http://lod.bco-dmo.org/id/dataset/2915
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
2010-06-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Cruise schedule summary from R/V Cape Henlopen BAMS-multi in the Chesapeake Bay from 2001-2004 (BAMS project)
2008-10-28
publication
2008-10-28
revision
BCO-DMO Linked Data URI
2008-10-28
creation
http://lod.bco-dmo.org/id/dataset/2915
Bess B. Ward
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
documentDigital
Cite this dataset as: Ward, B. B. (2008) Cruise schedule summary from R/V Cape Henlopen BAMS-multi in the Chesapeake Bay from 2001-2004 (BAMS project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 28 October 2008) Version Date 2008-10-28 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/2915 [access date]
Cruise schedule summary Dataset Description: <p><b>BAMS - Cruise schedule summary</b></p> Methods and Sampling: <p>BAMS cruise summary data compiled from general cruise information provided by Bess Ward<br />
in the cruise metadata form and from the UNOLS yearly schedules for the R/V Cape Henlopen<br />
for the years 2000-2004.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-9981482 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=9981482
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-9981617 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=9981617
completed
Bess B. Ward
University of Maryland Center for Environmental Science
609-258-5150
Geosciences Department 217 Guyot Hall
Princeton
NJ
08544-1003
USA
bbw@princeton.edu
pointOfContact
asNeeded
Dataset Version: 28 October 2008
Unknown
BAMS-multi
service
Deployment Activity
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.
Biocomplexity of Aquatic Microbial Systems
http://geoweb.princeton.edu/research/biocomplexity/index.html
Biocomplexity of Aquatic Microbial Systems
<p><strong>NSF: Collaborative Research: Biocomplexity of Aquatic Microbial Systems: Relating Diversity of Microorganisms to Ecosystem Function</strong></p>
<p>The "Biocomplexity of Aquatic Microbial Systems: Relating Diversity of Microorganisms to Ecosystem Function" Project was funded by the US NSF in 2000 as one of several collaborative research initiatives comprising the NSF Biocomplexity program. Microbial biogeochemical cycling of the elements regulates a dynamic environment in which the cycles of different elements are linked through the physiology of microorganisms. While a certain degree of understanding can be gained through physical/chemical approaches to measurement and modeling of the net transformations, these approaches necessarily rely on gross simplifications about the role and regulation of the various functional groups (guilds) involved. The nutrient elements, such as carbon , nitrogen, phosphorous and several important metals, occur in ecosystems in many different forms (e.g., organic carbon and carbon dioxide; nitrate, nitrite, nitrous oxide, organic nitrogen and nitrogen gas, etc.). The transformations between different forms, and the distributions of the various compounds, are largely controlled by microbes. Thus the physiology of bacteria and phytoplankton is largely responsible for the chemistry of natural systems, through what we call microbial biogeochemical cycling.</p>
<p>Our present understanding of elemental cycling is partly derived from measurements and modeling of the distribution of chemical compounds, and the measurement of the rates of transfer of compounds from one form to another. This approach has led to an appreciation of the overwhelming importance of microbes in regulating ecosystem biogeochemistry. But they still represent a great oversimplification of the complexities of microbial processes. Recent advances in molecular microbial ecology have shown the microbial world to contain immense diversity and complexity at every level: redundancy and duplication of functional genes within a single organism; molecular diversity among functional genes that encode the same process in different organisms; large genetic diversity among different organisms apparently engaged in the same biogeochemical function within single communities; great variability in the species composition of different communities that apparently perform equally well.</p>
<p>The goal of this project is to investigate the functional relationship between complexity in microbial communities and the physical/chemical environment at a range of biological and ecological scales. Previously, such analysis was technologically limited by the inability to assay large numbers of samples simultaneously for a large number of genes and phylotypes. Using gene array technology, the researchers will be able to detect the distribution and differential expression of functional genes in natural systems.</p>
