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Main Title Iron Photochemistry in Seawater from the Equatorial Pacific (Revised).
Author Johnson, K. S. ; Coale, K. H. ; Elrod, V. A. ; Tindale, N. W. ;
CORP Author Moss Landing Marine Labs., CA. ;Monterey Bay Aquarium Research Inst., Pacific Grove, CA. ;Texas A and M Univ., College Station.;Environmental Research Lab., Narragansett, RI.;Office of Naval Research, Arlington, VA.
Publisher c1994
Year Published 1994
Report Number N00014-89-J-1070 ;N00014-90-J-1355; EPA/600/J-94/493 ; ERLN-X217
Stock Number PB95-155123
Additional Subjects Iron ; Photochemical reactions ; Sea water ; Pacific Ocean ; Nutrients ; Surface waters ; Diurnal variations ; Phytoplankton ; Reprints ; Equitorial Pacific ; Iron cycling
Library Call Number Additional Info Location Last
NTIS  PB95-155123 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 16p
The photochemistry of iron in surface waters, and its implications to iron bioavailability, was examined on two cruises to the equatorial Pacific. Decktop incubations were performed with equatorial seawater to which iron was added in various chemical forms. Results showed clear diurnal patterns in measurable iron levels, with the highest levels occurring midday. Model calculations were based on independently determined rate constants. The authors suggest that photochemical reactions may have a significant impact on iron availability to phytoplankton in the open ocean.