Jeffrey W. Krause

Affiliation: University of South Alabama; and Dauphin Island Sea Lab (USA-DISL)

Address: []

Orcid: 0000-0003-2479-6229

Project: Costa Rica Dome FLUx and Zinc Experiments (2 datasets)

Dataset	Latest Version Date	Current State
Water-column particulate biogenic silica and net rate of biogenic silica production measured on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project) Role: Contact	2015-04-23	Final no updates expected
Particulate biogenic silica fluxes from sediment trap arrays deployed on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project) Role: Contact	2015-04-23	Final no updates expected

Project: Understanding the Role of Picocyanobacteria in the Marine Silicate Cycle (9 datasets)

Dataset	Latest Version Date	Current State
Water column particulate silica, standing stocks, and productivity rates from R/V Atlantic Explorer cruises AE1218, AE1228, AE1319, AE1322 in Bermuda, and NW Atlantic from 2012-2013 (Si_in_Syn project) Roles: Principal Investigator, Contact	2016-01-05	Final no updates expected
Silica quotas of Synechococcus cells cultured under varying light conditions from laboratory experiments at the Dauphin Island Sea Lab in 2014 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Water-soluble fraction of silica in Synechococcus cells grown in different silicic acid concentrations from laboratory experiments at the Dauphin Island Sea Lab between 2013-2015 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Si quotas of Synechococcus cells grown in different silicic acid concentrations from laboratory experiments at the Dauphin Island Sea Lab between 2013 and 2015 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Synechococcus silica quotas from cultures with various Si:P mole ratios from laboratory experiments at the Dauphin Island Sea Lab from June to August of 2015 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Growth rate of Synechococcus cells grown in different silicic acid concentrations from laboratory experiments at the Dauphin Island Sea Lab between 2013 and 2015 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Synechococcus cell silica uptake from cultures with added nutrients from laboratory experiments at the Dauphin Island Sea Lab between 2013 and 2015 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Synechococcus silica uptake rates from cultures with and without added orthophospate from laboratory experiments at the Dauphin Island Sea Lab from August of 2013 to September of 2014 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected
Silica uptake by Synechococcus cells in response to a gradient of silicic acid concentrations from lab experiments at Dauphin Island Sea Lab and University of Santa Barbara between 2012-2015 (Si_in_Syn project) Roles: Principal Investigator, Contact	2017-12-04	Final no updates expected

Project: Group-Specific Diatom Silica Production in a Coastal Upwelling System (5 datasets)

Dataset	Latest Version Date	Current State
Underway Data Acquisition System (UDAS) data from R/V Point Sur cruise PS1312 along the Central California coast from June to July of 2013 (Diatom Group Si Prod project) Role: Principal Investigator	2017-08-29	Final no updates expected
Silicon uptake rates from samples collected during the R/V Point Sur cruise PS1312 along the Central California coast from June to July of 2013 (Diatom Group Si Prod project) Role: Principal Investigator	2018-03-12	Final with updates expected
CTD profiles from R/V Point Sur cruise PS1312 off the Central California Coast from June to July of 2013 (Diatom Group Si Prod project) Roles: Principal Investigator, Contact	2017-08-30	Final no updates expected
CTD bottle data from R/V Point Sur cruise PS1312 off the Central California Coast from June to July of 2013 (Diatom Group Si Prod project) Roles: Principal Investigator, Contact	2017-08-16	Final no updates expected
Silica production rates and concentrations quantified using 32Si and PDMPO using samples from the R/V Point Sur cruise PS1312 along the Central California coast from June to July of 2013 (Diatom Group Si Prod project) Role: Principal Investigator	2018-03-12	Final with updates expected

Project: Collaborative Research: Resolving the processes controlling the distribution of the biogenic trace gas dimethylsulfide and related compounds in the Subarctic NE Pacific (1 datasets)

