東部インド洋における溶存セレンの分布
インド洋における5測点で, 溶存態セレン (亜セレン酸; +4価, セレン酸; +6価, 有機態セレン; -2価) の鉛直分布を高速液体クロマトグラフィー-2, 3-ジアミノナフタレン (DAN) 蛍光検出法を用いて測定した. 表層300m間における亜セレン酸の濃度はかなり低濃度であり, その鉛直分布は栄養塩型 (表層低は濃度で, 深度と共に増加) であった.亜セレン酸と栄養塩元素との間に良好な相関関係が各水柱で認められ, インド洋に関しての化学量論モデルを構築した. これらのモデルは, インド洋での亜セレン酸に関する生物地球化学的サイクルがその他の海域と類似していることを示していた. セレン...
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| Published in | 日本海水学会誌 Vol. 55; no. 3; pp. 175 - 182 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
日本海水学会
2001
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| Online Access | Get full text |
| ISSN | 0369-4550 2185-9213 |
| DOI | 10.11457/swsj1965.55.175 |
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| Abstract | インド洋における5測点で, 溶存態セレン (亜セレン酸; +4価, セレン酸; +6価, 有機態セレン; -2価) の鉛直分布を高速液体クロマトグラフィー-2, 3-ジアミノナフタレン (DAN) 蛍光検出法を用いて測定した. 表層300m間における亜セレン酸の濃度はかなり低濃度であり, その鉛直分布は栄養塩型 (表層低は濃度で, 深度と共に増加) であった.亜セレン酸と栄養塩元素との間に良好な相関関係が各水柱で認められ, インド洋に関しての化学量論モデルを構築した. これらのモデルは, インド洋での亜セレン酸に関する生物地球化学的サイクルがその他の海域と類似していることを示していた. セレン酸は, 表層水中で優占種であり, またその濃度は表層から底層までほとんど一定であった. しかしながら, そのセレン酸の平均濃度はそれぞれの測点で異なっていた. 有機態セレンは外洋深層水中で初めて検出され, その鉛直分布には様々なタイプのがあることが分かった. |
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| AbstractList | インド洋における5測点で, 溶存態セレン (亜セレン酸; +4価, セレン酸; +6価, 有機態セレン; -2価) の鉛直分布を高速液体クロマトグラフィー-2, 3-ジアミノナフタレン (DAN) 蛍光検出法を用いて測定した. 表層300m間における亜セレン酸の濃度はかなり低濃度であり, その鉛直分布は栄養塩型 (表層低は濃度で, 深度と共に増加) であった.亜セレン酸と栄養塩元素との間に良好な相関関係が各水柱で認められ, インド洋に関しての化学量論モデルを構築した. これらのモデルは, インド洋での亜セレン酸に関する生物地球化学的サイクルがその他の海域と類似していることを示していた. セレン酸は, 表層水中で優占種であり, またその濃度は表層から底層までほとんど一定であった. しかしながら, そのセレン酸の平均濃度はそれぞれの測点で異なっていた. 有機態セレンは外洋深層水中で初めて検出され, その鉛直分布には様々なタイプのがあることが分かった. |
| Author | 木村, 宗人 服部, 裕史 中口, 譲 平木, 敬三 |
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| References | 4) C. I. Measures and J. D. Burton,“The vertical distribution and oxidation states of dissolved selenium in the Northeast Atlantic Ocean and their relationship to biological processes”, Earth Planet. Sci. Lett., 46, pp.385-396 (1980 23) H. Hattori, M. Kimura, Y. Nakaguchi and K. Hiraki,“Biogeochemical study on selenium in the Indian Ocean”, J. School Sci. Eng. Kinki Univ., 35, pp.73-79 (1999 13) D. M. Guan and J. M. Martin,“Selenium distribution in the Rhône delta and t he Gulf of Lions”, Mar. Chem., 36, pp.303-316 (1991 21) Y. Nakaguchi, Y. Saito, X. Dong, T. Fujii and K. Hiraki,“Studies on basic conditions for determination of selenium with high performance liquid chromatography”, J. School Sci. Eng. Kinki Univ., 31, pp.23-29 (in Japanese with English abstract)(1995 22) V. Ittekkot, R. R. Nair, S. Honjo, V. Ramaswamy, M. Bartsch, S. Manganini and B. N. Desai,“Enhanced particle fluxes in Bay of Bengal induced by injection of fresh water”, Nature, 351, pp.385-387 (1991 17) J. H. Martin and S. E. Fitzwater,“Iron deficiency limits phytoplankton growth in the n orth-east Pacific subarctic”, Nature 331, pp.341-343 (1988 9) C. I. Measures, B. C. Grant, B. J. Mangum and J. M. Edmond,“The relationship of the distribution of dissolved selenium IV and VI in three oceans and biological processes”, In C. S. Wong, E. Boyle, K. W. Bruland, J. D. Burton and M. D. Goldberg (eds.),“Trace Elements in Seawater”, pp.73-83, Plenum, New York, NY,(1983 7) L. G. Sillén,“Oceanography”, M. Sears, Amer. Assoc. Advancement of Science, Washington, D. C.