http://lod.bco-dmo.org/id/dataset/723801
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
2018-01-17
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Species composition from net tows and associated CTD data from a small boat in the Mid-Chesapeake Bay from August to October 2013 (CopesPopDynHypoZone project)
2018-01-12
publication
2018-01-12
revision
BCO-DMO Linked Data URI
2018-01-12
creation
http://lod.bco-dmo.org/id/dataset/723801
Michael R. Roman
University of Maryland Center for Environmental Science
principalInvestigator
James J. Pierson
University of Maryland Center for Environmental Science
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: Roman, M. R., Pierson, J. J. (2018) Species composition from net tows and associated CTD data from a small boat in the Mid-Chesapeake Bay from August to October 2013 (CopesPopDynHypoZone project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2018-01-12 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/723801 [access date]
Species composition with CTD data: 5 daytrips Dataset Description: <p>This dataset includes&nbsp;species composition data from plankton net samples and associated CTD information.</p>
<p><strong>Related Datasets:</strong><br />
<a href="https://www.bco-dmo.org/dataset/723568" target="_blank">Acartia </a><a href="https://www.bco-dmo.org/dataset/723568" target="_blank">tonsa</a><a href="https://www.bco-dmo.org/dataset/723568" target="_blank"> mortality with CTD data: 5 </a><a href="https://www.bco-dmo.org/dataset/723568" target="_blank">daytrips</a></p> Methods and Sampling: <p>This abundance and diversity data was obtained from several ~8 hour small-boat cruises done about every other week from August to October. Vertical tow samples were taken from the mid-bay of the Chesapeake from several stations in a transect, corresponding to the mid-line transect sampled by the two week-long cruises (stations M1-M3, cruises 1301/1302). More stations along the same transect were included in the collection of this data set.</p>
<p>The plankton nets used for sampling were 0.5m in diameter and made of either 200µm or 64µm mesh. These were equipped to close with a mechanical messenger trigger and were deployed from the winch arm of the R/V Parker.</p>
<p>A CTD cast was done at each station prior to sampling with the plankton net. Sampling depths were determined based on the location of the pycnocline; the aim was to capture zooplankton below and above the pycnocline. For sampling below the pycnocline, the net was deployed below the pycnocline, towed up to the pycnocline, triggered to close, and returned to the surface. Sampling above the pycnocline was done by standard vertical tow: deploy net to desired depth and winch to the surface.</p>
<p>Once brought on board, the nets were rinsed down with to seawater to collect plankton in the codend. Codends were filtered onto 64µm sieves, then the samples were transferred to glass jars labeled on the lid with the date, time, station, and depth sampled. Sieves with 64µm mesh were selected to catch all life stages of the copepod <em>Acartia tonsa</em> since <em>Acartia tonsa</em> eggs are about 75µm in diameter and all subsequent life stages are larger. Buffered formalin was added to each jar to preserve the sample in a 4% solution.</p>
<p>After returning from the cruises, samples were stored indoors in climate-controlled laboratory space. To process the samples, the contents of the jars were filtered onto 25µm mesh (to avoid loss of organisms), resuspended, and a subsample taken with a stemple pipette was transferred to a counting wheel where it was checked for density and diluted if necessary, the goal being at least 200 individuals of <em>Acartia tonsa</em> present but less than 300.</p>
<p>The sample was then examined for species composition under dissecting microscope with darkfield illumination. All organisms were identified to lowest possible taxonomic level. When species composition analysis was complete, the sample was returned to the original glass jar and returned to storage.</p>
<p>Abundance data were entered into Excel spreadsheets and checked for transcription errors, then imported into MatLab for data analysis.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1259691 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1259691
completed
Michael R. Roman
University of Maryland Center for Environmental Science
410-221-8425
