| Contributors | Affiliation | Role |
|---|---|---|
| Bullerjahn, George S. | Bowling Green State University (BGSU) | Principal Investigator |
| McKay, Robert Michael | Bowling Green State University (BGSU) | Co-Principal Investigator |
| Rauch, Shannon | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Survey data from Sandusky Bay, Lake Erie, collected in 2019.
Sampling and sample processing followed Salk et al., (2018).
Briefly, at each sampling location, water column physical and chemical parameters (pH, conductivity, temperature, dissolved oxygen) were measured using a YSI 600QS sonde (YSI Inc., Yellow Springs, OH, USA). Water samples were collected by Van Dorn bottle at 1m depth for the analysis of NO3, NH4, phosphate, TKN, TP, chl a concentrations, total microcystins and cell identification/biovolume enumeration. Samples for dissolved nutrient analysis were filtered immediately upon collection (0.2 um), kept on ice, and frozen upon return to the lab. Unfiltered sample water was collected for TKN and TP analysis and also frozen. Total and dissolved (<0.2 um) nutrient concentrations were determined following analysis of samples at the Ohio State University Stone Laboratory (Gibralter Island, OH, USA). Samples for chl a analysis were concentrated on GFC filters whereas raw water samples for microcystins were frozen in new polycarbonate bottles with subsequent analysis of both parameters by Ohio EPA.
BCO-DMO Processing:
- modified parameter names.
| File |
|---|
Sandusky_Bay_Surveys_2019.csv (Comma Separated Values (.csv), 4.55 KB) MD5:6bd394814566c60c9d0f2b1075a5f6e4 Primary data file for dataset ID 814593 |
| Parameter | Description | Units |
| Deployment | Deployment identifier | unitless |
| Station | Station name | unitless |
| Time | Time of survey (UTC); format: hh:mm:ss | unitless |
| ISO_DateTime_UTC | Date and time of survey (UTC) formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ | unitless |
| Lat | Latitude; positive values = North | decimal degrees |
| long | Longitude; positive values = East | decimal degrees |
| Max_Depth | Max. depth | meters (m) |
| Sample_Depth | Sample depth | meters (m) |
| Air_Temp | Air temperature | degrees Celsius |
| Water_Temp | Water temperature | degrees Celsius |
| Sample_DO | Dissolved oxygen | milligrams per liter (mg L-1) |
| Cond | Conductivity | milli siemens per centimeter (mS cm-1) |
| pH | pH | unitless (pH scale) |
| chlorophyll_a | Chlorophyll a | micrograms per liter (ug L-1) |
| microcystin | Microcystins | micrograms per liter (ug L-1) |
| Ammonium | Ammonium | micromoles per liter (umol L-1) |
| NO3_NO2 | NO3 + NO2 | micromoles per liter (umol L-1) |
| NO2 | NO2 | micromoles per liter (umol L-1) |
| DRP | Dissolved reactive phosphorus | micromoles per liter (umol L-1) |
| Silicate | Silicate | micromoles per liter (umol L-1) |
| Nitrate | Nitrate | micromoles per liter (umol L-1) |
| TP | Total Phosphorus | micromoles per liter (umol L-1) |
| TKN | Total Kjeldahl Nitrogen | micromoles per liter (umol L-1) |
| TN | Total Nitrogen | micromoles per liter (umol L-1) |
| TN_TP_ratio | TN:TP ratio | molar ratio |
| Dataset-specific Instrument Name | YSI 600QS sonde |
| Generic Instrument Name | YSI Sonde 6-Series |
| Dataset-specific Description | YSI 600QS sonde (YSI Inc., Yellow Springs, OH, USA) – factory calibrated April 2018 |
| Generic Instrument Description | YSI 6-Series water quality sondes and sensors are instruments for environmental monitoring and long-term deployments. YSI datasondes accept multiple water quality sensors (i.e., they are multiparameter sondes). Sondes can measure temperature, conductivity, dissolved oxygen, depth, turbidity, and other water quality parameters. The 6-Series includes several models. More from YSI. |
| Dataset-specific Instrument Name | Van Dorn bottle |
| Generic Instrument Name | Van Dorn water sampler |
| Generic Instrument Description | A free-flushing water sample bottle comprising a cylinder (polycarbonate, acrylic or PVC) with a stopper at each end. The bottle is closed by means of a messenger from the surface releasing the tension on a latex band and thus pulling the two stoppers firmly into place. A thermometer can be mounted inside the bottle. One or more bottles can be lowered on a line to allow sampling at a single or multiple depth levels. Van Dorn samplers are suitable for for physical (temperature), chemical and biological sampling in shallow to very deep water. Bottles are typically lowered vertically through the water column although a horizontal version is available for sampling near the seabed or at thermoclines or chemoclines. Because of the lack of metal parts the bottles are suitable for trace metal sampling, although the blue polyurethane seal used in the Alpha version may leach mercury. The Beta version uses white ASA plastic seals that do not leach mercury but are less durable. |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-06-10 |
| End Date | 2019-06-10 |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-06-17 |
| End Date | 2019-06-17 |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-07-08 |
| End Date | 2019-07-08 |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-08-05 |
| End Date | 2019-08-05 |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-08-05 |
| End Date | 2019-08-05 |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-09-09 |
| End Date | 2019-09-09 |
| Website | |
| Platform | ODNR Watercraft |
| Start Date | 2019-09-23 |
| End Date | 2019-09-23 |
NSF Award Abstract:
The Lake Erie Center for Fresh Waters and Human Health is a five-year, multi-institutional effort aimed at understanding the environmental factors and ongoing changes that influence the growth and toxicity of cyanobacterial harmful algal blooms (cHABs) in Lake Erie. The Center will support three research projects. Specifically these projects address the following aims: first, how environmental cues promote or constrain the proliferation of cHAB species in mixed populations; second, how environmental cues influence toxin production by cHAB species; third, how other member of the microbial assemblage influence cHAB growth and toxicity. The Center will provide a Community Engagement Core to lead outreach activities that will inform the general public on the effects of cHABs by efforts that include: (1) a community engaged scholarship training for scientists associated with the Center, (2) community-engaged scholarship training for practitioners or community members associated with the Center, and (3) a stakeholder needs assessment for Great Lakes and environmental health literacy to inform general outreach information needs. A citizen science engagement with charter boat captains will further develop a near real-time database on cHAB severity in Lake Erie, and the Facilities Core will provide metadata that not only serve the three stated research projects, but also yield a database available to all Great Lakes scientists. The outcomes are to involve community stakeholders and researchers in the Great Lakes on issues regarding human health, climate change and awareness of threats to our fresh water resources.
The Center is jointly supported by NSF and by the National Institute for Environmental Health Sciences (NIEHS).
This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
| Funding Source | Award |
|---|---|
| NSF Division of Ocean Sciences (NSF OCE) |