That's incredible - I've not seen them before. They look like rocks in the water.Last discovery during yesterday morning’s kayak trip. Colonies of Bryozoans. Yep, lots of them.
Most ask what they are….
Typically, when people ask this question,what they have discovered is a colony of the freshwater bryozoan Pectinatella magnifica. Freshwater bryozoans are microscopic aquatic invertebrates that live in colonies that can form into jelly-like clumps, and are often found attached to docks or sticks. Bryozoan colonies can be as big as one foot (30 centimeters) in diameter. The base of each tiny bryozoan is attached to a surface. Its body has an outer sleeve-like structure called the cystid, and a mass of organs called polypide that moves inside of it.
Pix…one down in the water, the other on deck.
View attachment 333526
View attachment 333527