Horn Point Laboratory 2020 Horns Point Road
Cambridge
MD
21613
USA
roman@umces.edu
pointOfContact
James J. Pierson
University of Maryland Center for Environmental Science
410-221-8218
Horn Point Laboratory 2020 Horns Point Road
Cambridge
MD
21613
USA
jpierson@umces.edu
pointOfContact
asNeeded
Unknown
cruise
date
time
EDT_DOY
Station
Lateral_station
Net_mesh_um
Tow
Low_depth
High_depth
Genus
Species
Stage
Num_in_aliquot
Num_per_m3
Abund_m2
Notes
Latitude
Longitude
Year
Month
Day
GMT_Hour
Minute
Second
GMT_DOY
prSM
t090C
c0S_m
sbeox0V
wetStar
obs
bat
xmiss
sbeox0Mg_L
sbeox0PS
sigma_t00
depSM
sal00
nbin
flag
SBE 9plus
Dissecting microscope
0.5m plankton net
theme
None, User defined
Cruise identfier
date
time_local
day of year and decimal time (local time zone)
station
net mesh size
tow
depth_max
depth_min
genus
species scientific name (binomial)
stage
count
abundance
comments
latitude
longitude
year
month_gmt
day_gmt
hour_gmt
minute_gmt
seconds_gmt
UTC day of year and decimal time
water pressure
water temperature at measurement depth
conductivity
Oxygen in volts
fluorescence
light backscattered
beam attenuation
light_trans
O2 saturation
Dissolved oxygen (percent)
sigma-t
salinity
number of bins
flag
featureType
BCO-DMO Standard Parameters
CTD - profiler
Microscope - Optical
Plankton Net
instrument
BCO-DMO Standard Instruments
HPL_2013-08-02
HPL_2013-08-16
HPL_2013-09-06
HPL_2013-09-20
HPL_2013-10-04
service
Deployment Activity
Mid-Chesapeake Bay
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.
Copepod Population Dynamics in Hypoxic Coastal Waters: Physical and Behavioral Regulation of Resupply and Advective Losses
https://osprey.bco-dmo.org/project/555546
Copepod Population Dynamics in Hypoxic Coastal Waters: Physical and Behavioral Regulation of Resupply and Advective Losses
<p><em>Description from NSF award abstract:</em><br />
The PIs will develop a mechanistic understanding of how circulation interacts with hypoxia-induced behavioral and physiological changes to affect the population dynamics of coastal zooplankton. They will do this by assessing two potentially contrasting mechanisms influencing the dynamics of the copepod <em>Acartia tonsa</em> in the hypoxic zone of Chesapeake Bay. The first hypothesis is that maintenance of copepod populations in the hypoxic region requires replenishment by advection (immigration) of animals through wind-driven lateral transport processes. The second, counteractive, hypothesis is that bottom water hypoxia alters the vertical distribution of <em>A. tonsa</em>, thereby making them more susceptible to advective losses from the region (emigration) via surface water transport in the estuarine circulation. They will take advantage of a current NSF-funded physical oceanography research program in Chesapeake Bay that will comprehensively measure and model axial and lateral water exchanges in the mid-Bay region.</p>
<p>The present study will use the physical oceanography study site as a Controlled Volume (CV) in which the oceanographic exchanges of water and the driving mechanisms for those exchanges will be well defined. The PIs will conduct high-resolution spatial and temporal sampling of zooplankton and combine the data with measurements of copepod behavior, mortality and egg production in the hypoxic region. They will use an improved Individual-Based Model of the life history of <em>A. tonsa</em> coupled with the circulation to explore the combined effects of advection, behavior, egg production, and mortality on population dynamics. In addition to increasing our knowledge of the impacts of bottom water hypoxia on copepod populations in Chesapeake Bay, the study will improve our general understanding of the regulation of zooplankton populations by physical and biological processes and the impacts of hypoxia on secondary production and food webs in coastal waters.</p>
CopesPopDynHypoZone
largerWorkCitation
project
eng; USA
biota
oceans
Mid-Chesapeake Bay
-76.43992
-76.35638
38.45012
38.48245
2013-08-02
2013-10-04
hypoxic zone of Chesapeake Bay
0
BCO-DMO catalogue of parameters from Species composition from net tows and associated CTD data from a small boat in the Mid-Chesapeake Bay from August to October 2013 (CopesPopDynHypoZone 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/723821.rdf
Name: cruise
Units: unitless
Description: <p>Chronological cruise number used to refer to each day-long cruise</p>
