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Stone Lab Algal and Water Quality Laboratory | Ohio Sea Grant

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Stone Lab Algal and Water Quality Laboratory

Stone Lab's water quality labs offers a lakeside research location for scientists studying harmful algal blooms

2014 Buoy deployed by Ohio Sea Grant

Dr. Justin Chaffin prepares to deploys a Buoy in Lake Erie.

The Stone Lab Algal & Water Quality Lab, which opened in 2013, allows researchers to identify plankton, measure chlorophyll content and cyanobacteria toxins, analyze organic and inorganic suspended solids, and test for nutrients such as phosphorus and nitrogen.

These tests enable scientists to tackle the issue of harmful algal blooms in Lake Erie better than ever before.

A new buoy donated by Fondriest Environmental and upgraded with additional equipment through grant funding helps Stone Lab staff monitor water conditions, including harmful algal blooms, in Lake Erie’s western basin.

Buoy is out of the water for the winter, see you in April 2017!


Buoy Data

Recorded at October 18, 1:00 pm
Battery 13.000 V
Air Temp 23.600 ° C
Relative Humidity 72.000 %
Relative Barometric Pressure 1007.300 hPa
Wind Speed 1.300 m/s
Max Wind Speed 5.600 m/s
Wind Direction 23.000 NNE
Wet Bulb Temp 0.000 ° C
Precip Type 0.000
Rain Intensity 0.000 cm/h
Total Rain 218.200 mm
Interval Rain 0.000 mm
Heading 0.000 Degree
Surface Water Temp 20.120 ° C
Water Temp 1 Meter 22.660 ° C
Water Temp 71.450 ° F
Specific Conductivity 77.000 uS/cm
Depth of Sensor 0.031 m
Water pH 8.210 pH
Turbidity 2.850 NTU+
Total Algae - Chlorophyll -1.100 ug/L
Chlorophyll RFU 0.000 RFU
Cyanobacteria CLEAN-0.800 ug/L
Cyanobacteria RFU 0.300 RFU
Dissolved O2 Saturation 102.100 %
Dissolved O2 8.940 mg/L
Created at 2016-10-18 13:11:55
Visit Great Lakes Observing System

Query station information and more variables at the HABS Data Portal station website hosted at glos.us

View Station
Water Quality Live Data

Query up-to-date telemetric data directly from the buoy powered by WQDataLive.com

Live Data

Analytical Equipment Available

The new water quality laboratory offers lake researchers the ability to analyze water samples for nutrient concentration, algal biomass, and cyanobacterial toxins. The growth chamber provides researchers the ability for controlled environment conditions for algal growth experiments. The lab is stocked with glassware, balances, filtering manifolds, and pipettes. Deionized water is available at most sinks. Freezer space (-20°C and -80°C ) is available.

  • Barnstead Nanopure Water
  • SEAL 5-Channel Nutrient Analyzer
  • Geneva Growth Chamber
  • Eppendorf Refrigerated Centrifuge
  • Thermo Sci Drying Oven
  • Thermo Sci Muffle Furance
  • Fisher Sci Sonicator
  • BioTek 96-well Plate Reader
  • Shimadzu UV-Vis Spectrophotometer
  • NAPCO Benchtop Autoclave
  • Refrigerator & Freezers (-80°C)
  • Adventure Analytical Balance
  • Pipettes 0.2 µL to 10,000 µL
  • Filter funnels and manifolds
  • Vacuum pumps
  • Mettler Toledo pH meter
  • Stirring hot plate
  • Hot water bath
  • Beakers, flasks, and cylinders
  • General lab supplies

Charter Boat Captains Help Monitor Lake Erie Water Quality

Water samples were collected by charter boat captains and aboard Stone Lab science cruises using a surface-to-2-meter intergraded tube sampler. Samples were analyzed for chlorophyll a (an indicator of algae biomass), microcystin (the toxin produced by cyanobacteria), total phosphorus and nitrogen (indicators of maximum biomass potential), dissolved nitrate, phosphate, and silicate (nutrients available for algae), and total suspended solids (mass of all particulates in the water). The captains record GPS location, water temperature, and Secchi disk depth (indicator of water clarity). The project has been sponsored by Ohio EPA Environmental Education Fund and Surface Water Improvement Fund.