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Short Citation:
Office for Coastal Management, 2022: Harmful Algal Blooms, https://www.fisheries.noaa.gov/inport/item/66143.

Item Identification

Title: Harmful Algal Blooms
Status: Completed
Publication Date: 2019-10-25
Abstract:

Multiple Harmful Algae Bloom (HAB) (K. brevis) data sets were obtained for this data layer, including Harmful Algal BloomS Observing System data (HABSOS) from NCEI (1953-2018) and the NOAA HAB Operational Forecast System Dataset (2007-2018). Data includes samples from Texas Parks and Wildlife Department (TPWD) the Louisiana Department of Health and Hospitals, Florida Fish and Wildlife Conservation Commission, Florida Fish and Wildlife Research Institute (FWRI), and the HAB Monitoring Database. Data were combined and reviewed for erroneous entries. Duplicate data from the resulting database were deleted, leaving a total of 155,307 observations. For the purpose of this K. brevis layer, only data from 2000-2018 were used due to sampling biases. An 8 square kilometer hexagonal grid was created covering the Gulf of Mexico and eastern Florida. Each year between 2000-2018 was evaluated separately. If a grid cell contained an observation that registered a value of over 100,000 cells/L (the lethal toxicity level for finfish), the grid cell received a value of '1‘. All other grid cells received a value of '0’ to represent observations below the lethal level of concern to fish. After all years were evaluated, the values for each year were totaled to obtain a resulting frequency value for that grid cell, representing the number of years that grid cell had values greater than or equal to 100,000 cells/L for the years 2000-2018.

Purpose:

To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the National Environmental Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act.

Supplemental Information:

References for the 100,000 cells/l lethal concentration:

Quick JA, Henderson GE (1974) Effects of Gymnodinium breve red tide on fishes and birds:a preliminary report on behavior, anatomy, hematology and histopathology. In:Amborski RL, Hood MA, Miller RR (eds) Proceedings of the Gulf Coast regional symposium on diseases of aquatic animals. Louisiana Sea Grant, Louisiana State University, Baton Rouge, LA, p 85−113;

Landsberg JH, Steidinger KA (1998) A historical review of Gymnodinium breve red tides implicated in mass mortalities of the manatee (Trichechus manatus lati - rostris) in Florida, USA. In:Reguera B, Blanco J, Fernandez ML, Wyatt T (eds) Harmful Algae. Xunta de Galicia and Intergovernmental Oceanographic Commission of UNESCO, Santiago de Compostela, p 97−100;

Gannon DP, Berens McCabe EJ, Camilleri SA, Gannon JG and others (2009) Effects of Karenia brevis harmful algal blooms on nearshore fish communities in southwest Florida. Mar Ecol Prog Ser 378: 171−186

The native coordinate system for this layer is NAD 1983 (ESPG: 4269). Please note: all MarineCadastre.gov data served by the NOAA Office for Coastal Management and hosted through Esri REST services are in the WGS 1984 Web Mercator Auxiliary Sphere (EPSG: 3857) projection.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT
UNCONTROLLED
ISO 19115 Topic Category biota
ISO 19115 Topic Category oceans
None algae
None biophysical
None risk

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
UNCONTROLLED
None Alabama
None Florida
None Gulf of Mexico
None Louisiana
None Mississippi
None Outer Continental Shelf
None Territorial Sea
None Texas
None United States of America

Physical Location

City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Annually
Distribution Liability:

https://www.marinecadastre.gov/about/disclaimer.html

Data Set Credit: NOAA National Centers for Coastal Ocean Science, Bureau of Ocean Energy Management, NOAA Office for Coastal Management

Support Roles

Distributor

CC ID: 1115482
Date Effective From: 2018-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1115498
W° Bound: -97.522273
E° Bound: -79.909497
N° Bound: 31.173994
S° Bound: 23.999996

Access Information

Security Class: Unclassified
Data Use Constraints:

For coastal and ocean planning

Distribution Information

Distribution 1

CC ID: 1115484
Download URL: https://marinecadastre.gov/downloads/data/mc/HarmfulAlgalBloom.zip
Distributor:

Distribution 2

CC ID: 1115486
Download URL: https://marinecadastre.gov/oceanreports/
Distributor:
Description:

Ocean Reports

Data Quality

Accuracy:

The attributes in this dataset are believed to be accurate.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.

