gov.noaa.nodc:0117507 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-03-19T23:26:43Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Biological, physical, and chemical data collected from inshore and shelf surface waters in Alabama from 2009-07 to 2011-12 (NCEI Accession 0117507) 2014-04-21 publication 2014-04-15 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0117507 NCEI Archive Management System 0117507 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Mimi Tzeng Dauphin Island Sea Lab (DISL) mtzeng@disl.org https://www.disl.edu/ HTTPS Dauphin Island Sea Lab (DISL) website Institution web page information resourceProvider Dauphin Island Sea Lab (DISL) https://www.disl.edu/ HTTPS Dauphin Island Sea Lab (DISL) website Institution web page information resourceProvider Alice Ortmann Dauphin Island Sea Lab (DISL) https://www.disl.edu/ HTTPS Dauphin Island Sea Lab (DISL) website Institution web page information principalInvestigator Ortmann, Alice Dauphin Island Sea Lab https://www.disl.edu/ HTTPS Dauphin Island Sea Lab (DISL) website Institution web page information author Dauphin Island Sea Lab (DISL) https://www.disl.edu/ HTTPS Dauphin Island Sea Lab (DISL) website Institution web page information contributor tableDigital Quantifying the linkages between primary production and higher trophic levels is necessary to understand why particular regions can support high fisheries production. Modified dilution experiments were employed to characterize microbial communities in surface waters at four sites from within a bay to the shelf in the northern Gulf of Mexico (nGOM). Inshore surface waters were more variable than shelf surface waters due to the strong influence of river discharge. Phytoplankton (Chl a) and prokaryote biomass were both significantly higher inshore than on the shelf, with phytoplankton significantly higher than prokaryotes inshore. Virus and heterotrophic nanoflagellate abundances, however, did not differ between inshore and shelf waters. Samples were amended with nutrients (N + P) to examine the impact of nutrient limitation. Prokaryotes were nutrient limited in 14 (28%) of the experiments, while phytoplankton were nutrient limited in 26 (52%) of the experiments. When phytoplankton were nutrient limited, prokaryote growth rates were significantly altered. A similar impact on phytoplankton growth rates occurred when prokaryotes were nutrient limited, suggesting that the two groups are in competition for resources. Grazing was detected in the majority of experiments, while viral lysis was only detected in 24% of phytoplankton and 12% of prokaryote experiments. Growth and grazing rates for both phytoplankton and prokaryotes were tightly coupled inshore and on the shelf, with significantly more phytoplankton and prokaryotes grazed inshore (average = 106% and 75%, respectively) than on the shelf (average = 55% and 57%). These findings indicate that surface waters across the estuary are highly productive, with microzooplankton grazing transferring the majority of the microbial production to higher trophic levels. These experiments were designed to determine the relative roles of grazing and viral lysis on the microbial communities in Mobile Bay, Alabama. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0117507 Preview graphic PNG 0117507 NCEI ACCESSION NUMBER 2014-04-15 publication BIOMASS BIOMASS - PLANKTON CHLOROPHYLL A Dissolved Organic Nitrogen DISSOLVED OXYGEN graze rate (or grazing rate) growth rate MICROBIOLOGY MICROPLANKTON NANOPLANKTON NITROGEN NUTRIENTS PHYTOPLANKTON PHYTOPLANKTON BIOMASS SALINITY Silicon WATER TEMPERATURE ZOOPLANKTON BIOMASS theme NODC DATA TYPES THESAURUS bottle CTD Flow Cytometer fluorescence microscope fluorometer laboratory analysis nutrient autoanalyzer instrument NODC INSTRUMENT TYPES THESAURUS biological chemical laboratory analyses manual sample collection physical phytoplankton abundance site samples surface measurements theme NODC OBSERVATION TYPES THESAURUS Dauphin Island Sea Lab dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Dauphin Island Sea Lab dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Deepwater Horizon oil spill event (DWH) project NODC PROJECT NAMES THESAURUS Coastal Waters of Alabama Coastal Waters of Gulf of Mexico Gulf of Mexico North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON EARTH SCIENCE > BIOSPHERE > VEGETATION > BIOMASS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian AUTOANALYZER > AUTOANALYZER CTD > Conductivity, Temperature, Depth FLOW CYTOMETRY FLUORESCENCE MICROSCOPY > FLUORESCENCE MICROSCOPY FLUOROMETERS > FLUOROMETERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian accessLevel: Public otherRestrictions Cite as: Ortmann, Alice (2014). Biological, physical, and chemical data collected from inshore and shelf surface waters in Alabama from 2009-07 to 2011-12 (NCEI Accession 0117507). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0117507. