| Land | Functional Groups | Familie | Naam | |
|---|---|---|---|---|
| Canada | echinoderms | sea stars | Asteriidae | Leptasterias polaris |
| USA | mollusks | gastropods | Melongenidae | Busycon carica |
| USA | mollusks | gastropods | Melongenidae | Busycotypus canaliculatus |
| USA | crustaceans | crabs | Portunidae | Carcinus maenas |