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Jonathan P. Zehr
Affiliation:
University of California-Santa Cruz (UCSC)
Address:
E&MS A438, Ocean Sciences Department
1156 High Street
Santa Cruz, CA
USA 95064
ORCiD:
0000-0002-5691-5408
Activities reported for Jonathan P. Zehr:
Program coordination
None
Project coordination
Center for Microbial Oceanography: Research and Education
(C-MORE)
Co-Principal Investigator
Biology and Ecology of Newly Discovered Diazotrophs in the Open Ocean
(DIAZOTROPHS)
Principal Investigator
Oligotrophic phytoplankton community response to changes in N substrates and the resulting impact on genetic, taxonomic and functional diversity
(PhytoNsubResponse)
Lead Principal Investigator
Significance of metabolic interactions of diatom-diazotrophic associations (DDAs) for ocean ecosystems
(DDA Metabolic Interactions)
Co-Principal Investigator
Simons Collaboration on Ocean Processes and Ecology
(SCOPE)
Co-Principal Investigator
Collaborative Research: Biogeochemical significance of the abundant, uncultivated symbiotic cyanobacteria UCYN-A
(BSUCS)
Principal Investigator, Contact
Deployment coordination
Deployment
Synonyms
Platform
Role
KM0703
SPEEDO, SPAK
Kilo Moana
Chief Scientist
SJ0609
Seward Johnson
Chief Scientist
Datasets
Project:
Collaborative Research: Biogeochemical significance of the abundant, uncultivated symbiotic cyanobacteria UCYN-A
Dataset
Version Date
Current State
Single cell N2 fixation measurements from UCYN-A symbiosis in the Southern California Current System from May 2017 (SP1714) and October (SP1724) SCCS cruises.
Principal Investigator
2024-06-24
Final no updates expected
Bulk N2 fixation measurements from UCYN-A symbiosis in the Southern California Current System from May 2017 (SP1714) and October (SP1724) SCCS cruises.
Principal Investigator
2024-06-24
Final no updates expected
Hydrological, biogeochemcial and N2-fixer qPCR-derived abundance data for May 2017 (SP1714) and October (SP1724) SCCS cruises.
Principal Investigator
2024-06-24
Final no updates expected
Experimental data testing the N2 and CO2 fixing activity of the UCYN-A/haptophyte symbiosis in nitrate and ammonium rich waters in the California Current from May to October 2017
Co-Principal Investigator
2023-11-29
Final no updates expected
CTD sensor data from two cruises from R/V Robert Gordon Sproul SP1714 in the California Current waters off the coast of Southern California and Baja California from 2017-2018
Co-Principal Investigator
2023-11-29
Final no updates expected
Project:
Oligotrophic phytoplankton community response to changes in N substrates and the resulting impact on genetic, taxonomic and functional diversity
Dataset
Version Date
Current State
Phytoplankton MicroTOOLs microarray-based metatranscriptomes collected from a nutrient amendment experiment conducted during R/V New Horizon Cruise NH1417 in the California Current System from 2014-08-23 to 2014-08-26
Principal Investigator
2019-07-18
Final no updates expected
Photosynthetic picoplankton abundances from samples collected during Hawaii Ocean Time-series (HOT) cruises from 2011-2013 (PhytoNsubResponse project)
Co-Principal Investigator
Preliminary and in progress
Phytoplankton pigments from samples collected during Hawaii Ocean Time-series (HOT) cruises from 2011-2013 (PhytoNsubResponse project)
Co-Principal Investigator
Preliminary and in progress
Size-fractioned primary production (14C-bicarbonate assimilation rates) from samples collected during Hawaii Ocean Time-series (HOT) cruises from 2011-2013 (PhytoNsubResponse project)
Co-Principal Investigator
Preliminary and in progress
