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Amston Lake, Hebron

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             Amston Lake is a 187 acre water body supporting 25 known aquatic plant species, none of which are invasive. To prevent the introduction of invasive plants, the boat ramp remains locked and is opened only after boats are inspected.  There are many storm drains where filamentous algae is found year-round.  The lake averages eight to ten feet deep and has a maximum depth of over twenty-six feet. The lake can be drawn down ten to twelve inches for dam repairs.  The northern end is sparsely developed but in the southern end development is dense. There are no buffer zones between the most yards and the water.     

            During our August 2006 survey, the dominant species in the lake was Vallisneria americana , which was abundant along the edge of the lake to a depth of about eight feet.  The only exception to the high occurrence of Vallisneria americana  was in the eastern-most cove where Brasenia schreberi and Potamogeton robbinsii were dominant. 

            The floating-leaved species, Brasenia schreberi, Nymphaea odorata, and Nuphar variegata all coexisted in shallow, protected parts of the lake, mostly notably in the eastern and northern-most coves.    Pontederia cordata, an emergent species,  was sparse and close to most of the shoreline .  Other submerged species, including Charaphytes, Ceratophyllum echinatum, Elatine minima, Eleocharis acicularis, Eriocaulon aquaticum, Myriophyllum tenellum, Potamogeton amplifolius, Potamogeton bicupulatus, Potamogeton natans, Potamogeton perfoliatus, Potamogeton pusillus, Sagittaria sp., Utricularia gibba, Utricularia purpurea, Utricularia radiata, Najas flexilis, Elodea nuttallii and Unidentified sedge. These species occurred mostly in small patches around various places along the perimeter of the lake.