| accessions_id: |
0259305 | archive
|
| Title: |
Depth, salinity, temperature, pH, total alkalinity, and dissolved inorganic carbon collected from CTD profiler equipped with a pH sensor and Niskin bottles, using a spectrophotometer, open-cell potentiometric titration, a Licor-700 CO2 detector, and CO2 coulometer at the University of Washington (NCEI Accession 0259305) |
| Abstract: |
We characterized the pH environment currently experienced by Euphausia pacifica eggs and larvae at 2 stations in the northern end of Hood Canal in Puget Sound, Washington, USA (47.61, -122.94 and 47.66, -122.86; Puget Sound Regional Synthesis Model [PRISM] stations P14 and P15). The southwest station, P14, is deeper (180 m) than the northeastern station, P15 (130 m). Samples were collected during the day and night on 9−10 April and 15−16 June 2012. This design was chosen to sample during the spawning season of E. pacifica (approximately February to July) in an area where low pH waters occur (Feely et al. 2010). We collected physical and chemical data using a CTD profiler equipped with a pH sensor (SBE 18, Sea-Bird Electronics) and Niskin bottles, which were used to collect water at 6 depths for spectrophotometric pH, total dissolved inorganic carbon (DIC), and total alkalinity (TA) analyses. The CTD’s pH sensor was not accurate, so it was only used to determine the shape of the pH profile relative to discrete measurements. Spectro photometric pH was measured shipboard immediately after water sampling (Ocean Optics USB 2000+ Fiber Optic Spectrometer; m-cresol purple dye from Sigma Aldrich). TA was measured by open-cell potentiometric titration (according to SOP 3b in Dickson et al. 2007), and DIC was measured by acidification and quantification either using a Licor-700 CO2 detector, or a CO2 coulometer (UIC model CM5015). All chemistry samples from the field and experiments were analyzed according to Dickson et al. (2007) and Riebesell et al. (2010). We calculated full carbonate system parameters using CO2sys version 2.1 (Lewis & Wallace 2012) with K1 and K2 constants from Lueker et al. (2000), KHSO4 constant from Dickson (1990), [B]T from Uppström (1974), and the total pH scale. |
| Date received: |
20220825 |
| Start date: |
20120409 |
| End date: |
20120616 |
| Seanames: |
Coastal Waters of Southeast Alaska and British Columbia, Puget Sound
|
| West boundary: |
-122.94 |
| East boundary: |
-122.86 |
| North boundary: |
47.66 |
| South boundary: |
47.61 |
| Observation types: |
discrete sample, in situ, laboratory analyses, physical, profile
|
| Instrument types: |
carbon dioxide (CO2) gas analyzer, coulometer for DIC measurement, CTD, Niskin bottle, spectrophotometer, titrator
|
| Datatypes: |
ALKALINITY - TOTAL, DEPTH - SENSOR, DISSOLVED INORGANIC CARBON (DIC), pCO2, pH, SALINITY, TEMPERATURE - WATER
|
| Submitter: |
Perez, Danielle |
| Submitting institution: |
US DOC; NOAA; NMFS; Northwest Fisheries Science Center |
| Collecting institutions: |
The University of British Columbia |
| Contributing projects: |
OCADS |
| Platforms: |
|
| Number of observations: |
|
| Supplementary information: |
This dataset is associated with the following EXPOCODE(s): , and cruise ID(s): . This data package (Submission ID: BF9C3KH2Y) was acquired by NCEI from the Scientific Data Integration System (SDIS) at the NOAA Pacific Marine Environmental Laboratory (PMEL) in accordance with the archival submission agreement between NCEI and PMEL. |
| Availability date: |
|
| Metadata version: |
14 |
| Keydate: |
2022-08-26 19:39:05+00 |
| Editdate: |
2022-08-30 20:17:32+00 |