Cristatella

Cristatella mucedo is a bryozoan in the family Cristatellidae, and the only species of the genus Cristatella.[1][2]

Cristatella
Scientific classification
Kingdom:
Animalia
Phylum:
Bryozoa
Class:
Phylactolaemata
Family:
Cristatellidae

Allman, 1856
Genus:
Cristatella

Cuvier, 1798
Species:
C. mucedo
Binomial name
Cristatella mucedo
Cuvier, 1798

Distribution

The species can be found in north-eastern North America (Canada,[3] and United States), Northern Europe, including United Kingdom, Norway, Finland, and the Netherlands from sea level to 1,116 metres (3,661 ft) asl.[4]

Habitat and ecology

The species prefers cold climate waters. They live in statoblastic colonies.[5] The habitat is either lotic or lentic,[6] including man-made water bodies such as gravel pits.

Populations in Europe are genetically relatively homogeneous, perhaps reflecting postglacial colonization representing a single lineage. In contrasts, North American populations are highly diverse. There is some evidence of two different major lineages, perhaps representing cryptic species or subspecies, with hybridization that have boosted genetic diversity.[7]

Cristatella mucedo creeping over a stem of water weed; a) polypides with horseshoe-shaped crown of tentacles b) statoblasts seen through the tissues c) muscular sole by means of which the animal creeps d) stem of water weed
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References
  1. Cristatella mucedo
  2. Bock, P. (2015). Bock P (ed.). "Cristatella Cuvier, 1798". World list of Bryozoa. World Register of Marine Species. Retrieved 30 August 2016.
  3. "Species list of Albertas bryozoans on Aquatic Invertebrates of Alberta". Archived from the original on 2014-06-07. Retrieved 2012-02-12.
  4. Økland, Karen Anna & Økland, Jan (2000). "Freshwater bryozoans (Bryozoa) of Norway: Distribution and ecology of Cristatella mucedo and Paludicella articulata". Hydrobiologia. 421 (1): 1–24. doi:10.1023/A:1003917200848.
  5. Michiel van der Waaij (July 2009). "Freshwater bryozoans or moss animals". Micscape. Microscopy UK. Retrieved 2012-02-13.
  6. Uotila, Laura & Jokela, Jukka (1995). "Variation in reproductive characteristics of colonies of the freshwater bryozoan Cristatella mucedo". Freshwater Biology. 34 (3): 513–522. doi:10.1111/j.1365-2427.1995.tb00909.x.
  7. Freeland, Joanna R.; Romualdi, Chiara & Okamura, Beth (2000). "Gene flow and genetic diversity: a comparison of freshwater bryozoan populations in Europe and North America". Heredity. 85 (5): 498–508. doi:10.1046/j.1365-2540.2000.00780.x.


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