| Fishes | Acanthogobius flavimanus | 1978 | Definite | Estab | |
| Annelids-Polychaetes | Alitta succinea | 1952 | Definite | Estab | |
| Bryozoans | Amathia dichotoma* | 2017 | Definite | Estab | |
| Bryozoans | Amathia verticillata | 1980 | Definite | Estab | |
| Annelids-Polychaetes | Amblyosyllis nigrolineata | 2000 | Definite | Estab | |
| Crustaceans-Barnacles | Amphibalanus amphitrite | 1914 | Definite | Estab | |
| Crustaceans-Barnacles | Amphibalanus eburneus | 2000 | Definite | Estab | |
| Crustaceans-Amphipods | Ampithoe valida | 2001 | Definite | Estab | |
| Bryozoans | Anguinella palmata | 1934 | Definite | Estab | |
| Crustaceans-Amphipods | Aoroides secunda | 2000 | Definite | Estab | |
| Tunicates | Aplidium accarense* | 2019 | Definite | Estab | |
| Mollusks-Bivalves | Arcuatula senhousia | 1998 | Definite | Estab | |
| Tunicates | Ascidia zara | 1984 | Definite | Estab | |
| Tunicates | Ascidiella aspersa | 2018 | Definite | Estab | |
| Cnidarians-Scyphozoans | Aurelia coerulea | 2000 | Definite | Estab | |
| Tunicates | Botrylloides diegensis | 2003 | Definite | Estab | |
| Tunicates | Botrylloides giganteus | 2003 | Definite | Estab | |
| Tunicates | Botrylloides violaceus | 1994 | Definite | Estab | |
| Tunicates | Botryllus schlosseri | 1994 | Definite | Estab | |
| Protozoans | Boveria teredinidi* | 1951 | Definite | Estab | |
| Annelids-Polychaetes | Branchiomma SF1* | 2017 | Definite | Estab | |
| Algae | Bryopsis sp. 1* | 2011 | Definite | Estab | |
| Bryozoans | Bugula neritina | 1961 | Definite | Estab | |
| Bryozoans | Bugulina cf. foliolata | 2000 | Definite | Estab | |
| Bryozoans | Bugulina stolonifera | 1972 | Definite | Estab | |
| Crustaceans-Isopods | Caecijaera horvathi | 1950 | Definite | Estab | |
| Crustaceans-Amphipods | Caprella mutica | 2000 | Definite | Estab | |
| Crustaceans-Amphipods | Caprella scaura | 2001 | Definite | Estab | |
| Crustaceans-Amphipods | Caprella simia | 2000 | Definite | Estab | |
| Sponges | Chalinula loosanoffi* | 2001 | Definite | Estab | |
| Crustaceans-Amphipods | Chelura terebrans | 1950 | Definite | Estab | |
| Tunicates | Ciona robusta | 1955 | Definite | Estab | |
| Tunicates | Ciona savignyi | 1985 | Definite | Estab | |
| Algae | Colpomenia claytoniae | 2010 | Definite | Estab | |
| Crustaceans-Amphipods | Corophium alienense | 2007 | Definite | Estab | |
| Crustaceans-Amphipods | Corophium heteroceratum | 1990 | Definite | Estab | |
| Bryozoans | Cryptosula pallasiana | 1962 | Definite | Estab | |
| Cnidarians-Anthozoans | Diadumene franciscana | 2000 | Definite | Estab | |
| Cnidarians-Anthozoans | Diadumene leucolena | 1954 | Definite | Estab | |
| Cnidarians-Anthozoans | Diadumene lineata | 1973 | Definite | Estab | |
| Tunicates | Didemnum vexillum | 2018 | Definite | Estab | |
| Annelids-Polychaetes | Diplocirrus SD1 | 1998 | Definite | Estab | |
| Tunicates | Diplosoma listerianum | 1960 | Definite | Estab | |
| Cnidarians-Hydrozoans | Ectopleura crocea | 1902 | Definite | Estab | |
| Crustaceans-Amphipods | Eochelidium sp. A | 1993 | Definite | Estab | |
| Cnidarians-Anthozoans | Exaiptasia pallida | None | Definite | Estab | |
| Annelids-Polychaetes | Ficopomatus enigmaticus | 2000 | Definite | Estab | |
| Mollusks-Bivalves | Geukensia demissa | 1968 | Definite | Estab | |
| Algae | Gracilaria vermiculophylla | 2017 | Definite | Estab | |
| Crustaceans-Amphipods | Grandidierella japonica | 1998 | Definite | Estab | |
| Algae | Grateloupia turuturu | 2011 | Definite | Estab | |
| Sponges | Halichondria bowerbanki* | 2001 | Definite | Estab | |
| Annelids-Polychaetes | Heteromastus filiformis species complex | 2011 | Definite | Estab | |
| Sponges | Hymeniacidon perlevis* | 1924 | Definite | Estab | |
| Crustaceans-Amphipods | Jassa marmorata | 1958 | Definite | Estab | |
| Fishes | Lepomis cyanellus | 1895 | Definite | Estab | |
| Crustaceans-Amphipods | Leucothoe nagatai | None | Definite | Estab | |
| Crustaceans-Isopods | Limnoria quadripunctata | 1950 | Definite | Estab | |
| Crustaceans-Isopods | Limnoria tripunctata | 1871 | Definite | Estab | |
| Protozoans | Lobochona prorates* | 1963 | Definite | Estab | |
