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CATLIN LAKE

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1 : CATLIN LAKE A case study By Kate Hilfiker
2 : Location Catlin Lake is located in the Adirondacks in the Huntington Biological Field Station We visited this lake during our field trip The sun was shinning There was a large whole in one of the boats
3 : Background information Oligotrophic lake The watershed is small, protected, land has little development Low nutrient content Small Adirondack lake 12.5 meters deep at the deepest points Dimictic Very beautiful
4 : Temperature Profile
5 : Unique macrophytes Common Pipewort (Eriocaulon aquaticum) -shallow fresh water -Full sun -Sandy/peaty, slightly acidic soil -Clear water Water Celery (Vallisneria americana) -Ponds, lakes, and quiet streams at depths of 1 to 4 m -Leaves, fruits, and rootstocks are excellent food for waterfowl
6 : Macroinvertebrates and Benthos Phantom Midge Larva (Charborus species) -Secondary consumers -Filter Feeders -Eat Daphnia and Cyclops -Eaten by many fish Order-Trichoptera Family- Molannidae -larvae construct a shield-shaped case made of sand grains -found in lakes with sand
7 : Algae!! -There is an abundance of sand present at this lake. -A good source of silica
8 : Zooplankton Daphnia Calanoid Kellicotta Keratella Bosmina
9 : QUESTIONS?

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