Dataset	Latest Version Date	Current State
Standing stocks and rates for organic sulfur compounds during summer in the subarctic Northeast Pacific Role: Contact	2021-06-14	Final no updates expected

Project: The biotic and abiotic controls on the Silicon cycle in the northern Gulf of Mexico (11 datasets)

Dataset	Latest Version Date	Current State
Stable isotopes in reactive silica pools of Mississippi River plume sediments collected aboard the R/V Pelican in May 2017 Role: Co-Principal Investigator	2020-01-08	Final no updates expected
Organic polymer formation and domoic acid adsorption from experiments conducted using water samples collected in northern Gulf of Mexico in 2018 and 2019 Role: Principal Investigator	2020-06-24	Final no updates expected
Domoic acid assimilation in copepods from experiments conducted using water samples collected in northern Gulf of Mexico in 2019 Role: Principal Investigator	2020-06-24	Final no updates expected
Domoic acid assimilation in copepods by consuming organic polymers and Pseudo-nitzschia from experiments conducted using water samples collected in northern Gulf of Mexico in 2017 and 2018. Role: Principal Investigator	2020-06-24	Final no updates expected
Use of a diatom inhibitor reveals contribution to seagrass ecosystem in experiments conducted using seagrass cores from 1m depth in Grand Bay in 2017. Role: Principal Investigator	2020-08-10	Final no updates expected
Silica and nitrogen analyses from incubation experiments conducted using seagrass cores from 1m depth in Grand Bay in 2017. Role: Principal Investigator	2020-08-10	Final no updates expected
Silicon Uptake Kinetics sampled aboard the R/V Pelican during during PE17-04 and PE17-20 along the Northern Gulf of Mexico, specifically the Louisiana Shelf region dominated by the discharge of the Mississippi River plume. Role: Principal Investigator	2020-08-31	Final no updates expected
Water column data sampled aboard the R/V Pelican during August and September 2016 and May 2017 in Northern Gulf of Mexico, specifically the Louisiana Shelf region dominated by the discharge of the Mississippi River plume. Role: Principal Investigator	2020-09-01	Final no updates expected
One meter binned CTD data collected aboard the R/V Pelican during PE17-04 and PE17-20 along the Northern Gulf of Mexico, specifically the Louisiana Shelf region dominated by the discharge of the Mississippi River plume. Role: Principal Investigator	2020-08-27	Final no updates expected
An investigation into the characteristics of the reactive pools of Mississippi River plume sediments collected August to September of 2016 and May 2017 aboard the R/V Pelican. Role: Co-Principal Investigator	2020-09-04	Final no updates expected
Results from a laboratory-based investigation into sediment Silicon sorption capacities using standardized clay samples and the radioactive tracer 32Si Role: Co-Principal Investigator	2024-04-16	Final no updates expected

Project: Collaborative Research: Iron Incorporation into Biogenic Silica (1 datasets)

Dataset	Latest Version Date	Current State
Biogenic and lithogenic silica concentrations from marine suspended particles collected during the 2011 CLIVAR S04P expedition on RVIB Nathaniel B. Palmer from February 19 to April 19, 2011 Role: Scientist	2024-07-08	Data not available

Project: Collaborative Research: Understanding substrate limitation and Lithium and Silicon isotope fractionation during secondary clay formation in marine systems (1 datasets)

Dataset	Latest Version Date	Current State
Sediment core porewater and particulate measurements from three sites on the Louisiana Shelf sampled during R/V Pelican cruises in August 2021 Role: Co-Principal Investigator	2024-12-12	Preliminary and in progress

Project: Collaborative Research: RAPID: Extreme disturbances/perturbations to coastal deposition systems (1 datasets)

Dataset	Latest Version Date	Current State
Sediment core porewater and particulate measurements from three sites on the Louisiana Shelf sampled during R/V Pelican cruises from December 2021 through August 2022 Role: Co-Principal Investigator	2023-12-11	Data not available