http://lod.bco-dmo.org/id/dataset/3606
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
2012-01-24
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Hydromedusae and zooplankton abundance in Naragansett Bay timeseries from in the coastal northwest Atlantic from 2005-2006 (Hydromedusae trophic ecology project)
2012-11-20
publication
2012-11-20
revision
BCO-DMO Linked Data URI
2012-11-20
creation
http://lod.bco-dmo.org/id/dataset/3606
Dian J. Gifford
University of Rhode Island
principalInvestigator
Sean Colin
Roger Williams University
principalInvestigator
John H. Costello
Providence College
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: Gifford, D. J., Costello, J. H., Colin, S. (2012) Hydromedusae and zooplankton abundance in Naragansett Bay timeseries from in the coastal northwest Atlantic from 2005-2006 (Hydromedusae trophic ecology project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version Jan 24, 2012) Version Date 2012-11-20 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3606 [access date]
hydromedusae and zooplankton abundance in Naragansett Bay timeseries Dataset Description: <p>The focus of the research is the trophic role of small (bell diameter &lt; 5 mm) hydromedusae. Medusae are important, often highly selective, planktonic predators that can strongly affect standing stocks of metazoan zooplankton as well as fish eggs and larvae. The feeding rates, prey selection patterns and the underlying feeding mechanisms that have led to the success of large, conspicuous medusae have been well studied. However, most medusae are small. These small medusae are abundant, taxonomically diverse, and often have cosmopolitan distributions. Yet their feeding ecology is virtually unknown despite their status as the largest and most diverse group of gelatinous zooplankton in the sea.<br />
<br />
The following hypotheses were tested:<br />
&nbsp;&nbsp;&nbsp; (1) Small hydromedusae feed in ways that enable them to utilize protistan prey, including microzooplankton as well as autotrophic protists typically regarded as phytoplankton. Consequently, these hydromedusae are omnivores utilizing microplankton prey rather than strict predators on metazoans.<br />
&nbsp;&nbsp;&nbsp; (2) The combination of high seasonal abundances of these small medusae in coastal waters and their omnivorous diet allows them to function as significant grazers of phytoplankton during periods of peak seasonal production.<br />
<br />
Specific objectives of the research were:<br />
&nbsp;&nbsp;&nbsp; (1) Quantification of the ecological impact of small hydromedusae on their prey community. This objective will be accomplished by measuring the temporal distribution and abundance of hydromedusae and their potential microplankton and metazoan prey, quantifying feeding rates and prey selection, and confirming that the prey ingested are utilized for growth by the medusae.<br />
<br />
&nbsp;&nbsp;&nbsp; (2) Quantification of the mechanical basis of prey selection by the target organisms. This objective will be accomplished by evaluating the sequential components of feeding for each of the target species, predicting prey selection patterns from measured encounter, retention and capture efficiencies of different prey types, and comparing predictions derived from this analysis with empirical results from in situ feeding and prey selection studies.</p> Methods and Sampling: <p>Field Sampling: Field sampling in Narragansett Bay was done twice weekly in 2005 and once weekly in 2006 during the hydromedusan growth season. Hydrographic data was collected using a HydroLab Datasonde 4 profiling package outfitted with sensors for depth, conductivity,and temperature. The potential prey field of hydromedusae consists of mesozooplankton (&gt;200 &micro;m) and microplankton (autotrophs and heterotrophs &lt;200 &micro;m). Mesozooplankton samples include both the hydromedusae and their potential mesozooplankton prey. Mesozooplankton were collected by vertical hauls of a metered 64 &micro;m-mesh 0.5m diameter ring net. Samples were preserved in 4% buffered formaldehyde. Samples for analysis of autotrophic and heterotrophic microplankton were collected using a Niskin bottle deployed at targeted depths, typically 3 depths perstation (surface, mid-depth and bottom of the well-mixed water column). Samples were preserved with 10% (vol/vol) acid Lugols solution, settled, and then processed by inverted microscopy (Gifford and Caron 2001).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0350970 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0350970
completed
Dian J. Gifford
University of Rhode Island
401-874-6690
Narragansett
RI
02882-1197
USA
dgifford@gso.uri.edu
pointOfContact
Sean Colin
Roger Williams University
401-254-3142
Environmental Sciences and Marine Biology
Bristol
RI
02809
USA
scolin@rwu.edu
pointOfContact
John H. Costello
Providence College
1-401-865-2474
Biology Department
Providence
RI
02918-0001
USA
costello@providence.edu
pointOfContact
asNeeded
Dataset Version: Jan 24, 2012
Unknown
date_local
temp_surface
temp_bottom
sal_surface
sal_bottom
depth_w
taxon
taxon2
abundance
yrday_local
year
month_local
day_local
lat
lon
HydroLab Datasonde 4 Multiprobe
Niskin bottle
Plankton Net
theme
None, User defined
date_local
water temperature at measurement depth
temperature (temp2) from secondary sensor
salinity
salinity calculated from the CTD secondary sensors
depth_w
taxon
abundance
day of year and decimal time (local time zone)
year
month_local
day_local
latitude
longitude
featureType
BCO-DMO Standard Parameters
HydroLab DataSonde
Niskin bottle
Plankton Net
instrument
BCO-DMO Standard Instruments
Greenwich_Cove
service
Deployment Activity
coastal northwest Atlantic
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.