Measurements of inorganic nutrients (nitrate+nitrite, phosphate, silicate, and ammonium) from samples collected during Hawaii Ocean Time-series (HOT) cruises from 2011-2013 (PhytoNsubResponse project)
Co-Principal Investigator
Preliminary and in progress
18S rRNA gene sequence from the euphotic zone at Station ALOHA from near-monthly samples collected during Hawaii Ocean Time-series (HOT) program cruises 230-252 between 2011 and 2013 (PhytoNsubResponse project)
Co-Principal Investigator
2017-08-25
Final no updates expected
Size fractionated and group-specific rates of 14C-primary production by Prochlorococcus, Synechococcus, and photosynthetic picoeukaryotes from samples collected during Hawaii Ocean Time-series (HOT) program cruises 230-252 between 2012 and 2013
Co-Principal Investigator
2017-08-25
Final no updates expected
Niskin bottle sample data from R/V New Horizon NEMO cruise NH1417 in the Eastern Pacific between San Diego and Hawaii from August to September 2014 (Phyto response to N substrates project)
Co-Principal Investigator
2018-03-09
Preliminary and in progress
CTD profile downcasts from R/V New Horizon NEMO cruise NH1417 in the Eastern Pacific between San Diego and Hawaii from August to September 2014 (Phyto response to N substrates project)
Co-Principal Investigator
2017-03-23
Preliminary and in progress
Cruise tracks from R/V New Horizon NH1417 in the Eastern Pacific between San Diego and Hawaii in 2014 (Phyto response to N substrates project)
Lead Principal Investigator
2016-01-11
Final no updates expected
Project:
Center for Microbial Oceanography: Research and Education
Dataset
Version Date
Current State
Diazotroph abundances (nifH gene) from multiple HOE-DYLAN cruises from July to September 2012 (C-MORE project)
Principal Investigator
2023-08-15
Final no updates expected
qPCR FCM from R/V Kilo Moana KM0715 in the North Pacific Subtropical Gyre north of Hawaii, near (24 N, 159.0 W) from August 2007 (C-MORE project)
Principal Investigator
2009-09-30
Preliminary and in progress
Project:
Biology and Ecology of Newly Discovered Diazotrophs in the Open Ocean
Dataset
Version Date
Current State
Abundance and distribution of diazotrophs determined via qPCR from R/V Kilo Moana KM0703, R/V Seward Johnson SJ0609 in the tropical and subtropical SW Pacific and tropical N Atlantic from 2006-2007 (DIAZOTROPHS project)
Principal Investigator
2010-10-21
Final no updates expected
CTD Station Locations from R/V Kilo Moana, R/V Seward Johnson KM0703, SJ0609 in the tropical and subtropical Southwest Pacific, and tropical North Atlantic from 2006-2007 (DIAZOTROPHS project)
Principal Investigator
2009-11-16
Final no updates expected
CTD Bottle Data from R/V Kilo Moana, R/V Seward Johnson KM0703, SJ0609 in the tropical and subtropical Southwest Pacific, and tropical North Atlantic from 2006-2007 (DIAZOTROPHS project)
Principal Investigator
2009-11-12
Final no updates expected
CTD Profiles from R/V Kilo Moana, R/V Seward Johnson KM0703, SJ0609 in the tropical and subtropical Southwest Pacific, and tropical North Atlantic from 2006-2007 (DIAZOTROPHS project)
Principal Investigator
2009-11-12
Final no updates expected
Project:
Biocomplexity of Aquatic Microbial Systems
Dataset
Version Date
Current State
Nutrients and Pigments from R/V Cape Henlopen BAMS-multi in the Chesapeake Bay from 2000-2004 (BAMS project)
Co-Principal Investigator
2008-11-19
Final no updates expected
Bacterial Productivity and Photosynthesis Rates from R/V Cape Henlopen BAMS-multi in the Chesapeake Bay from 2001-2004 (BAMS project)
Co-Principal Investigator
2008-11-19
Final no updates expected