• Title/Summary/Keyword: MARINE ENVIRONMENT

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Distribution of TOC and metals in the surface sediments of the Lake Shihwa (시화호 표층 퇴적물의 유기탄소와 금속의 분포)

  • Kim, Kyung-Tae;Kim, Eun-Soo;Cho, Sung-Rok;Park, Jun-Kun;Kim, Jong-Kun;Lee, Jeong-Moo
    • Proceedings of KOSOMES biannual meeting
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    • 2008.05a
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    • pp.159-164
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    • 2008

  • In order to understand the spatio-temporal distribution of geochemical parametrs in surface sediments of the artificial Lake Shihwa in the vicinity of Kyunggi Hay in Korea, surface sediments were sampled at 14 sites in July 2007 and analyzed by CHN analyzer and ICP/MS. Metal concentrations in the sediments tended to be decreasing from the head to the mouth of the Lake Shihwa because of extreme pollutant discharge from various kinds of anthropogenic sources such as the Banweol and Shihwa Industrial Complex and cities. With the deposition of fine-grained sediments, high metal concentrations were also observed in the central part of lake. Although various programs(improvement of wastewater collection and treatment system, sea-lake water exchange etc) to improve the environmental conditions around the Lake Shihwa after dike construction were carried out, it was not dear to reach a good environmental quality. Therefore, further environmental programs should be conducted continuously for environmental improvement.

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A Study on the Assessment of Environment Stress in Mokpo Approaching Channel (목포항 출입항로의 환경스트레스 평가에 관한 연구)

  • KIM Chol-Seong;JONG Jae-Yong;Park Sung-Hyun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.12 no.3 s.26
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    • pp.211-218
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    • 2006

  • Recently, many ships such as fishing boats, cargo ships, high speed ferry boats are visiting Mokpo harbor. In particular, many marine accidents have been occurred at this area due to the narrow channel, a thick fog, the existing of the shallow waters etc. However there is no suitable ships' routeing system which takes account of today's traffic situations in this area. This study aims at the settling of hazardous factors to mitigate the danger to vessels in Mokpo harbor and to secure the safety of maritime environment.

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Characterization of Tetracycline-Resistant Genes of Staphylococci isolates from Human and Marine Environment (사람과 해양환경에서 분리된 Staphylococci의 Tetracycline 내성 유전자의 특성 비교)

  • CHO, Ki-Taek;KIM, Young-Chul;KWON, Woo-Ju;JEONG, Hyun-Do
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.1
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    • pp.59-68
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    • 2016

  • For comparison of tetracycline-resistant ($Tc^R$) genes, we obtained 21 and 14 $Tc^R$ Staphylococcus spp. from marine environment and human patient, respectively. Although all isolates from human were identified as Staphylococcus aureus, higher proportion of $Tc^R$ isolates (12 out of 14) from human were utilizing tet(M) gene compared to that of $Tc^R$ isolates (6 out of 21) from marine environment. Additionally, collaborated utilization of tet(M) and erm(A) in $Tc^R-Em^R$ S. aureus in human patient, but not in $Tc^R$ Staphylococcus spp. isolates from marine environment was also characterized. Based on the nucleotide sequence of transposon related to $Tc^R$ gene, we confirmed the origin of tet(M) gene in $Tc^R$ Staphylococci isolated from marine environments and human are derived from Tn916/1545-like and Tn5801 transposon, respectively. It is the first report showing the presence of Tn5801 in all $Tc^R$ S. aureus carrying tet(M) in human patient. Alignment of the fully sequenced tet(M) from marine environmental isolates was also agreed with the determined transposons by showing the genomic mosaic structure composed with three genomic parts from Tn916/1545 and unknown transposons. Genetic characteristics of these tet(M) in environmental isolates were similar to each other but different from those in isolates from human showing only tet(M) from Tn916/5801 type. It may imply the presence of less dramatic communication of antibiotic resistant genes between Staphylococci isolated from marine environment and human.

  • https://doi.org/10.13000/JFMSE.2016.28.1.59 인용 PDF KSCI

Prospects for Improved Marine Pollution Control

  • Powell, R.
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.2 no.1
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    • pp.151-155
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    • 1996

  • When considering marine pollution control procedures there are three general areas which demand close attention. These are: $\bullet$ oily bilge water $\bullet$ refuse $\bullet$ sewage All of these applications can be handled constantly changing to address the complexity of the waste management issues. The basic marine pollution regulations are covered by the International Maritime Organizations MARPOL 73/78 convention, with the various annexes and revisions. Of particular importance for equipment to deal with oily-water, sewage and plastic wastes.

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