• Title/Summary/Keyword: shrimps

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Feeding Habits of Juvenile TakifugU niphobles in the Eelgrass (Zostera marina) bed in Kwangyang Bay (광양만 잘피밭에 서식하는 복섬 (Takifug niphobles) 유어의 식성)

  • HUH Sung-Hoi;KWAK Seok Nam
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.31 no.6
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    • pp.806-812
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    • 1998
  • Feeding habits of juvenile Takifug niphobles collected from the eelgrass bed in Kwangyang Bay were studied. T. niphobles (2$\~$8 cm SL) was a carnivore which consumed mainly amphipods (gammarid and caprellid amphipods), crabs, shrimps and gastropods. Its diets included minor quantities of polychaetes, copepods, tanaids and isopods. T. niphobles showed ontogenetic changes in feeding habits. Small individuals preyed mainly on gammarid amphipods, caprellid amphipods and gastropods. However, crabs and shrimps were heavily selected with increasing fish size.

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Feeding Ecology of Sebastes schlegeli in the Tongyeong Marine Ranching Area (통영 바다목장해역에 서식하는 조피볼락(Sebastes schlegeli)의 식성)

  • Park, Kyeong-Dong;Kang, Yong-Joo;Huh, Sung-Hoi;Kwak, Seok-Nam;Kim, Ha-Won;Lee, Hae-Won
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.40 no.5
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    • pp.308-314
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    • 2007
  • The feeding habits of Sebastes schlegeli collected from the Tongyeong marine ranching area throughout 2002 were studied. S. schlegeli is a carnivore (piscivore), and consumed mainly fish. Its diet also included a small amount of caridean shrimps, crabs, amphipods, polychaetes, and isopods. The diet of S. schlegeli underwent size-related changes. Small individuals (standard length (SL)<6 cm) fed mainly on fishes, caridean shrimps, and amphipods, and the proportion of fish increased with SL. Large individuals (SL>20 cm) ate fish predominately. The diet of S. schlegeli changes seasonally, and caridean shrimps were consumed mainly from May to July. The dietary breadth index of S. schlegeli varied with SL and season.

Pathological study of a infectious lymphoid organ necrosis virus infection in penaeid shrimp (Penaeus orientalis) (보리새우류(대하)의 전염성 Lymphoid organ 괴사 바이러스 감염에 대한 병리학적 연구)

  • Park, Jae-hak;Lee, Yong-soon
    • Korean Journal of Veterinary Research
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    • v.36 no.4
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    • pp.1013-1016
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    • 1996
  • Since 1993, sudden and massive death has occurred among penaeid shrimp, Penaeus orientalis cultured in Korea. We investigated the pathological characterizations on the spontaneously and experimentally infected penaeid shrimp. The major gross findings of the spontaneous cases were 2-6mm sized-white spots on the inside of the carapace and reddish discolorization. Histopathologically, massive necrosis of lymphoid organ, degeneration and necrosis of epithelia of epidermis and foregut were observed in both spontaneous and experimental cases. Amphophilic to basophilic intranuclear inclusion bodies were readly observed epithelia of epidermis, foregut and gills. Electron microscopy revealed enveloped, non-occuluded ellipsoid to rod shaped virus particles, within the nucleus, in the lymphoid organs and interstitial cells of hepatopancreas of both spontaneously and experimentally infected shrimps. The size of the virion was $375{\times}167nm$, and the nucleocapsid was $290{\times}75nm$. The causative agent causing massive death in penaeid shrimps in Korea resembles baculovirus associated with white spot syndrome (WSBV) occurred in Taiwan in virus morphology and gross and histological changes of the shrimps.

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Two Hippolytid Shrimps of the Genus Eualus (Crustacea: Decapoda: Caridea) from Korea

  • Kim Jung-Nyun;Choi Jung-Hwa;Ma Chae-Woo
    • Fisheries and Aquatic Sciences
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    • v.9 no.2
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    • pp.83-90
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    • 2006
  • This paper provides descriptions and illustrations of two hippolytid shrimps, Eualus macilentus ($Kr{\phi}yer$, 1841) and E. leptognathus (Stimpson, 1860). This is the first record of E. macilentus collected in Korean waters; it was found in the East Sea at a depth of 300 m. Eualus leptognathus has been collected previously from various locations in southern and eastern Korea, but no detailed description has been reported. This study provides a key to the six species of Eualus in Korean waters.

New Records of Hippolytid Shrimps, Lebbeus speciosus and Lebbeus comanthi (Crustacea: Decapoda: Caridea) from the East Sea, Korea

  • Lee, Chu;Ko, Hyun Sook;Lee, Kyu Hyun
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.1
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    • pp.84-91
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    • 2013
  • Two species of the hippolytid shrimps, Lebbeus speciosus and Lebbeus comanthi, are described and illustrated for the first time in Korea. They were collected from the East Sea. Lebbeus speciosus was found in a scallop farm of Jumunjin, Gangneung, and L. comanthi associated with crinoids, was found in Gampo, Gyeongju. The difference between these two related species is in the number of dorsal teeth of the rostrum, five teeth in L. speciosus and a single tooth in L. comanthi. The Korean Lebbeus species has increased to 6 species by the present report. They are L. grandimana, L. polaris, L. unalaskensis, L. groenlandicus, L. speciosus, and L. comanthi.

