Kawartha Region Lake Monitoring Cat Jones & Kate Doughty - PowerPoint PPT Presentation

Kawartha Region Lake Monitoring Cat Jones & Kate Doughty Department of Biology Trent University

 Annual Sampling of Lakes  Limnological Parameters- Water Quality Kawartha  Establish Baseline Conditions Region Lake  Variability between Lakes and between Monitoring: Years  Long Term Study of Kawartha Region What We Lakes Do  Create Opportunities for more Frequent or Intense Sampling

m S/m specific conductivity dissolved oxygen, concentration mg/L dissolved oxygen, percent saturation mg/L water temperature °C Kawartha Secchi depth M pH NA Region Lake total suspended solids mg/L dissolved organic carbon mg C/L Monitoring: absorbance at 350 nm, in absorbance units m -1 molar absorptivity at 280 nm L mol C -1 cm -1 spectral slope ratio NA total phosphorus µg P/L What We soluble reactive phosphorus µg P/L Measure: particulate phosphorus µg P/L total dissolved nitrogen mg N/L nitrate mg N/L ammonium mg N/L m g/L chlorophyll a (suspended)

Kawartha Highlands Kawartha Region Provincial Park Lakes  Adams Lake  Anstruther  Kasshabog Lake  North Rathbun Lake Lake Kawartha  Chandos Lake  Long Lake  Cold Lake Region Lake  Catchacoma  Mississauga  Bottle Lake Monitoring: Lake Lake  Sawmill Lake  Clear Lake  Mississauga  Compass Lake River  Coon Lake  Sucker Lake 2018 Lakes  Picard Lake  Crystal Lake  Crab Lake  Salmon Lake (~30 Lakes Total)  Eels Lake  Mountain Lake  Stoney Lake  Jack Lake  Loon Call Lake  Wolf Lake

TSS ⁴ Lake Cond ¹ DO ² Temp ³ pH Anstruther 34.2 9.26 23.7 7.17 0.566 Big Cedar 186.5 9.06 24.2 8.19 0.5655 Bottle 22 8.31 24.9 7.24 0.2688 Catchacoma 50.7 9 25.1 7.12 0.3944 Kawartha Chandos 143.1 9.29 23.7 7.14 0.668 Clear 221.5 9.05 24.9 8.4 1.242 Region Lake Coon 114.8 9.28 24.9 8.27 0.6875 Crystal 188.7 9.1 25.1 8.42 0.432 Monitoring: Eels 51.4 9.1 25.1 7.51 0.588 Kasshabog 88.6 9 26.1 7.52 0.6067 Long 35.5 8.88 24.9 7.75 0.362 Mississauga 45.1 9.05 22.8 7.72 0.646 2018 Mississauga R.1 48.9 8.92 25.7 7.09 0.347 Mississauga R.2 48.8 8.63 25.7 7.07 0 Results Picard 209.8 9.7 22.8 7.86 0.754 Salmon 172.2 9.29 25.2 8.28 0.487 Sucker 22 8.48 24.9 7.91 0.4607 ¹ Cond – Conductivity ² DO- Dissolved Oxygen ³ Temp- Temperature ° C ⁴ TSS- Total Suspended Solids

Kawartha Region Lake Monitoring: Dissolved Oxygen  DO Saturation: Balance of primary production and respiration  Typical Range (0-100%)

Kawartha Region Lake Monitoring: Dissolved Organic Carbon  DOC: Related to “brownness” or color of the lake  Typical Range (0-15 mg/L)

Kawartha Region Lake Monitoring: Total Phosphorus  Total Phosphorus (TP): Higher TP = more algae  Typical Range (5-10 ug/L)

Kawartha Region Lake Monitoring: Chlorophyll- α  Chlorophyll- α : Index of algal biomass  Typical range for oligotrophic lakes (3-10 ug/L)

Kawartha Region Lake Monitoring: Kawartha Highland Provincial Park vs. Kawartha Region Lakes

Kawartha Region Lake Monitoring: Kawartha Highland Provincial Park vs. Kawartha Region Lakes

 Unproductive  Limited variability between lakes Kawartha  Some stratification dynamics Region Lake  Low inorganic nitrogen with some Monitoring: internal production What Do Results are mostly representative of Results Show? what is to be expected for the Kawartha Region Lakes

Data 12 Collection 10 from Lake 8 TP (ug/L) Partner 6 Program: 4 2 Total Phosphorous 0 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Over Time Catchacoma Mississagua Picard Cold  Comparison of Total Phosphorus (TP) in Lakes Over Time

Kawartha Region Lake Monitoring Sources of Nutrients

Natural Unnatural Kawartha  Snow melt  Pet Waste Region Lake  Wetlands Monitoring  Fertilizers  Pollen Program:  Septic Tanks  Leaf Litter  Dumping of Comparison of  Run off organic matter some natural vs. (garden waste/ unnatural sources lawn clippings) of nutrients “ If it would not naturally occur within the lake, then it most likely has a negative impact on the water quality of the lake”

 More lake-years to assess patterns through time Kawartha  Seasonal sampling on selected lakes Region Lake Monitoring:  Small scale experiments to assess processes ( ie: primary production) How Donors Help  Zooplankton sampling & Future Work  Standardize sampling and improve data storage

Thanks to : Donors- for supporting this research Students- for work in the field and lab Volunteers -for sampling assistance Image Credit: FourSquare City Guide: Retrieved From: https://foursquare.com/v/catchacoma-lake/4bf991d0b182c9b6b52c795a/photos

QUESTIONS? Image Credit: FourSquare City Guide: Retrieved From: https://foursquare.com/v/catchacoma-lake/4bf991d0b182c9b6b52c795a/photos