Conceptual Consistency:

These data are believed to be logically consistent. Geometry is topologically clean.

Lineage

Sources

Karenia brevis HAB observation data (2000 - 2018)

CC ID: 1115492
Contact Name: NOAA's National Centers for Environmental Information
Citation URL: https://oceanservice.noaa.gov/hazards/hab/
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

Data download

Karenia brevis HAB observation data (2000 - 2018)

CC ID: 1115495
Contact Name: Texas Parks and Wildlife Department (TPWD)
Citation URL: https://tpwd.texas.gov/landwater/water/environconcerns/hab/redtide/status.phtml
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

Data download

Karenia brevis HAB observation data (2000 - 2018)

CC ID: 1115494
Contact Name: Louisiana Department of Health and Hospitals
Citation URL: https://healthfinder.gov/FindServices/Organizations/Organization.aspx?code=HR0941
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

Data download

Karenia brevis HAB observation data (2000 - 2018)

CC ID: 1115493
Contact Name: Florida Fish and Wildlife Research Institute (FWRI)
Citation URL: https://myfwc.com/research/redtide/statewide/
Citation URL Name: Source Online Linkage
Citation URL Description:

URL where the source data were originally accessed.

Source Contribution:

Data download

Process Steps

Process Step 1

CC ID: 1115496
Description:

(1) Downloaded HABSOS data from National Centers for Environmental Information (NCEI) and imported the CSV to a shapefile in ArcGIS.

(2) Merged these data with data provided by Karen Kavanaugh (Karen.Kavanaugh@noaa.gov) of NOAA CO-OPS (including Louisiana Dept of Health and Hospitals and Texas Parks & Wildlife Department) and data provided by the Florida Fish and Wildlife Commission (FWRI). Data were requested from FWRI by emailing HABdata@MyFWC.com.

(3) Data were QA/QC'ed and attributes were re-worked to fit with all of the data provided. For example, the data were re-categorized so the HABs categories ('Category' attribute) all matched the HABSOS categorization scheme. Additionally, all absent or not present data observations were categorized as 'Not Present'.

(4) Some errors were found in provided data sets, and follow-up conversations were conducted with data contacts through all data sources. For the HABSOS dataset, we contacted NCEI and were put in touch with the data point-of-contact for the dataset (NCEI Accession 0120767). The errors found in the HABSOS dataset were fixed and the corrected and updated data are now archived with NCEI.

(5) Additional attributes were added for ease of data analysis. For example, the 'Presence' binary attribute was added in order to easily indicate presence or absence of K. brevis.

(6) Data duplicates were removed by using ArcGIS tools to identify and delete duplicates based on the following attributes: Sample Date, Sample Depth, Cell Count, Latitude, and Longitude.

(7) The data were clipped to 1/4 mile inland due to confidence of the data and the lack of relevance to freshwater systems.

(8) Clipped out only years 2000-2018 for data analysis (“HABS_2000_2018” data layer) after looking at sampling distribution from 1954 to 2018. Sampling was irregularly conducted until about 2000, so for the sake of analysis we used the 2000 to 2018 temporal period as more regular sampling was occurring. The final point data set was complete.

(9) Lastly, an 8 square kilometer hexagonal grid was created covering the Gulf of Mexico and eastern Florida. Each year between 2000-2018 was evaluated separately, and if a grid cell contained an observation that registered a value of over 100,000 cells/L (the lethal toxicity level for finfish) then that grid cell obtained a value of '1‘. All other grid cells received a value of '0’ to represent observations below the lethal level of concern to fish. After all years were evaluated, the values for each year were totaled to obtain a resulting frequency value for that grid cell, representing the number of years that grid cell had values ≥100,000 cells/L for the years 2000-2018. This layer indicates the frequency of K. brevis blooms in each 8 square kilometer area over time.

Process Date/Time: 2019-01-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity Harmful Algal Blooms (K.brevis)

Catalog Details

Catalog Item ID: 66143
GUID: gov.noaa.nmfs.inport:66143
Metadata Record Created By: Brianna Key
Metadata Record Created: 2021-12-22 03:45+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2021-12-22
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-12-22
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-12-22