New record of the parthenogenetic marbled crayfish Procambarus fallax f. virginalis from Italy

New record of the parthenogenetic marbled crayfish Procambarus fallax f. virginalis from Italy INTRODUCTION The marbled crayfish, Procambarus fallax (Hagen, 1870) f. virginalis , is a relatively small-sized species, usually up to 10 cm in total body length. This crayfish, often also known as ‘Marmorkrebs’, is remarkable for having obligate parthenogenetic reproduction (Scholtz et al., 2002). The first reproduction in the marbled crayfish usually occurs in 5-6-month-old individuals with a carapace length of at least 40 mm (Vogt, 2008). They live for a maximum of 3 or 4 years (Vogt et al., 2004), and reproduce approximately every three months at temperatures between 20 and 25°C (Seitz et al., 2005). Chucholl & Pfeiffer (2010) found females in the wild carrying up to 724 eggs. The marbled crayfish first appeared in Germany in the 1990s as a traded species. It is still available through the aquarium trade in Europe (Scholz et al., 2002; Holdich et al., 2009) and, since 2004, in North America as well (Faulkes, 2010). This popular crayfish was often released into the wild and subsequently re-captured, many times outside its previously-known species range. Chucholl et al. (2012) pointed out that in Europe the majority of records come from Germany. Other European records are known from the Netherlands, Sweden, Slovakia, and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

New record of the parthenogenetic marbled crayfish Procambarus fallax f. virginalis from Italy

Crustaceana, Volume 87 (11-12): 1386 – Jan 1, 2014

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Publisher
Brill
Copyright
Copyright 2014 by Koninklijke Brill NV, Leiden, The Netherlands.
Subject
Articles
ISSN
0011-216x
eISSN
1568-5403
D.O.I.
10.1163/15685403-00003365
Publisher site
See Article on Publisher Site

Abstract

INTRODUCTION The marbled crayfish, Procambarus fallax (Hagen, 1870) f. virginalis , is a relatively small-sized species, usually up to 10 cm in total body length. This crayfish, often also known as ‘Marmorkrebs’, is remarkable for having obligate parthenogenetic reproduction (Scholtz et al., 2002). The first reproduction in the marbled crayfish usually occurs in 5-6-month-old individuals with a carapace length of at least 40 mm (Vogt, 2008). They live for a maximum of 3 or 4 years (Vogt et al., 2004), and reproduce approximately every three months at temperatures between 20 and 25°C (Seitz et al., 2005). Chucholl & Pfeiffer (2010) found females in the wild carrying up to 724 eggs. The marbled crayfish first appeared in Germany in the 1990s as a traded species. It is still available through the aquarium trade in Europe (Scholz et al., 2002; Holdich et al., 2009) and, since 2004, in North America as well (Faulkes, 2010). This popular crayfish was often released into the wild and subsequently re-captured, many times outside its previously-known species range. Chucholl et al. (2012) pointed out that in Europe the majority of records come from Germany. Other European records are known from the Netherlands, Sweden, Slovakia, and

Journal

CrustaceanaBrill

Published: Jan 1, 2014

References

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