Trophic ecology of small hydromedusae: a new perspective on their function in coastal ecosystems
https://osprey.bco-dmo.org/project/2162
Trophic ecology of small hydromedusae: a new perspective on their function in coastal ecosystems
<p>The focus of the research is the trophic role of small (bell diameter < 5 mm) hydromedusae. Medusae are important, often highly selective, planktonic predators that can strongly affect standing stocks of metazoan zooplankton as well as fish eggs and larvae. The feeding rates, prey selection patterns and the underlying feeding mechanisms that have led to the success of large, conspicuous medusae have been well studied. However, most medusae are small. These small medusae are abundant, taxonomically diverse, and often have cosmopolitan distributions. Yet their feeding ecology is virtually unknown despite their status as the largest and most diverse group of gelatinous zooplankton in the sea.</p>
<p>The following hypotheses were tested:<br />
(1) Small hydromedusae feed in ways that enable them to utilize protistan prey, including microzooplankton as well as autotrophic protists typically regarded as phytoplankton. Consequently, these hydromedusae are omnivores utilizing microplankton prey rather than strict predators on metazoans. <br />
(2) The combination of high seasonal abundances of these small medusae in coastal waters and their omnivorous diet allows them to function as significant grazers of phytoplankton during periods of peak seasonal production.</p>
<p>Specific objectives of the research were:<br />
(1) Quantification of the ecological impact of small hydromedusae on their prey community. This objective will be accomplished by measuring the temporal distribution and abundance of hydromedusae and their potential microplankton and metazoan prey, quantifying feeding rates and prey selection, and confirming that the prey ingested are utilized for growth by the medusae.</p>
<p>(2) Quantification of the mechanical basis of prey selection by the target organisms. This objective will be accomplished by evaluating the sequential components of feeding for each of the target species, predicting prey selection patterns from measured encounter, retention and capture efficiencies of different prey types, and comparing predictions derived from this analysis with empirical results from <i>in situ </i>feeding and prey selection studies.</p>
<p> </p>
<p>Field Sampling: Field sampling was done twice weekly in 2005 and once weekly in 2006 during the hydromedusan growth season. Hydrographic data was collected using a HydroLab Datasonde 4 profiling package outfitted with sensors for depth, conductivity,and temperature. The potential prey field of hydromedusae consists of mesozooplankton (>200 μm) and microplankton (autotrophs and heterotrophs <200 μm). Mesozooplankton samples include both the hydromedusae and their potential mesozooplankton prey. Mesozooplankton were collected by vertical hauls of a metered 64 μm-mesh 0.5m diameter ring net. Samples were preserved in 4% buffered formaldehyde. Samples for analysis of autotrophic and heterotrophic microplankton were collected using a Niskin bottle deployed at targeted depths, typically 3 depths perstation (surface, mid-depth and bottom of the well-mixed water column). Samples were preserved with 10% (vol/vol) acid Lugols solution, settled, and then processed by inverted microscopy (Gifford and Caron 2001).</p>
Hydromedusae trophic ecology
largerWorkCitation
project
eng; USA
oceans
coastal northwest Atlantic
2012-11-20
0
BCO-DMO catalogue of parameters from Hydromedusae and zooplankton abundance in Naragansett Bay timeseries from in the coastal northwest Atlantic from 2005-2006 (Hydromedusae trophic ecology 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/26765.rdf
Name: date_local
Units: mm/dd/YYYY
Description: <p>local date</p>
http://lod.bco-dmo.org/id/dataset-parameter/26766.rdf
Name: temp_surface
Units: degrees Celsius
Description: <p>surface temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/26767.rdf
Name: temp_bottom
Units: degrees Celsius
Description: <p>bottom temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/26768.rdf
Name: sal_surface
Units: PSU
