Striped nerite
| Striped nerite | |
|---|---|
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| Five shells of Theodoxus transversalis | |
| Scientific classification | |
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| Species: | T. transversalis
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| Binomial name | |
| Theodoxus transversalis | |
The striped nerite, scientific name Theodoxus transversalis, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.
Distribution
The distribution of this species is Danubian.[3]
Fehér et al. (2012)[4] revealed in their conservation genetics study, that intraspecific variability of two researched DNA markers (cytochrome c oxidase subunit I and ATP synthase subunit α) is very low.[4] They hypothetized, that bottlenecked population colonized the whole range of Theodoxus transversalis in Holocene.[4] Fehér et al. (2012) also hypothetized, that such low genetic diversity caused the high sensitivity of Theodoxus transversalis to water quality.[4] Theodoxus transversalis was widespread in Danubian drainage,[4] but population of this species declined because of water pollution and this species is considered as endangered.[1] It is also listed in the Annexes II and IV of the Habitats Directive.[4]
It occurs in:
- Austria
- Bulgaria
- Croatia
- Germany - in Bavaria only and it is critically endangered (vom Aussterben bedroht)[5]
- Slovakia[6]
- Hungary
- Moldova
- Romania
- Serbia and Montenegro
- Ukraine
References
- ^ a b Template:IUCN
- ^ Pfeiffer L. (1828). Naturgeschichte deutscher Land- und Süsswasser-Mollusken. Dritte Abtheilung. pp. I-VI [= 1-6], 1-84, Taf. I-VIII [= 1-8]. Weimar. (Landes-Industrie-Comptoir).
- ^ (in Slovak) Lisický M. J. (1991). Mollusca Slovenska [The Slovak molluscs]. VEDA vydavateľstvo Slovenskej akadémie vied, Bratislava, 344 pp.
- ^ a b c d e f Fehér Z., Albrecht C., Major Á., Sereda S. & Kríszik V. (2012). "Extremely low genetic diversity in the endangered striped nerite, Theodoxus transversalis (Mollusca, Gastropoda, Neritidae) – a result of ancestral or recent effects?". North-Western Journal of Zoology 8(2): 300-307. PDF.
- ^ Peter Glöer; Claus Meier-Brook; Olaf Ostermann (1992). Süsswassermollusken: ein Bestimmungsschlüssel für die Bundesrepublik Deutschland. p. 134. ISBN 978-3-923376-02-5.
- ^ Template:Cs icon 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.