• Title/Summary/Keyword: 조수

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Heavy Metal Concentrations of Some Game Species Captured in Kyeongsangnam-do, Korea (경남지역(慶南地域)에 서식(棲息)하는 수렵조수류(狩獵鳥獸類)의 중금속(重金屬) 축적(蓄積))

  • Choi, Jai Sik;Jung, Wee Hyun;Youn, Ki Sick;Lee, Doo Pyo
    • Journal of Korean Society of Forest Science
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    • v.83 no.1
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    • pp.6-11
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    • 1994
  • Three different types of tissue taken from three game birds such as Ring-necked Pheasant, Rufous Turtle Dove, Mallard and a mammal, Korean Water Deer were analyzed for five heavy metals such as iron, zinc, copper, lead and cadmium. The main purpose of this study was to make clear the background levels of the metal concentrations in the tissues of these game species. The metal levels were generally low and could be considered as the background levels. But some markedly high levels of lead were recorded in the muscles of birds shot by the shotgun. The implications of these results were discussed with respect to the health of people.

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The Community Ecology of Mobile Macrofauna (Fish and Decapod) at the Youngjong Tiny Tidepools, Incheon, Korea (영종도 소형 조수웅덩이에 서식하는 이동성 대형 동물 (어류와 십각류)의 군집생태)

  • Kim, Byung-Gi;Kim, Byung-Pyo;Han, Kyung-Nam
    • Korean Journal of Ichthyology
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    • v.27 no.3
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    • pp.205-216
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    • 2015
  • Mobile macrofauna and community structure were studied at the Youngjong tiny tidepools, Incheon, Korea. Samples were monthly collected from February 2010 to January 2011. Mobile macrofauna community comprised a total of 18 species, including 1,122 individuals and 623.6 gWWt. The dominant species were Luciogobius guttatus, Tridentiger bifasciatus, Hemigrapsus penicillatus, Pagurus minutus. The number of species and biomass were low from December to March, and high from April to November. Canonical correspondence analysis revealed that temperature were the most important environmental variables in determining the observed variability in community composition. Species diversity indices ranged from 0.14 to 2.05, and showed the highest value in October 2010. The tide pools provide spawning ground and nursery ground for some fishes and decapods.

Growth and Habitat Conditions of Young Stage Right Eye Flounder (Kareius bicoloratus) in the Saemangeum Reservoir (새만금호 유어기 돌가자미 (Kareius bicololaratus)의 성장과 서식환경)

  • Choi, Youn
    • Korean Journal of Environmental Biology
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    • v.27 no.1
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    • pp.1-5
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    • 2009
  • This study was to investigate the habitat conditions and growth of right eye flounder (Kareius bicoloratus) in the Saemangeum Reseorvoir during 1995$\sim$2007. The planktonic larvae of K. bicoloratus appeared in early March, and then the juveniles started the benthic life in the tide-pools inside the reservoir, being 1.5$\sim$2.5cm in total length in early April and 6.0$\sim$7.2cm in mid-July. This species was not collected in the tide-pools after July, indicating that the juveniles began to move to outer seas for growing. When the tide barrier of Saemangeum was constructed, the juveniles of K. bicoloratus decreased as the tidal pools were covered continuously, then they could not be collected after 2005. Thus, it is concluded that the environmental change has taken important influence on distribution and spawning of K. bicoloratus since the reservoir was constructed.