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Published byJohn Higgins Modified over 9 years ago
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ICHTHYOLOGY and LAKE ECOLOGY
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Let’s Talk Lakes!!!
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Lake Zones
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10 %
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FOOD CHAIN
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AQUATIC PLANTS
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OLIGOTROPHIC, MESOTROPHIC, EUTROPHIC
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TROUT NEED COLD, CLEAN WATER
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BULLHEADS CAN TOLORATE WARM, MUDDY WATER
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PHOSPHORUS
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WINTER KILL!
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TURBIDITY AND TEMP.
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BOG STAINED WATERS
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BIOLOGICAL MAGNIFICATION
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MISSISSIPPI WATERSHED
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HARD WATER VS. SOFT WATER Mineral in bedrock (Leeching)
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Boundary Waters Canoe Area Glacial Erosion, Acid Precipitation?
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Fish Survey
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EXTERNAL ANATOMY
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INTERNAL ANATOMY
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