Long-term Ecosystem Dynamics in Coastal Lagoons of Perdido Bay, Florida: Nutrients and Water Quality (2000-present)
Metadata:
- Identification_Information:
- Citation:
- Citation_Information:
- Originator:
- DISL: Ecosystems Lab
- Publication_Date:
- Unpublished material
- Title:
- Long-term Ecosystem Dynamics in Coastal Lagoons of Perdido Bay, Florida: Nutrients and Water Quality (2000-present)
- Description:
- Abstract:
- Nutrients and water quality have been measured in three lagoonal environments in Perdido Bay, Florida, since Dec 2000. The data include dissolved inorganic nitrogen, dissolved organic nitrogen, phosphate, water column chlorophyll, benthic chlorophyll, and particulate organic matter (POM).
- Purpose:
- To improve our understanding of lagoonal environments, and to improve our ability to create effective policies of environmentally-sustainable development and use of coastal watersheds by humans. The data are part of an ongoing survey of the physical, chemical and biological variables of three distinct lagoonal environments in Perdido Bay, Florida. The three lagoons cover a wide gradient of human pressure, from a pristine lagoon to a lagoon with a moderately developed watershed to a lagoon with a highly developed watershed, thereby allowing us to make inferences as to how human utilization of watersheds affects the health of coastal lagoons and services offered to humankind and wildlife.
- Time_Period_of_Content:
- Time_Period_Information:
- Range_of_Dates/Times:
- Beginning_Date:
- 20001212
- Ending_Date:
- Present
- Currentness_Reference:
- ground condition
- Status:
- Progress:
- In work
- Maintenance_and_Update_Frequency:
- Monthly
- Spatial_Domain:
- Bounding_Coordinates:
- West_Bounding_Coordinate:
- -87.469
- East_Bounding_Coordinate:
- -87.403
- North_Bounding_Coordinate:
- 30.313
- South_Bounding_Coordinate:
- 30.305
- Keywords:
- Theme:
- Theme_Keyword_Thesaurus:
- None
- Theme_Keyword:
- dissolved organic nitrogen
- Theme_Keyword:
- dissolved inorganic nitrogen
- Theme_Keyword:
- total dissolved nitrogen
- Theme_Keyword:
- nitrate
- Theme_Keyword:
- nitrite
- Theme_Keyword:
- ammonia
- Theme_Keyword:
- dissolved inorganic phosphate
- Theme_Keyword:
- water column chlorophyll
- Theme_Keyword:
- benthic chlorophyll
- Theme_Keyword:
- particulate organic matter
- Theme_Keyword:
- water-column
- Theme_Keyword:
- nutrient content
- Theme_Keyword:
- coastal lagoon
- Theme_Keyword:
- eutrophication
- Theme_Keyword:
- human pressure
- Theme_Keyword:
- watershed
- Theme_Keyword:
- anthropogenic
- Theme_Keyword:
- water quality
- Theme:
- Theme_Keyword_Thesaurus:
- ISO 19115 Topic Category
- Theme_Keyword:
- environment
- Theme_Keyword:
- inlandWaters
- Theme_Keyword:
- oceans
- Place:
- Place_Keyword_Thesaurus:
- None
- Place_Keyword:
- Gongora Canal
- Place_Keyword:
- State Park
- Place_Keyword:
- Kee's Bayou
- Place_Keyword:
- Perdido Bay
- Place_Keyword:
- Florida
- Place_Keyword:
- northern Gulf of Mexico
- Place_Keyword:
- Dauphin Island Sea Lab
- Place_Keyword:
- DISL
- Access_Constraints:
- Permission to access these data must be given by Dr. Just Cebrian of the Dauphin Island Sea Lab.
- Use_Constraints:
- Acknowledgment of the DISL Ecosystems Lab, the National Science Foundation (NSF), the NOAA National Coastal Data Development Center, the Mississippi-Alabama Sea Grant Consortium and the Alabama Center for Estuarine Studies is required in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of these data. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of these data, based on the description of appropriate/inappropriate uses described in the metadata document. The DISL Ecosystems Lab makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. The DISL Ecosystems Lab cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. These data are not legal documents and are not to be used as such.
- Point_of_Contact:
- Contact_Information:
- Contact_Person_Primary:
- Contact_Person:
- Dr. Just Cebrian
- Contact_Organization:
- DISL: Ecosystems Lab
- Contact_Position:
- Principal Investigator
- Contact_Address:
- Address_Type:
- mailing and physical
- Address:
- 101 Bienville Blvd.
