oneida lake by don maryanski
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Oneida Lake By: Don Maryanski

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Oneida Lake By: Don Maryanski. How was Oneida Formed?. Formed from Lake Iroquois Glaciers receded and damned St. Lawrence As temp. increased St. Lawrence was able to flow out into ocean and Oneida formed in glacial depression. Physical properties.

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how was oneida formed
How was Oneida Formed?
  • Formed from Lake Iroquois
    • Glaciers receded and damned St. Lawrence
    • As temp. increased St. Lawrence was able to flow out into ocean and Oneida formed in glacial depression
physical properties
Physical properties
  • It is the largest lake by surface area (207 km2) completely bordered by N.Y.
  • Mean depth is 6.8m
  • Max depth 16.8m
  • 20.9 miles long and 5.8 miles wide
more on oneida
More on Oneida
  • Dimictic and eutrophic
  • Isothermal in summer
  • Increasing population causing increased sediment and nutrient imput
    • Population near lake in 1900 was 413,000, today it is over 886,000
  • Exotic species causing changes in food web (zebra mussel)
    • 8 exotic species in 1900, 18 today
phytoplankton
Phytoplankton
  • Epilimnion
    • Aulacosira
    • Microcystis
    • Small flagellates
    • Metalimnion
      • Aulacosira
      • Microcystis
      • Mallanomous
      • Small flagellates
    • Hypolimnion
      • Aulacosira
      • Microcystis
      • acinastrum
macrophytes
Macrophytes
  • Ceratophyllum
    • No roots, dependant on water nutrients
  • Elodea
    • Grows in wide range of condition
    • Good habitat for aquatic animals
  • Valisneria
    • “eelgrass” or “tapegrass”
    • Sometimes forms underwater meadows
zooplankton
Zooplankton
  • Cyclopoid and Calanoid Copepods
  • Cladocerans (Bosmina, Daphnia and Diaphanosoma)
  • Keratella
  • Polyarthra
benthic invertebrates
Benthic invertebrates
  • Gastropods (snails)
  • Zebra mussel
    • Introduced
    • Filter algae from water and wake it more clear
  • Chironomidae
    • Non-biting midges
exotic species
Exotic Species
  • Zebra mussel
    • Discovered in 1991
    • Caused loss of 3 native clam species
water chestnut
Water Chestnut
  • Can dramatically cover surface of water preventing little light from entering
  • Can also clog waterways
purple loosestrife
Purple loosestrife
  • Displaces native wetland plants
  • Less suitable for wildlife than native plants
round goby
Round Goby
  • Consume zebra mussels but also eat fish eggs
fishhook waterflea
Fishhook waterflea
  • Prey on zooplankton
  • Not edible by small fish