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Physical, chemical, and biological water quality monitoring data to support detection of Harmful Algal Blooms (HABs) in Saginaw Bay, Lake Huron, Great Lakes collected by the Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research since 2012

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 13, 2025 | Last Modified: 2024-12-19T00:00:00.000+00:00
Blooms of nuisance and toxic cyanobacteria, referred to as cyanobacteria harmful algal blooms (cHABs), occur seasonally in Saginaw Bay, Lake Huron, and pose a threat to human health, affect the quality of life, and significantly degrade the ecosystem. NOAA Great Lakes Environmental Research Laboratory and the Cooperative Institute for Great Lakes Research (CIGLR), University of Michigan, started regular water quality monitoring of Saginaw Bay, Lake Huron in 2012. Since that time the monitoring effort has expanded to incorporate additional parameters and sample locations. Physical, chemical, and biological water quality data were collected during repeated sampling trips to a set of stations before, during, and after HAB events (from May - October). Data for these discrete sampling events include: Secchi disk depth, Conductivity, Temperature and Depth (CTD), CTD specific conductivity, CTD beam attenuation, CTD beam transmission, CTD dissolved oxygen, CTD photosynthetically active radiation, turbidity, particulate microcystin, dissolved microcystin, extracted phycocyanin, extracted chlorophyll-a, total phosphorus, total dissolved phosphorus, soluble reactive phosphorus, ammonia, nitrate + nitrite, urea, particulate organic carbon, particulate organic nitrogen, dissolved organic carbon, chromophoric dissolved organic material absorbance at 400 nm, total suspended solids, and volatile suspended solids. The bulk water quality parameters were analyzed via established techniques and procedures for routine water quality monitoring and analysis (APHA 1992, 1998, 2017). This research was funded by the Great Lakes Restoration Initiative (GLRI) to support the projects “Decision Support Tools to Link Predictions to HABs and Source Water Protection”, Synthesis Observation and Response (SOAR), and Real-time Environmental Coastal Observation Network (ReCON).

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0189250 0209220 0276093 0299792 AMMONIA (NH3) Attenuation/Transmission CHLOROPHYLL CHLOROPHYLL A CHLOROPHYLL A CONCENTRATION Chromophoric Dissolved Organic Matter (CDOM) CONDUCTIVITY DEPTH - SENSOR diatom DISSOLVED ORGANIC CARBON DISSOLVED OXYGEN LIGHT TRANSMISSION PARTICULATE ORGANIC CARBON PARTICULATE ORGANIC NITROGEN (PON) PHOTOSYNTHETIC ACTIVE RADIATION (PAR) Secchi depth suspended solids TOTAL PHOSPHORUS turbidity UREA WATER TEMPERATURE CTD fluorometer PAR Sensor Secchi disk temperature probe in situ laboratory analyses NOAA Great Lakes Environmental Research Laboratory University of Michigan Cooperative Institute for Great Lakes Research NOAA Great Lakes Environmental Research Laboratory Great Lakes observationPlatform DOC/NOAA/OAR/GLERL > Great Lakes Environmental Research Laboratory, OAR, NOAA, U.S. Department of Commerce Great Lakes Restoration Initative Great Lakes Restoration Initiative EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SUSPENDED SOLIDS EARTH SCIENCE > OCEANS > OCEAN OPTICS EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION EARTH SCIENCE > OCEANS > OCEAN OPTICS > SECCHI DEPTH EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY BEAM ATTENUATION CHLOROPHYLL A - extracted bluegreen colored dissolved organic material absorbance at 400nm cryptophyta datetime depth diatoms dissolved microcystin extracted phycocyanin green_algae measurement_numb nitrate + nitrite content particulate microcystin sample depth sample depth (category) soluble reactive phosphorus total dissolved phosphorus total suspended solids total_concentration transmission volatile suspended solids yellow_substances CTD > Conductivity, Temperature, Depth FLUOROMETERS > FLUOROMETERS PAR SENSORS > Photosynthetically Active Radiation Sensors SECCHI DISKS > SECCHI DISKS TEMPERATURE PROBES > TEMPERATURE PROBES Abraxis ELISA kit Carlo-Erba model 1110 CHN Elemental Analyzer Hach 2100AN Turbidimeter Perkin Elmer UV/VIS spectrophotometer Lambda 35 SBE 19plus V2 SeaCAT Profiler CTD Seal QuAAtro or Seal AA3 Shimadzu TOC-5000 Total Organic Carbon Analyzer Turner Designs 10-AU Fluorometer Turner Designs Aquafluor 8000-010 bbe Moldaenke FluoroProbe SMALL BOAT CONTINENT > NORTH AMERICA > CANADA > GREAT LAKES, CANADA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES Lake Huron Saginaw Bay 8U1KRJ BHEFP2 KBGJ0H UC413A

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