- City:
- Dauphin Island
- State_or_Province:
- Al
- Postal_Code:
- 36528
- Country:
- USA
- Contact_Voice_Telephone:
- 251-861-2141 ext. 7568 or 7564
- Contact_Electronic_Mail_Address:
- jcebrian@disl.org
- Hours_of_Service:
- 8-5:00 CST
- Contact_Instructions:
- Please email Dr. Just Cebrian for further information.
- Native_Data_Set_Environment:
- The working database is Microsoft Access. Data are made available via export to Microsoft Excel.
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- Data_Quality_Information:
- Logical_Consistency_Report:
- not applicable
- Completeness_Report:
- Data for this project were collected from 5 Sep 2000 to the present, however sampling techniques and data collection have not remained consistent among sampling events.
- Lineage:
- Process_Step:
- Process_Description:
- Discrete water samples were taken at the following points within each lagoon: near the mouth, near the upstream edge, on both sides of the lagoon, and at two additional random points. Dissolved nitrogen species were determined using colorimetric techniques on a Skalar autoanalyzer. Particulate organic matter (POM) was calculated by loss on ignition (LOI).
|
For benthic chlorophyll, we sampled the sediment using a 2.5 cm diameter corer and sliced the top 1 cm sediment layer into a centrifuge tube, which was stored on ice and transported to the lab. In the lab, samples were frozen at -80 degrees C until processed. Upon thawing, chlorophyll was extracted for a 24 h period with 25.0 ml of acetone (Strickland JDH, Parsons TR. 1972. A practical handbook of seawater analysis, 2nd edn. Bulletin of the Fisheries Research Board of Canada 167: 1-310). Chl a concentrations were measured fluorometrically with a Turner Designs Model TD-700 fluorometer using acidification (1N HCl) to correct for the presence of phaeopigments for samples collected before 2010, and with the Welshmeyer protocol extraction (Welschmeyer, NA. 1994. Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments. Limnology and Oceanography 39(8): 1985-1992) for samples collected in 2010 and later. Chlorophyll values were standardized to sediment area (mg chl a m-2 of sediment).
|
The same fluorometric methods were used to determine water column particulate chl a.
- Process_Date:
- Not complete
- Process_Contact:
- Contact_Information:
- Contact_Organization_Primary:
- Contact_Organization:
- DISL: Ecosystems Lab
- Contact_Person:
- Josh Goff
- Contact_Position:
- research technician
- Contact_Address:
- Address_Type:
- mailing and physical
- Address:
- 101 Bienville Boulevard
- City:
- Dauphin Island
- State_or_Province:
- Alabama
- Postal_Code:
- 36528
- Contact_Voice_Telephone:
- 251-861-2141 x7564
- Contact_Electronic_Mail_Address:
- jgoff@disl.org
Back To Index
- Entity_and_Attribute_Information:
- Detailed_Description:
- Entity_Type:
- Entity_Type_Label:
- Perdido Lagoon Nutrients
- Entity_Type_Definition:
- Water quality and nutrients measured in the water column of three lagoons of Perdido Bay, Florida from 2000 to present. Six spreadsheets are included: raw data for nitrogen and phosphate, raw data for particulate organic matter (POM), data reorganized by date and corrected for outliers for nitrogen and phosphate, data reorganized by date and corrected for outliers for POM, figures for DIN and TDN concentrations over time, and DIN mean and standard error.
- Entity_Type_Definition_Source:
- DISL: Ecosystems Lab
- Attribute:
- Attribute_Label:
- event ID
- Attribute_Definition:
- An identification number for the sampling event.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 1
- Range_Domain_Maximum:
- infinite
- Attribute:
- Attribute_Label:
- site
- Attribute_Definition:
- Sampling location.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Enumerated_Domain:
- Enumerated_Domain_Value:
- GC
- Enumerated_Domain_Value_Definition:
- Gongora Canal at latitude 30.305 N longitude 87.424 W. Residential development on northern and eastern sides (bulkheaded, in 2008 a new stretch of bulkheads was put in place), marsh on southern and western sides. Small, slightly deeper and more turbid. No seagrass. Sediment sandy (mouth) to muddy (upstream).
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Enumerated_Domain_Value:
- KB
- Enumerated_Domain_Value_Definition:
- Kees Bayou at latitude 30.313 N longitude 87.469 W. Developed on the northern and eastern sides, marsh on the southern and western sides. Bottom sediment is finer than that of State Park. Originally a small fraction was covered by patches of Halodule wrightii. Now larger mixed bed with Ruppia maritima.
