Other taxa ingested by fish examined include freshwater sponges
(Porifera), crustaceans (Ostracoda and Decapoda), water mites (Acarina), and four worm phyla (Table 1).
Fossil freshwater sponges
(Porifera: Spongillidae) from Western Canada: an overlooked group of quaternary paleoecological indicators.
Because the tubes were formed of fibrous materials, Barbour assumed Daemonelix were the roots of fossilized plants, perhaps the remains of giant freshwater sponges
. Much of what became the Great Plains of the United States was once underwater, after all.
Species richness of freshwater sponges
(Class Demospongiae) is greater in eastern than in western North America (Reiswig et al., 2010), which likely explains the paucity of information regarding freshwater sponge
distribution and life-history information within the western gulf slope drainages of Louisiana, Texas, and New Mexico.
Little has been reported about the occurrence of freshwater sponges
in Nebraska and no publications have previously recorded from central Nebraska waters.
KEYWORDS / Biological Silica / Freshwater Sponges
/ Hydroelectric Reservoirs / Silica / Skin Irritation / Sponges /
These samples were examined for 1) freshwater sponges
, which were identified to species, and 2) silicious spicules (gemmoscleres) of these sponges; details of the methods and results of this sampling have been published (6,7).
The filtration apparatus for food collection in freshwater sponges
The distribution and taxonomy of freshwater sponges
(Porifera: Spongillidae) in North America has not received widespread attention, although some notable works exist for the entire United States (Penney & Racek 1968), and regions surrounding the Great Lakes (Potts 1887; Smith 1921; Old 1931; Jewell 1935; Neidhoefer 1940; Eshleman 1950; Ricciardi & Reiswig 1993).
Living beneath overhangs of the reefs are aquatic mosses and freshwater sponges
Fish and Wildlife Service noted the limitations of existing knowledge in its mid1970's review of freshwater sponges
. In addition Watermolen (2008) noted conservationists have done little since that initial assessment to monitor or further evaluate the status of freshwater sponges
Acute Conjunctivitis with Episcleritis and Anterior Uveitis Linked to Adiaspiromycosis and Freshwater Sponges
, Amazon Region, Brazil, 2005