Collaborative Research: Impact of Solar Radiation and Nutrients on Biogeochemical Cycling of Dimethylsulfoniopropionate (DMSP) and Dimethylsulfide (DMS) in the Ross Sea, Antarctica (2004-2005)
Metadata:
- Identification_Information:
- Citation:
- Citation_Information:
- Originator:
- DISL: Kiene Lab
- Originator:
- SUNY Environmental Science and Forestry: Kieber Lab
- Publication_Date:
- Unpublished material
- Title:
- Collaborative Research: Impact of Solar Radiation and Nutrients on Biogeochemical Cycling of Dimethylsulfoniopropionate (DMSP) and Dimethylsulfide (DMS) in the Ross Sea, Antarctica (2004-2005)
- Online_Linkage:
- http://www.esf.edu/antarctica/data.htm
- Description:
- Abstract:
- This dataset contains transect data from two research cruises to the Ross Sea, Antarctica, aboard the RV Nathaniel B. Palmer (NBP) in December 2004 to January 2005 (NBP04-09) and in October to November 2005 (NBP05-08). Water samples were collected from the ship's underway pumping system in the aft laboratory, which has an intake at 4 m depth, and from CTD casts with Niskin bottle sampling (up to 737 m). Samples were analyzed for concentration and biological turnover rate of sulfur compounds, particularly dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP).
- Purpose:
- To improve our understanding of the biogeochemical dynamics of dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP), and dimethyl sulfoxide (DMSO) in the Ross Sea, Antarctica, and to evaluate the impact of ultraviolet radiation and dissolved nutrients on organosulfur cycling in these waters.
- Time_Period_of_Content:
- Time_Period_Information:
- Range_of_Dates/Times:
- Beginning_Date:
- 20041220
- Ending_Date:
- 20051130
- Currentness_Reference:
- ground condition
- Status:
- Progress:
- Complete
- Maintenance_and_Update_Frequency:
- None Planned
- Spatial_Domain:
- Bounding_Coordinates:
- West_Bounding_Coordinate:
- -179.49
- East_Bounding_Coordinate:
- -166.97
- North_Bounding_Coordinate:
- -49.01
- South_Bounding_Coordinate:
- -77.64
- Keywords:
- Theme:
- Theme_Keyword_Thesaurus:
- None
- Theme_Keyword:
- DMS
- Theme_Keyword:
- dimethylsulfide
- Theme_Keyword:
- DMSOd
- Theme_Keyword:
- dissolved dimethylsulfoxide
- Theme_Keyword:
- DMSPt
- Theme_Keyword:
- total dimethylsulfoniopropionate
- Theme_Keyword:
- DMSPd
- Theme_Keyword:
- dissolved dimethylsulfoniopropionate
- Theme_Keyword:
- DMSPp
- Theme_Keyword:
- particulate dimethylsulfoniopropionate
- Theme_Keyword:
- chl a
- Theme_Keyword:
- chlorophyll a
- Theme_Keyword:
- Phaeocystis antarctica
- Theme_Keyword:
- organic sulfur cycle
- Theme_Keyword:
- ocean chemistry
- Theme_Keyword:
- sulfur compounds
- Theme_Keyword:
- carbon dioxide
- Theme_Keyword:
- atmospheric chemistry
- Theme_Keyword:
- climate change
- Theme_Keyword:
- algal-derived trace gases
- Theme_Keyword:
- water quality
- Theme:
- Theme_Keyword_Thesaurus:
- ISO 19115 Topic Category
- Theme_Keyword:
- oceans
- Theme_Keyword:
- biota
- Theme_Keyword:
- climatologyMeteorologyAtmosphere
- Place:
- Place_Keyword_Thesaurus:
- None
- Place_Keyword:
- Antarctica
- Place_Keyword:
- Ross Sea
- Place_Keyword:
- New Zealand
- Place_Keyword:
- Southern Ocean
- Place_Keyword:
- Polar
- Place_Keyword:
- South Pole
- Place_Keyword:
- DISL
- Place_Keyword:
- Dauphin Island Sea Lab
- Access_Constraints:
- Permission to access these data must be given by Dr. Ron Kiene.
