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Risk Assessment for Lakes AIS · Aquatic Invasive Species Education for Otter Tail County Where could Zebra mussels invade?

Published byJalynn Hewett Modified over 9 years ago

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Presentation on theme: "Risk Assessment for Lakes AIS · Aquatic Invasive Species Education for Otter Tail County Where could Zebra mussels invade?"— Presentation transcript:

1 Risk Assessment for Lakes AIS · Aquatic Invasive Species Education for Otter Tail County Where could Zebra mussels invade?

2 Answer Guide AIS · Aquatic Invasive Species Education for Otter Tail County Study Site: Otter Tail Lake Risk of infestation: High, likely Why: The water chemistry is favorable to optimal growth It has hard substrates for zebra mussel attachment (gravel, rocks) It is downstream from Rose Lake, which is infested already It is connected to many other lakes It is a heavily used lake with many lake accesses

3 Answer Guide AIS · Aquatic Invasive Species Education for Otter Tail County Study Site: West Battle Lake Risk of infestation: Moderately high Why: The water chemistry is favorable to optimal growth It has hard substrates for zebra mussel attachment (gravel, rocks) It is a heavily used lake with many lake accesses It is connected to other lakes

4 Answer Guide AIS · Aquatic Invasive Species Education for Otter Tail County Study Site: Big Pine Lake Risk of infestation: High, likely Why: The water chemistry is favorable to optimal growth It has hard substrates for zebra mussel attachment (gravel, rocks) It is downstream from Rose Lake, which is infested already It is connected to many other lakes It is a heavily used lake with many lake accesses

5 Answer Guide AIS · Aquatic Invasive Species Education for Otter Tail County Study Site: Dead Lake Risk of infestation: Moderate Why: The water chemistry is favorable to optimal growth The substrate is not as suitable for attachment (softer lake bottom with lots of plants) It is connected to many other lakes

6 Answer Guide AIS · Aquatic Invasive Species Education for Otter Tail County Study Site: Middle Leaf Lake Risk of infestation: Low Why: The water chemistry is favorable to optimal growth The substrate is not as suitable for attachment (softer lake bottom with lots of plants) It is not connected to any other lakes (except East and West Leaf Lakes) It is not a heavily used lake

7 Answer Guide AIS · Aquatic Invasive Species Education for Otter Tail County Study Site: Poplar and Gunflint Lakes Risk of infestation: Low Why: The water chemistry is not favorable to optimal growth They are not near any other zebra mussel infested lakes Poplar Lake is not connected to many other lakes

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