http://lod.bco-dmo.org/id/dataset/3459
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
2011-04-04
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
GoMX PIT from R/V Oceanus cruise OC468-02 in the Gulf of Mexico in 2010 (GoMX - DHOS Marine Snow and Sedimentation project)
2011-04-11
publication
2011-04-11
revision
BCO-DMO Linked Data URI
2011-04-11
creation
http://lod.bco-dmo.org/id/dataset/3459
Uta Passow
University of California-Santa Barbara
principalInvestigator
Vernon L. Asper
University of Southern Mississippi
principalInvestigator
Arne R. Diercks
University of Southern Mississippi
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: Passow, U., Asper, V. L., Diercks, A. R. (2011) GoMX PIT from R/V Oceanus cruise OC468-02 in the Gulf of Mexico in 2010 (GoMX - DHOS Marine Snow and Sedimentation project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 11 April 2011) Version Date 2011-04-11 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3459 [access date]
GoMX_PIT_Oceanus_8-2010 Dataset Description: <p>Results from floating particle interceptor traps (PIT) deployed August/ September for about 36 hours each at 8 stations in the Gulf of Mexico at 150 or 180 m<br />
<br />
<strong>Note: These data are restricted. Contact PI for access information.</strong></p> Methods and Sampling: <p><u><strong>GoMX Aug/ Sep 2010: PIT traps</strong></u>&nbsp;<br />
<em>Methods</em><br />
Eight (PIT 1 &amp; 2, 7, &amp; 8) to twelve (PIT 3, 4, 5, 6) columns were attached to a cross (2-3 in each of 4 directions) attached 30 m above the weight. Above the column a bungee cord connection that buffered the wave action connected to two large benthos floats and a bead of a series of small floats with a buoy at the surface. The traps, which were suspended at 150 m depth (PIT 1 to 6) or 185 m (PIT &gt; 6) and drifted freely, were deployed at the beginning of each main station and recovered at the end. Deployment time varied around 36 hours, except PIT 7 where it was 24 h. Each trap column was 62.5 cm high, with baffles in the 9 top cm and a diameter of 6.96 cm (area 37.94 cm<sup>2</sup>).<br />
<br />
Gels in jars fitting tightly into the columns were added at the bottom of two columns to investigate size distribution and type of sinking particles. Prior to deployment the cup with the softened gel (softened by adding a layer of 50 ‰ FSW ≥ 2 days before deployment) was fitted into the bottom of the column and overlaid first with a layer of salt-enriched water and then with FSW. The other 6 to 10 columns were filled with FSW which was under laid with 300 mL of salt-enriched water using a tube connected to a sawed off pipette.<br />
<br />
Upon retrieval, water was drained above the gel cups, the cups removed and stored in the fridge. The upper 2/3 of the water in the other columns was also drained after particles wee allowed to settle and the lower third of all columns mixed and used for subsequent analysis of POC, PON, Isotopes. DNA content and oil signature is analyzed for selected samples only.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1045330 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1045330
completed
Uta Passow
University of California-Santa Barbara
709-864-8010
Ocean Sciences Centre, Memorial University Marine Lab Road, Logy Bay
St. John's
Newfoundland
A1C 5S7
Canada
uta.passow@mun.ca
pointOfContact
Vernon L. Asper
University of Southern Mississippi
228-688-3178
BLDF. 1103, ROOM 201 Inst. Marine Sciences, Univ. S. Mississippi, Stennis Space Center
Stennis
MS
39529
USA
vernon.asper@usm.edu
pointOfContact
Arne R. Diercks
University of Southern Mississippi
662-915-2301
Marine Science P.O. Box 05182
Hattiesburg
MS
39406
USA
Arne.Diercks@usm.edu
pointOfContact
asNeeded
Dataset Version: 11 April 2011
Unknown
Station_Id
date
time
lat_deploy
lon_deploy
lat_recover
lon_recover
Aggregates_0point06mm
Aggregates_0point12mm
Aggregates_0point24mm
Aggregates_gt_0point32mm
zooplankton
fecal_pellets_total
fecal_pellets_lt_0point1mm
fecal_pellets_0point15mm
phytoplankton
detritus
u_p_o_s
sand_minerals
DW
Sediment Trap - Particle Interceptor
theme
None, User defined
No BCO-DMO term
date
time of day
latitude begin
longitude begin
latitude at end time of measurement
longitude at end time of measurement
dry_wgt_globec
featureType
BCO-DMO Standard Parameters
Sediment Trap - Particle Interceptor
instrument
BCO-DMO Standard Instruments
OC468-02
service
Deployment Activity
Gulf of Mexico
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.