| Algae | Lomentaria hakodatensis* | 2000 | Definite | Estab | |
| Mollusks-Bivalves | Lyrodus pedicellatus | 1871 | Definite | Estab | |
| Mollusks-Bivalves | Magallana gigas | 2000 | Definite | Estab | |
| Annelids-Polychaetes | Megasyllis nipponica | 1998 | Definite | Estab | |
| Crustaceans-Amphipods | Melita rylovae | 2000 | Definite | Estab | |
| Tunicates | Microcosmus squamiger | 1986 | Definite | Estab | |
| Tunicates | Molgula ficus | 1995 | Definite | Estab | |
| Tunicates | Molgula manhattensis | 1984 | Definite | Estab | |
| Crustaceans-Amphipods | Monocorophium acherusicum | 1948 | Definite | Estab | |
| Crustaceans-Amphipods | Monocorophium insidiosum | 1950 | Definite | Estab | |
| Mollusks-Gastropods | Myosotella myosotis | 1915 | Definite | Estab | |
| Annelids-Polychaetes | Myrianida convoluta | None | Definite | Estab | |
| Annelids-Polychaetes | Myrianida pachycera | 2000 | Definite | Estab | |
| Annelids-Polychaetes | Myrianida pachycera | 2001 | Definite | Estab | |
| Annelids-Polychaetes | Myrianida pentadentata | 2001 | Definite | Estab | |
| Mollusks-Bivalves | Mytilus galloprovincialis | 1987 | Definite | Estab | |
| Annelids-Polychaetes | Neodexiospira brasiliensis | 1974 | Definite | Estab | |
| Annelids-Polychaetes | Nicolea sp. A. Harris | 2000 | Definite | Estab | |
| Bryozoans | Nolella sawayai* | 2018 | Definite | Estab | |
| Crustaceans-Copepods | Oithona davisae | 2001 | Definite | Estab | |
| Fishes | Oreochromis mossambicus | 1973 | Definite | Estab | |
| Algae | Pachymeniopsis lanceolata* | 2011 | Definite | Estab | |
| Crustaceans-Shrimp | Palaemon macrodactylus | 1962 | Definite | Estab | |
| Crustaceans-Amphipods | Paradexamine sp. SD1 | 2000 | Definite | Estab | |
| Crustaceans-Isopods | Paranthura japonica | 2000 | Definite | Estab | |
| Annelids-Polychaetes | Parasabella fullo | 2011 | Definite | Estab | |
| Mollusks-Bivalves | Petricolaria pholadiformis | 2017 | Definite | Estab | |
| Mollusks-Gastropods | Philine auriformis | 1998 | Definite | Estab | |
| Tunicates | Polyandrocarpa zorritensis | 1997 | Definite | Estab | |
| Annelids-Polychaetes | Polydora cornuta | 1952 | Definite | Estab | |
| Annelids-Polychaetes | Polydora hoplura | 2017 | Definite | Estab | |
| Mollusks-Gastropods | Potamopyrgus antipodarum | 2015 | Definite | Estab | |
| Crustaceans-Copepods | Pseudodiaptomus marinus | 2001 | Definite | Estab | |
| Annelids-Polychaetes | Pseudopolydora cf. kempi | 1972 | Definite | Estab | |
| Annelids-Polychaetes | Pseudopolydora paucibranchiata | 1951 | Definite | Estab | |
| Mollusks-Bivalves | Ruditapes philippinarum | 1998 | Definite | Estab | |
| Algae | Sargassum horneri | 2003 | Definite | Estab | |
| Algae | Sargassum muticum | 1973 | Definite | Estab | |
| Bryozoans | Schizoporella japonica | 2017 | Definite | Estab | |
| Crustaceans-Isopods | Sphaeroma quoianum | 1927 | Definite | Estab | |
| Crustaceans-Amphipods | Stenothoe valida | 1951 | Definite | Estab | |
| Annelids-Polychaetes | Streblospio benedicti | 1952 | Definite | Estab | |
| Tunicates | Styela canopus | 1998 | Definite | Estab | |
| Tunicates | Styela clava | 1994 | Definite | Estab | |
| Tunicates | Styela plicata | 1960 | Definite | Estab | |
| Tunicates | Symplegma reptans | 1991 | Definite | Estab | |
| Mollusks-Gastropods | Tenellia adspersa | 1968 | Definite | Estab | |
| Mollusks-Bivalves | Teredo bartschi | 2000 | Definite | Estab | |
| Arthropoda-Insects | Thambemyia borealis* | 1993 | Definite | Estab | |
| Mollusks-Bivalves | Theora lubrica | 1969 | Definite | Estab | |
| Fishes | Tridentiger trigonocephalus | 1960 | Definite | Estab | |
| Protozoans | Trochammina hadai* | 1998 | Definite | Estab | |
| Annelids-Oligochaetes | Tubificoides brownae* | 1994 | Definite | Estab | |
| Algae | Undaria pinnatifida | 2000 | Definite | Estab | |
| Bryozoans | Watersipora arcuata | 1969 | Definite | Estab | |
| Bryozoans | Watersipora subatra* | 2014 | Definite | Estab | |
| Bryozoans | Watersipora subatra* | 2000 | Definite | Estab | |
| Bryozoans | Watersipora subtorquata | 1964 | Definite | Estab | |
| Bryozoans | Watersipora subtorquata | 2000 | Definite | Estab | |