http://lod.bco-dmo.org/id/dataset-parameter/723822.rdf
Name: date
Units: unitless
Description: <p>Gergorian calendar date as recorded in the cruise log formatted as mm/dd/yyyy</p>
http://lod.bco-dmo.org/id/dataset-parameter/723823.rdf
Name: time
Units: unitless
Description: <p>Time of sampling in EDT as recorded in the cruise log formatted as hhmm</p>
http://lod.bco-dmo.org/id/dataset-parameter/723824.rdf
Name: EDT_DOY
Units: decimal day
Description: <p>Day of year calculation using cruise log EDT time</p>
http://lod.bco-dmo.org/id/dataset-parameter/723825.rdf
Name: Station
Units: unitless
Description: <p>Station ID as recorded in the day-cruise log</p>
http://lod.bco-dmo.org/id/dataset-parameter/723826.rdf
Name: Lateral_station
Units: unitless
Description: <p>Station ID as given in the Lateral Copepods week-long cruises</p>
http://lod.bco-dmo.org/id/dataset-parameter/723827.rdf
Name: Net_mesh_um
Units: microns
Description: <p>Net mesh size (64 or 200 micron)</p>
http://lod.bco-dmo.org/id/dataset-parameter/723828.rdf
Name: Tow
Units: unitless
Description: <p>plankton tow cast identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/723829.rdf
Name: Low_depth
Units: meters
Description: <p>The lowest depth of the range sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/723830.rdf
Name: High_depth
Units: meters
Description: <p>The highest depth of the range sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/723831.rdf
Name: Genus
Units: unitless
Description: <p>Genus or least specific identifier of organism in sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/723832.rdf
Name: Species
Units: unitless
Description: <p>Species or most specific identifier of organism in sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/723833.rdf
Name: Stage
Units: unitless
Description: <p>Life stage of organism in sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/723834.rdf
Name: Num_in_aliquot
Units: individuals
Description: <p>Taxon count per aliquot</p>
http://lod.bco-dmo.org/id/dataset-parameter/723835.rdf
Name: Num_per_m3
Units: individuals/meter^3 (#/m^3)
Description: <p>Taxon abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/723836.rdf
Name: Abund_m2
Units: individuals/meter^2 (#/m^2)
Description: <p>Taxon abundance integrated of the depth column</p>
http://lod.bco-dmo.org/id/dataset-parameter/723837.rdf
Name: Notes
Units: unitless
Description: <p>Notes from the technician made during sampling and sample processing</p>
http://lod.bco-dmo.org/id/dataset-parameter/723838.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Station latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/723839.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Station longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/723840.rdf
Name: Year
Units: unitless
Description: <p>Year as recorded by CTD as yyyy</p>
http://lod.bco-dmo.org/id/dataset-parameter/723841.rdf
Name: Month
Units: unitless
Description: <p>Month as recorded by CTD as mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/723842.rdf
Name: Day
Units: unitless
Description: <p>Day as recorded by CTD as dd</p>
http://lod.bco-dmo.org/id/dataset-parameter/723843.rdf
Name: GMT_Hour
Units: unitless
Description: <p>Hour as recorded by CTD; GMT time as hh</p>
http://lod.bco-dmo.org/id/dataset-parameter/723844.rdf
Name: Minute
Units: unitless
Description: <p>Minute as recorded by CTD as mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/723845.rdf
Name: Second
Units: unitless
Description: <p>Second as recorded by CTD as ss</p>
http://lod.bco-dmo.org/id/dataset-parameter/723846.rdf
Name: GMT_DOY
Units: decimal day
Description: <p>Day of year calculation using CTD recorded GMT time for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723847.rdf
Name: prSM
Units: decibars
Description: <p>Pressure as recorded by CTD sensor for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723848.rdf
Name: t090C
Units: degrees Celsius
Description: <p>Temperature recorded by CTD sensor for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723849.rdf
Name: c0S_m
Units: microSiemens/meter (uS/m)
Description: <p>Condictivity recorded by CTD sensor for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723850.rdf
Name: sbeox0V
Units: volts
Description: <p>Raw oxygen measurements as recorded by CTD sensors for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723851.rdf
Name: wetStar
Units: volts?