- Use_Constraints:
- Acknowledgment of the Dauphin Island Sea Lab: Kiene Lab, State University of New York Environmental Science and Forestry, Woods Hole Oceanographic Institution, the Office of Polar Programs, and the National Science Foundation is required in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of these data. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of these data, based on the description of appropriate/inappropriate uses described in the metadata document. The Kiene Lab makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. The Kiene Lab cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. These data are not legal documents and are not to be used as such.
- Point_of_Contact:
- Contact_Information:
- Contact_Person_Primary:
- Contact_Person:
- Ron Kiene
- Contact_Organization:
- DISL: Kiene Lab
- Contact_Position:
- Principal Investigator
- Contact_Address:
- Address_Type:
- mailing and physical
- Address:
- 101 Bienville Blvd.
- City:
- Dauphin Island
- State_or_Province:
- Al
- Postal_Code:
- 36528
- Country:
- USA
- Contact_Voice_Telephone:
- 251-861-2141 ext. 2269 or 7525
- Contact_Electronic_Mail_Address:
- rkiene@disl.org
- Hours_of_Service:
- 8-5:00 CST
- Contact_Instructions:
- Please email Ron Kiene for further information.
- Native_Data_Set_Environment:
- Microsoft Excel
Back To Index
- Data_Quality_Information:
- Attribute_Accuracy:
- Attribute_Accuracy_Report:
- Post cruise, we discovered that the acidification procedure used to measure DMSP may result in loss of DMSP in samples containing colonial Phaeocystis sp. Acidification causes a very rapid loss of DMSP and some conversion into DMS. This was not noticed on the cruise and no corrections could be made. The amount of loss for these samples is not known. Because we found this only when colonial Phaeocystis was present and since during NBP-0409 (January 2005) the phytoplankton population was dominated by single celled Phaeocystis and diatoms, it is likely not as severe a problem as it was during NBP-0508 (November cruise).
- Logical_Consistency_Report:
- N/A
- Completeness_Report:
- Data were obtained during two research cruises to the Ross Sea aboard the RV Nathaniel B. Palmer in December 2004 to January 2005 (NBP04-09) and in October to November 2005 (NBP05-08).
- Lineage:
- Process_Step:
- Process_Description:
- Two types of data were collected during the research cruises.
A) Along-track transect samples were collected from the ship's underway pumping system, with an intake at 4 m depth, and additional CTD casts with Niskin bottle sampling were conducted approximately once per day at a depth of 4 m during NBP05-08.
B) Vertical profile samples were collected by CTD cast with Niskin bottle sampling up to a depth of 737 m.
- Process_Date:
- 20051130
Back To Index
- Entity_and_Attribute_Information:
- Detailed_Description:
- Entity_Type:
- Entity_Type_Label:
- NBP Transect Data DMS-DMSP-DMSO-physical
- Entity_Type_Definition:
- Transect sample data collected from the ship's underway pumping system, a flow-through fluorometer (fluorescence data), or CTD Niskin to 4 m depth. The data are organized into two MS Excel spreadsheets, one for each cruise.
