http://lod.bco-dmo.org/id/dataset/472813
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2013-12-09
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Trichodesmium species in the North Atlantic from R/V Oceanus OC469-01 in the NW Atlantic, Woods Hole to Barbados from October 2010 (Trichodesmium project)
2014-04-08
publication
2014-04-08
revision
BCO-DMO Linked Data URI
2014-04-08
creation
http://lod.bco-dmo.org/id/dataset/472813
Dennis J. McGillicuddy
Woods Hole Oceanographic Institution
principalInvestigator
Cabell S. Davis
Woods Hole Oceanographic Institution
principalInvestigator
Sonya T. Dyhrman
Woods Hole Oceanographic Institution
principalInvestigator
Dr John Waterbury
Woods Hole Oceanographic Institution
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: McGillicuddy, D. J., Dyhrman, S. T., Davis, C. S., Waterbury, J. (2014) Trichodesmium species in the North Atlantic from R/V Oceanus OC469-01 in the NW Atlantic, Woods Hole to Barbados from October 2010 (Trichodesmium project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2014-04-08) Version Date 2014-04-08 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/472813 [access date]
Trichodesmium species in the North Atlantic from OC469, 2010 Dataset Description: <p>At each station, CTD casts measured temperature, salinity and PAR. Water samples collected at depths of 700, 500, 300, 200, 100, 80, 60, 40, 20 m, and the surface were filtered and preserved for nutrient analysis. In the upper 80 m, water samples were gravity filtered and preserved for microscopic enumeration of both Trichodesmium colonies and free trichomes. &nbsp;For each nitrogen fixation sample, the number of puffs, number of rafts, and amount of carbon was measured. Individual carbon per colony values were estimated by regressing carbon content with number of puffs and number of rafts. &nbsp; Bowtie carbon content per colony was assumed the same as puff carbon per colony.</p>
<p>The sampling program included daily stations with associated nitrogen fixation experiments beginning at approximately 10:00 a.m. local time. Trichodesmium colonies for on-board incubation experiments and genetic assays were picked individually with pipettes from water collected at the surface (5-15 m) and at depth (20-70 m). Surface and deep samples were collected by pumping water through a 150 µm sieve on OC469 and by MOCNESS with 150 µm nets on OC471. Additional surface samples were taken by net tow (150 µm) on both cruises. After initial collection, the largest and most intact individual colonies were isolated using eyedroppers and transferred to filtered seawater for incubation experiments in order to assemble sufficient biomass to produce measurable rates. Nitrogen fixation was measured by acetylene reduction assay (Capone and Montoya, 2001).</p>
<p><strong>Related References:</strong></p>
<p>Capone, D. G. and J. P. Montoya, 2001: Nitrogen fixation and denitrification. Marine&nbsp;Microbiology, J. H. Paul, Ed., Academic Press, Methods in Microbiology, Vol. 30, 501-515, doi: <a href="http://dx.doi.org/10.1016/S0580-9517(01)30060-0" target="_blank">http://dx.doi.org/10.1016/S0580-9517(01)30060-0</a>, URL: <a href="http://www.sciencedirect.com/science/article/pii/S0580951701300600" target="_blank">http://www.sciencedirect.com/science/article/pii/S0580951701300600</a>.</p>
<p><strong>Related Dataset:</strong></p>
<p>Tricho N Atlantic - OC471:&nbsp;http://www.bco-dmo.org/dataset/505567</p> Methods and Sampling:
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0925284 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0925284
completed
Dennis J. McGillicuddy
Woods Hole Oceanographic Institution
508-289-2683
266 Woods Hole Road Bigelow 209B, Mail Stop 11
Woods Hole
MA
02543
USA
dmcgillicuddy@whoi.edu
pointOfContact
Cabell S. Davis
Woods Hole Oceanographic Institution
