Issue Cover image

You need to login to your IAA account in order to access jounral PDFs.
Member Login
logo

Freshwater Crayfish 12(1): 786-790 (1999)

PEER REVIEWED    RESEARCH ARTICLE

Download: PDF (410 KB)

Notes on the occurrence of the calico crayfish (Orconectes immunis) in Germany

Dehus P, Dussling U and Hoffmann C  e-mail link

Published Online:

Abstract

In a small canal in the Rhine Valley near Karlsruhe, Germany, a population of Orconectes immunis (Hagen, 1870) was detected in autumn 1997. This is the first documented record of the calico crayfish in Germany and, as far as known, even in Europe. Detailed search in this area showed that the crayfish regularly occurred only in this canal. The canal is approximately 3 m wide and 0.4 m deep and its bottom is mostly sandy and muddy. Crayfish were found mainly under stones and wood and among submerged macrophytes. The carapace length of the crayfish ranged from 8 to 37 mm. The male-female relation was nearly 1:1 in the different length groups. The origin of O. immunis found in the Rhine Valley is unclear. Probably it was imported by the aquarium trade as a pet and then released.

Supplemental Documents

  • There are no supplementary documents for this article

CrossRef Logo

Cited By

Citations:

How to Cite

Dehus P, Dussling U and Hoffmann C. (1999). Notes on the occurrence of the calico crayfish (Orconectes immunis) in Germany. Freshwater Crayfish 12(1):786-790. doi:

 

 

Author Information

Authorship information for this paper are currently unavailable.

 

Publication History

   Manuscript Submitted:

   Manuscript Accepted:

   Published Online:

   Published in Print:

 

 

Funding Information

No specific funding statement is available for this article.

 

 



 

 

 

Member Login

Forgot Your Password?

Recover PW

Enter the e-mail address you used to
create your IAA account.
Return to Login