Dissertation Research: Alternate States of Metalimnetic     Systems Resulting from Cascading Trophic Interactions
{'Code': '08010208', 'Directorate': {'Abbreviation': 'BIO', 'LongName': 'Direct For Biological Sciences'}, 'Division': {'Abbreviation': 'DEB', 'LongName': 'Division Of Environmental Biology'}}
{'SignBlockName': 'James R. Gosz', 'PO_EMAI': None, 'PO_PHON': None}
This study will evaluate the ability of metalimnetic                            phytoplankton to mitigate the effects on intergrated water column               primary productivity of changes in piscivory.  It is hypothesized               that increased planktivory will lead to reduced grazing,                        increased epilimnetic chlorophyll, reduced transparency, and                    elimination of metalimnetic algae, thereby shifting the locus of                production to the epilimnion with little change in total primary                production.  This mechanism could substantially alter the effects               of cascading trophic interactions in lakes which support deep                   chlorophyll maxima.  The hypothesis will be tested with a whole-                lake planktivore addition experiment.  Both experimental and                    control lakes presently support dense metalimnetic algal                        populations.  Biomass budgets derived from this sampling and                    epilimnetic budgets derived from another project will be used to                analyze the qualitative and quantitative effects of changes in                  planktivory within metalimnetic and epilimnetic algal                           populations, and the implications of those changes to total                     primary productivity.
[{'FirstName': 'Stephen', 'LastName': 'Carpenter', 'PI_MID_INIT': 'R', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Stephen R Carpenter', 'EmailAddress': 'srcarpen@wisc.edu', 'NSF_ID': '000476715', 'StartDate': '07/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Ann', 'LastName': 'St. Amand', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Ann St. Amand', 'EmailAddress': 'phycotech@parrett.net', 'NSF_ID': '000265613', 'StartDate': '07/01/1988', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of Notre Dame', 'CityName': 'NOTRE DAME', 'ZipCode': '465565708', 'PhoneNumber': '5746317432', 'StreetAddress': '940 GRACE HALL', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Indiana', 'StateCode': 'IN', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'IN02', 'ORG_UEI_NUM': 'FPU6XGFXMBE9', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF NOTRE DAME DU LAC', 'ORG_PRNT_UEI_NUM': 'FPU6XGFXMBE9'}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '112800', 'Text': 'Population & Community Ecology'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8800578.xml'}