- Entity_Type_Definition_Source:
- DISL: Kiene Lab
- Attribute:
- Attribute_Label:
- Sample #
- Attribute_Definition:
- Sample number. All transect samples for NBP 04-09, and samples without trailing letters in NBP 05-08, are from the underway pump system with intake at 4 m. Samples with letters in NBP 05-08 (highlighted in light blue) are as follows: B= bucket sample. C= CTD sample 4m.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 1
- Range_Domain_Maximum:
- 45
- Attribute:
- Attribute_Label:
- Local date & time
- Attribute_Definition:
- Date and time at the sampling location
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 12/20/2004 7:22
- Range_Domain_Maximum:
- 08.11.05 19:26
- Attribute_Units_of_Measure:
- NBP 04-09: month/day/year HH:MM (24-hour clock)
NBP 05-08: day.month.year HH:MM (24-hour clock)
- Attribute:
- Attribute_Label:
- Julian Day
- Attribute_Definition:
- Day of year.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 300
- Range_Domain_Maximum:
- 362
- Attribute:
- Attribute_Label:
- time (GMT)
- Attribute_Definition:
- Time of sampling in Greenwich Mean Time.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 00:00
- Range_Domain_Maximum:
- 23:59
- Attribute:
- Attribute_Label:
- Decimal Lat
- Attribute_Definition:
- Latitude in decimal degrees
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -76.510
- Range_Domain_Maximum:
- -49.014
- Attribute_Units_of_Measure:
- decimal degrees
- Attribute:
- Attribute_Label:
- Decimal Lon
- Attribute_Definition:
- Longitude in decimal degrees
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -179.200
- Range_Domain_Maximum:
- 179.818
- Attribute_Units_of_Measure:
- decimal degrees
- Attribute:
- Attribute_Label:
- Salinity
- Attribute_Definition:
- Salinity
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 33.504
- Range_Domain_Maximum:
- 34.598
- Attribute:
- Attribute_Label:
- Ext. SW Temp
- Attribute_Definition:
- Water temperature
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -1.869
- Range_Domain_Maximum:
- 8.680
- Attribute_Units_of_Measure:
- Celsius
- Attribute:
- Attribute_Label:
- Fluor V
- Attribute_Definition:
- Fluorescence. Data were collected with a flow through fluorometer (Turner Designs).
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 2.920
- Range_Domain_Maximum:
- 63.200
- Attribute_Units_of_Measure:
- voltage
- Attribute:
- Attribute_Label:
- Beam C
- Attribute_Definition:
- Beam attenuation. Calculated as Beam C = -1/x * ln(Trans %) where x is the path length (25 cm according to NBP Data report).
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.001
- Range_Domain_Maximum:
- 0.012
- Attribute_Units_of_Measure:
- percent per centimeter
- Attribute:
- Attribute_Label:
- pCO2
- Attribute_Definition:
- Partial pressure of carbon dioxide.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 245
- Range_Domain_Maximum:
- 427.9
- Attribute_Units_of_Measure:
- parts per million
- Attribute:
- Attribute_Label:
- DMS [nM]
- Attribute_Definition:
- Concentration of dimethylsulfide. Samples were collected from the ship underway system by attaching a 0.2 um PolyCap Nylong filter capsule to the pump outflow and filling a 60 ml teflon bottle with minimal gas exchange. These filtered samples were analyzed by purge and trap gas chromatography within 1 h of collection.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.383
- Range_Domain_Maximum:
- 30.244
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- Stdev DMS
- Attribute_Definition:
- Standard deviation for concentration of dimethylsulfide, as calculated for cruise NBP 05-08.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.009
- Range_Domain_Maximum:
- 0.882
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMS err
- Attribute_Definition:
- Standard error for concentration of dimethylsulfide, as calculated for cruise NBP 04-09.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.043
- Range_Domain_Maximum:
- 1.390
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSPt or DMSP-tot [nM]
- Attribute_Definition:
- Total concentration of dimethylsulfoniopropionate.
Ten ml of unfiltered seawater was collected directly from the pump outflow into 15 ml storage tube containing 50 ul of 50% H2SO4. Two replicate storage tubes per sample. After >12 h to allow DMS to oxidize, a 1.5 ml sub-sample from storage tube was pipetted into 14 ml serum vial and treated with 1 ml of 5 N NaOH. Sample was purged entirely into cryotrop for quantification of DMS by FPD. Corrections were made for Air-NaOH blanks which were low or absent during the cruise.
