Fragments of a tubular bryozoan found on beaches at low tide.
showing statoblasts; stranded on lake margin, due to Ohio's fall lake drawdown, which intentionally killed thousands of rare aquatic plants, mussels and other shore life
A large number of these colonies were seen attached to underwater branches in the freshwater of Philpott Lake in SW VA. The center is a friable gelatinous material with intricate patterns of the organisms on the surface.
Red encrusting bryozoan....formerly Eurystomella bilabiata (Hincks, 1884)
Zoobotryon verticillatum, spaghetti bryozoan, organism superficially resembles branching marine seaweed. Bryozoans are invertebrate animals in the phylum Bryozoa, all aquatic, most are marine organisms
Zoobotryon verticillatum attached to floating dock, recreation area, Marine Corps Recruit Depot, very common, Spaghetti bryozoan found on low tide rocks and around eelgrass seagrass forming mats of tan. Many epibionts attached to bryozoan branches. Other free-living organisms hide among the branches.
Literature states spaghetti bryozoan is likely an introduction. The species shows worldwide distribution.
Organism was identified as Zoobotryon pellucidum in the past - Hedgepeth et al 1968, Between Pacific Tides, stated "A southern form, known from San Diego Bay only, is the soft Zoobotryon pellucidum, which forms great, flexible, treelike masses."
five photos contributed
The first and second photos show brown branching organism "in situ" attached to floating dock edge. Bryozoan was photographed by peering over the dock edge as strong morning sunlight was streaming at an angle into the water and lighting up the dock fouling community. Some sunlight on water reflected off the water onto the photos.
The third photo of collected colony placed in plastic tank with overhead photography.
The fourth and fifth photos were taken on 20 Sep 2013 at same location but with a close-up setup on camera. Close-up photos depict branch detail, displaying trifurcate branching.
On a washed up kelp holdfast.
The Bryozoa, also known as Polyzoa, Ectoprocta or commonly as moss animals, are a phylum of aquatic invertebrate animals. Typically about 0.5 millimetres (0.020 in) long, they are filter feeders that sieve food particles out of the water using a retractable lophophore, a "crown" of tentacles lined with cilia. Most marine species live in tropical waters, but a few occur in oceanic trenches, and others are found in polar waters. One class lives only in a variety...