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  -Environment and invasion history-  

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Total number of alien species found: 30 r.jpg (752 bytes)


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Number of established alien species: 26 r.jpg (752 bytes)


Number of alien species according to:


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Major taxonomic groups r.jpg (752 bytes)
Crustacea: 14
Dinophycea: 1
Hydrozoa: 1
Mollusca: 4
Nematoda: 1
Pisces: 8
Polychaeta: 1

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Area of origin r.jpg (752 bytes)
Asia, Siberia (inland waters): 3
China Seas: 1
Indo-Pacific: 1
North America: 6
Pacific: 2
Ponto-Caspian: 16
Unknown: 1

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Ecological impact r.jpg (752 bytes)
Benthic-pelagic interaction: 9
Bioacummulation: 9
Community dominance: 16
Competition: 20
Food-prey: 20
Habitat change: 10
Herbivory: 9
Hybridization: 8
Parasitism: 1
Predation: 12
Toxicity: 1
Transfer of parasites and diseases: 9




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Eco-functional groups r.jpg (752 bytes)
Benthic deposit feeders: 4
Benthic omnivors: 3
Benthic suspension feeders: 5
Fish bentophagous: 2
Fish planktivorous: 1
Fish predacious: 5
Invertebrate parasites: 1
Nekto-benthic invertebrates: 8
Phytoplankton autotrophs: 1
Zooplankton predators: 1

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Introduction vectors r.jpg (752 bytes)
Associated: 1
Shipping: 14
Stocking: 15
Unknown: 1

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Economical impact r.jpg (752 bytes)
Comming soon.
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