508-289-2333
Redfield 2-20, MS-33
Woods Hole
MA
02543
USA
cdavis@whoi.edu
pointOfContact
Sonya T. Dyhrman
Woods Hole Oceanographic Institution
845-365-8465
102E Geoscience 61 Route 9W, PO Box 1000
Palisades
NY
10964
USA
dyhrman@ldeo.columbia.edu
pointOfContact
Dr John Waterbury
Woods Hole Oceanographic Institution
508 289 2742
Dept. of Biology Watson Building 107, Biology, MS#51
Woods Hole
MA
02543
USA
jwaterbury@whoi.edu
pointOfContact
asNeeded
Dataset Version: 2014-04-08
Unknown
station
cast
date
time
year
month
day
yrday_gmt
inst_Tricho
cast2
date_cast2
time_cast2
lat_cast2
lon_cast2
lat
lon
depth_n
press
num_BTL
NH4
NO3_NO2
DIN
TDN
DON
TDP
PO4
DOP
Si
PO4_P_flag
O2_ml_L
sal
sal2
density
density2
temp
temp2
cond
cond2
fluor
trans
alt
par
spar
turbidity
O2_v
AP_activity
chl_a
Trich_AP_mix
Trich_AP_puff
Trich_AP_raft
light_insitu
light_incub
temp_incub
Nfix_colony_1
Nfix_colony_1_sig
Nfix_colony_2
Nfix_colony_2_sig
Nfix_colony_3
Nfix_colony_3_sig
Nfix_colony_avg
Nfix_colony_avg_sd
num_rafts_1
num_rafts_2
num_rafts_3
num_puffs_1
num_puffs_2
num_puffs_3
Nfix_C_1
Nfix_C_1_sig
Nfix_C_2
Nfix_C_2_sig
Nfix_C_3
Nfix_C_3_sig
Nfix_C_avg
Nfix_C_sd
expt_code
Nfix_exp_colony_1
Nfix_exp_colony_2
Nfix_exp_colony_3
Nfix_exp_colony_avg
Nfix_exp_colony_sd
Nfix_exp_C_1
Nfix_exp_C_2
Nfix_exp_C_2_sig
Nfix_exp_C_3
Nfix_exp_C_avg
Nfix_exp_C_sd
num_rafts_exp_1
num_rafts_exp_2
num_rafts_exp_3
num_puffs_exp_1
num_puffs_exp_2
num_puffs_exp_3
CNMolarC_N_id
C_exp_colony
N_exp_colony
C_to_N_exp_colony
num_colony_puff
num_colony_raft
num_colong_bow
num_colony_totl
filament_free
vol_filt_colony_filamt
ISODateTime_UTC
CTD
LI-COR Biospherical PAR
PAR sensor
Plankton Net
Pressure Sensor
SBE-43 DO
Seapoint Turbidity
Transmissometer
ECO AFL/FL
theme
None, User defined
station
cast
date
time of day
year
month of year
day of month
day of year and decimal time (time zone GMT)
instrument
latitude
longitude
depth nominal
water pressure
No BCO-DMO term
Ammonium
nitrate plus nitrite
Total Dissolved Nitrogen
Dissolved Organic Nitrogen
Total Dissolved Phosphorus
reactive phosphorus (PO4)
Dissolved Organic Phosphorus
Silicon
dissolved Oxygen
salinity
salinity calculated from the CTD secondary sensors
density
water temperature at measurement depth
temperature (temp2) from secondary sensor
conductivity
conductivity from the CTD secondary sensor
fluorescence
transmission
altitude
PAR
SPAR
turbidity
Oxygen in volts
chlorophyll a
incubation temperature
standard deviation
count
Carbon to Nitrogen ratio (C:N)
volume of water filtered
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
CTD - profiler
LI-COR Biospherical PAR Sensor
Photosynthetically Available Radiation Sensor
Plankton Net
Pressure Sensor
Pump
Sea-Bird SBE 43 Dissolved Oxygen Sensor
Seapoint Turbidity Meter
Transmissometer
Wet Labs ECO-AFL/FL Fluorometer
instrument
BCO-DMO Standard Instruments
OC469-01
service
Deployment Activity
NW Atlantic: Woods Hole to Barbados
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Ocean Carbon and Biogeochemistry
http://us-ocb.org/
Ocean Carbon and Biogeochemistry
The Ocean Carbon and Biogeochemistry (OCB) program focuses on the ocean's role as a component of the global Earth system, bringing together research in geochemistry, ocean physics, and ecology that inform on and advance our understanding of ocean biogeochemistry. The overall program goals are to promote, plan, and coordinate collaborative, multidisciplinary research opportunities within the U.S. research community and with international partners. Important OCB-related activities currently include: the Ocean Carbon and Climate Change (OCCC) and the North American Carbon Program (NACP); U.S. contributions to IMBER, SOLAS, CARBOOCEAN; and numerous U.S. single-investigator and medium-size research projects funded by U.S. federal agencies including NASA, NOAA, and NSF.
