| Bryozoans | Amathia distans | |
| Bryozoans | Amathia verticillata | |
| Crustaceans-Barnacles | Amphibalanus amphitrite | |
| Algae | Antithamnionella spirographidis* | |
| Tunicates | Ascidiella aspersa | |
| Entoprocts | Barentsia benedeni | |
| Tunicates | Botryllus schlosseri | |
| Bryozoans | Bowerbankia gracilis | |
| Bryozoans | Bugula neritina | |
| Bryozoans | Bugulina flabellata | |
| Bryozoans | Bugulina simplex | |
| Bryozoans | Bugulina stolonifera | |
| Crustaceans-Crabs | Carcinus maenas | |
| Algae | Caulerpa taxifolia (invasive genotype) | |
| Tunicates | Ciona robusta | |
| Algae | Codium fragile ssp. Fragile | |
| Cnidarians-Hydrozoans | Cordylophora caspia | |
| Bryozoans | Cryptosula pallasiana | |
| Algae | Elachista nigra | |
| Crustaceans-Isopods | Eurylana arcuata | |
| Cnidarians-Anthozoans | Exaiptasia pallida | |
| Algae | Leptosiphonia brodiei* | |
| Crustaceans-Amphipods | Monocorophium acherusicum | |
| Mollusks-Gastropods | Myosotella myosotis | |
| Crustaceans-Isopods | Paracerceis sculpta | |
| Mollusks-Gastropods | Polycera hedgpethi | |
| Annelids-Polychaetes | Polydora cornuta | |
| Annelids-Polychaetes | Polydora hoplura | |
| Annelids-Polychaetes | Pseudopolydora paucibranchiata | |
| Bryozoans | Schizoporella unicornis | |
| Algae | Stictyosiphon soriferus* | |
| Algae | Striaria attenuata* | |
| Tunicates | Styela plicata | |
| Mollusks-Bivalves | Teredo navalis | |
| Mollusks-Gastropods | Thecacera pennigera | |
| Bryozoans | Watersipora arcuata | |
| Bryozoans | Watersipora subtorquata | |