Hello,

Can anyone identify this aquatic plant - I think it's an algae of some form but not sure.



The above picture was taken on Burntroot lake off our campsite, however it was also seen growing in Big T, Longer L and the Petawawa River sections. The specimens we saw were all growing on rock in less than 4 feet of water. Each of these lakes had very poor visibility (< 1.5 meters), not sure if that's a factor in this plant's biology but it was a commonality. <br>
Tks for any help.

Looks like a freshwater sponge.
http://www.dnr.state.wi.us/org/es/science/citizen/

Hi diagram,

Much appreciate the id - looks to be exactly what this is, a species of water sponge. Interesting that it gets its green color from the algae growth. We didn't notice it in Merchant or other clear-water lakes in that area, but I'll keep my eyes open for it in the future and note its distribution elsewhere in ON waterbodies.