The scientific mission of OCB is to study the evolving role of the ocean in the global carbon cycle, in the face of environmental variability and change through studies of marine biogeochemical cycles and associated ecosystems.
The overarching OCB science themes include improved understanding and prediction of: 1) oceanic uptake and release of atmospheric CO2 and other greenhouse gases and 2) environmental sensitivities of biogeochemical cycles, marine ecosystems, and interactions between the two.
The OCB Research Priorities (updated January 2012) include: ocean acidification; terrestrial/coastal carbon fluxes and exchanges; climate sensitivities of and change in ecosystem structure and associated impacts on biogeochemical cycles; mesopelagic ecological and biogeochemical interactions; benthic-pelagic feedbacks on biogeochemical cycles; ocean carbon uptake and storage; and expanding low-oxygen conditions in the coastal and open oceans.
OCB
largerWorkCitation
program
Quantification of Trichodesmium spp. vertical and horizontal abundance patterns and nitrogen fixation in the western North Atlantic
https://osprey.bco-dmo.org/project/2104
Quantification of Trichodesmium spp. vertical and horizontal abundance patterns and nitrogen fixation in the western North Atlantic
<p>The diazotroph Trichodesmium spp. constitutes a major pathway of nitrogen flow into marine planktonic ecosystems, but estimates of its impact on global nitrogen budgets vary widely. Sampling is made difficult by the fragility of the organism with the consequence that Trichodesmium spp. are difficult to manipulate in both field and laboratory experiments. Optical methods that sample the organism nondestructively are thus appealing. A recent transatlantic survey using the Video Plankton Recorder (VPR) revealed unexpectedly high abundance of Trichodesmium spp. at depth, suggesting the vertical distribution of the organism within the euphotic zone may be more uniform than previously thought (Davis, C.S. and McGillicuddy, D.J., 2006. Transatlantic Abundance of the N2-Fixing Colonial Cyanobacterium Trichodesmium. Science, 312: 1517-1520). Application of a simple bio-optical model of productivity to the observed profile of abundance suggests the depth-integrated nitrogen fixation rate could be three to five times higher than that based on the canonical profile of exponential decrease in abundance with depth. However, the observations described in Davis and McGillicuddy (2006) come from a latitude range where Trichodesmium spp. are not especially abundant. This raises a key question: is there a similar vertical distribution in waters further to the south, where Trichodesmium spp. are an order of magnitude more abundant overall? If so, are the deep populations actively fixing nitrogen? If so, the implications for the global nitrogen budget would be substantial.</p>
<p>To answer these questions, we propose two cruises to survey the waters of the southern Sargasso Sea and tropical Atlantic, where Trichodesmium spp. are commonly found in high abundance. Along-track VPR measurements will document the abundance and distribution of the organism on the scale of meters to thousands of kilometers. Standard hydrographic station work will provide for comparison of VPR-based estimates with microscope counts, as well as some additional in situ optical methods. A combination of nifH gene expression assays and direct determinations of N2-fixation rates will be made to assess whether or not the deep populations are actively fixing nitrogen. These observations will be synthesized in the context of an eddy-resolving numerical model. This will permit investigation of the mechanisms controlling the vertical and horizontal distribution and abundance of Trichodesmium spp. at multiple scales, including the enigmatic association of relative maxima in abundance with anticyclonic eddies (also described in Davis and McGillicuddy, 2006). Moreover, integration of these observations into the numerical model will facilitate revised estimates of nitrogen fixation by Trichodesmium spp. in the North Atlantic. The intellectual merit of this effort stems from our interdisciplinary approach (physics and biology), advanced observational techniques (optical imaging, molecular methods) and integrated analysis in the context of state-of-the-art coupled physical-biogeochemical models.</p>
Trichodesmium
largerWorkCitation
project
eng; USA
oceans
NW Atlantic: Woods Hole to Barbados
2014-04-08
0