Gulf of Mexico - Deepwater Horizon Oil Spill
https://osprey.bco-dmo.org/program/2028
Gulf of Mexico - Deepwater Horizon Oil Spill
Grants for Rapid Response Research (RAPID)
The RAPID funding mechanism is used for proposals having a severe urgency with regard to availability of, or access to data, facilities or specialized equipment, including quick-response research on natural or anthropogenic disasters and similar unanticipated events.
GOM - Broader Impacts
The need to understand the impact of this largest oil spill to date on ecosystems and biochemical cycling is self evident. The consequences of the disaster and accompanying clean up measures (e.g. the distribution of dispersants) need to be evaluated to guide further mediating measures and to develop and improve responses to similar disasters in the future. Would it be advantageous if such oil aggregates sink, or should it rather remain suspended? Possibly measures can be developed to enhance sinking or suspension (e.g. addition of ballast minerals) once we understand their current formation and fate. Understanding the particle dynamics following the input of large amounts of oil and dispersants into the water is a prerequisite to develop response strategies for now and in the future.
GoMX - DHOS
largerWorkCitation
program
Deepwater Horizon Oil Spill, Marine Snow and Sedimentation
https://osprey.bco-dmo.org/project/2143
Deepwater Horizon Oil Spill, Marine Snow and Sedimentation
<p>The accident at the BP oil well in the Gulf of Mexico in April 2010 resulted in an oil spill of unprecedented magnitude and consequences. Preliminary data collected in the beginning of May at the site of the accident show very high concentrations of marine snow in the water, especially in close proximity to the oil/ dispersants. The goal of this project is to evaluate the role these large marine snow-like particles play in the ecosystem during the following weeks to months. Neither the formation mechanisms nor the aggregate composition are known. These investigators will monitor the distribution of marine snow, characterize these particles and measure sedimentation rates to try to understand the role of snow formation and sedimentation in the ecosystem response.</p>
<p>This project examined the effects of the <i><b>Deepwater Horizon oil spill</b></i> in the Gulf of Mexico. During a field investigation on the <i>RV Oceanus</i> we began investigating how the <i><b>oil and dispersants impact the carbon cycle</b></i> and, specifically, aggregation and sedimentation of particles. First results indicate signals which were consistent with the presence of oil at around 1000 m depth at many stations. Oil-like material was also observed in the upper layers of many sediment cores. Marine snow concentrations did not seem exceptional anymore, although they were high at stations near the spill site. We deployed a time series sediment trap in the area of the accident, which will continue to sample over the next year, allowing us to collect continuous data on sedimentation rates in the area.</p>
<p>Intellectual Merit<br />
The characteristics and the potential fate of these marine snow like aggregates, which may potentially sink or float, be grazed, degraded or remain suspended in the water for a long period of time, is unknown. This accident is an opportunity to evaluate and expand our knowledge on reactions of marine ecosystems to such large disturbances in general and more specifically to study the role of aggregation and sedimentation in the process. Marine snow formation and its sedimentation are an essential component of elemental cycling. It has been postulated that sedimentation of material "cleans" the water column from particles. Marine snow is also thought to be hotspots of microbial activity. Potentially this oily marine snow could not only represent hotspots of activity for oil degrading organisms, but may also function to isolate oil into small volumes. However, rapid sedimentation of such oil aggregates may lead to anoxia at depths. Scientifically we do not understand the possible interactions between marine snow, marine particles, oil and dispersant. </p>
