Depressed river mussel
| Depressed river mussel | |
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| File:Pseudanodonta complanata - showing rugae.jpg | |
| Left valve of Pseudanodonta complanata showing close-up of rugae on the umbo | |
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P. complanata
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| Binomial name | |
| Pseudanodonta complanata Rossmässler, 1835
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The depressed river mussel or compressed river mussel, Pseudanodonta complanata, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. The species name comes from the flattened shape of its shell.
This species is found throughout northern Europe, but it is endangered throughout its range.
While the survival of this species is thought to be threatened by pollution and the dredging of the slow-moving channels of water in which it lives, the species is also said to be "easily overlooked" (it can be confused with Anodonta anatina or juvenile Anodonta cygnea) and thus it may be actually be more prevalent than current records show.
Distribution
Its native distribution is European. It has been recorded from:
- Czech Republic - in Bohemia, in Moravia,[2] endangered (EN). It is endangered in Bohemia and critically endangered in Moravia.[3][4]
- Estonia - present.
- Finland - not uncommon.
- Germany
- critically endangered (vom Austerben bedroht)[5]
- Listed as strictly protected species and as specially protected species in annex 1 in Bundesartenschutzverordnung.
- Netherlands - present[6]
- Poland - endangered[7]
- Slovakia[2] - endangered[8]
- United Kingdom - see Action plan for Pseudanodonta complanata, (British Isles - listed in List of endangered species in the British Isles)
- Sweden - rare[9]
References
- Polish Red Data Book of Animals: Pseudanodonta complanata
- Action plan for Pseudanodonta complanata
- Nature Navigator: Detail of Depressed River Mussel
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 (Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
- ↑ Juřičková L., Horsák M. & Beran L., 2001: Check-list of the molluscs (Mollusca) of the Czech Republic. Acta Soc. Zool. Bohem., 65: 25-40.
- ↑ Red List of the molluscs (Mollusca) of the Czech Republic http://mollusca.sav.sk/malacology/redlist.htm
- ↑ (German) Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, strana 109, ISBN 3-923376-02-2
- ↑ http://www.anemoon.org/anm/voorlopige-kaarten/zoetwatermollusken/wetenschappelijk/pseudanodonta-complanata/
- ↑ Pseudanodonta complanata - Polish Red Data Book of Animals
- ↑ (Czech) Měkkýši (Mollusca) České republiky a Slovenska
- ↑ [1] cited February 16 2007
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