BCO-DMO catalogue of parameters from Trichodesmium species in the North Atlantic from R/V Oceanus OC469-01 in the NW Atlantic, Woods Hole to Barbados from October 2010 (Trichodesmium project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/505694.rdf
Name: station
Units: unitless
Description: <p>station number</p>
http://lod.bco-dmo.org/id/dataset-parameter/505695.rdf
Name: cast
Units: unitless
Description: <p>CTD cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/505696.rdf
Name: date
Units: yyyymmdd
Description: <p>CTD date</p>
http://lod.bco-dmo.org/id/dataset-parameter/505697.rdf
Name: time
Units: hhmm
Description: <p>CTD time</p>
http://lod.bco-dmo.org/id/dataset-parameter/505698.rdf
Name: year
Units: unitless
Description: <p>year</p>
http://lod.bco-dmo.org/id/dataset-parameter/505699.rdf
Name: month
Units: unitless
Description: <p>month</p>
http://lod.bco-dmo.org/id/dataset-parameter/505700.rdf
Name: day
Units: unitless
Description: <p>day</p>
http://lod.bco-dmo.org/id/dataset-parameter/505701.rdf
Name: yrday_gmt
Units: unitless
Description: <p>GMT day and decimal time; as 326.5 for the 326th day of the year or November 22 at 1200 hours (noon)</p>
http://lod.bco-dmo.org/id/dataset-parameter/505702.rdf
Name: inst_Tricho
Units: unitless
Description: <p>Trichodesmium sampling instrument (pump or net)</p>
http://lod.bco-dmo.org/id/dataset-parameter/505703.rdf
Name: cast2
Units: unitless
Description: <p>pump cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/505704.rdf
Name: date_cast2
Units: yyyymmdd
Description: <p>pump date</p>
http://lod.bco-dmo.org/id/dataset-parameter/505705.rdf
Name: time_cast2
Units: hhmm
Description: <p>pump time</p>
http://lod.bco-dmo.org/id/dataset-parameter/505706.rdf
Name: lat_cast2
Units: decimal degrees
Description: <p>pump station latitude; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/505707.rdf
Name: lon_cast2
Units: decimal degrees
Description: <p>pump station longitude; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/505708.rdf
Name: lat
Units: decimal degrees
Description: <p>CTD latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/505709.rdf
Name: lon
Units: decimal degrees
Description: <p>CTD longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/505710.rdf
Name: depth_n
Units: meters
Description: <p>nominal depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/505711.rdf
Name: press
Units: decibars
Description: <p>pressure</p>
http://lod.bco-dmo.org/id/dataset-parameter/505712.rdf
Name: num_BTL
Units: unitless
Description: <p># of .BTL values used to compute average CTD pressure temperature salinity etc reported for that depth entry in the bottle file. [.BTL files are created by SeaBird CTD processing with average values for the time each bottle was tripped.]</p>
http://lod.bco-dmo.org/id/dataset-parameter/505713.rdf
Name: NH4
Units: microMolar
Description: <p>ammonium concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505714.rdf
Name: NO3_NO2
Units: microMolar
Description: <p>nitrate and nitrite concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505715.rdf
Name: DIN
Units: microMolar
Description: <p>dissolved inorganic nitrogen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505716.rdf
Name: TDN
Units: microMolar
Description: <p>total dissolved nitrogen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505717.rdf
Name: DON
Units: microMolar
Description: <p>dissolved organic nitrogen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505718.rdf
Name: TDP
Units: microMolar
Description: <p>total dissolved phosphorus concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505719.rdf
Name: PO4
Units: microMolar
Description: <p>Phosphate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505720.rdf
Name: DOP
Units: microMolar
Description: <p>dissolved organic phosphorous concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505721.rdf
Name: Si
Units: microMolar
Description: <p>silicate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505722.rdf
Name: PO4_P_flag
Units: unitless
Description: <p>PO4-P low level dissolved inorganic phosphate (LLDIP) assay marker: 1 = LLDIP was used (typically in upper ocean samples); 0 = the standard method was used (typically deeper samples where DIP is higher). See nutrient detection limit note (pdf) in Processing section.</p>
http://lod.bco-dmo.org/id/dataset-parameter/505723.rdf
Name: O2_ml_L
Units: milliliters/liter
Description: <p>dissolved oxygen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/505724.rdf
Name: sal
Units: practical salinity units