Description: <p>surface salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/26769.rdf
Name: sal_bottom
Units: PSU
Description: <p>bottom salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/26770.rdf
Name: depth_w
Units: meters
Description: <p>depth of water</p>
http://lod.bco-dmo.org/id/dataset-parameter/26771.rdf
Name: taxon
Units: text
Description: <p>taxonomic group</p>
http://lod.bco-dmo.org/id/dataset-parameter/26772.rdf
Name: taxon2
Units: text
Description: <p>sub-taxonomic group</p>
http://lod.bco-dmo.org/id/dataset-parameter/26773.rdf
Name: abundance
Units: number/liter or number/m^3
Description: <p>abundance of animals: microzooplankton abundance = #/L; all other groups = #/m^3</p>
http://lod.bco-dmo.org/id/dataset-parameter/30851.rdf
Name: yrday_local
Units: unknown
Description: <p>local 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/30852.rdf
Name: year
Units: unknown
Description: <p>year of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/30853.rdf
Name: month_local
Units: 1 to 12
Description: <p>month of sampling, local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/30854.rdf
Name: day_local
Units: 1 to 31
Description: <p>day of month</p>
http://lod.bco-dmo.org/id/dataset-parameter/30874.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude - North is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/30875.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude - West is negative.</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
155371
https://datadocs.bco-dmo.org/file/A88rL5VulolDlj/zoop_abund.csv
zoop_abund.csv
Primary data file for dataset ID 3606
download
https://osprey.bco-dmo.org/dataset/3606/data/download
download
onLine
dataset
<p>Field Sampling: Field sampling in Narragansett Bay was done twice weekly in 2005 and once weekly in 2006 during the hydromedusan growth season. Hydrographic data was collected using a HydroLab Datasonde 4 profiling package outfitted with sensors for depth, conductivity,and temperature. The potential prey field of hydromedusae consists of mesozooplankton (&gt;200 &micro;m) and microplankton (autotrophs and heterotrophs &lt;200 &micro;m). Mesozooplankton samples include both the hydromedusae and their potential mesozooplankton prey. Mesozooplankton were collected by vertical hauls of a metered 64 &micro;m-mesh 0.5m diameter ring net. Samples were preserved in 4% buffered formaldehyde. Samples for analysis of autotrophic and heterotrophic microplankton were collected using a Niskin bottle deployed at targeted depths, typically 3 depths perstation (surface, mid-depth and bottom of the well-mixed water column). Samples were preserved with 10% (vol/vol) acid Lugols solution, settled, and then processed by inverted microscopy (Gifford and Caron 2001).</p>
Specified by the Principal Investigator(s)
<p>Microzooplankton abundance is displayed as number/liter, the other groups are number/cubic meter.</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
HydroLab Datasonde 4 Multiprobe
HydroLab Datasonde 4 Multiprobe
PI Supplied Instrument Name: HydroLab Datasonde 4 Multiprobe PI Supplied Instrument Description:This package was outfitted with sensors for depth, conductivity,and temperature. Instrument Name: HydroLab DataSonde Instrument Short Name: Instrument Description: Hydrolab DataSonde Multiparameter Probes have sensors for temperature, conductivity, salinity, specific conductance, TDS, pH, ORP, dissolved oxygen, turbidity, chlorophyll a, blue-green algae, Rhodamine WT, ammonium, nitrate, chloride, ambient light (PAR), and total dissolved gas.
Niskin bottle
Niskin bottle
PI Supplied Instrument Name: Niskin bottle PI Supplied Instrument Description:Deployed at targeted depths, typically 3 depths per station (surface, mid-depth and bottom of the well-mixed water column) Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Plankton Net
Plankton Net
PI Supplied Instrument Name: Plankton Net PI Supplied Instrument Description:64 µm-mesh 0.5m diameter ring net with flow meter. 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/
Deployment: Greenwich_Cove
Greenwich_Cove
Narragansett_Bay
dock
Greenwich_Cove
Dian J. Gifford
University of Rhode Island
Narragansett_Bay
dock