Dataset: Ulva: pH and temperature time-series

Name: Time-series at 10 minute sampling interval of pH and temperature in Ulva culture pots (Seaweed OA Resilience project)
Published: 2018-03-22
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.732493.1

Spatial Extent: N:34.037 E:-118.875 S:34.037 W:-118.875

Temporal Extent: 2015-05 - 2015-07

Project:

Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae (Seaweed OA Resilience)

Program:

Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA) (SEES-OA)

Principal Investigator:

Janet E. Kubler (California State University Northridge, CSUN)

Co-Principal Investigator:

Steve Dudgeon (California State University Northridge, CSUN)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2018-03-22

Restricted:

Release Date:

2019-06-03

Validated:

Yes

Current State:

Final no updates expected

Time-series at 10 minute sampling interval of pH and temperature in Ulva culture pots (Seaweed OA Resilience project)

Abstract:

This dataset includes time-series at 10-minute sampling interval of pH and temperature in each Ulva lactuca culture pot grown at 15° C and various CO2 levels during trials 3 and 4 (May 30 through July 2015). Data for trial 2 were lost.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2018-03-22	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.732493.1	2019-06-05

Description

Related Datasets:
Ulva: Carbonate chemistry pCO2: Carbonate chemistry of Ulva lactuca culture pots testing the effects of pCO2 variability (Seaweed OA Resilience project)
Ulva: Chl a: Chlorophyll a per unit biomass in Ulva lactuca under ocean acidification (OA) conditions (Seaweed OA Resilience project)
Ulva: CHN and stable isotopes: Stable isotope ratios and mass of carbon and nitrogen in Ulva cells under ocean acidification conditions (Seaweed OA Resilience project)
Ulva: Growth: Growth rates of Ulva exposed to different average and variability of pCO2 (Seaweed OA Resilience project)
Ulva: pH Drift: Carbonate chemistry over a time course with Ulva in pH drift experiments (Seaweed OA Resilience project)
Ulva: Photosynthesis and respiration: Rates of photosynthesis and respiration by Ulva exposed to different average and variability of pCO2 (Seaweed OA Resilience project)
Ulva: seawater delta13C: Stable isotope ratio and concentration of carbon in seawater from Ulva OA experiments (Seaweed OA Resilience project)

Methods & Sampling

Ulva was collected prior to each trial in May, June and July 2015 near Malibu, CA (34°04'12"N 118°56'69"W)

Culture pots were placed in large thermally insulated coolers in a temperature-controlled water bath at 15° C under saturating illumination of ~550 µmoles photons/m^2/s on a 12:12 L:D cycle. pCO2 treatments were supplied to closed culture pots by use of a gas mixing system combining nitrogen, oxygen and carbon dioxide to specific CO2 partial pressures, 20.9% oxygen and the balance being nitrogen.

In situ probes in each culture pot monitored pH and temperature every 10 minutes by sampling and logging values to an Excel spreadsheet to track the dynamics of both variables.

Data Processing Description

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- added columns date, time, ISO_DateTime_Local

Data Files

File
pH_Temp_Timeseries_Ulva.csv (Comma Separated Values (.csv), 1.13 MB) MD5:ee6081b3fe1dd97cc0fb844cc08eaaef Primary data file for dataset ID 732493

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1316198

Deployments

None available yet

Instruments

Aquarium chiller

Supplied Name: Aqua Logic Cyclone Chiller

Supplied Description:

Used to control the temperature of the growth chambers. A Neptune Systems Apex AquaController was used to measure the temperature and pH.

Instrument Type

Generic Name: Aquarium chiller

Generic Description:

Immersible or in-line liquid cooling device, usually with temperature control.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
date	local date	unitless	date_local
time	local time	unitless	time_local
pH_S1P1	pH-Total scale in gas mixing system #1; Pot #1	unitless	pH
T_S1P1	Temperature in situ in gas mixing system #1; Pot #1	degrees Celsius	temp
pH_S1P2	pH-Total scale in gas mixing system #1; Pot #2	unitless	pH
T_S1P2	Temperature in situ in gas mixing system #1 ; Pot #2	degrees Celsius	temp
pH_S2P3	pH-Total scale in gas mixing system #2; Pot #3	unitless	pH
T_S2P3	Temperature in situ in gas mixing system #2; Pot #3	degrees Celsius	temp
pH_S2P4	pH-Total scale in gas mixing system #2; Pot #4	unitless	pH
T_S2P4	Temperature in situ in gas mixing system #2; Pot #4	degrees Celsius	temp
pH_S2P5	pH-Total scale in gas mixing system #2; Pot #5	unitless	pH
T_S2P5	Temperature in situ in gas mixing system #2; Pot #5	degrees Celsius	temp
pH_S2P6	pH-Total scale in gas mixing system #2; Pot #6	unitless	pH
T_S2P6	Temperature in situ in gas mixing system #2; Pot #6	degrees Celsius	temp
pH_S3P7	pH-Total scale in gas mixing system #3; Pot #7	unitless	pH
T_S3P7	Temperature in situ in gas mixing system #3; Pot #7	degrees Celsius	temp
pH_S3P8	pH-Total scale in gas mixing system #3; Pot #8	unitless	pH
T_S3P8	Temperature in situ in gas mixing system #3; Pot #8	degrees Celsius	temp
pH_S3P9	pH-Total scale in gas mixing system #3; Pot #9	unitless	pH
T_S3P9	Temperature in situ in gas mixing system #3; Pot #9	degrees Celsius	temp
pH_3P10	pH-Total scale in gas mixing system #3; Pot #10	unitless	pH
T_S3P10	Temperature in situ in gas mixing system #3; Pot #10	degrees Celsius	temp
ISO_DateTime_Local	Date/Time (Local) ISO formatted (YYYY-MM-DDTHH:MM:SS)	unitless	ISO_DateTime_Local