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Cherry Island Cormorants, Summer, 2004


LAKE STEWARD

..."About 10 years ago, the Ontario Ministry of Natural Resources approached Ping about becoming a Lake Steward. At that time he was already a member of the Lake Clear Property Owners Association, which had been formed in 1981 when several home and cottage owners realized the lake was rapidly deteriorating. By 1981, the accumulation of pollutants in the lake, such as raw sewage, shampoo, soap, detergents, fertilizers, pesticides, and runoff from manicured lawns and farms, was causing serious problems. Ping was already monitoring the lake by taking chlorophyll tests and Secchi readings for lake water clarity for the Ministry of  the Environment.  When lake monitoring began in 1981,  the Secchi reading was only 2 metres and the chlorophyll level was high. Fifteen years later, as a result of persistent monitoring and clean-up efforts by local inhabitants, the Secchi disk reading was up to 6 – 7 metres and the tests for chlorophyll indicated the lake had returned to normal levels."... (for the full story about Ping and Jan's stewardship activities see page 11 in CPAWS Wildlife Friendly Waterfront brochure published in the early 2000s.)

Contents
Cormorants
Water quality
Lake Clear nutrient water report 1976-01
2005 Fish Guide
Lake Clear invasive species watch


Cormorants
Many members attending the 2004 AGM had questions and concerns about the increasing numbers of cormorants - especially around Cherry Island.  It was agreed that a greater understanding was needed and that the MNR would be contacted.  see response

Water quality - 2004 AGM report
Lake Clear is in relatively good shape but there are some disturbing trends related to higher phosphate readings and water levels.  There is also growing pressure for more development.  A watershed plan will be useful in helping us meet the challenge of reconciling conservation of our natural resources with their sustainable use

Interest in looking for solutions exists because further deteriorization of water quality threatens the future of the trout fishery and high water means the erosion of sandy shorelines, example,  Weiland Shores and Mulberry Lane.

Unlike lakes that are connected to large rivers Lake Clear has many of the influencing elements under its own control - we are more of less masters of our own fate.

Actions:
- Lake Steward, Alan Netherton, will be taking two phosphate readings in 2005; one from the deep end and the other from the shallower end.
- the Township/County will be reminded to be particularly vigilant in keeping the Manning culverts clear in the autumn to try and reduce the Spring lake level
- Mayor Mintha will be meeting with drainage engineers to seek a solution for the high water levels
- the LCC hopes to initiate a lake watershed plan in partnership with the Twp. and County - more details

Lake Clear nutrient water report 1976-01

Watershed area 94.32 sq. km
Surface area 1,700 ha
Maximum depth 42.7 m
Volume 193.04 mill. cu. m.
Shoreline 31.5 km
 
year Secchi depth (metres) Chlorophyll A (ug/l)
1976
1977
1978
1979
1980
1981

1985

1987

1990
1991
1992

1994
1995
 

1996
1997
1998
1999
2000
2001
2002

 

4.7
3.7
3.8
4.1
4.2
3.0 (shallowest)

3.4

4.1

6.4
5.7
6.7

5.8
6.7
 

6.0
7.3 (deepest)
6.5
6.5
6.5
6.5
 

Average 5.35 metres

2.7
2.9
3.4
2.5
3.6
2.2

2.9

1.6

1.1
0.8
0.8

1.2
.94

Phosphorus
5.0
6.0
6.0
8.0
12.0
6.0



 


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