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Enumerated_Domain_Value:
- SP
- Enumerated_Domain_Value_Definition:
- State Park at latitude 30.308 N longitude 87.403 W. Most pristine site, entirely surrounded by salt marsh (predominantly Juncus roemerianus) and maritime forest with no human development. Bottom predominantly covered by patches of Halodule wrightii, the rest is sandy sediment.
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Attribute:
- Attribute_Label:
- date
- Attribute_Definition:
- Date of sampling.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 12 Dec 2000
- Range_Domain_Maximum:
- present
- Attribute:
- Attribute_Label:
- replicate
- Attribute_Definition:
- Sampling replicate.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 1
- Range_Domain_Maximum:
- 7
- Attribute:
- Attribute_Label:
- NO3 + NO2
- Attribute_Definition:
- Concentration of nitrate plus concentration of nitrite.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 16.86
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- NO2
- Attribute_Definition:
- Concentration of nitrite.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 2.26
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- NH4
- Attribute_Definition:
- Concentration of ammonia.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 20.75
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- PO4
- Attribute_Definition:
- Concentration of phosphate.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.01
- Range_Domain_Maximum:
- 2.55
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- TDN
- Attribute_Definition:
- Total dissolved nitrogen concentration, as measured by the Skalar autoanalyzer.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 4.03
- Range_Domain_Maximum:
- 108.31
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- TDN reagent blank
- Attribute_Definition:
- Concentration of the reagent blank as measured by the Skalar autoanalyzer, to be subtracted from the instrument's measure of TDN.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -5.67
- Range_Domain_Maximum:
- 4.71
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- TDN corrected
- Attribute_Definition:
- Concentration of TDN after subtracting the reagent blank.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 10.14
- Range_Domain_Maximum:
- 109.22
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- DIN
- Attribute_Definition:
- Concentration of dissolved inorganic nitrogen.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 35.87
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- DON
- Attribute_Definition:
- Concentration of dissolved organic nitrogen.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 8.58
- Range_Domain_Maximum:
- 90.04
- Attribute_Units_of_Measure:
- micromole per liter
- Attribute:
- Attribute_Label:
- run data / source file
- Attribute_Definition:
- Filename for the original raw data.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- This information is an internal reference for the Ecosystems Lab.
- Attribute_Measurement_Frequency:
- As needed
- Attribute:
- Attribute_Label:
- notes
- Attribute_Definition:
- Additional miscellaneous information about the data.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- Reasons for why data are missing, issues during processing, etc. are noted here.
- Attribute_Measurement_Frequency:
- As needed
- Attribute:
- Attribute_Label:
- volume filtered
- Attribute_Definition:
- Volume of water sample filtered for total suspended solids, to determine concentration of particulate organic matter (POM).
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 200
- Range_Domain_Maximum:
- 400
- Attribute_Units_of_Measure:
- milliliter
- Attribute:
- Attribute_Label:
- post filtered dry weight
- Attribute_Definition:
- Weight of filter after water sample has been filtered and filter has dried.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.1263
- Range_Domain_Maximum:
- 1.477
- Attribute_Units_of_Measure:
- gram
- Attribute:
- Attribute_Label:
- muffled dry weight
- Attribute_Definition:
- Weight of filter after sample has been placed in a muffle oven (at 500 degrees Celsius for 4 hours).
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.1255
- Range_Domain_Maximum:
- 1.4735
- Attribute_Units_of_Measure:
- gram
- Attribute:
- Attribute_Label:
- POM
- Attribute_Definition:
- Particulate organic matter. This is calculated from the amount of weight that the filter lost in the muffle oven.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 39.5
- Attribute_Units_of_Measure:
- grams per liter
- Attribute:
- Attribute_Label:
- burn date
- Attribute_Definition:
- Date that the POM sample filter was placed in the muffle oven.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 6 Apr 2011
- Range_Domain_Maximum:
- 31 Oct 2011
- Detailed_Description:
- Entity_Type:
- Entity_Type_Label:
- Perdido Lagoon Chlorophyll
- Entity_Type_Definition:
- Chlorophyll a measured in the water column and surface sediments of three lagoons of Perdido Bay, Florida from 2000 to present. Six spreadsheets are included: Benthic before 2010, Benthic 2010 and later, Benthic combined, H20 before 2010, H20 2010 and later, H20 combined. Chlorophyll samples analyzed before 2010 were measured with the acidification protocol extraction (Strickland JDH, Parsons TR. 1972. A practical handbook of seawater analysis, 2nd ed. Bulletin of the Fisheries Research Board of Canada 167: 1-310): overnight in 90% acetone (no longer than 24 hours). Samples analyzed after 2010 were measured with the Welshmeyer protocol extraction (Welschmeyer, NA. 1994. Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments. Limnology and Oceanography 39(8): 1985-1992): overnight in 90% acetone (no longer than 24 hours). Benthic chlorophyll concentration was used as an indicator of benthic microalgal biomass. Water column chlorophyll concentration is a proxy for phytoplankton.
