Lake Water Quality 2006 Report - Lakefield Herald

More documents

Recommendations

Info

In fact, the more one looks at the “Flow vs Phosphorus” graphs, the less correlationone sees between flow and phosphorus, apart from the time of the spring freshet.KLSA continues to believe that the spring freshet is probably the main contributor tolow phosphorus levels in the spring. However, many variations in spring and summerphosphorus levels do NOT correlate with flow. Other factors must be involved. Butwhat are they?• Biological activities in the lake (absorption and release of phosphorus by plantsand animals)?• Absorption into or release from sediments?• Seasonal inputs from runoff?• STP discharges?At this point, these are only hypotheses, and KLSA continues to work towards findingsources of phosphorus, both through our own monitoring efforts and throughresearch with students and senior scientists.Farmland by the Otonabee River, south of Lakefield(foam from suspended organics forms below dams)26
Phosphorus Levels over 5 Years (each point is an average of 7 lakes)2520Total Phosphorus, ppb (ug/L)15102002200320042005200650Jun 1 Jul 1 Aug 1 Sep 1Flow vs Phosphorus, 200230030Flow, cubic metres/sec200100252015105TP, ppb (ug/L)01-May-02 1-Jun-02 1-Jul-02 1-Aug-02 1-Sep-020Flow at Lakefield lockTotal phosphorus, Waterway average27
Page 1: Kawartha Lake Stewards AssociationW
Page 4 and 5: Table of ContentsPresident’s Mess
Page 6 and 7: President’s Message2007 will be t
Page 8 and 9: species-at-risk and shoreline and i
Page 10: There are 3 different “phosphorus
Page 13 and 14: Map of the Kawartha Lakes 2006 Test
Page 15 and 16: subsequently deposited formations n
Page 17 and 18: These problems were solved with the
Page 19 and 20: Burleigh fallsThe cataracts effecti
Page 21 and 22: to estimate how much phosphorus is
Page 23 and 24: levels of these two inflows. Big Ba
Page 25 and 26: Low Phosphorus Lakes35.0030.0025.00
Page 27: The high flow/low phosphorus theory
Page 31 and 32: Flow vs Phosphorus, 200530030Flow,
Page 33 and 34: Many other sources of phosphorus to
Page 35 and 36: eductions in phosphorus discharges
Page 37 and 38: Ontario’s Natural Resources and V
Page 39 and 40: the Base Flow Index (BFI) and perce
Page 41 and 42: systems and animal feces (beef, pou
Page 43 and 44: ANOVA analysis as no suitable data
Page 45 and 46: 3530Phosphorus (µg/l)252015105a ab
Page 47 and 48: How Much Algae Sticks to Macrophyte
Page 49 and 50: sites for both lakes (Pigeon Lake S
Page 51 and 52: The results from our initial survey
Page 53 and 54: Are our lakes at risk of switching
Page 55 and 56: Generally, then, the water in the K
Page 59 and 60: Appendix A:KLSA Mission Statement,
Page 61 and 62: Appendix B: Financial PartnersParks
Page 63: Date Expenses04-Jan-06 Bank Fees 3.
Page 68 and 69: At your request, subject to applica
Page 70 and 71: Lake-by-Lake E.coli ResultsTo put t
Page 72 and 73: To put the results in perspective:
Page 78 and 79:
To put the results in perspective:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
LAKE NAME Site Description DateSecc
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Appendix G: GlossaryAquatic plants
Page 92 and 93:
plants. In the Kawartha Lakes area,
show all

Lake Water Quality 2006 Report - Lakefield Herald

Create successful ePaper yourself

Delete template?

Save as template?