Description: <p>Fluorescence measure as recorded by WETStar fluorometer on CTD for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723852.rdf
Name: obs
Units: volts?
Description: <p>Optical backscatter as recorded by CTD sensor for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723853.rdf
Name: bat
Units: per meter
Description: <p>Beam attenuation as recorded by SBE software</p>
http://lod.bco-dmo.org/id/dataset-parameter/723854.rdf
Name: xmiss
Units: unitless
Description: <p>Beam transmission as recorded by SBE software</p>
http://lod.bco-dmo.org/id/dataset-parameter/723855.rdf
Name: sbeox0Mg_L
Units: milligrams/liter (mg/L)
Description: <p>Dissolved oxygen calculated in SEB post-processing from oxygen data recorded by CTD sensors for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723856.rdf
Name: sbeox0PS
Units: unitless
Description: <p>Dissolved oxygen pressure saturation calculated in SEB post-processing from oxygen data recorded by CTD sensors for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723857.rdf
Name: sigma_t00
Units: ?
Description: <p>Density recorded by CTD sensors for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723858.rdf
Name: depSM
Units: meters
Description: <p>Depth bins; one bin per half meter and then averaged over the depth range of each net cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723859.rdf
Name: sal00
Units: Practical Salinity Units (PSU)
Description: <p>Salinity recorded by CTD sensor for each cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/723860.rdf
Name: nbin
Units: unitless
Description: <p>Number of measures per depth bin; averaged per net depth range</p>
http://lod.bco-dmo.org/id/dataset-parameter/723861.rdf
Name: flag
Units: unitless
Description: <p>Flag for abberant data</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
117806
https://datadocs.bco-dmo.org/file/0AAMN8OHkjXmWl/species_composition.csv
species_composition.csv
Primary data file for dataset ID 723801
download
https://osprey.bco-dmo.org/dataset/723801/data/download
download
onLine
dataset
<p>This abundance and diversity data was obtained from several ~8 hour small-boat cruises done about every other week from August to October. Vertical tow samples were taken from the mid-bay of the Chesapeake from several stations in a transect, corresponding to the mid-line transect sampled by the two week-long cruises (stations M1-M3, cruises 1301/1302). More stations along the same transect were included in the collection of this data set.</p>
<p>The plankton nets used for sampling were 0.5m in diameter and made of either 200µm or 64µm mesh. These were equipped to close with a mechanical messenger trigger and were deployed from the winch arm of the R/V Parker.</p>
<p>A CTD cast was done at each station prior to sampling with the plankton net. Sampling depths were determined based on the location of the pycnocline; the aim was to capture zooplankton below and above the pycnocline. For sampling below the pycnocline, the net was deployed below the pycnocline, towed up to the pycnocline, triggered to close, and returned to the surface. Sampling above the pycnocline was done by standard vertical tow: deploy net to desired depth and winch to the surface.</p>
<p>Once brought on board, the nets were rinsed down with to seawater to collect plankton in the codend. Codends were filtered onto 64µm sieves, then the samples were transferred to glass jars labeled on the lid with the date, time, station, and depth sampled. Sieves with 64µm mesh were selected to catch all life stages of the copepod <em>Acartia tonsa</em> since <em>Acartia tonsa</em> eggs are about 75µm in diameter and all subsequent life stages are larger. Buffered formalin was added to each jar to preserve the sample in a 4% solution.</p>