Description: <p>salinity from primary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505725.rdf
Name: sal2
Units: practical salinity units
Description: <p>salinity from secondary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505726.rdf
Name: density
Units: kilograms/meter^3
Description: <p>sigma-theta density from primary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505727.rdf
Name: density2
Units: kilograms/meter^3
Description: <p>sigma-theta density from secondary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505728.rdf
Name: temp
Units: degrees Celsius
Description: <p>temperature from primary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505729.rdf
Name: temp2
Units: degrees Celsius
Description: <p>temperature from secondary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505730.rdf
Name: cond
Units: Siemens/meter
Description: <p>conductivity from primary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505731.rdf
Name: cond2
Units: Siemens/meter
Description: <p>conductivity from secondary sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/505732.rdf
Name: fluor
Units: milligrams/m^3
Description: <p>fluorescence</p>
http://lod.bco-dmo.org/id/dataset-parameter/505733.rdf
Name: trans
Units: percent
Description: <p>beam transmission</p>
http://lod.bco-dmo.org/id/dataset-parameter/505734.rdf
Name: alt
Units: meters
Description: <p>altitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/505735.rdf
Name: par
Units: microEinsteins/*cm*^2/second
Description: <p>PAR/Irradiance</p>
http://lod.bco-dmo.org/id/dataset-parameter/505736.rdf
Name: spar
Units: microEinsteins/*cm*^2/second
Description: <p>SPAR/Surface Irradiance</p>
http://lod.bco-dmo.org/id/dataset-parameter/505737.rdf
Name: turbidity
Units: Nephelometric Turbidity Units (NTU)
Description: <p>turbidity</p>
http://lod.bco-dmo.org/id/dataset-parameter/505738.rdf
Name: O2_v
Units: volts
Description: <p>oxygen voltage</p>
http://lod.bco-dmo.org/id/dataset-parameter/505739.rdf
Name: AP_activity
Units: nanomoles Phosphate/hour/liter
Description: <p>Water column alkaline phosphatase activity</p>
http://lod.bco-dmo.org/id/dataset-parameter/505740.rdf
Name: chl_a
Units: micrograms/liter
Description: <p>chlorophyll</p>
http://lod.bco-dmo.org/id/dataset-parameter/505741.rdf
Name: Trich_AP_mix
Units: nanomoles Phosphorus/hour/colony
Description: <p>Trichodesmium AP Activity - Mixed</p>
http://lod.bco-dmo.org/id/dataset-parameter/505742.rdf
Name: Trich_AP_puff
Units: nanomoles Phosphorus/hour/colony
Description: <p>Trichodesmium AP Activity - Puffs</p>
http://lod.bco-dmo.org/id/dataset-parameter/505743.rdf
Name: Trich_AP_raft
Units: nanomoles Phosphorus/hour/colony
Description: <p>Trichodesmium AP Activity - Rafts</p>
http://lod.bco-dmo.org/id/dataset-parameter/505744.rdf
Name: light_insitu
Units: microEinsteins
Description: <p>in situ light level</p>
http://lod.bco-dmo.org/id/dataset-parameter/505745.rdf
Name: light_incub
Units: microEinsteins
Description: <p>incubation light level</p>
http://lod.bco-dmo.org/id/dataset-parameter/505746.rdf
Name: temp_incub
Units: degrees Celsius
Description: <p>incubation temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/505747.rdf
Name: Nfix_colony_1
Units: nanomoles Nitrogen/hour/colony
Description: <p>N fixation rate - colony 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505748.rdf
Name: Nfix_colony_1_sig
Units: unitless
Description: <p>significance code: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505749.rdf
Name: Nfix_colony_2
Units: nanomoles Nitrogen/hour/colony
Description: <p>N fixation rate - colony 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505750.rdf
Name: Nfix_colony_2_sig
Units: unitless
Description: <p>significance code: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505751.rdf
Name: Nfix_colony_3
Units: nanomoles Nitrogen/hour/colony
Description: <p>N fixation rate - colony 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505752.rdf
Name: Nfix_colony_3_sig
Units: unitless
Description: <p>significance code: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505753.rdf
Name: Nfix_colony_avg
Units: nanomoles Nitrogen/hour/colony
Description: <p>average colony nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505754.rdf
Name: Nfix_colony_avg_sd
Units: nanomoles Nitrogen/hour/colony
Description: <p>standard deviation of colony average nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505755.rdf
Name: num_rafts_1
Units: rafts
