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Title of Journal: J Oceanogr

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Abbravation: Journal of Oceanography

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Springer Japan

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DOI

10.1007/bf02704964

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ISSN

1573-868X

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Stoichiometry among bioactive trace metals in seaw

Authors: Abigail Parcasio Cid Syouhei Urushihara Tomoharu Minami Kazuhiro Norisuye Yoshiki Sohrin
Publish Date: 2011/09/16
Volume: 67, Issue: 6, Pages: 747-764
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Abstract

The distribution of Al Mn Fe Co Ni Cu Zn Cd and Pb in seawater was investigated on the Bering Sea shelf 56–64°N 165–169°W in September 2000 The unfiltered and filtered seawater samples were used for determination of total dissolvable TD and dissolved D metals M respectively The TDM concentrations were generally higher than in the Pacific Ocean TDCd was highest in deep water of the outer shelf domain and dominated by dissolved species The other TDM were highest at stations close to the Yukon River delta and had higher fractions of labile particulate LP species that were obtained as the difference between TDM and DM Dissolved Al Ni and Cu were characterized by input from the Yukon River Dissolved Mn and Co showed maximums on the bottom of the coastal domain suggesting influence of sedimentary Mn reduction The correlations of DZn DCd and macronutrients indicated their distributions were largely controlled through uptake by microorganisms and remineralization from settling particles All these three processes river input sedimentary reduction and biogeochemical cycle had an influence on the distribution of DFe DPb was fairly uniformly distributed in the study area The stoichiometry of DM in the Bering Sea shelf showed enrichment of Co and Pb and depletion of Ni Cu Zn and Cd compared with that in the North Pacific The LPM/LPAl ratio revealed significant enrichment of the other eight metals relative to their crustal abundance suggesting importance of formation of Fe–Mn oxides and adsorption of trace metals on the oxidesAPC was supported by a Monbukagakusho MEXT scholarship We are grateful to Captain Masaharu Akamine and the crew of R/V Mirai JAMSTEC for their help during the MR00K06 cruise We thank the chief scientist Dr Takatoshi Takizawa Prof Noriyuki Tanaka and onboard scientists and technicians Basic oceanographic parameters were obtained thanks to staff from JAMSTEC and Nippon Marine Enterprises This research was partly supported by funds from the Steel Industry Foundation for the Advancement of Environmental Protection Technology and from GrantinAid of Scientific Research the Ministry of Education Culture Sports Science and Technology of Japan

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  1. Deep-sea meiofauna off the Pacific coast of Tohoku and other trench slopes around Japan: a comparative study before and after the 2011 off the Pacific coast of Tohoku Earthquake
  2. Estimates of non-tidal exchange transport between the Sea of Okhotsk and the North Pacific
  3. Ecological characteristics of Walleye pollock eggs and larvae in the southeastern Bering Sea during the late 1970s
  4. Seasonal variability of phytoplankton community structure in the subtropical western North Pacific
  5. A piecewise curve-fitting technique for vertical oceanographic profiles and its application to density distribution
  6. Further evidence for non-reemergence of winter SST anomalies in the North Pacific eastern subtropical mode water area
  7. Role of environment and hydrography in determining the picoplankton community structure of Sagami Bay, Japan
  8. A Zonal Pathway for NADW in the South Atlantic
  9. Has the upper portion of the Japan Sea Proper Water formation really been enhancing?
  10. Structure and Transport of the Agulhas Current and Its Temporal Variability
  11. Marine artificial structures as amplifiers of Aurelia aurita s.l. blooms: a case study of a newly installed floating pier
  12. Assessment of turbulence closure models for resonant inertial response in the oceanic mixed layer using a large eddy simulation model
  13. Effect of the along-strait wind on the volume transport through the Tsushima/Korea Strait in September
  14. Interannual variability of Pacific Winter Water inflow through Barrow Canyon from 2000 to 2006
  15. Effects of seawater acidification on hydrolytic enzyme activities
  16. Significant contribution of lytic mortality to bacterial production and DOC cycles in Funka Bay, Japan
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  19. Impact of atmospheric and physical forcings on biogeochemical cycling of dissolved oxygen and nutrients in the coastal Bay of Bengal
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  22. Features of the Comacchio ecosystem transformed during persistent bloom of picocyanobacteria
  23. Interannual variability of the North Pacific Subtropical Countercurrent: role of local ocean–atmosphere interaction
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