Note: the acidification procedure may have resulted in loss of DMSP in samples containing colonial Phaeocystis sp.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 4.040
- Range_Domain_Maximum:
- 143.470
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- Stdev DMSPt [nM]
- Attribute_Definition:
- Standard deviation for concentration of dimethylsulfoniopropionate, as calculated for cruise NBP 05-08.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.147
- Range_Domain_Maximum:
- 8.586
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSP err
- Attribute_Definition:
- Standard error of concentration for dimethylsulfoniopropionate, as calculated for cruise NBP 04-09.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 9.021
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSPd [nM]
- Attribute_Definition:
- Concentration of dissolved dimethylsulfoniopropionate.
Samples for DMSP were collected by Niskin bottle on CTD casts to 4 m and subjected to the gentle, small volume drip filtration procedure described in Kiene & Slezak (2006). Briefly, unfiltered water samples were collected from Niskins directly into Plastic Gelman magnetic filter tower. About 50 ml of water was allowed to fill the tower, but only the first 3.5 ml of filtrate was collected into a 15 ml centrifuge tube that already contained 50 ul of 50% H2SO4. Filter towers were rinsed with Q water and thorougly dried between each use. Analysis was as for DMSP-total only that 3 ml of sample were analyzed. For more details, see: Kiene, R.P., Slezak, D., 2006. Low dissolved DMSP concentrations in seawater revealed by small volume gravity filtration and dialysis sampling. Limnol. Oceanog. Methods 4, 80-95.
Occasionally, samples from the underway pump system were also collected by the small volume drip filtration procedure for comparison to the Niskin collections.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.382
- Range_Domain_Maximum:
- 4.188
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- Stdev DMSPd
- Attribute_Definition:
- Standard deviation for concentration of dissolved dimethylsulfoniopropionate.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.021
- Range_Domain_Maximum:
- 0.501
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSOd [nM]
- Attribute_Definition:
- Concentration of dimethyl sulfoxide.
Samples were collected from the ship underway system by attaching a 0.2 um PolyCap Nylong filter capsule to the pump outflow and filling a 60 ml teflon bottle. The samples were then frozen for later analysis. After thawing the samples were sparged to remove any pre-existing DMS, and then a sub-sample of 1 ml was treated with 0.3 ml of Acros TiCl3 (30%) and the vial immediately capped with a teflon faced septum. After capping with a new teflon faced septum, vials were heated at 50 deg C for 60 minutes. After cooling to room temperature, the samples were analyzed by sparging the entire sample into the cryotrap. Samples were corrected for TiCl3 blanks. Q water on the NBP was an inappropriate blank because it had some DMSO in it.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 53.618
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- Stdev DMSOd
- Attribute_Definition:
- Standard deviation for concentration of dimethyl sulfoxide, as calculated for cruise NBP 05-08.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.007
- Range_Domain_Maximum:
- 0.555
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSO err
- Attribute_Definition:
- Standard error for concentration of dimethyl sulfoxide, as calculated for cruise NBP 04-09.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- This column is blank.
- Attribute:
- Attribute_Label:
- DMS/DMSPt
- Attribute_Definition:
- Concentration of dimethylsulfide divided by concentration of total dimethylsulfoniopropionate.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.031
- Range_Domain_Maximum:
- 0.380
- Attribute:
- Attribute_Label:
- notes
- Attribute_Definition:
- Miscellaneous notes about the sample or station.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- Additional information in any form.
- Detailed_Description:
- Entity_Type:
- Entity_Type_Label:
- NBP Depth Profiles DMS-DMSP-DMSO concentrations and rates
- Entity_Type_Definition:
- Summary data for depth profiles of DMS, DMSP, and DMSO concentrations and fluxes, collected from CTD casts with Niskin bottles to depths up to 737 m. The data are organized into two MS Excel spreadsheets, one for each cruise.
- Entity_Type_Definition_Source:
- DISL: Kiene Lab
- Attribute:
- Attribute_Label:
- Station Information
- Attribute_Definition:
- Information includes station name, time of cast in GMT, and cast name.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- Information includes station name, time of cast in GMT, and cast name.
