Inlet between River Institute and L’Heritage High School : St.Lawrence River

Ontario, Canada

Observed by
Emma Ehrenfeld
pH (0-14) What's this? 7.8
Dissolved oxygen mg/L What's this? 11.5
Secchi depth m What's this? bottom visible
Chlorine ppm What's this? 0.0
Hardness mg/L What's this? 100.0
Alkalinity mg/L What's this? 120.0
Water depth m What's this? 0.75
Conductivity μS/cm What's this? 290.0
Air temperature °C What's this? 28.0
Water temperature °C What's this? 25.7


Plant What's this?
Insect What's this?
Crustacean What's this?

Invasive Species

Phragmites What's this?
Loosestrife What's this?
Zebra Mussels
Zebra Mussels What's this?
Other Invasive
Other Invasive What's this?
Eurasian Milfoil
Eurasian Milfoil What's this?
Rusty Crayfish
Rusty Crayfish What's this?


Current weather What's this?
  • sunny
  • cloudy
partial clouds, bright sun.
Weather in previous 24 hours What's this?
  • cloudy
Very calm day, overcast and cooler but no wind or rain

Latest photos


Birds: Canada geese, house sparrow, american robin.

Insects: Cabbage moth, caddisfly, stonefly, diptera sp.

Plants: Richardsons pondweed, coontail, major, minor and starry duckweed, Eurasian milfoil, elodea, water nymph, fragrant white water lily, flatleaf pondweed, phragmite, purple loosestrife, black eyed susan, milkweed, poison ivy, touch-me-not, golden rod, willow trees, honeysuckle bushes.

Fish: Longnose gar, largemout bass, smallmouth bass, round goby, mimic shiner, bluntnose minnow, fallfish, yellow perch, bluegill sunfish, pumpkinseed sunfish.

Crustacean: Rusty crayfish and virile crayfish.

Invasive species: purple loosestrife, phragmite, eurasian milfoil, round goby, rusty crayfish.