On the Distribution of Alien Non-Manne and Estuarine Macro-Crustaceans M Belgium by Karel WOUTERS
BULLETIN DE L'lNSTITUT ROYAL DES SCIENCES NATURELLES DE BELGIQUE, BIOLOGIE, 72: 119-129,2002 BULLETIN VAN HET KONINKLIJK BELGISCH INSTITUUT VOOR NATUURWE1ENSCHAPPEN, BIOLOGIE, 72: 119-129, 2002 On the distribution of alien non-manne and estuarine macro-crustaceans m Belgium by Karel WOUTERS Abstract gists (personal communications). The present paper was pro posed as a poster during the Symposium "Status and trends The distributions of fifteen species of macroscopic crustaceans liv of the Belgian fauna with particular emphasis on exotic spe ing in non-marine and estuarine environments in Belgium are dis cies", held in the Royal Belgian Institute of Natural Sciences, cussed. The species in question are: the conchostracan Leptestheria Brussels, on 14 December 2001 (WOUTERS, 2002), dahalacensis, the amphipods Gammarus tigrinus, Echino gammarus berilloni, Dikerogammarus villosus, Corophium curvispinum, Crangonyx pseudogracilis and Orchestia cavimana, Species accounts the atyid shrimp Atyaephyra desmaresti, the crayfish Astacus leptodactylus, Pacifastacus feniusculus and Orconectes fimosus and the crabs Caflinectes sapidus, Eriocheir sinensis and SUB PHYLUM Crustacea PENNANT, 1777 Rhithropanopeus harrisii. CLASS Branchiopoda LATREILLE, 1817 ORDER Conchostraca SARS, 1867 Key-words: alien species, Belgium, cartography, faunistics, Crus FAMILY Leplcslheriidae DADAY, 1923 tacea. Resume Leptestheria dahalacensis (RDPPEL, 1837) (Fig. 1) Les distributions de quinze espfxes de macro-crustaces exotiques vivant dans des milieus non-marins et estuariens en Belgique sont The species was collected on 26 October and 8 November discutees. Les cpCccs en question sont: le conch os trace Leptestheria 1988 (BRENDONCK et al., 1989) in a fishpond in Heverlee dahalacensis, les amphipodcs Gammarus tigrinus, Echino (Park Abbey). This Belgian locality should not be considered gammarus berilloni, Dikeroganunarus vi!losus, Corophiwn a natural range extension, because L.
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