- Entity_Type_Definition_Source:
- DISL: Ecosystems Lab
- Attribute:
- Attribute_Label:
- F-factor
- Attribute_Definition:
- A correction factor applied to final measurements by the fluorometer when using the acidification protocol.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 1.89065
- Range_Domain_Maximum:
- 2.059
- Attribute:
- Attribute_Label:
- Sample
- Attribute_Definition:
- Sample number.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 1
- Range_Domain_Maximum:
- 10
- Attribute:
- Attribute_Label:
- Station
- Attribute_Definition:
- Sampling location.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Enumerated_Domain:
- Enumerated_Domain_Value:
- GC
- Enumerated_Domain_Value_Definition:
- Gongora Canal at latitude 30.305 N longitude 87.424 W. Residential development on northern and eastern sides (bulkheaded, in 2008 a new stretch of bulkheads was put in place), marsh on southern and western sides. Small, slightly deeper and more turbid. No seagrass. Sediment sandy (mouth) to muddy (upstream).
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Enumerated_Domain_Value:
- KB
- Enumerated_Domain_Value_Definition:
- Kees Bayou at latitude 30.313 N longitude 87.469 W. Developed on the northern and eastern sides, marsh on the southern and western sides. Bottom sediment is finer than that of State Park. Originally a small fraction was covered by patches of Halodule wrightii. Now larger mixed bed with Ruppia maritima.
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Enumerated_Domain_Value:
- SP
- Enumerated_Domain_Value_Definition:
- State Park at latitude 30.308 N longitude 87.403 W. Most pristine site, entirely surrounded by salt marsh (predominantly Juncus roemerianus) and maritime forest with no human development. Bottom predominantly covered by patches of Halodule wrightii, the rest is sandy sediment.
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Attribute:
- Attribute_Label:
- date
- Attribute_Definition:
- Date of sampling.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 5 Sep 2000
- Range_Domain_Maximum:
- present
- Attribute:
- Attribute_Label:
- Fo
- Attribute_Definition:
- Fluorometer value before the sample is placed in the unit.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -0.046
- Range_Domain_Maximum:
- 930
- Attribute_Units_of_Measure:
- angstrom
- Attribute:
- Attribute_Label:
- Fa
- Attribute_Definition:
- Fluorometer value after the sample is placed in the unit.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -0.038
- Range_Domain_Maximum:
- 484
- Attribute_Units_of_Measure:
- angstrom
- Attribute:
- Attribute_Label:
- extract vol
- Attribute_Definition:
- Volume of sample extracted and placed in the cuvette, which is then placed in the flourometer.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 10
- Range_Domain_Maximum:
- 30
- Attribute_Units_of_Measure:
- milliliter
- Attribute:
- Attribute_Label:
- Dilution
- Attribute_Definition:
- Dilution factor. Amount of additional water added to the sample before measurement.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.5
- Range_Domain_Maximum:
- 400
- Attribute:
- Attribute_Label:
- sample surface (cm2)
- Attribute_Definition:
- For benthic samples, size of surface area sampled.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 4.909
- Range_Domain_Maximum:
- 4.909
- Attribute_Units_of_Measure:
- square centimeters
- Attribute:
- Attribute_Label:
- filtered vol
- Attribute_Definition:
- For water column samples, the volume of water filtered.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 50
- Range_Domain_Maximum:
- 500
- Attribute_Units_of_Measure:
- milliliters
- Attribute:
- Attribute_Label:
- value fluorometer
- Attribute_Definition:
- Fluorometer value when using the Welshmeyer protocol.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 5.79
- Range_Domain_Maximum:
- 217.93
- Attribute_Units_of_Measure:
- angstrom
- Attribute:
- Attribute_Label:
- Chloro-a (mg/m2)
- Attribute_Definition:
- Concentration of chlorophyll a for benthic samples.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0
- Range_Domain_Maximum:
- 695.755
- Attribute_Units_of_Measure:
- milligrams per square meter
- Attribute:
- Attribute_Label:
- Chloro-a (ug/l)
- Attribute_Definition:
- Concentration of chlorophyll a for water column samples.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- -0.0015912
- Range_Domain_Maximum:
- 51.80381
- Attribute_Units_of_Measure:
- micrograms per liter
- Attribute:
- Attribute_Label:
- notes
- Attribute_Definition:
- Additional miscellaneous information about the data.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- Reasons for why data are missing, issues during processing, etc. are noted here.
