Ella
6/13
SA
Location where data was collected:
Watershed:
Lake Champlain
River:
Potash Brook
Monitoring Site:
Potash Brook Champlain Water District
Physical Assessment
The speed of the water- 2.2
Average stream width- 22
Depth of stream- 15
Relative flow-
ft/sec
ft
inches
High
Water appearance-
muddy/milky
Surrounding development-
Residential
Bioblitz Assessment
Percentage of trees covering the river-
25%
Deciduous trees found- 60%
Coniferous trees found- 40%
Soil pit 1 notes- gets Lighter as the soil got deeper
Soil pit 2 notes- more wet as you get deeper
BMI Assessment
o
o
7 Main insects
o The most common
BMI was the caddis
fly larvae
Water
The water looked unhealthy because it was brown and cloudy. The reason why
it was muddy was because of recent erosion from the rain.
erosion:The gradual
destruction or diminution
of something
Because of the BMI's that are
intolerant to pollution livinging
in the stream,the water is proved
pollution free!
We wouldn't have found those
bugs if there were pollution.
Caddis Fly Larvae
•
The Caddis fly larvae is very intolerant of pollution.
Meaning they cannot live in water that contains pollution
Aquatic, premature Caddisfly
Adult, mature caddis fly
Conclusion
Since there were many Caddisfly larvae found
in the brook, and caddisfly larvae are very
intolerant to pollution, the water had little
pollution in it.
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