Description: <p>number rafts - replicate 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505756.rdf
Name: num_rafts_2
Units: rafts
Description: <p>number rafts - replicate 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505757.rdf
Name: num_rafts_3
Units: rafts
Description: <p>number rafts - replicate 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505758.rdf
Name: num_puffs_1
Units: puffs
Description: <p>number puffs - replicate 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505759.rdf
Name: num_puffs_2
Units: puffs
Description: <p>number puffs - replicate 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505760.rdf
Name: num_puffs_3
Units: puffs
Description: <p>number puffs - replicate 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505761.rdf
Name: Nfix_C_1
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>nitrogen fixation rate - replicate 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505762.rdf
Name: Nfix_C_1_sig
Units: unitless
Description: <p>significance code: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505763.rdf
Name: Nfix_C_2
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>nitrogen fixation rate - replicate 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505764.rdf
Name: Nfix_C_2_sig
Units: unitless
Description: <p>significance code: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505765.rdf
Name: Nfix_C_3
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>nitrogen fixation rate - replicate 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505766.rdf
Name: Nfix_C_3_sig
Units: unitless
Description: <p>significance code: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505767.rdf
Name: Nfix_C_avg
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>average nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505768.rdf
Name: Nfix_C_sd
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>standard deviation of nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505769.rdf
Name: expt_code
Units: unitless
Description: <p>experimental treatment code. See notes (pdf) in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505770.rdf
Name: Nfix_exp_colony_1
Units: nanomoles Nitrogen/hour/colony
Description: <p>experimental nitrogen fixation rate - colony 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505771.rdf
Name: Nfix_exp_colony_2
Units: nanomoles Nitrogen/hour/colony
Description: <p>experimental nitrogen fixation rate - colony 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505772.rdf
Name: Nfix_exp_colony_3
Units: nanomoles Nitrogen/hour/colony
Description: <p>experimental nitrogen fixation rate - colony 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505773.rdf
Name: Nfix_exp_colony_avg
Units: nanomoles Nitrogen/hour/colony
Description: <p>average colony experimental nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505774.rdf
Name: Nfix_exp_colony_sd
Units: nanomoles Nitrogen/hour/colony
Description: <p>standard deviation of colony experimental nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505775.rdf
Name: Nfix_exp_C_1
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>experimental nitrogen fixation rate - replicate 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505776.rdf
Name: Nfix_exp_C_2
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>experimental nitrogen fixation rate - replicate 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505777.rdf
Name: Nfix_exp_C_2_sig
Units: unitless
Description: <p>significance note: see codes in Processing section</p>
http://lod.bco-dmo.org/id/dataset-parameter/505778.rdf
Name: Nfix_exp_C_3
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>experimental nitrogen fixation rate - replicate 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505779.rdf
Name: Nfix_exp_C_avg
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>average experimental nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505780.rdf
Name: Nfix_exp_C_sd
Units: micromoles Nitrogen/hour/mole Carbon
Description: <p>standard deviation of experimental nitrogen fixation rate</p>
http://lod.bco-dmo.org/id/dataset-parameter/505781.rdf
Name: num_rafts_exp_1
Units: rafts
Description: <p>number of rafts in experimental treatment - replicate 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505782.rdf
Name: num_rafts_exp_2
Units: rafts
Description: <p>number of rafts in experimental treatment - replicate 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505783.rdf
Name: num_rafts_exp_3
Units: rafts