<p>The results of this study constitute the first step towards application of DNA chip technology for gene expression of "exotic" (i.e., not of biomedical importance) processes and organisms in the environment. The gene arrays, along with a full suite of ecosystem process measurements, were applied and assessed along a transect that spans the eutrophic - oligotrophic gradient from the inland waters of the Chesapeake Bay out to the Sargasso Sea. The study area included sites in the Chesapeake Bay, one of its branches, the Choptank River, and the open ocean of the Sargasso Sea, which is the major ocean basin into which water from the Chesapeake Bay flows. Experiments and functional gene studies focused on key transformations in the carbon and nitrogen cycles (C fixation, N fixation, nitrification, denitrification, urea assimilation). The diversity of guilds are being interpreted in terms of ecosystem function, assessed using geochemical data and tracer experiments. In addition to field studies designed to investigate and dissect the natural system, the group of collaborating scientists also performed perturbation experiments using mesocosms. The goal of these experiments was to determine how microbial species diversity affects the major energy and nutrient flows within ecosystems, and to assess the degree of stability or instability associated with changes in redundancy within guilds of microorganisms responsible for major nitrogen and carbon pathways.</p>
<p>The complexity of microbial guilds and microbial processes and the attendant diversity of functional genes and organisms were represented in two parallel investigative themes:</p>
<p>1.Diversity of functional genes: Previously, such analysis was technologically limited by the inability to assay large numbers of samples simultaneously for a large number of genes and organisms. Using gene array technology , we were able to detect the distribution and differential expression of functional genes in natural systems. The results of this study constitutes the first step towards application of DNA chip technology for gene expression of processes and organisms in the natural environment.</p>
<p>2.Rates of biogeochemical processes: Studies focused on key transformations in the carbon and nitrogen cycles (C fixation, N fixation, nitrification, denitrification, urea assimilation). The diversity of microbial guilds were interpreted in terms of ecosystem function, assessed using the physical/chemical data mentioned above and tracer experiments to estimate actual transformation rates.</p>
<p> </p>
<pre>
Station Identifications, locations, and sample depths
LocationIDLatitudeLongitudeShallow (m)Deep (m)
Upper ChoptankCT100N 38° 48.356'W 75° 54.625'15
Lower ChoptankCT200N 38° 37.215'W 76° 08.189'18
Upper BayCB100N 39° 20.9'W 76° 10.9'110
Mid BayCB200N 38° 34.1'W 76° 26.6'121
Lower BayCB300N 37° 16.1'W 76° 09.0'112
PlumePL100N 36° 52'W 75° 55'114
SargassoSS100N 36° 24'W 72° 00'12000+</pre><p> </p>
<p>Bacterial Productivities: Leucine incorporation (Kirchman, et al. 1985. Appl. Environm. Microbiol. 49: 599-607)</p>
<p>Photosynthesis: Carbon-14 incorporation (1 hr incubation) in Photosynthetron light gradient. Alpha and Pmax determined from hyperbolic curve fit.</p>
<p>Data supplied by Todd Kana, Horn Point Laboratory, Cambridge, MD.<br />
</p>
BAMS
largerWorkCitation
project
eng; USA
oceans
Chesapeake Bay
2008-10-28
Chesapeake Bay, one of its branches, the Choptank River, and the open ocean of the Sargasso Sea
0
BCO-DMO catalogue of parameters from Cruise schedule summary from R/V Cape Henlopen BAMS-multi in the Chesapeake Bay from 2001-2004 (BAMS 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
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
https://osprey.bco-dmo.org/dataset/2915/data/download
download
onLine
dataset
<p>BAMS cruise summary data compiled from general cruise information provided by Bess Ward<br />
in the cruise metadata form and from the UNOLS yearly schedules for the R/V Cape Henlopen<br />
for the years 2000-2004.</p>
from Cruise: BAMS-multi <p>BAMS cruise summary data compiled from general cruise information provided by Bess Ward<br />
in the cruise metadata form and from the UNOLS yearly schedules for the R/V Cape Henlopen<br />
for the years 2000-2004.</p>
Specified by the Principal Investigator(s)
<p>Prepared by BCO-DMO staff</p>
from Cruise: BAMS-multi <p>Prepared by BCO-DMO staff</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
Cruise: BAMS-multi
BAMS-multi
Community Standard Description
International Council for the Exploration of the Sea
R/V Cape Henlopen
vessel
BAMS-multi
Jeff Alexander
University of Maryland Center for Environmental Science
Community Standard Description
International Council for the Exploration of the Sea
R/V Cape Henlopen
vessel