<p>Tasks performed during the investigate the formation of marine snow and sedimentation patterns in the aftermath of the oil spill:<br />
1. Deploy floating, VERTEX type sediment traps (8 to 12 columns per trap array) at 8 stations for about 36 hours each at 150 or 180 m depth. Two columns filled with polyacrymyl gels for microcosmical investigation of sinking particle types and sizes<br />
2. Deploy 1 time series trap at 28 42.360N; 88 25.325W (about 2.5 nmiles SW of the spill site) at about 1400 m from August 2010 for about 1 year.<br />
3. Determine marine snow distribution in the water column<br />
4. Experiments on the formation mechanisms of marine snow</p>
GoMX - DHOS Marine Snow and Sedimentation
largerWorkCitation
project
eng; USA
oceans
Gulf of Mexico
-90.5595
-87.2167
27.3752
28.86731
2010-08-24
2010-09-14
Northern Gulf of Mexico
0
BCO-DMO catalogue of parameters from GoMX PIT from R/V Oceanus cruise OC468-02 in the Gulf of Mexico in 2010 (GoMX - DHOS Marine Snow and Sedimentation 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/24119.rdf
Name: Station_Id
Units: text
Description: <p>Trap Station Id</p>
http://lod.bco-dmo.org/id/dataset-parameter/24120.rdf
Name: date
Units: yyyymmdd
Description: <p>Trap deployment date</p>
http://lod.bco-dmo.org/id/dataset-parameter/24121.rdf
Name: time
Units: hhmm
Description: <p>Trap deployment time</p>
http://lod.bco-dmo.org/id/dataset-parameter/24122.rdf
Name: lat_deploy
Units: decimal degrees
Description: <p>Trap deployment latitude (South is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/24123.rdf
Name: lon_deploy
Units: decimal degrees
Description: <p>Trap deployment longitude (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/24124.rdf
Name: lat_recover
Units: decimal degrees
Description: <p>Trap recovery latitude (South is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/24125.rdf
Name: lon_recover
Units: decimal degrees
Description: <p>Trap recovery longitude (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/24126.rdf
Name: Aggregates_0point06mm
Units: # per m^2 per day
Description: <p>Sedimentation rate – Aggregates 0.06mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/24127.rdf
Name: Aggregates_0point12mm
Units: # per m^2 per day
Description: <p>Sedimentation rate - Aggregates 0.12mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/24128.rdf
Name: Aggregates_0point24mm
Units: # per m^2 per day
Description: <p>Sedimentation rate - Aggregates 0.24mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/24129.rdf
Name: Aggregates_gt_0point32mm
Units: # per m^2 per day
Description: <p>Sedimentation rate - Aggregates .gt. 0.32mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/24130.rdf
Name: zooplankton
Units: # per m^2 per day
Description: <p>Sedimentation rate – Zooplankton</p>
http://lod.bco-dmo.org/id/dataset-parameter/24131.rdf
Name: fecal_pellets_total
Units: # per m^2 per day
Description: <p>Sedimentation rate - Fecal pellets total</p>
http://lod.bco-dmo.org/id/dataset-parameter/24132.rdf
Name: fecal_pellets_lt_0point1mm
Units: # per m^2 per day
Description: <p>Sedimentation rate - Fecal pellets .lt. 0.1mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/24133.rdf
Name: fecal_pellets_0point15mm
Units: # per m^2 per day
Description: <p>Sedimentation rate - Fecal pellets 0.15mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/24134.rdf
Name: phytoplankton
Units: # per m^2 per day
Description: <p>Sedimentation rate - Phytoplankton</p>
http://lod.bco-dmo.org/id/dataset-parameter/24135.rdf
Name: detritus
Units: # per m^2 per day
Description: <p>Sedimentation rate - Detritus</p>
http://lod.bco-dmo.org/id/dataset-parameter/24136.rdf
Name: u_p_o_s
Units: # per m^2 per day
Description: <p>Sedimentation rate - u.p.o.'s</p>
http://lod.bco-dmo.org/id/dataset-parameter/24137.rdf
