Data for "Temporal and vertical variability in phytoplankton primary production and microbial community respiration in the North Pacific Subtropical Gyre"

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