Risk Assessment for Lakes

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Presentation transcript:

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

Answer Guide Study Site: Lake Bemidji Risk of infestation: High Why: The water chemistry is favorable to optimal growth It has hard substrates for zebra mussel attachment (gravel, cobble, rocks) It is upstream from Cass Lake, which is infested It is connected to many other lakes (26 upstream lakes) It is a heavily used lake with many lake accesses AIS · Aquatic Invasive Species Education for Beltrami County

Answer Guide Study Site: Cass Lake Risk of infestation: Infested 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 AIS · Aquatic Invasive Species Education for Beltrami County

Answer Guide Study Site: Benjamin Risk of infestation: Low Why: The water chemistry is not favorable to optimal growth It has no upstream lakes It is not connected to many other lakes It is not heavily used AIS · Aquatic Invasive Species Education for Beltrami County

Answer Guide Study Site: Wolf Lake Risk of infestation: High Why: The water chemistry is favorable to optimal growth The substrate is suitable for attachment (gravel, cobble, rocks) It is connected to many other lakes, (33 upstream lakes) It is upstream from Cass Lake, which is infested AIS · Aquatic Invasive Species Education for Beltrami County

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