Gulf of Riga
-Environment and invasion history-
Total number of alien species found:
26
Number of established alien species:
16
Number of alien species according to:
Major taxonomic groups
Characea:
1
Crustacea:
7
Hydrozoa:
1
Mollusca:
3
Pisces:
13
Polychaeta:
1
Area of origin
Asia, Siberia (inland waters):
7
China Seas:
1
Indo-Pacific:
1
North America:
5
Pacific:
2
Ponto-Caspian:
10
West Europe (inland waters):
1
Ecological impact
Benthic-pelagic interaction:
10
Bioacummulation:
9
Community dominance:
11
Competition:
18
Food-prey:
16
Habitat change:
8
Herbivory:
7
Hybridization:
6
Predation:
9
Transfer of parasites and diseases:
6
Unknown:
1
Eco-functional groups
Benthic deposit feeders:
2
Benthic omnivors:
1
Benthic suspension feeders:
5
Fish bentophagous:
2
Fish planktivorous:
5
Fish predacious:
6
Macrophytes:
1
Nekto-benthic invertebrates:
2
Zooplankton predators:
2
Zooplankton suspension feeders:
1
Introduction vectors
Shipping:
13
Stocking:
12
Economical impact
Comming soon.
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