Invasive alien species in Switzerland - Schweizer ...
Invasive alien species in Switzerland - Schweizer ...
Invasive alien species in Switzerland - Schweizer ...
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An <strong>in</strong>ventory of <strong>alien</strong> <strong>species</strong> and their threat to biodiversity and economy <strong>in</strong> <strong>Switzerland</strong> FOEN 2006 62<br />
Tab. 2.7 > Alien fish <strong>species</strong> <strong>in</strong> <strong>Switzerland</strong>.<br />
Scientific name Family Orig<strong>in</strong> Year Pathway Impact Note<br />
Aristichthys nobilis Richardson Cypr<strong>in</strong>idae Ch<strong>in</strong>a ? Released for fish<strong>in</strong>g Changes of community and habitat? Appendix 3<br />
<strong>species</strong><br />
Aspius aspius (L.) Cypr<strong>in</strong>idae Central and 1994 Released for fish<strong>in</strong>g <strong>in</strong> Harmless Not <strong>in</strong> the<br />
eastern Europe Germany Appendixes<br />
Migration through new<br />
canal systems<br />
Carassius auratus (L.) Cypr<strong>in</strong>idae Central and ? Released and escaped; Competition with native fish Appendix 2<br />
eastern Asia imported as ornamental <strong>species</strong>? <strong>species</strong><br />
fish Community changes by <strong>in</strong>creas<strong>in</strong>g<br />
water turbidity?<br />
Carassius carassius (L.) Cypr<strong>in</strong>idae Europe ? Released for fish<strong>in</strong>g Competition with native fish Appendix 2<br />
Bait fish <strong>species</strong>? <strong>species</strong><br />
Community changes by <strong>in</strong>creas<strong>in</strong>g<br />
water turbidity?<br />
Carassius gibelio (Bloch) Cypr<strong>in</strong>idae Probably Asia ? Released for fish<strong>in</strong>g Competition with native fish Appendix 2<br />
<strong>species</strong>? <strong>species</strong><br />
Community changes by <strong>in</strong>creas<strong>in</strong>g<br />
water turbidity?<br />
Ctenopharyngodon idella (Cuvier Cypr<strong>in</strong>idae Ch<strong>in</strong>a ? Aquaculture Can change the ecosystem by Appendix 3<br />
& Valenciensis) Released to control remov<strong>in</strong>g aquatic plants <strong>species</strong><br />
aquatic vegetation<br />
Hypophthalmichthys molitrix Cypr<strong>in</strong>idae Ch<strong>in</strong>a 1970 Released for control of Community and food-web changes Appendix 3<br />
(Valenciensis) phytoplankton by feed<strong>in</strong>g on phytoplankton <strong>species</strong><br />
Pseudorasbora parva (Temm<strong>in</strong>ck Cypr<strong>in</strong>idae East Asia 1990 Accidental <strong>in</strong>troductions Community and food-web changes Appendix 3<br />
& Schlegel) with other cypr<strong>in</strong>id imports by selective feed<strong>in</strong>g on zooplankton <strong>species</strong><br />
Chances <strong>in</strong> water chemistry<br />
No commercial value<br />
Ameiurus melas and A. nebulosus Ictaluridae Central and ? Aquaculture Predator Appendix 3<br />
(Le Sueur) eastern North Aquarium releases Competition with native fish <strong>species</strong> <strong>species</strong><br />
America Little commercial value<br />
Lepomis gibbosus (L.) Centrarchidae Eastern North ? Ornamental reasons Predator of small <strong>in</strong>vertebrates and Appendix 3<br />
America Released for fish<strong>in</strong>g vertebrates <strong>species</strong><br />
Micropterus salmoides (Lacé- Centrarchidae Central and ? Released for fish<strong>in</strong>g Decl<strong>in</strong>e of native fish <strong>species</strong> Appendix 3<br />
pède) eastern North <strong>species</strong><br />
America<br />
Sander lucioperca (L.) Percidae Central and ? Released for fish<strong>in</strong>g Ferocious predator Appendix 2<br />
eastern Europe <strong>species</strong><br />
Oncorhynchus mykiss Walbaum Salmonidae North America 1887 Released for fish<strong>in</strong>g Predator of native fish and am- Appendix 2<br />
Stock from Aquaculture phibians <strong>species</strong><br />
Germany Competition with native salmonids<br />
Salvel<strong>in</strong>us font<strong>in</strong>alis (Mitchill) Salmonidae Eastern parts of 1883 Released for fish<strong>in</strong>g Competition with native salmonids Appendix 2<br />
North America Aquaculture <strong>species</strong><br />
Stock from<br />
Germany<br />
Salvel<strong>in</strong>us namaycush (Walbaum) Salmonidae North America 1888 Released for fish<strong>in</strong>g Predator of native fish Appendix 2<br />
Competition with native salmonids <strong>species</strong>