- Attribute_Measurement_Frequency:
- As needed
- Attribute:
- Attribute_Label:
- analyzed by
- Attribute_Definition:
- First name of the individual that processed the sample through the fluorometer.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Unrepresentable_Domain:
- Lab personnel are typically graduate students.
- Attribute_Measurement_Frequency:
- As needed
- Attribute:
- Attribute_Label:
- ByVar1
- Attribute_Definition:
- Sampling location.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Enumerated_Domain:
- Enumerated_Domain_Value:
- GC
- Enumerated_Domain_Value_Definition:
- Gongora Canal at latitude 30.305 N longitude 87.424 W. Residential development on northern and eastern sides (bulkheaded, in 2008 a new stretch of bulkheads was put in place), marsh on southern and western sides. Small, slightly deeper and more turbid. No seagrass. Sediment sandy (mouth) to muddy (upstream).
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Enumerated_Domain_Value:
- KB
- Enumerated_Domain_Value_Definition:
- Kees Bayou at latitude 30.313 N longitude 87.469 W. Developed on the northern and eastern sides, marsh on the southern and western sides. Bottom sediment is finer than that of State Park. Originally a small fraction was covered by patches of Halodule wrightii. Now larger mixed bed with Ruppia maritima.
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Enumerated_Domain_Value:
- SP
- Enumerated_Domain_Value_Definition:
- State Park at latitude 30.308 N longitude 87.403 W. Most pristine site, entirely surrounded by salt marsh (predominantly Juncus roemerianus) and maritime forest with no human development. Bottom predominantly covered by patches of Halodule wrightii, the rest is sandy sediment.
- Enumerated_Domain_Value_Definition_Source:
- DISL: Ecosystems Lab
- Attribute:
- Attribute_Label:
- ByVar2
- Attribute_Definition:
- Date of sampling.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 21 Sep 2000
- Range_Domain_Maximum:
- present
- Attribute:
- Attribute_Label:
- Mean1
- Attribute_Definition:
- Average chlorophyll a concentration over all replicate samples per lagoon per sampling date.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.8634
- Range_Domain_Maximum:
- 345.202
- Attribute_Units_of_Measure:
- milligrams per meter squared, or micrograms per liter, depending on whether it was a benthic or water column sample.
- Attribute:
- Attribute_Label:
- SEMean1
- Attribute_Definition:
- Standard error of chlorophyll a concentration over all replicate samples per lagoon per sampling date.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 0.03176
- Range_Domain_Maximum:
- 59.3484
- Attribute_Units_of_Measure:
- milligrams per meter squared, or micrograms per liter, depending on whether it was a benthic or water column sample.
- Attribute:
- Attribute_Label:
- N1
- Attribute_Definition:
- Number of replicate samples per lagoon per sampling date.
- Attribute_Definition_Source:
- DISL: Ecosystems Lab
- Attribute_Domain_Values:
- Range_Domain:
- Range_Domain_Minimum:
- 3
- Range_Domain_Maximum:
- 10
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- Metadata_Reference_Information:
- Metadata_Date:
- 20150514
- Metadata_Contact:
- Contact_Information:
- Contact_Organization_Primary:
- Contact_Organization:
- Dauphin Island Sea Lab
- Contact_Position:
- Data Management Specialist
- Contact_Address:
- Address_Type:
- mailing and physical
- Address:
- 101 Bienville Blvd.
- City:
- Dauphin Island
- State_or_Province:
- Al
- Postal_Code:
- 36528
- Country:
- USA
- Contact_Voice_Telephone:
- 251-861-2141
- Contact_Electronic_Mail_Address:
- metadata@disl.org
- Hours_of_Service:
- 8-5:00 CST
- Contact_Instructions:
- Please email the metadata specialist for further information.
- Metadata_Standard_Name:
- FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version:
- FGDC-STD-001.1-1999
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