- Attribute:
- Attribute_Label:
- Local date & time
- Attribute_Definition:
- Date and time at the sampling location
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 12/20/2004 7:22
- Range_Domain_Maximum:
- 08.11.05 19:26
- Attribute_Units_of_Measure:
- NBP 04-09: month/day/year HH:MM (24-hour clock) NBP 05-08: day.month.year HH:MM (24-hour clock)
- Attribute:
- Attribute_Label:
- Decimal Lat
- Attribute_Definition:
- Latitude in decimal degrees
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -76.510
- Range_Domain_Maximum:
- -49.014
- Attribute_Units_of_Measure:
- decimal degrees
- Attribute:
- Attribute_Label:
- Decimal Lon
- Attribute_Definition:
- Longitude in decimal degrees
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -179.200
- Range_Domain_Maximum:
- 179.818
- Attribute_Units_of_Measure:
- decimal degrees
- Attribute:
- Attribute_Label:
- Depth (m)
- Attribute_Definition:
- Depth below water surface where the sample was collected.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 1
- Range_Domain_Maximum:
- 737
- Attribute_Units_of_Measure:
- meter
- Attribute:
- Attribute_Label:
- Plot depth
- Attribute_Definition:
- Negative depth of sample collection. For making quick depth column figures in Excel with the surface at the top.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -737
- Range_Domain_Maximum:
- -1
- Attribute_Units_of_Measure:
- meter
- Attribute:
- Attribute_Label:
- DMS [nM]
- Attribute_Definition:
- Concentration of dimethylsulfide.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -0.04
- Range_Domain_Maximum:
- 70.425
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSPt [nM]
- Attribute_Definition:
- Total concentration of dimethylsulfoniopropionate. Ten ml of unfiltered seawater was collected directly from Niskin into 15 ml storage tube containing 50 ul of 50% H2SO4. Two replicate storage tubes per depth, both from the same Niskin. After >12 h to allow DMS to oxidize, a 1.5 ml sub-sample from storage tube was pipetted into 14 ml serum vial and treated with 1 ml of 5 N NaOH. Sample was purged entirely into cryotrop for quantification of DMS by FPD. Corrections were made for Air-NaOH blanks which were low or absent during the cruise. Note: the acidification procedure may have resulted in loss of DMSP in samples containing colonial Phaeocystis sp.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 86.059
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSPd [nM]
- Attribute_Definition:
- Concentration of dissolved dimethylsulfoniopropionate. Unfiltered water samples were collected from Niskins directly into Plastic Gelman magnetic filter tower. About 50 ml of water was allowed to fill the tower, but only the first 3.5 ml of filtrate was collected into a 15 ml centrifuge tube that already contained 50 ul of 50% H2SO4. Filter towers were rinsed with Q water and thorougly dried between each use. Analysis was as for DMSP-total except that 3 ml of sample were analyzed. For more details, see: Kiene, R.P., Slezak, D., 2006. Low dissolved DMSP concentrations in seawater revealed by small volume gravity filtration and dialysis sampling. Limnol. Oceanog. Methods 4, 80-95.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.08
- Range_Domain_Maximum:
- 5.415
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSPp (total - dissolved) [nM]
- Attribute_Definition:
- Particulate dimethylsulfoniopropionate was calculated as the difference between DMSP-total and DMSPd. Error was propagated.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.57
- Range_Domain_Maximum:
- 85.376
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- DMSOd [nM]
- Attribute_Definition:
- Concentration of dissolved dimethyl sulfoxide. Whole water was drip filtered through muffled GF/F into 15 ml centri tubes (< 8 ml collected). The samples were then frozen for later analysis. After thawing the samples were sparged to remove any pre-existing DMS, and then a sub-sample of 1 ml was treated with 0.3 ml of Acros TiCl3 (30%) and the vial immediately capped with a teflon faced septum. After capping with a new teflon faced septum, vials were heated at 50 deg C for 60 minutes. After cooling to room temperature, the samples were analyzed by sparging the entire sample into the cryotrap. Samples were corrected for TiCl3 blanks. Q water on the NBP was an inappropriate blank because it had some DMSO in it.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.042