Description: <p>number of rafts in experimental treatment - replicate 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505784.rdf
Name: num_puffs_exp_1
Units: puffs
Description: <p>number of puffs in experimental treatment - replicate 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/505785.rdf
Name: num_puffs_exp_2
Units: puffs
Description: <p>number of puffs in experimental treatment - replicate 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/505786.rdf
Name: num_puffs_exp_3
Units: puffs
Description: <p>number of puffs in experimental treatment - replicate 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/505787.rdf
Name: CNMolarC_N_id
Units: unitless
Description: <p>molar carbon to nitrogen ratio identification codes???</p>
http://lod.bco-dmo.org/id/dataset-parameter/505788.rdf
Name: C_exp_colony
Units: micromoles Carbon
Description: <p>carbon content per colony in experimental treatment</p>
http://lod.bco-dmo.org/id/dataset-parameter/505789.rdf
Name: N_exp_colony
Units: micromoles Nitrogen
Description: <p>nitrogen content per colony in experimental treatment</p>
http://lod.bco-dmo.org/id/dataset-parameter/505790.rdf
Name: C_to_N_exp_colony
Units: unitless
Description: <p>carbon to nitrogen ratio per colony in experimental treatment</p>
http://lod.bco-dmo.org/id/dataset-parameter/505791.rdf
Name: num_colony_puff
Units: colonies
Description: <p>number of puff colony forms</p>
http://lod.bco-dmo.org/id/dataset-parameter/505792.rdf
Name: num_colony_raft
Units: colonies
Description: <p>number of raft colony forms</p>
http://lod.bco-dmo.org/id/dataset-parameter/505793.rdf
Name: num_colong_bow
Units: colonies
Description: <p>number of bowtie colony forms</p>
http://lod.bco-dmo.org/id/dataset-parameter/505794.rdf
Name: num_colony_totl
Units: colonies
Description: <p>number of total colony forms</p>
http://lod.bco-dmo.org/id/dataset-parameter/505795.rdf
Name: filament_free
Units: filaments
Description: <p>number of free filaments</p>
http://lod.bco-dmo.org/id/dataset-parameter/505796.rdf
Name: vol_filt_colony_filamt
Units: liters
Description: <p>volume filtered for colonies and filaments</p>
http://lod.bco-dmo.org/id/dataset-parameter/506242.rdf
Name: ISODateTime_UTC
Units: YYYY-MM-DDTHH:MM:SS[.xx]Z
Description: <p>Date/Time (UTC) ISO formatted. E.g., 2009-08-30T14:05:00[.xx]Z (UTC time)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
194157
https://datadocs.bco-dmo.org/file/rggpGzACDkVgKR/tricho_oc469_8apr2014.csv
tricho_oc469_8apr2014.csv
Primary data file for dataset ID 472813
download
https://osprey.bco-dmo.org/dataset/472813/data/download
download
onLine
dataset
<p>See <a href="http://data.bco-dmo.org/Tricho_NAtl/Nutrients Detection Limits_OC469_OC471.pdf" target="_blank">Nutrients Detection Limit (DL) and Quality Limit (QL): OC469 and OC471</a> (pdf)</p>
<p>See <a href="http://data.bco-dmo.org/Tricho_NAtl/Experimental Treatment Codes_OC469.pdf" target="_blank">Experimental Treatment Codes (OC469)</a> (pdf)</p>
<p>See <a href="http://data.bco-dmo.org/Tricho_NAtl/CN Molar CN ID codes_OC469.pdf" target="_blank">OC469 CN Molar CN ID codes</a> (pdf)</p>
<p>See <a href="http://data.bco-dmo.org/Tricho_NAtl/README_OC469_OC471_in_situ_data.pdf" target="_blank">Readme file</a> (pdf)</p>
<p>See <a href="http://data.bco-dmo.org/Tricho_NAtl/original_data_corrections_v2.pdf" target="_blank">data corrections file</a> (pdf)</p>
<p><strong>Significance code</strong>&nbsp;descriptions:</p>
<p>1 - Values that were not statistically significant (e.g. slopes were not statistically greater than zero as determined using Prism software) - these cells were formatted bold, italic in the original data file.</p>
<p>2 - Values that were not statistically significant (e.g. slopes were not statistically greater than zero as determined using Prism software) - these cells were formatted bold, italic in the original data file. DEAD? (oc471, st15, 6 points)</p>
<p>3 - Monica Ruoco: not considered. They might be almost dead (oc469, st13)</p>
<p>nd - no notes</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
CTD
CTD
PI Supplied Instrument Name: CTD PI Supplied Instrument Description:SeaBird 911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
At each station, CTD casts measured temperature, salinity and PAR. Water samples collected at depths of 700, 500, 300, 200, 100, 80, 60, 40, 20 m, and the surface were filtered and preserved for nutrient analysis. Instrument Name: CTD - profiler Instrument Short Name: Instrument Description: The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.