(1961), pp.549-581 18) T. Gamo (ed.),“Preliminary report of the Hakuho Maru Cruise KH96-5 (Piscis Austrinus Expedition)”. pp.36-37, Ocean Research Institute, Univ. of Tokyo,(1997 8) C. I. Measures, R. E. McDuff and J. M. Edmond,“Selenium redox chemistry at GEOSECS I reoccupation”, Earth Planet. Sci. Lett., 49, pp.102-108 (1980 25) E. R. M. Druffel, P. M. Williams, J. E. Bauer and J. R. Ertel,“Cycling of dissolved and particulate organic matter in the open ocean”, J. Geophys. Res., 97, pp.15639-15659 (1992 16) J. J. Wrench and C. I. Measures,“Temporal variations in dissolved selenium in a coastal ecosystem”, Nature, 299, pp.431-433 (1982 3) G. A. Cutter and K. W. Bruland,“The marine biogeochemistry of selenium: a re-evaluation”, Limnol. Oceanogr., 29, pp.1179-1192 (1984 28) W. S. Broecker, J. R. Toggweiler and T. Takahashi,“The Bay of Bengal-a major nutrient source for the deep Indian Ocean”, Earth Planet. Sci. Lett., 49, pp.506-512 (1980 27) C. K. Rao, S. W. A. Naqvi, M. D. Kumar, S. J. D. Varaprasad, D. A. Jayakumar, M. D. George and S. Y. S. Singbal,“Hydrochemistry of the Bay of Bengal: possible reasons for a different water-column cycling of carbon and nitrogen from the Arabia Sea”, Mar. Chem., 47, pp.279-290 (1994 11) G. A. Cutter and L. S. Cutter,“Metalloids in the high latitude North Atlantic Ocean: sources and internal cycling”, Mar. Chem., 61, pp.25-36 (1998 24) H. Yamada,“Distribution and behavior of selenium in soils”, Bunseki, pp.433-440 (in Japanese)(1994 1) T. Aono, Y. Nakaguchi and K. Hiraki,“Vertical profiles of dissolved selenium in the North Pacific”, Geochem. J., 25, pp.45-55 (1991 5) Y. Sugimura, Y. Suzuki and Y. Miyake,“The content of selenium and its chemical form in sea water”, J. Oceanogr. Soc. Japan, 32, pp.235-241 (1976 6) K. Takayanagi and G. T. F. Wong,“Dissolved inorganic and organic selenium in the Orca Basin”, Geochim. Cosmochim. Acta, 49, pp.539-546 (1985 19) Y. Nakaguchi, K. Hiraki, Y. Tamari, Y. Fukunaga, Y. Nishikawa and T. Shigematsu,“Fluorometric determination of inorganic selenium (IV), selenium (VI) and organic seleniu m in natural waters”, Anal. Sci., 1, pp.247-252 (1985 14) C. I. Measures and J. D. Burton,“Behavior and speciation of dissolved selenium in estuarine waters”, Nature, 273, pp.293-295 (1978 26) P. G. Coble,“Characterization of marine and terrestrial DOM in seawater using excitatio nemission matrix spectroscopy”, Mar. Chem., 51, pp.325-346 (1996 20) H. Yamada, T. Hattori, S. Matsuda and Y. Kang,“Determination of selenium in soils by HPLC with fluorescence detection”, Bunseki Kagaku, 36, pp.542-546 (in Japanese with English abstract)(1987 15) K. Takayanagi and G. T. F. Wong,“Organic and colloidal selenium in southern Chesapeake Bay and adjacent waters”, Mar. Chem., 14, pp.141-148 (1984 2) G. A. Cutter,“Selenium in reducing waters”, Science, 217, pp.829-831 (1982 10) G. A. Cutter and L. S. Cutter,“Behavior of dissolved antimony, arsenic, and selenium in the Atlantic Ocean”, Mar. Chem., 49, pp.295-306 (1995 12) D. Amouroux and O. F. X. Donard,“Evasion of selenium to the atmosphere via biomethylation processes in the Gironde estuary, France”, Mar. Chem., 58, pp.173-188 (1997 |
| References_xml | – reference: 20) H. Yamada, T. Hattori, S. Matsuda and Y. Kang,“Determination of selenium in soils by HPLC with fluorescence detection”, Bunseki Kagaku, 36, pp.542-546 (in Japanese with English abstract)(1987) – reference: 7) L. G. Sillén,“Oceanography”, M. Sears, Amer. Assoc. Advancement of Science, Washington, D. C.(1961), pp.549-581 – reference: 18) T. Gamo (ed.),“Preliminary report of the Hakuho Maru Cruise KH96-5 (Piscis Austrinus Expedition)”. pp.36-37, Ocean Research Institute, Univ. of Tokyo,(1997) – reference: 24) H. Yamada,“Distribution and behavior of selenium in soils”, Bunseki, pp.433-440 (in Japanese)(1994) – reference: 11) G. A. Cutter and L. S. Cutter,“Metalloids in the high latitude North Atlantic Ocean: sources and internal cycling”, Mar. Chem., 61, pp.25-36 (1998) – reference: 13) D. M. Guan and J. M. Martin,“Selenium distribution in the Rhône delta and t he Gulf of Lions”, Mar. Chem., 36, pp.303-316 (1991) – reference: 21) Y. Nakaguchi, Y. Saito, X. Dong, T. Fujii and K. Hiraki,“Studies on basic conditions for determination of selenium with high performance liquid chromatography”, J. School Sci. Eng. Kinki Univ., 31, pp.23-29 (in Japanese with English abstract)(1995) – reference: 10) G. A. Cutter and L. S. Cutter,“Behavior of dissolved antimony, arsenic, and selenium in the Atlantic Ocean”, Mar. Chem., 49, pp.295-306 (1995) – reference: 6) K. Takayanagi and G. T. F. Wong,“Dissolved inorganic and organic selenium in the Orca Basin”, Geochim. Cosmochim. Acta, 49, pp.539-546 (1985) – reference: 22) V. Ittekkot, R. R. Nair, S. Honjo, V. Ramaswamy, M. Bartsch, S. Manganini and B. N. Desai,“Enhanced particle fluxes in Bay of Bengal induced by injection of fresh water”, Nature, 351, pp.385-387 (1991) – reference: 26) P. G. Coble,“Characterization of marine and terrestrial DOM in seawater using excitatio nemission matrix spectroscopy”, Mar. Chem., 51, pp.325-346 (1996) – reference: 9) C. I. Measures, B. C. Grant, B. J. Mangum and J. M. Edmond,“The relationship of the distribution of dissolved selenium IV and VI in three oceans and biological processes”, In C. S. Wong, E. Boyle, K. W. Bruland, J. D. Burton and M. D. Goldberg (eds.),“Trace Elements in Seawater”, pp.73-83, Plenum, New York, NY,(1983) – reference: 