- Range_Domain_Maximum:
- 60.596
- Attribute_Units_of_Measure:
- nanomol
- Attribute:
- Attribute_Label:
- Chl a (ug/L)
- Attribute_Definition:
- Chlorophyll a. Water samples were filtered onto either GF/F or AE glass fiber filters and extracted in 90% acetone for 24 h at -20 deg C. Fluorescence was determined based on the acidification method.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.0006419
- Range_Domain_Maximum:
- 8.46505625
- Attribute_Units_of_Measure:
- micrograms per liter
- Attribute:
- Attribute_Label:
- Leucine Incorporation (nM/day)
- Attribute_Definition:
- Bacterial biomass production (Leucine Incorporation) - the uptake rate of 3H-Leucine is reported for samples treated with 20 nM Leucine and incubated for 1-4 h in the dark. Leucine is incorporated into bacterial proteins. For more details see: Smith, D.C., Azam, F., 1992. A simple, economical method for measuring bacterial protein synthesis rates in sea water using 3H-Leucine. Marine Microbial Food Webs 6, 107-114.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 1.4347
- Attribute_Units_of_Measure:
- nanomol per day
- Attribute:
- Attribute_Label:
- DMS-bio rate const (per day)
- Attribute_Definition:
- Biological turnover rate of dimethylsulfide. 35S-tracer methods were used to obtain the consumption rate constant, k (the fraction of DMS consumed per unit time). Tracer incubations lasted 4 - 8 h and were conducted in the dark at the in situ temperature.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.0299
- Range_Domain_Maximum:
- 6.165
- Attribute_Units_of_Measure:
- per day
- Attribute:
- Attribute_Label:
- DMS bio rate (nM DMS/day)
- Attribute_Definition:
- Biological turnover rate of dimethylsulfide. 35S-tracer methods were used to obtain the consumption rate constant, k (the fraction of DMS consumed per unit time). Tracer incubations lasted 4 - 8 h and were conducted in the dark at the in situ temperature.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.008
- Range_Domain_Maximum:
- 13.089
- Attribute_Units_of_Measure:
- nanomol per day
- Attribute:
- Attribute_Label:
- DMSPd rate const (per day)
- Attribute_Definition:
- Biological turnover rate of dissolved dimethylsulfoniopropionate. 35S-tracer methods were used to obtain the consumption rate constant, k (the fraction of DMSPd consumed per unit time). Tracer incubations lasted 4 - 8 h and were conducted in the dark at the in situ temperature.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.0487
- Range_Domain_Maximum:
- 14.178
- Attribute_Units_of_Measure:
- per day
- Attribute:
- Attribute_Label:
- DMSPd turnover rate (nM/day)
- Attribute_Definition:
- Biological turnover rate of dissolved dimethylsulfoniopropionate. 35S-tracer methods were used to obtain the consumption rate constant, k (the fraction of DMSPd consumed per unit time). Tracer incubations lasted 4 - 8 h and were conducted in the dark at the in situ temperature.
- Attribute_Definition_Source:
- DISL: Kiene Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 16.37
- Attribute_Units_of_Measure:
- nanomol per day
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- Metadata_Reference_Information:
- Metadata_Date:
- 20131210
- Metadata_Contact:
- Contact_Information:
- Contact_Organization_Primary:
- Contact_Organization:
- Dauphin Island Sea Lab
- Contact_Position:
- Data Management Specialist
- Contact_Address:
- Address_Type:
- mailing and physical
- Address:
- 101 Bienville Blvd.
- City:
- Dauphin Island
- State_or_Province:
- Al
- Postal_Code:
- 36528
- Country:
- USA
- Contact_Voice_Telephone:
- 251-861-2141
- Contact_Electronic_Mail_Address:
- metadata@disl.org
- Hours_of_Service:
- 8-5:00 CST
- Contact_Instructions:
- Please email the metadata specialist for further information.
- Metadata_Standard_Name:
- FGDC Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version:
- FGDC-STD-001.1-1999
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