Trophic Interactions among Marine Microbes in Oil-contaminated Seawater on a Mesocosmic Scale
スポンサーリンク
概要
- 論文の詳細を見る
We studied the effects of oil spills on the trophic interactions among microorganisms in marine environments on a mesocosmic scale. When Bunker-A oil or kerosene was introduced into the mesocosm, bacterial numbers increased for the first 3 days, then decreased with a concomitant propagation of either heterotrophic nanoflagellates (HNFs) or viruses. We hypothesized that the sensitivity of HNFs to each oil resulted in this trophic relationship. To test this hypothesis, the rates at which HNFs grazed on bacteria were examined by conducting microcosm experiments in the presence of one of these oils. The rates were markedly reduced by kerosene but slightly increased by Bunker-A oil. The removal of HNFs by filtration led to a fluctuation in the numbers of bacteria and viruses that was quite similar to that in the mesocosm with kerosene. We conclude that the inhibitory effect of oil components on unicellular microorganisms is one of the key factors controlling the microbial food-web in oil-contaminated seawater.
- 日本微生物生態学会の論文
著者
-
大和田 紘一
熊本県立大学環境共生学部環境資源学科
-
大和田 紘一
東大海洋研
-
SHIBATA Akira
Faculty of Pharmaceutical Sciences, Hokuriku University
-
大和田 紘一
Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
-
大和田 紘一
熊本県大
-
OHWADA KOUICHI
Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
-
Kogure Kazuhiro
ORI, The Univ. Tokyo
-
Nishimura Masahiko
ORI, The Univ. Tokyo
-
WADA MINORU
Ocean Research Institute, The University of Tokyo
-
NOMURA HIDEAKI
Ocean Research Institute, The University of Tokyo
-
KOGURE KAZUHIRO
Ocean Research Institute, The University of Tokyo
-
Wada Minoru
Ori The Univ. Of Tokyo Faculty Of Fisheries
-
Ohwada K
熊本県立大学環境共生学部環境資源学科
-
Ohwada Kouichi
Faculty Of Environmental And Symbiotic Sciences Prefectural University Of Kumamoto
-
大和田 紘一
東京大学海洋研究所
-
Ohwada Kouichi
Prefectural Univ. Kumamoto Kumamoto Jpn
-
Ohwada Kouichi
Ocean Research Institute University Of Tokyo
-
Nomura Hideaki
Univ. Tokyo Tokyo Jpn
-
Nomura Hideaki
Ocean Research Institute The University Of Tokyo
-
Nishimura Masahiko
Ocean Research Institute The University Of Tokyo
-
Nishimura Masahiko
Ocean Research Institute University Of Tokyo
-
Ohwada Kouichi
Faculty Of Environmental And Symbiotic Science Prefectural University Of Kumamoto
-
Kogure Kazuhiro
Ori The Univ. Of Tokyo Faculty Of Fisheries
-
Kogure Kazuhiro
Atmosphere And Ocean Research Inst. Univ. Tokyo
-
Kogure Kazuhiro
Ocean Research Institute The University Of Tokyo
-
Shibata Akira
Faculty Of Engineering Soka University
-
TOYODA KEITA
Ocean Research Institute, The University of Tokyo
-
YOSHIDA AKIHIRO
Ocean Research Institute, The University of Tokyo
-
OKAMOTO KEN
Graduate School of Agricultural and Life Sciences, The University of Tokyo
-
YAMADA MIHOKO
Faculty of Agriculture, Tokyo University of Agriculture and Technology
-
TAKADA HIDESHIGE
Faculty of Agriculture, Tokyo University of Agriculture and Technology
-
Toyoda Keita
Ocean Research Institute The University Of Tokyo
-
Yamada Mihoko
Faculty Of Agriculture Tokyo University Of Agriculture And Technology
-
Ohwada Koichi
Faculty Of Environmental And Symbiotic Sciences Prefectural University Of Kumamoto
-
Takada Hideshige
Faculty Of Agriculture Tokyo University Of Agriculture And Technology
-
Wada Minoru
Ocean Research Institute The University Of Tokyo
-
Yoshida Akihiro
Ocean Research Institute The University Of Tokyo
-
Okamoto Ken
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
関連論文
- 八代海における植物プランクトンの増殖に与える水温, 塩分および光強度の影響
- 八代海東海岸におけるアマモ Zostera marina の分布
- C-225 FISH法による東京湾海水中微生物群集の解析(遺伝子解析など-3、群集構造解析-4,ポスター発表)
- Structure-Activity Relationships of Neuromedin U. V. Study on the Stability of Porcine Neuromedin U-8 at the C-Terminal Asparagine Amide under Mild Alkaline and Acidic Conditions
- イトゴカイおよびバクテリアを用いた有機汚泥の堆積した海底の生物浄化
- 石油および石油と分散型油処理剤添加後にみられた中規模半閉鎖型海洋生態系における植物プランクトン群集の遷移
- 低濃度の石油が混入した実験的閉鎖生態系における海洋細菌群集の変動
- B-38 変性剤勾配ゲル電気泳動法(DGGE法)を用いた閉鎖的実験生態系における石油および分散剤の微生物群集に与える影響(群集構造解析,口頭発表)
- Bioremediation of organically enriched sediment deposited below fish farms with artificially mass-cultured colonies of a deposit-feeding polychaete Capitella sp. I
- PB-22 The succession of microbial community in the fish-farm sediment during bioremediation by introducing artificially mass-cultured colonies of a small polychaete, Capitella sp. I(Monitoring,Poster presentation B)