<p>After returning from the cruises, samples were stored indoors in climate-controlled laboratory space. To process the samples, the contents of the jars were filtered onto 25µm mesh (to avoid loss of organisms), resuspended, and a subsample taken with a stemple pipette was transferred to a counting wheel where it was checked for density and diluted if necessary, the goal being at least 200 individuals of <em>Acartia tonsa</em> present but less than 300.</p>
<p>The sample was then examined for species composition under dissecting microscope with darkfield illumination. All organisms were identified to lowest possible taxonomic level. When species composition analysis was complete, the sample was returned to the original glass jar and returned to storage.</p>
<p>Abundance data were entered into Excel spreadsheets and checked for transcription errors, then imported into MatLab for data analysis.</p>
Specified by the Principal Investigator(s)
<p>Zooplankton samples were sorted under a stereo dissecting microscope within one year of collection. Sub-samples were taken with a pipet such that a minimum of 200 individuals were counted from each sample. Zooplankton were identified to lowest possible taxonomic level, to species where possible for copepods, and copepod adults were sexed.&nbsp;</p>
<p><strong>BCO-DMO Data Processing Notes:</strong><br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- replaced commas with semicolons<br />
- changed blank cells and NaN's with nd for 'no data'<br />
- converted longitudes to negative degree (west)<br />
- split Net_mesh and Tow into separate columns</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
SBE 9plus
SBE 9plus
PI Supplied Instrument Name: SBE 9plus PI Supplied Instrument Description:Used for sampling; There were twelve Niskin bottles on the SBE 32 Carousel Water Sampler, deployed from the starboard winch of the RV Sharp, along with the SBE 9plus unit which was attached to the rosette. Attached to an SBE 11plus V2 Deck Unit 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/
Dissecting microscope
Dissecting microscope
PI Supplied Instrument Name: Dissecting microscope PI Supplied Instrument Description:Used to count live and dead copepods. Instrument Name: Microscope - Optical Instrument Short Name: Instrument Description: Instruments that generate enlarged images of samples using the phenomena of reflection and absorption of visible light. Includes conventional and inverted instruments. Also called a "light microscope". Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB05/
0.5m plankton net
0.5m plankton net
PI Supplied Instrument Name: 0.5m plankton net PI Supplied Instrument Description:Used to collect live zooplankton. The plankton net was 0.5m in diameter and made of 64µm mesh, equipped to close with a mechanical messenger trigger, and was deployed from the winch arm of the R/V Parker. 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/
Cruise: HPL_2013-08-02
HPL_2013-08-02
small boat: UMCES
small boat: UMCES
vessel
HPL_2013-08-02
James J. Pierson
University of Maryland Center for Environmental Science
Cruise: HPL_2013-08-16
HPL_2013-08-16
small boat: UMCES
small boat: UMCES
vessel
HPL_2013-08-16
James J. Pierson
University of Maryland Center for Environmental Science
Cruise: HPL_2013-09-06
HPL_2013-09-06
small boat: UMCES
small boat: UMCES
vessel
HPL_2013-09-06
James J. Pierson
University of Maryland Center for Environmental Science
Cruise: HPL_2013-09-20
HPL_2013-09-20
small boat: UMCES
small boat: UMCES
vessel
HPL_2013-09-20
James J. Pierson
University of Maryland Center for Environmental Science
Cruise: HPL_2013-10-04
HPL_2013-10-04
small boat: UMCES
small boat: UMCES
vessel
HPL_2013-10-04
James J. Pierson
University of Maryland Center for Environmental Science
small boat: UMCES
small boat: UMCES
vessel