR

  • Yoon, Jong-Man;Chung, Ee-Yung;Kim, Gye-Woong
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.315-317
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    • 2003
  • Penaeid shrimp (Penaeus chinensis), economically important aquacultural species, belonging to family Penaeidae including genus Fenneropenaeus, widely inhabit the West Sea and South Sea in the Korean Peninsula and the Gulf of Pohai in China under the natural ecosystem. Consequent of the rapid increase in seed production, there is a need to understand the genetic traits and composition of this fish species in order to evaluate exactly the patent genetic effects induced by seed production operations. (omitted)

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Taxonomic Study on Marine Sponges of Komundo Island, Korea (거문도 해산해면류의 분류학적 연구)

  • 이경진;심정자
    • Animal Systematics, Evolution and Diversity
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    • v.15 no.1
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    • pp.141-152
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    • 1999
  • The sponge specimens, which were collected by scuba divers from Komundo Island during the years from 1994 to 1995, identified into 36 species in 26 genera of 19 families. Among them four species, Stelleta japonica Lebwohl, 1914, Caminella velata Lebwohl, 1914, Stylohalina hirta Topsent, 1898 and Esperiopsis rugosa Thiele, 1905 are newly recorded in Korean waters.

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A Marine Harpacticoid, Lourinia armata(Claus, 1866) New to Korea (Crustacea: Copepoda) (해산 하르팍티쿠스목 1미기록종 Lourinia armata(Claus, 1866) (갑각 강, 요각 아강))

  • Yoo Kwang-Il;Lee Wonchoel
    • Animal Systematics, Evolution and Diversity
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    • v.9 no.2
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    • pp.115-121
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    • 1993
  • Only 12 species of marine harpacticoid copepods are ercorded in Koran waters. With the study on the taxonomy of harpacticoid copepods in Korean waters, Lourinia armata(Claus, 1866) was found in the samples from the rocky shore of Names off the east coast and Chiju Hrbor in June and August 1992, respectively. This species is reported to be distributed in the far east Asian coasts for the first time. It was redescribed and figured.

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Two Newly Recorded Species of the Genus Aoroides (Crustacea: Amphipoda: Aoridae) from Korea

  • Jung, Tae Won;Kim, Jong Guk;Yoon, Seong Myeong
    • Animal Systematics, Evolution and Diversity
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    • v.32 no.2
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    • pp.72-85
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    • 2016
  • Two aorid amphipods, Aoroides ellipticus Ariyama, 2004 and A. semicurvatus Ariyama, 2004 from shallow waters of South Korea are reported here. Aoroides ellipticus has the characteristic setation of gnathopod 1 and the elliptical shape of basis on pereopod 7, while A. semicurvatus can be easily distinguished from congeners by combined characters of the curved propodus on gnathopod 2 and the absence of marginal spines on outer ramus of uropod 3 in mature males. This paper redescribed these two aorids and provided a key to Korean Aoroides species.

Two New Marine Sponges of Genus Halichondria (Halichondrida: Halichondriidae) from Korea

  • Kang, Dong-Won;Sim, Chung-Ja
    • Animal Systematics, Evolution and Diversity
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    • v.24 no.2
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    • pp.205-208
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    • 2008
  • Two new marine sponges in family Halichondriidae, Halichondria ulleungensis n. sp. and H. hongdoenesis n. sp. are collected from Ulleungdo Island and Hongdo Island, Korea by SCUBA diving during 2003-2004. H. ulleungensis n. sp. is similar to H. corrugata Diaz, Pomponi and van Soest, 1993 in the type of spicule, but it is different in growth form and choanosomal skeleton. The growth form is encrusting, with numerous erected cylindrical tube, comparing with massive-lobate of H. corrugata. The choanosomal skeleton is confused with loosely arranged oxea tract, comparing with densely tracts with many spicules of H. corrugata. H. hongdoenesis n. sp. is similar to H. surrubicunda Hoshino, 1981 in type of spicule and growth form, but this species has two kinds (thick and thin) of oxea.

New Record of a Hyalid Species, Protohyale (Boreohyale) triangulata (Crustacea: Amphipoda: Hyalidae), from Korea

  • Jung, Tae Won;Yoon, Seong Myeong
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.2
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    • pp.198-205
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    • 2013
  • A newly recorded hyalid species, Protohyale (Boreohyale) triangulata (Hiwatari, 2003), of Korean waters is reported with a description and illustrations. In this paper, the validity of its generic and subgeneric categories is considered. Protohyale triangulata has a specific shape of the propodus of gnathopod 1 in the matured male, forming a triangle with a subquadrate posteroproximal corner, and the palm and the posterior margin are not clear. This major characteristic feature serves to distinguish it from other Korean hyalid species. We also reexamined some previous reports of Korean hyalid species. It seems that this species had been confused with Hyale rubra in Korea.

Redescription of the Free-living Marine Nematode Species, Draconema japonicum Kito, 1976 (Nematoda: Draconematidae), by Scanning Electron Microscopy

  • Rho, Hyun-Soo;Kim, Won
    • Animal cells and systems
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    • v.8 no.4
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    • pp.235-245
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    • 2004
  • Numerous specimens of adults and juveniles of Draconema japonicum Kito, 1976 have been found in intertidal and subtidal sediments and various algae around coast of South Korea. Draconema japonicum is recognized by the following characteristics: having an elongated loop-shaped amphideal fovea in male and horseshoe-shaped amphideal fovea in female, two pairs of uniformly tapered sublateral anal setae and two pairs of unevenly tapered subventral anal setae in male, eight to ten pairs in male and 13 to 15 pairs in female of posterior sublateral adhesion tubes, and five to six pairs of somatic setae on non-striated tail region. Scanning electron photomicrographs of the species are presented with a detailed morphological description and a key to the species of the genus Draconema Cobb, 1913. This is the first discovery of D. japonicum outside the Japanese waters.

Two New Species of the Genus Mycale (Naviculina)(Poecilosclerida: Mycalidae) from Ulleungdo Island, Korea

  • Sim, Chung Ja;Kang, Dong Won
    • Animal cells and systems
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    • v.8 no.2
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    • pp.71-75
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    • 2004
  • A study on marine sponges was conducted by SCUBA diving at Ulleungdo Island, Korea, from July 2001 to August 2003. Two species, Mycale (Naviculina) ulleugensis and Mycale (N.) neunggulensis, are new to science. Mycale (N.) ulleugensis n. sp. seems close to M. chungae based on the shape of spicules, but differs in the size of megascleres and sigmas, Mycale (N.) neunggulensis n. sp. seems close to M. flagellifer Vacelet and Vasseur in the type and size of spicules, but differs in the shape of naviculichela. Naviculichela I of M. flagellifer has a spine on the upper part of the felix.