Microbial Contribution to the Removal of Mn from the        Deep Sea: Extended Hydrothermal Vent Plumes
{'Code': '06040302', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Nicholas Anderson', 'PO_EMAI': 'nanderso@nsf.gov', 'PO_PHON': '7032924715'}
This research will evaluate the role of micro-organisms                 in the scavenging and removal of Mn in the vicinity of extended                 hydrothermal vent plumes.  Field experiments in the northeast                   Pacific are planned to detect mechanisms for packaging Mn into                  particles and mechanisms for transporting these particles to                    the sediments.  The sampling will be based on the conceptual                    model that capsuled marine bacteria package the Mn into parti-                  cles and that zooplankton graze the particles and repackage                     them in large fecal pellets that sediment rapidly to the sea                    floor.  The biotic and abiotic Mn-removal mechanisms will be                    differentiated by the use of metabolic inhibitors.  This work                   will enhance our understanding of the removal of transition-                    metals from seawater, our understanding of the role of biolo-                   gical processes in chemical transformations in seawater, and                    our understanding of the role of hydrothermal vents in                          geochemical metal cycling.
{'FirstName': 'James', 'LastName': 'Cowen', 'PI_MID_INIT': 'P', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'James P Cowen', 'EmailAddress': 'jcowen@soest.hawaii.edu', 'NSF_ID': '000456590', 'StartDate': '09/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Hawaii', 'CityName': 'HONOLULU', 'ZipCode': '968222247', 'PhoneNumber': '8089567800', 'StreetAddress': '2425 CAMPUS RD SINCLAIR RM 1', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Hawaii', 'StateCode': 'HI', 'CONGRESSDISTRICT': '01', 'CONGRESS_DISTRICT_ORG': 'HI01', 'ORG_UEI_NUM': 'NSCKLFSSABF2', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF HAWAII', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '1670', 'Text': 'Chemical Oceanography'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8711786.xml'}