Data for "Temporal and vertical variability in phytoplankton primary production and microbial community respiration in the North Pacific Subtropical Gyre"
Authors/Creators
- 1. University of Hawaii at Manoa
-
2.
University of Montana
Description
This ALOHA_GOP&R.xslx data set provides measurements of biological rates conducted between April 2015 and July 2020 at different depths in the euphotic zone at or in the vicinity of Station ALOHA (22° 45' N, 158° W), the long-term sampling site of the Hawaii Ocean Time-series (HOT) program, within the North Pacific Subtropical Gyre.
The file ALOHA_GOP&R.xslx contains incubation-based measurements of gross oxygen production and community respiration that were measured in the same incubation bottles by applying the 18O-water method and tracking net changes in oxygen to argon ratios during dawn to dusk in situ incubations, following Ferrón et al. (2016). The samples were measured using membrane inlet mass spectrometry. Rates were measured at 6 depths within the euphotic zone: 5, 25, 45, 75, 100, 125 m, except in a few occasions in which there were no measurements made at 125 m.
Data description
|
Variable |
Description |
Units |
|
Date |
Date of sampling and start of incubation (UTC -10 hours) |
|
|
Cruise ID |
Cruise identification |
# |
|
Latitude |
Latitude |
degrees N |
|
Longitude |
Longitude |
degrees E |
| Stn ALOHA | Whether the data are from Station ALOHA (yes/no) | |
| IncT |
Incubation time |
hours |
|
Depth |
Nominal depth of sampling and incubation |
meters |
| GOP | Gross oxygen production | mmol O2 m-3 d-1 |
| CR | Estimate of community respiration | mmol O2 m-3 d-1 |
|
Flag GOP |
Flag identification for gross oxygen production (good=1,questionable=2) |
# |
|
Flag CR |
Flag identification for community respiration (good=1,questionable=2) |
# |
The Light-dark_ALOHA_rates.xlsx file contains metabolic rates measured by the ligth-dark oxygen method between June 2005 and June 2007 at different depths in the euphotic zone at Station ALOHA (22° 45' N, 158° W). Rates of net community production, communnity respiration, and gross oxygen production were measured at 6 depths within the euphotic zone (5, 25, 45, 75, 100, 125 m) in dawn to dawn incubations, following Williams et al. (2004).
Data description
|
Variable |
Description |
Units |
|
HOT |
HOT cruise number |
# |
|
Date |
Date of sampling and start of incubation (UTC -10) |
|
|
Depth |
Nominal depth of sampling and incubation |
meters |
| GOP | Gross oxygen production, average of 8 replicates | mmol O2 m-3 d-1 |
| GOP SE | Gross oxygen production standard error | mmol O2 m-3 d-1 |
| CR |
Dark community respiration, average of 8 replicates |
mmol O2 m-3 d-1 |
|
CR SE |
Dark community respiration standard error |
meters |
| NCP | Net community production,average of 8 replicates | mmol O2 m-3 d-1 |
| NCP SE | Net community production standard error | mmol O2 m-3 d-1 |
Files
Additional details
References
- Ferrón, S., D. A. del Valle, K. M. Björkman, P. D. Quay, M. J. Church, and D. M. Karl. 2016. Application of membrane inlet mass spectrometry to measure aquatic gross primary production by the 18O in vitro method. Limnol. Oceanogr. Methods 14: 610–622. doi:10.1002/lom3.10116
- Williams, P. J. le B., Morris, P. J, Karl, D. M. 2004. Net community production and metabolic balance at teh oligotrophic ocean site, Station ALOHA. Deep Sea Research Part I: Oceanographic Research Papers, 51: 1563-1578.