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Ortmann, A., Metzger, R., Liefer, J., & Novoveska, L. (2011). Grazing and viral lysis vary for different components of the microbial community across an estuarine gradient. Aquatic Microbial Ecology, 65(2), 143–157. https://doi.org/10.3354/ame01544 2011-12-13 publication International DOI Foundation (IDF) https://doi.org/10.3354/ame01544 https://doi.org/10.3354/ame01544 HTTPS https://doi.org/10.3354/ame01544 journal article information Ortmann, AC author Metzger, RC author Liefer, JD author Novoveska, L author Inter-Research Science Center publisher documentDigital Aquat. Microb. Ecol. 65(2) ISSN 0948-3055, ISSN 1616-1564, pp. 143-157 crossReference sciencePaper Ortell, N., & Ortmann, A. (2014). Interactions among members of the microbial loop in an estuary dominated by microzooplankton grazing. Aquatic Microbial Ecology, 72(1), 63–71. https://doi.org/10.3354/ame01685 2014-04-04 publication International DOI Foundation (IDF) https://doi.org/10.3354/ame01685 https://doi.org/10.3354/ame01685 HTTPS https://doi.org/10.3354/ame01685 journal article information Ortell, N author Ortmann, AC author Inter-Research Science Center publisher documentDigital Aquat. Microb. Ecol. 72(1) ISSN 0948-3055, ISSN 1616-1564, pp. 63-71 crossReference sciencePaper Ortmann, Alice. C., & Ortell, N. (2013). Changes in free-living bacterial community diversity reflect the magnitude of environmental variability. FEMS Microbiology Ecology, 87(1), 291–301. https://doi.org/10.1111/1574-6941.12225 2013-10-21 publication International DOI Foundation (IDF) https://doi.org/10.1111/1574-6941.12225 https://doi.org/10.1111/1574-6941.12225 HTTPS https://doi.org/10.1111/1574-6941.12225 journal article information Ortmann, Alice. C. Department of Marine Sciences; University of South Alabama; Mobile AL USA author Ortell, Natalie Department of Marine Sciences; University of South Alabama; Mobile AL USA author Oxford University Press (OUP) publisher documentDigital FEMS Microbiol Ecol 87(1) ISSN 0168-6496, pp. 291-301 crossReference sciencePaper eng; USA utf8 environment oceans biota -88.2116 -88.0113 29.79887 30.4374 2009-07-01 2011-12-31 PI: Dr. Alice Ortmann This data was collected with the FOCAL (Fisheries Oceanography of Coastal Alabama) program. More information about FOCAL can be found at http://focal.disl.org/ This data has been used in the following peer-reviewed publications: A. C. Ortmann, R. C. Metzger, J. D. Liefer, and L. Novoveska. 2011. Grazing and viral lysis vary for different components of the microbial community across an estuarine gradient. Aquatic Microbial Ecology 65:143-157. N. Ortell and A. C. Ortmann (2014) Interactions among members of the microbial loop in an estuary dominated by microzooplankton grazing. Aquatic Microbial Ecology 72:63-71. A. C. Ortmann and N. Ortell. (2014) Changes in free-living bacterial community diversity reflect the magnitude of environmental variability. FEMS Microbiology Ecology 87:291-301. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Originator data format 0.812 https://www.ncei.noaa.gov/archive/accession/0117507 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/117507 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/117507 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0063/0117507/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0117507 v1.1 was published. 2014-04-21T15:36:08Z NCEI Accession 0117507 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0117507/1.1 HTTPS NCEI Accession 0117507 v1.1 published 2014-04-21T15:36:08Z download repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian bottle bottle any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle. CTD CTD Conductivity-Temperature-Depth probe Flow Cytometer Flow Cytometer A method to enumerate bacterial and phytoplankton cells in seawater and estimate their spherical diameter Flow cytometers are laboratory based instruments used to measure cells and particles from aqueous samples. The instrument was initially developed for analysis of Human blood cells for medical purposes, but this technology was adopted by the ocean science community by several investigators, principally Penny Chischolm out of the Massachusetts Institute of Technology, in late 20th century. Since then, the technique has been broadly applied, and it is a unique measurement of microbial populations in the ocean because it provides one at a time measures of cells, to extrapolate features such as fluorescence and cell size. Flow cytometers have been adapted for a number of oceanographic applications such as ship board measurement, and more precise measurement of planktonic fractions. Additionally, the flow cytometer has been adapted for in-situ deployment (see the corresponding nodc instrument code). fluorescence microscope fluorescence microscope Light Stimulating Microscope An optical microscope used to study properties of substances using fluorescence. The specimen is illuminated with light of a specific wavelength (or wavelengths) which is absorbed, causing light of longer wavelengths to be emitted. fluorometer fluorometer fluorometer laboratory analysis laboratory analysis use as an observation type nutrient autoanalyzer nutrient autoanalyzer Laboratory Instrument Nutrient Autoanalyzer is a generic term describing an automated flow-thru system used to conduct analyses of several different nutrients (nitrate, ammonium, orthophosphate, and silicate) simultaneously from a seawater sample. For example: SEAL AutoAnalyzer 3 HR Continuous Segmented Flow Analyzer