This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/130/
LI-COR Biospherical PAR
LI-COR Biospherical PAR
PI Supplied Instrument Name: LI-COR Biospherical PAR Instrument Name: LI-COR Biospherical PAR Sensor Instrument Short Name:LI-COR Biospherical PAR Instrument Description: The LI-COR Biospherical PAR Sensor is used to measure Photosynthetically Available Radiation (PAR) in the water column. This instrument designation is used when specific make and model are not known. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0074/
PAR sensor
PAR sensor
PI Supplied Instrument Name: PAR sensor PI Supplied Instrument Description:Biospherical underwater PAR (1000m depth limit) with reference Surface PAR Instrument Name: Photosynthetically Available Radiation Sensor Instrument Short Name:PAR sensor Instrument Description: A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/122/
Plankton Net
Plankton Net
PI Supplied Instrument Name: Plankton Net PI Supplied Instrument Description:150 micron mesh on a 1-meter ring net Instrument Name: Plankton Net Instrument Short Name:Plankton Net Instrument Description: A Plankton Net is a generic term for a sampling net that is used to collect plankton. It is used only when detailed instrument documentation is not available. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/22/
Pressure Sensor
Pressure Sensor
PI Supplied Instrument Name: Pressure Sensor PI Supplied Instrument Description:Digiquartz Instrument Name: Pressure Sensor Instrument Short Name:Pressure Sensor Instrument Description: A pressure sensor is a device used to measure absolute, differential, or gauge pressures. It is used only when detailed instrument documentation is not available.
PI Supplied Instrument Name: PI Supplied Instrument Description:On OC-469-01, seawater from surface and deep samples were pumped through a 150 micron sieve. Instrument Name: Pump Instrument Short Name: Instrument Description: A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
SBE-43 DO
SBE-43 DO
PI Supplied Instrument Name: SBE-43 DO Instrument Name: Sea-Bird SBE 43 Dissolved Oxygen Sensor Instrument Short Name:SBE-43 DO Instrument Description: The Sea-Bird SBE 43 dissolved oxygen sensor is a redesign of the Clark polarographic membrane type of dissolved oxygen sensors. more information from Sea-Bird Electronics Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0036/
Seapoint Turbidity
Seapoint Turbidity
PI Supplied Instrument Name: Seapoint Turbidity Instrument Name: Seapoint Turbidity Meter Instrument Short Name:Seapoint Turbidity Instrument Description: The Seapoint Turbidity Meter detects light scattered by particles suspended in water, generating an output voltage proportional to turbidity or suspended solids. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0104/
Transmissometer
Transmissometer
PI Supplied Instrument Name: Transmissometer PI Supplied Instrument Description:Wet Labs C*Star transmissometer (660nm wavelength) Instrument Name: Transmissometer Instrument Short Name:Transmissometer Instrument Description: A transmissometer measures the beam attenuation coefficient of the lightsource over the instrument's path-length. This instrument designation is used when specific manufacturer, make and model are not known. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/124/
ECO AFL/FL
ECO AFL/FL
PI Supplied Instrument Name: ECO AFL/FL Instrument Name: Wet Labs ECO-AFL/FL Fluorometer Instrument Short Name:ECO AFL/FL Instrument Description: The Environmental Characterization Optics (ECO) series of single channel fluorometers delivers both high resolution and wide ranges across the entire line of parameters using 14 bit digital processing. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the instrument and the optional anti-biofouling technology delivers truly long term field measurements.
more information from Wet Labs Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0172/
Cruise: OC469-01
OC469-01
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC469-01
Dennis J. McGillicuddy
Woods Hole Oceanographic Institution
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel