gov.noaa.nodc:0000668 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 2025-11-13T20:39:26Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Irish Marine Institute biotoxin, phytoplankton and remote sensing data for Harmful Algal Event monitoring Identification Information (NCEI Accession 0000668) 2014-12-08 publication 2002-02-19 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0000668 NCEI Archive Management System 0000668 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 Shane O'Boyle University of Galway https://www.universityofgalway.ie/ HTTPS University of Galway website Institution web page information resourceProvider Marine Institute Ireland (MI) https://www.marine.ie/ HTTPS Marine Institute Ireland (MI) website Institution web page information resourceProvider Joe Silke Marine Institute Ireland (MI) https://www.marine.ie/ HTTPS Marine Institute Ireland (MI) website Institution web page information principalInvestigator Silke, Joe Irish Marine Institute https://www.marine.ie/ HTTPS Marine Institute Ireland (MI) website Institution web page information author Irish Marine Institute https://www.marine.ie/ HTTPS Marine Institute Ireland (MI) website Institution web page information author Marine Institute Ireland (MI) https://www.marine.ie/ HTTPS Marine Institute Ireland (MI) website Institution web page information contributor University of Galway https://www.universityofgalway.ie/ HTTPS University of Galway website Institution web page information contributor tableDigital The presence of harmful algal species, which produce toxins, pose a significant threat to public health and coastal aquaculture activities. For example, estimated losses due to biotoxin closures have cost the Irish shellfish industry $4 million in 2000. Biotoxins, which have the potential to cause the following human illnesses: diarrhetic, paralytic, amnesic and azaspiracid shellfish poisoning (known as DSP, PSP, ASP and AZP respectively) have been detected in shellfish in Ireland. The toxic phytoplankton species of concern in Irish waters are: Dinophysis spp. (DSP), Alexandrium spp. (PSP), and Pseudo-nitzschia spp (ASP). The only locations where blooms of A. tamarense and accumulation of toxins occur are Cork Harbour and Belfast Lough. The marine source of AZP has still to be confirmed. The Marine Environment and Health Services Division of the Irish Marine Institute is responsible for monitoring water samples collected from shellfish production areas for the presence of potentially harmful algal species. This information is used by the Marine Institute as an early warning of potential harmful algal events, as an indicator of what type of toxin analysis needs to be carried out and as scientific evidence to supplement the results of toxin analysis of shellfish. However, due to a variety of reasons, it has not been possible to demonstrate a direct correlation between numbers of potentially toxic phytoplankton in water samples and the presence of toxins in shellfish. Therefore, phytoplankton counts on their own are not used to decide the toxicity status of shellfish production areas. Symptoms of DSP appear after 30 mins to a few hrs of consumption and include nausea, vomiting, diarrhea and abdominal pain. Ingestion of shellfish containing the PSP biotoxin acts quickly (within 30 mins of consumption) and can cause numbness, and tingling of the lips, tongue, face and extremities, difficulty in talking, breathing, swallowing and muscle spasms. In severe cases death can occur due to respiratory paralysis. The Biotoxin Unit of the Marine Institute regularly monitors shellfish for the presence of toxins using both mouse bioassays and analytical chemistry methods. Production areas are closed for shellfish harvesting if the mouse bioassays are positive, i.e., 2 out of the 3 mice die within 24 hours of being injected intraperitonally with a Di Ethyl Ether (Note: Di Ethyl Ether replaced Acetone as the chemical extractant in 2001) extraction of toxins from the homogenised shellfish hepatopancreas. In addition, the use of remote sensing data has been identified as one of the key components of the Marine Institute's proposed HAE forecasting system. To evaluate the application of this technology, SeaWiFS images that have been compiled as part of the EU funded BIOCOLOR project by the Remote Sensing Data Analysis Service (RSDAS) in Plymouth, U.K., have been re-analysed by NOAA/NOS and Marine Institute personnel. The re-analysed images were taken in 1998 during a large bloom of Karenia mikimotoi formerly known as Gyrodinium aureolum) that extended across the northern Celtic Sea and a region of the Irish shelf adjacent to the large bays of southwestern Ireland. The purpose of the Marine Institute's phytoplankton monitoring programme is to determine the distribution of potentially harmful phytoplankton species in shellfish production areas around the coast of Ireland. This information is used as an early warning of potential harmful algal events, as an indicator of what type of toxin analysis needs to be caried out and as scientific evidence to supplement the results of toxin analysis of shellfish. 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:0000668 Preview graphic PNG 0000668 NCEI ACCESSION NUMBER 2001-11-27 publication BIOASSAY PHYTOPLANKTON SPECIES COUNT PER SAMPLE theme NODC DATA TYPES THESAURUS laboratory analysis microscope instrument NODC INSTRUMENT TYPES THESAURUS biological chemical plankton satellite photography theme NODC OBSERVATION TYPES THESAURUS Marine Institute Ireland University of Galway dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Marine Institute Ireland dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coastal Waters of Ireland 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 IE/MARINE > Marine Institute, Ireland dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 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 > PHYTOPLANKTON theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 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 DSP Harmful Algal Species Marine Mouse Bioassay Ocean Color PSP Remote Sensing Seawifs Toxic Phytoplankton Toxicity theme Originator Keywords MICROSCOPES > MICROSCOPES instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 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 place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 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: Silke, Joe; Irish Marine Institute (2014). Irish Marine Institute biotoxin, phytoplankton and remote sensing data for Harmful Algal Event monitoring Identification Information (NCEI Accession 0000668). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0000668. 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. eng; USA utf8 environment oceans biota -14 -5 50 53 1989-01-11 2001-11-08 Additional Contact Information: Mr. Joe Silke, Marine Biotoxin Unit Team Leader, Marine Institute, Abbotstown, Dublin 15, Ireland. Phone #: ++-353-1-8228267, E-mail: joe.silke@marine.ie Additional Contact Information: Dr. Varis Ransibrahmanakul, NOAA, National Ocean Services, Silver Spring, Maryland, US. Phone #: 301-713-3028 E-mail: varis.ransi@noaa.gov 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 110.112 https://www.ncei.noaa.gov/archive/accession/0000668 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/668 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/668 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0071/0000668/ 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 0000668 v1.1 was published. 2014-12-08T21:29:36Z NCEI Accession 0000668 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0000668/1.1 HTTPS NCEI Accession 0000668 v1.1 published 2014-12-08T21:29:36Z 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 laboratory analysis laboratory analysis use as an observation type microscope microscope instrument is used in lab analyses A microscope is an instrument used to see objects that are too small for the naked eye.