|
|
Description:
Schizoporella floridana
colonies are encrusting, and appear in a variety of forms: unilaminar, multilaminar, foliacious, or tubular. Zooids are rectangular in
shape and measure an average of 0.02 X 0.01 inches. Specimens from the Indian River
Lagoon are heavily calcified, granular in texture, and have a number of large
pores perforating the calcification.
Avicularia are rounded at the base, with pointed mandibles, and may occur singly
or in pairs just under the orifice. The horseshoe-shaped lophophore
surrounding the mouth measures approximately 0.02 inches in diameter and bears an average of
17 tentacles.
Habitat:
Typical habitats for bryozoans in the Indian River
Lagoon include seagrasses, mangrove roots, drift algae, oyster reef, dock,
pilings, breakwaters, and man-made debris. In the Indian River
Lagoon, S. floridana was typically found
encrusting the seagrass Thalassia. However,
colonies settling on Thalassia tend to remain small, and do not become
multiserial. S. floridana does not routinely occur along Florida's
east coast. Further, the
massive, coral-like colonies S. floridana is reported to form along the
Gulf coast of Florida, do not form in the Indian River Lagoon.
Range:
Schizoporella floridana occurs
from Beaufort, North Carolina to the
Caribbean. It is likely to be found throughout the Indian
River Lagoon in association with seagrass beds, especially Thalassia.
|
 |
Calcified skeleton of Schizoporella floridana
showing zooid structure. Photo courtesy of K. Hill, Smithsonian Marine
Station.
|
 |
Photo of Schizoporella floridana, an
encrusting bryozoan. Photo by J. Winston, courtesy of the American Museum of Natural History. Used
with permission.
|
| |

Schizoporella floridana,
like all bryozoans, is a suspension feeder. Each individual zooid in a colony
has 17 ciliated tentacles that are extended to filter phytoplankton less than
1/1800 of an inch from the water column.
|
|