Water Chemistry and Chlorophyll a Monitoring in North Central Ontario Lakes

Description

This program summarizes long term water chemistry and chlorophyll a monitoring in north central Ontario lakes developed under Canada’s Long Range Transport of Air Pollutants (LRTAP) initiative to understand and track lake acidification caused by atmospheric deposition. Centered on the intensively studied Turkey Lakes Watershed since 1979 and complemented by broader headwater and mesoscale lake networks around Sault Ste. Marie, Ontario, as well as a few locations near Parry Sound, Ontario, the monitoring integrates catchment scale approaches to link atmospheric inputs, watershed processes, and aquatic responses. Water chemistry measurements quantify acid–base status, major ions, nutrients, and trace metals to diagnose sensitivity to acidification, episodic stress during events such as spring snowmelt, and long term chemical recovery following emission controls. Chlorophyll a is used alongside chemistry to indicate phytoplankton biomass, lake productivity, and overall water quality, providing biological context for fish habitat and ecosystem condition. Together, these coordinated datasets support both detailed process studies and regional assessments of lake sensitivity, productivity, and ecological recovery across a heterogeneous landscape.

Resources

Name Format Description Link
1979-2010 Water Chemistry Data CSV https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/1979-2010_WaterChemistryData_HWLTLWMESO.csv
1979-2010 Water Chemistry Data xlsx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/1979-2010_WaterChemistryData_HWLTLWMESO_TG_FR_final.xlsx
2000-2010 Chlorophyll a Data CSV https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/2000-2010_Chlorophylla_HWLMESO.csv
2000-2010 Chlorophyll a Data xlsx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/2000-2010_Chlorophylla_HWLMESO_TG_FR_final.xlsx
Chlorophyll a Data Dictionary Docx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/ChlaDataDictionary.docx
Chlorophyll a Data Dictionary Docx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/ChlaDataDictionary_TG_FR_final.docx
Water Chemistry and Chlorophyll a Monitoring in North-Central Ontario Lakes Docx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/Water%20Chemistry%20and%20Chlorophyll%20a%20Monitoring%20in%20North-Central%20Ontario%20Lakes.docx
Water Chemistry and Chlorophyll a Monitoring in North-Central Ontario Lakes Docx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/Water%20Chemistry%20and%20Chlorophyll%20a%20Monitoring%20in%20North-Central%20Ontario%20Lakes_TG_FR_final.docx
Water Chemistry Data Dictionary xlsx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/WaterChemDataDictionary_TG_FR_final.xlsx
Water Chemistry Data Dictionary xlsx https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/2b1e5900-18aa-4800-a418-365c9bb80527/attachments/WaterChemDataDictionary.xlsx
Water Chemistry and Chlorophyll a Monitoring in North Central Ontario Lakes Ersi REST https://egisp.dfo-mpo.gc.ca/arcgis/rest/services/open_data_donnees_ouvertes/water_chemistry_chlorophyll_monitoring_nc_ontario_lakes/MapServer
Water Chemistry and Chlorophyll a Monitoring in North Central Ontario Lakes Ersi REST https://egisp.dfo-mpo.gc.ca/arcgis/rest/services/open_data_donnees_ouvertes/water_chemistry_chlorophyll_monitoring_nc_ontario_lakes/MapServer

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