Effects of polycyclic aromatic hydrocarbons (PAHs) on an aquatic ecosystem : acute toxicity and community-level toxic impact tests of benzo〈a〉pyrene using lake zooplankton community
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- Ikenaka Yoshinori
- Laboratory of Toxicology, Graduate School of Veterinary Medicine, Hokkaido University
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- Sakamoto Masaki
- Department of Environmental Engineering, Toyama Prefectural University
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- Nagata Takamaru
- Lake Biwa Environmental Research Institute
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- Takahashi Hirokazu
- Institute of Mountain Science, Shinshu University
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- Miyabara Yuichi
- Institute of Mountain Science, Shinshu University
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- Hanazato Takayuki
- Institute of Mountain Science, Shinshu University
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- Ishizuka Mayumi
- Laboratory of Toxicology, Graduate School of Veterinary Medicine, Hokkaido University
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- Isobe Tomohiko
- Center for Marine Environmental Studies (CMES), Ehime University
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- Kim Jun-Woo
- Jeonju Regional Environmental Office, Ministry of Environment, Korea
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- Chang Kwang-Hyeon
- Department of Environmental Science and Engineering, Kyung Hee University, Korea
書誌事項
- タイトル別名
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- Effects of polycyclic aromatic hydrocarbons (PAHs) on an aquatic ecosystem: acute toxicity and community-level toxic impact tests of benzo[a]pyrene using lake zooplankton community
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We estimated acute toxicity of benzo[a]pyrene (B[a]P) using two cladoceran species, Ceriodaphnia reticulata and Daphnia magna, and also analyzed its impact on zooplankton community throughout an exposure experiment using small-scale mesocosms. LC50 of B[a]P for C. reticulata and D. magna was 4.3 and 4.7 µg/l, respectively. However, individuals fed with Chlorella showed higher LC50, 6.1 µg/l for C. reticulata and 8.0 µg/l for D. magna. In the exposure experiment, we examined the impact of B[a]P on zooplankton community using conceivable concentrations in the environment (5 and 10 μg/l) using typical zooplankton community in eutrophicated systems. Despite the residence time of B[a]P in the water column was short as < 4 days, application of B[a]P induced decrease of zooplankton abundance. However, the recovery pattern was different among cladocerans and rotifers. Consequently, B[a]P showed insecticide-like impacts, suppressing cladoceran populations and inducing the dominance of rotifers particularly under high concentration (10 μg/l). Results have suggested that, even such short duration of B[a]P in the water body can have impact on zooplankton abundance and community structure. Since B[a]P easily precipitate to the bottom and rapidly disappears from the water body, careful monitoring and further assessment of the potential toxicity of polycyclic aromatic hydrocarbons are necessary.
収録刊行物
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- The Journal of Toxicological Sciences
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The Journal of Toxicological Sciences 38 (1), 131-136, 2013
一般社団法人 日本毒性学会
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詳細情報 詳細情報について
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- CRID
- 1390001204904346624
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- NII論文ID
- 10031138734
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- NII書誌ID
- AN00002808
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- COI
- 1:STN:280:DC%2BC3szjt1Krtw%3D%3D
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- ISSN
- 18803989
- 03881350
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- NDL書誌ID
- 024284326
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- PubMed
- 23358147
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可