Anisus vorticulus

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Anisus vorticulus
Anisus vorticulus.jpg
Shells of Anisus vorticulus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily: Planorboidea
Family: Planorbidae
Subfamily: Planorbinae
Tribe: Planorbini
Genus: Anisus
Subgenus: Disculifer
Species: A. vorticulus
Binomial name
Anisus vorticulus
(Troschel, 1834)[2]

The lesser ramshorn snail, Anisus vorticulus, is a species of minute, air-breathing, freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ramshorn snails.

Distribution[edit]

This species is mentioned in annexes II and IV of the Habitats Directive.

It occurs in:

Habitat[edit]

This small snail lives in pools with standing water and in oxbow lakes, but these biotopes are threatened because of sedimentation and ecological succession.[10]

In the Czech Republic this species usually lives in biotopes where there are lots of Lemna trisulca.[10]

Water quality that is suitable for Anisus vorticulus is water without turbidity; with a pH from 7 to 7,5; with calcium from 40 to 400 mg/l and with electrical conductivity from 200 to 1100 mS/m.[10]

References[edit]

  1. ^ Van Damme D. (2012). "Anisus vorticulus". The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 22 February 2015.
  2. ^ Troschel F. H. (1834). De limnaeaceis seu de gasteropodis pulmonatis quae nostris in aquis vivunt. pp. [1-5], 1-65, [1]. Berolini. page 51.
  3. ^ a b (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.
  4. ^ Juřičková L., Horsák M. & Beran L. (2001) "Check-list of the molluscs (Mollusca) of the Czech Republic". Acta Societatis Zoologicae Bohemicae 65: 25-40.
  5. ^ (Czech) Dušek J., Hošek M. & Kolářová J. (2007) "Hodnotící zpráva o stavu z hlediska ochrany evropsky významných druhů a typů přírodních stanovišť v České republice za rok 2004-2006". Ochrana přírody 62(5): appendix 5:I-IV.
  6. ^ UK Biodiversity Action Plan "Archived copy". Archived from the original on 2007-06-25. Retrieved 2007-03-05. 
  7. ^ (German) Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2.
  8. ^ (Dutch) http://www.anemoon.org/anm/voorlopige-kaarten/zoetwatermollusken/wetenschappelijk/anisus-vorticulus
  9. ^ Beran L. (2009). "The first record of Anisus vorticulus (Troschel, 1834) (Gastropoda: Planorbidae) in Croatia?". Malacologica Bohemoslovaca 8: 70. PDF.
  10. ^ a b c (Czech) Agentura ochrany přírody a krajiny ČR (August 2007) Obecné charakteristiky předmětů ochrany v rizikových chráněných územích a návrhy hodnot indikačních parametrů a managementových opatření. skupina: KORÝŠI A MĚKKÝŠI. online, PDF[permanent dead link] Accessed 24 November 2009.

External links[edit]