Anisus vorticulus

Anisus vorticulus
Shells of Anisus vorticulus
Conservation status
NE[1]
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)

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

Contents

Distribution

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

It occurs in:

Habitat

This small snail lives in pools with standing water and in oxbow lakes, but these biotopes are threatened because of sedimentation and ecological succession.[8]

In the Czech Republic this species usually lives in biotopes where there are lots of Lemna trisulca.[8]

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.[8]

References

  1. ^ (2006) IUCN Red List of Threatened Species. <www.iucnredlist.org>. Accessed 5 March 2007.
  2. ^ Juřičková L., Horsák M. & Beran L. (2001) "Check-list of the molluscs (Mollusca) of the Czech Republic". Acta Societatis Zoologicae Bohemicae 65: 25-40.
  3. ^ (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.
  4. ^ UK Biodiversity Action Plan http://www.ukbap.org.uk/UKPlans.aspx?ID=99
  5. ^ (German) Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2.
  6. ^ (Dutch) http://www.anemoon.org/anm/voorlopige-kaarten/zoetwatermollusken/wetenschappelijk/anisus-vorticulus
  7. ^ Beran L. (2009). "The first record of Anisus vorticulus (Troschel, 1834) (Gastropoda: Planorbidae) in Croatia?". Malacologica Bohemoslovaca 8: 70. PDF.
  8. ^ 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 Accessed 24 November 2009.

External links