First Records of Two Pontoniid Shrimps (Crustacea: Decapoda: Caridea: Palaemonidae) from Korea

  • Lee, Kyu-Hyun;Ko, Hyun-Sook
    • Animal Systematics, Evolution and Diversity
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    • v.27 no.3
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    • pp.239-245
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    • 2011
  • We describe and illustrate two pontoniine shrimps, Cuapetes grandis and Periclimenes ornatus, for the first time in Korea. C. grandis was collected in an artifical reef of Dadae, Geojedo Island by SCUBA diving in 15-20 m depth. This species was found in an oyster within an artificial reef and appeared to be free-living. P. ornatus was collected from Seongsanpo, Jejudo Island by SCUBA diving in 10 m depth. This species had a symbiotic relationship with sea anemone. This record extends their previously known range from southern Japan to the Korean peninsula and the number of known pontoniine species in Korea to four.

Experimental infection of white spot syndrome virus (WSSV) in wild crab, Gaetice depressus

  • Kim, Chun Soo;Kim, Ki Hong
    • Journal of fish pathology
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    • v.17 no.3
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    • pp.213-216
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    • 2004
  • To confirm the possibility of a wild marine crab, Gaetice depressus, as a carrier for white spot syndrome virus (WSSV) and to develop an alternative experimental model for WSSV in winter season, the susceptibility of the crab to WSSV was assessed by artificial challenge and subsequently tested for infection by PCR assay. The results revealed that the crabs were as highly susceptible as penaeid shrimps. WSSV caused 100% mortality in G. depressus within 16 days after intramuscular injection. The presence of WSSV in the moribund crabs was confirmed by PCR and was found in gills and muscle tissue. These results suggest that G. depressus can be naturally infected by WSSV via moribund shrimps, and can act as a potential carrier of WSSV. In addition, G. depressus can be used as an alternative experimental animal for WSSV.

Two New Records of Crangonid Shrimps (Crustacea: Decapoda: Caridea) in Korean Waters

  • Kim, Jung-Nyun;Choi, Jung-Hwa;Choi, Kwang-Ho;Kim, Sung-Tae;Chang, Dae-Soo
    • Animal Systematics, Evolution and Diversity
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    • v.24 no.3
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    • pp.265-268
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    • 2008
  • Two crangonid shrimps, Paracrangon abei Kubo, 1937 and Pontocaris sibogae (De Man, 1918), collected from the northeastern and southeastern waters of Jeju Island, are newly recorded into the Korean fauna. The former is the second species and the latter is the only species of each genus recorded in Korea. Morphological and distributional accounts of these two species are briefly discussed.

Two Penaeid Shrimps (Crustacea, Decapoda) from Jeju Island, Korea

  • Kim Jung Nyun;Choi Jung Hwa;Kim Dae Hyun;Cha Hyung Kee;Kong Yong Gun;Lee Chang Hoon;Han Chang Hee
    • Fisheries and Aquatic Sciences
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    • v.6 no.2
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    • pp.88-96
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    • 2003
  • Two penaeid shrimps, Melicertus latisulcatus (Kishinouye, 1896) and Metapenaeopsis mogiensis mogiensis (Rathbun, 1902), collected from Jeju Island are described and illustrated with color photographs. Melicertus latisulcatus is previously known but without detailed description in Korean waters and M. mogiensis mogiensis is recorded for the first time. Distributional and morphological accounts of these two species are briefly discussed.

Feeding Ecology of Sillago japonica in an Eelgrass (Zostera marina) Bed

  • Kwak Seok Nam;Baeck Gun Wook;Huh Sung-Hoi
    • Fisheries and Aquatic Sciences
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    • v.7 no.2
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    • pp.84-89
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    • 2004
  • Feeding habits of Sillago japonica collected from in an eelgrass (Zostera marina) bed in Jindong Bay, Korea were studied. S. japonica was a carnivore which consumed mainly gammarid amphipods, polychaetes, bivalves, caridean shrimps and crabs. Its diets also included a small amount of fishes, copepods and caprellid amphipods. The diet of S. japonica underwent significant size-related changes; small individuals (<5cm SL) fed mainly on gammarid amphipods and crab larvae, while proportion of polychaetes and bivalves increased with increasing fish size and gammarid amphipods were also important prey for medium size individuals (5.1-9.9cm SL). The large individuals (>10cm SL) ate polychaetes, caridean shrimps and crabs. The dietary breadth of S. japonica were varied with size. The diet of S. japonica also underwent seasonal changes that could be related to differences in prey availability; gammarid amphipods were mainly consumed in spring and polychaetes in summer.