15) K. Takayanagi and G. T. F. Wong,“Organic and colloidal selenium in southern Chesapeake Bay and adjacent waters”, Mar. Chem., 14, pp.141-148 (1984) – reference: 12) D. Amouroux and O. F. X. Donard,“Evasion of selenium to the atmosphere via biomethylation processes in the Gironde estuary, France”, Mar. Chem., 58, pp.173-188 (1997) – reference: 16) J. J. Wrench and C. I. Measures,“Temporal variations in dissolved selenium in a coastal ecosystem”, Nature, 299, pp.431-433 (1982) – reference: 23) H. Hattori, M. Kimura, Y. Nakaguchi and K. Hiraki,“Biogeochemical study on selenium in the Indian Ocean”, J. School Sci. Eng. Kinki Univ., 35, pp.73-79 (1999) – reference: 8) C. I. Measures, R. E. McDuff and J. M. Edmond,“Selenium redox chemistry at GEOSECS I reoccupation”, Earth Planet. Sci. Lett., 49, pp.102-108 (1980) – reference: 5) Y. Sugimura, Y. Suzuki and Y. Miyake,“The content of selenium and its chemical form in sea water”, J. Oceanogr. Soc. Japan, 32, pp.235-241 (1976) – reference: 14) C. I. Measures and J. D. Burton,“Behavior and speciation of dissolved selenium in estuarine waters”, Nature, 273, pp.293-295 (1978) – reference: 3) G. A. Cutter and K. W. Bruland,“The marine biogeochemistry of selenium: a re-evaluation”, Limnol. Oceanogr., 29, pp.1179-1192 (1984) – reference: 27) C. K. Rao, S. W. A. Naqvi, M. D. Kumar, S. J. D. Varaprasad, D. A. Jayakumar, M. D. George and S. Y. S. Singbal,“Hydrochemistry of the Bay of Bengal: possible reasons for a different water-column cycling of carbon and nitrogen from the Arabia Sea”, Mar. Chem., 47, pp.279-290 (1994) – reference: 28) W. S. Broecker, J. R. Toggweiler and T. Takahashi,“The Bay of Bengal-a major nutrient source for the deep Indian Ocean”, Earth Planet. Sci. Lett., 49, pp.506-512 (1980) – reference: 4) C. I. Measures and J. D. Burton,“The vertical distribution and oxidation states of dissolved selenium in the Northeast Atlantic Ocean and their relationship to biological processes”, Earth Planet. Sci. Lett., 46, pp.385-396 (1980) – reference: 25) E. R. M. Druffel, P. M. Williams, J. E. Bauer and J. R. Ertel,“Cycling of dissolved and particulate organic matter in the open ocean”, J. Geophys. Res., 97, pp.15639-15659 (1992) – reference: 1) T. Aono, Y. Nakaguchi and K. Hiraki,“Vertical profiles of dissolved selenium in the North Pacific”, Geochem. J., 25, pp.45-55 (1991) – reference: 2) G. A. Cutter,“Selenium in reducing waters”, Science, 217, pp.829-831 (1982) – reference: 19) Y. Nakaguchi, K. Hiraki, Y. Tamari, Y. Fukunaga, Y. Nishikawa and T. Shigematsu,“Fluorometric determination of inorganic selenium (IV), selenium (VI) and organic seleniu m in natural waters”, Anal. Sci., 1, pp.247-252 (1985) – reference: 17) J. H. Martin and S. E. Fitzwater,“Iron deficiency limits phytoplankton growth in the n orth-east Pacific subarctic”, Nature 331, pp.341-343 (1988) |
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