While stepping around the many gobys that washed ashore in the Eastern Basin in mid-May (06) I came across the remains of this  character grinning at me from a tangled mass of brilliant green algae. As you can see it has a mouth and a set of dentures that would intimidate any perch in it's weight class. The fish was almost seven inches long and a good six inches in girth.
Invasive Species
We are including this page to make it quick and easy for the reader to locate information regarding the various  "invasive species" that may or may not represent potential threats to Lake Ontario. Additional pages will be forthcoming as descriptive links are located or developed.  Links to "Ask Jeeves" and "Google" are  included above for those who like to do their own research. This web page does not attempt to identify the many invasive aquatic plant species, viruses, or other infectious  diseases we have to deal with on a routine basis.
Readers should note that the use of the words "may", "could", and "might" in studies and reports suggest a questionable situation. They are not substitutes for the words "will" and "would". The jury is still out on the long term impact of the most recent aliens. Keep in mind that our entire Lake Ontario salmonid program (Lake Trout excepted)  are intentionally relocated non-natives that might  be  considered invasive under other conditions.
New information provided by DEC, Sea Grant, and the USGS etc. will be posted on this page as it becomes available.
Ongoing programs can be viewed at the Protect Your Waters website.
Ask Jeeves
Upstream Reports

Bug-eyed or Bloody Shrimp (Hemimsis anomala) 2008
State and Federal Agencies have confirmed that "Bug-eyed Shrimp" have arrived in Lake Ontario. These little animals form large schools Which can usally be easily seen. Contact your local DEC Regional Office if you wish to report a sighting.

Zebra vs. Quagga Mussels
Tale of the tape
Zebra Mussel

Smaller of the two - striped and flat on one side.
Found at depths less than 150 feet.
Dormant in winter – do not feed.
Filter feeder.
Prefer a hard substrate.
Not competitive with the Quaggas.
Quagga Mussel

Larger, lighter in color, rounded shape.
Found at most depth ranges often exceeding 400 feet.
Tolerate colder temperatures  and feed all winter.
Filter feeder.
Utilize both soft and hard substrates.
squeeze out and replace the Zebras.
Mitten Crab
It's a free download
This page was last updated: April 12, 2015