Abbreviations used:

[B.]: found in the Baltic Sea.
[Oreg.]: found in Other regions
[Exp.]: found in Experimental studies.

Notes:

1. Species links contain full entries
2. Other links include full bibliographic reference(s)
3. For explanation see Database Help


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Gulf of Riga/taxon: Hydrozoa

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Alien species
name		 First observed Taxon Ecofunctional
group		 Origin Vector of
introduction		 Salinity range
in native habitats		 Ecological
impact		 Impact
on uses/resources
Cordylophora caspia1803 **Hydrozoa Benthic suspension feeders
Ponto-Caspian
Shipping
Limnetic to EuhalineBenthic-pelagic interaction [Oreg.]
Bioacummulation [Exp.]
Community dominance [B.]
Competition [B., Oreg.]
Habitat change [B., Oreg.]
Predation [B., Oreg.]
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The mark ** next to the year means, that only decade (sometimes even century) is known.