Notes on Niskin bottle sampling and use: depth of sample, operator, observations, type of experiments run on the sample, from RV/Endeavor EN556 and EN584, 2015 and 2016 (Patterns of activities project)
Project
| Contributors | Affiliation | Role |
|---|---|---|
| Arnosti, Carol | University of North Carolina at Chapel Hill (UNC-Chapel Hill) | Principal Investigator |
| Copley, Nancy | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
This dataset includes notes on each Niskin bottle sample collected on EN556 and EN584 and what the water was used for.
For mesocosm (large volume) incubation experiments (referred to as “LV” incubations), a 30L Niskin bottle rosette was used to collect the water. Separate casts were used to collect surface water, bottom water, and water from the depth at which oxygen showed a minimum, according to the CTD.
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 cruise_id, split statoni and cast into separte columns
| File |
|---|
niskin_bottle_cast_notes.csv (Comma Separated Values (.csv), 11.58 KB) MD5:f1cab2f269dba19981657ec2e0c8fef5 Primary data file for dataset ID 717427 |
Relationship Description: Use this Niskin Bottle and cast list EN584 to link specific casts and bottles to each experiment.
| Parameter | Description | Units |
| cruise_id | cruise identifier | unitless |
| station | station identifier | unitless |
| cast | cast number | unitless |
| date | cast date formatted as yyyy-mm-dd | unitless |
| lat | latitude; north is positive | decimal degrees |
| lon | longitude; east is positive | decimal degrees |
| Bottle_1 | Notes pertaining to bottle 1 | unitless |
| Bottle_2 | Notes pertaining to bottle 2 | unitless |
| Bottle_3 | Notes pertaining to bottle 3 | unitless |
| Bottle_4 | Notes pertaining to bottle 4 | unitless |
| Bottle_5 | Notes pertaining to bottle 5 | unitless |
| Bottle_6 | Notes pertaining to bottle 6 | unitless |
| Bottle_7 | Notes pertaining to bottle 7 | unitless |
| Bottle_8 | Notes pertaining to bottle 8 | unitless |
| Bottle_9 | Notes pertaining to bottle 9 | unitless |
| Bottle_10 | Notes pertaining to bottle 10 | unitless |
| Bottle_11 | Notes pertaining to bottle 11 | unitless |
| Bottle_12 | Notes pertaining to bottle 12 | unitless |
| comment_station | comments pertaining to the station | unitless |
| Dataset-specific Instrument Name | 30 liter Niskin bottles |
| Generic Instrument Name | Niskin bottle |
| Dataset-specific Description | Used to collect water for large volume mesocosm experiments |
| Generic Instrument Description | A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. |
EN556
| Website | |
| Platform | R/V Endeavor |
| Start Date | 2015-04-27 |
| End Date | 2015-05-02 |
| Description | Project: Latitudinal and Depth-Related Contrasts in Enzymatic Capabilities of Pelagic Microbial Communities.
Cruise track obtained from rvdata.us control-point navigation (http://www.rvdata.us/catalog/EN556) |
EN584
| Website | |
| Platform | R/V Endeavor |
| Start Date | 2016-06-29 |
| End Date | 2016-07-13 |
| Description | Latitudinal and Depth-related Contrasts in Enzymatic Capabilities of Pelagic Microbial Communities.
Cruise track obtained from rvdata.us control-point navigation, (http://www.rvdata.us/catalog/EN584) |
Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean? (Patterns of activities)
NSF Award Abstract:
Heterotrophic microbial communities are key players in the marine carbon cycle, transforming and respiring organic carbon, regenerating nutrients, and acting as the final filter in sediments through which organic matter passes before long-term burial. Microbially-driven carbon cycling in the ocean profoundly affects the global carbon cycle, but key factors determining rates and locations of organic matter remineralization are unclear. In this study, researchers from the University of North Carolina at Chapel Hill will investigate the ability of pelagic microbial communities to initiate the remineralization of polysaccharides and proteins, which together constitute a major pool of organic matter in the ocean. Results from this study will be predictive on a large scale regarding the nature of the microbial response to organic matter input, and will provide a mechanistic framework for interpreting organic matter reactivity in the ocean.
Broader Impacts: This study will provide scientific training for undergraduate and graduate students from underrepresented groups. The project will also involve German colleagues, thus strengthening international scientific collaboration.
| Funding Source | Award |
|---|---|
| NSF Division of Ocean Sciences (NSF OCE) |
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