Name: sand_minerals
Units: # per m^2 per day
Description: <p>Sedimentation rate - Sand Minerals</p>
http://lod.bco-dmo.org/id/dataset-parameter/24138.rdf
Name: DW
Units: g/m^2 /d
Description: <p>Dry Weights</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
1371
https://datadocs.bco-dmo.org/file/QAAXxy9UlXwlwy/PITs.csv
PITs.csv
Primary data file for dataset ID 3459
download
https://osprey.bco-dmo.org/dataset/3459/data/download
download
onLine
dataset
<p><u><strong>GoMX Aug/ Sep 2010: PIT traps</strong></u>&nbsp;<br />
<em>Methods</em><br />
Eight (PIT 1 &amp; 2, 7, &amp; 8) to twelve (PIT 3, 4, 5, 6) columns were attached to a cross (2-3 in each of 4 directions) attached 30 m above the weight. Above the column a bungee cord connection that buffered the wave action connected to two large benthos floats and a bead of a series of small floats with a buoy at the surface. The traps, which were suspended at 150 m depth (PIT 1 to 6) or 185 m (PIT &gt; 6) and drifted freely, were deployed at the beginning of each main station and recovered at the end. Deployment time varied around 36 hours, except PIT 7 where it was 24 h. Each trap column was 62.5 cm high, with baffles in the 9 top cm and a diameter of 6.96 cm (area 37.94 cm<sup>2</sup>).<br />
<br />
Gels in jars fitting tightly into the columns were added at the bottom of two columns to investigate size distribution and type of sinking particles. Prior to deployment the cup with the softened gel (softened by adding a layer of 50 ‰ FSW ≥ 2 days before deployment) was fitted into the bottom of the column and overlaid first with a layer of salt-enriched water and then with FSW. The other 6 to 10 columns were filled with FSW which was under laid with 300 mL of salt-enriched water using a tube connected to a sawed off pipette.<br />
<br />
Upon retrieval, water was drained above the gel cups, the cups removed and stored in the fridge. The upper 2/3 of the water in the other columns was also drained after particles wee allowed to settle and the lower third of all columns mixed and used for subsequent analysis of POC, PON, Isotopes. DNA content and oil signature is analyzed for selected samples only.</p>
Specified by the Principal Investigator(s)
<p>Counts: particles were counted in a dissecting scope, abundance calculated.<br />
DW: Subsample was filtered onto pre-weight filter (PC) and filters reweight after drying for 2 h at 60ºC.<br />
<br />
<br />
<strong>BCO-DMO Processing Notes</strong><br />
Generated from original spreadsheet file "GOM_PIT_gelcounts-_BCODMO.xls"&nbsp; contributed by Uta Passow<br />
<br />
<strong>BCO-DMO Edits</strong><br />
- Parameter names modified to conform to BCO-DMO convention<br />
- Lat/Lons added from spreadsheet: "GPS_PIT_Positions.xls" contributed by Uta Passow<br />
- Data re-organized from columns into rows by PIT station</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
Sediment Trap - Particle Interceptor
Sediment Trap - Particle Interceptor
PI Supplied Instrument Name: Sediment Trap - Particle Interceptor Instrument Name: Sediment Trap - Particle Interceptor Instrument Short Name:Sed Trap - Part Int Instrument Description: A Particle Interceptor Trap is a prototype sediment trap designed in the mid 1990s to segregate 'swimmers' from sinking particulate material sampled from the water column. The prototype trap used 'segregation plates' to deflect and segregate 'swimmers' while a series of funnels collected sinking particles in a chamber (see Dennis A. Hansell and Jan A. Newton. September 1994. Design and Evaluation of a "Swimmer"-Segregating Particle Interceptor Trap, Limnology and Oceanography, Vol. 39, No. 6, pp. 1487-1495). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/33/
Cruise: OC468-02
OC468-02
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel
OC468-02
Joseph Montoya
Georgia Institute of Technology
R/V Oceanus
Community Standard Description
International Council for the Exploration of the Sea
R/V Oceanus
vessel