Tsunami Floating Dock

Species List : as of April 13, 2013

Marine Organisms Found Living on a Floating Dock from

Misawa, Aomori Prefecture, Japan Dislodged by the 2011 Tōhoku Earthquake and Tsunami

and Washing Ashore on June 4, 2012 at Agate Beach, Lincoln County, Oregon

(Some identifications are still in progress)

* = Oceanic (pelagic) species acquired as dock floated across the North Pacific Ocean

+ = Species likely acquired as dock entered the Eastern Pacific Ocean

Group / Common Name / Estimated Number of
Living Japanese Non-Pelagic
Species / Total Number
of Species / Identification / Authority for identification
RHIZARIA:
FORAMINIFERA / foraminiferans / 9 / 10 / Cercozoa: Gromia "oviformis"
Foraminifera: arenaceous (unident.)
Foraminifera:
Cibicides lobatulus
6 additional species
* Globigerina sp. / Gromia: James T. Carlton (JTC)
Cibicides: Kenneth Finger
(UC Berkeley)
CILIOPHORA / ciliates / 1 / 1 / Folliculinidae
CYANOBACTERIA / blue green algae / 1 / 1
PORIFERA / sponges / 3 / 3 / Halichondria sp.
Haliclona sp.
siliceous species / David Elvin
NEMATODA / roundworms / 1 / 1
CNIDARIA
Hydrozoa / hydroids / 5 / 5 / Obelia sp.
Sertularella mutsuensis
Dynamena? sp.
Unidentified species A
Eutima sp. / Sertularella: Dale Calder and Henry Choong
(Royal Ontario Museum)
Eutima: JTC
Anthozoa / sea anemones / 1 / 1 / Metridium senile / Daphne Fauntin
(University of Kansas)
NEMERTEA / ribbon worms / 1 / 1 / Lineidae, unidentified Japanese species / Hiroshi Kajihara
(Hokkaido University, Japan), Svetlana Maslakova (University of Oregon)
ANNELIDA
Polychaeta
/ polychaete worms / 27 / 28 / Nereidae
Nereis pelagica
Phyllodocidae
Eulalia quadrioculata
Nereiphylla sp.
Unidentified species
Polynoidae
Halosydna brevisetosa
Harmothoe imbricata
Lepidonotus sp.
+ Unidentified juvenile
Syllidae
Syllis elongata-complex
Syllis hyalina-complex
Syllis spp. [at least 6 additional species]
Sphaerosyllis sp.
Trypanosyllis zebra?
Amblosyllis speciosa-complex
Terebellidae
Amphitrite sp.
Terebella sp.
Oenonidae
Arabella semimaculata?
Spionidae
Polydora sp.
Orbiniidae
Naineris sp.
Chrysopetalidae
Unidentified species
Acrocirridae
Acrocirrus sp.
Serpulidae
Hydroides ezoensis
Spirorbidae (unidentified) / Leslie Harris
(Natural History Museum of Los Angeles County)
MOLLUSCA
Gastropoda / snails / 3 / 5 / Mitrella moleculina (dove snail)
Nipponacmea habei (limpet)
Lottia sp. (limpet)
* Pteropoda (cf. Limacina spp.) / Mitrella: JTC, James H. McLean (Natural History Museum of Los Angeles County)
Limpets: Douglas Eernisse (California State University, Fullerton)
Bivalvia / mussels, oysters, clams / 6 / 8 / Mytilus galloprovincialis (mussel)
Crassostrea gigas (oyster)
Hiatella arctica (clam)
Arca navicularis (clam)
Anomia chinensis (clam: jingle shell)
Musculus cupreus (mussel)
+ Pectinidae (2 mm juvenile)
+ Mytilus sp. ? nepionic / Mytilus: JTC / Geller laboratory (genetic match)
Crassostrea: Chris Langdon (Oregon State University), Eugene V. Coan (Palo Alto CA) (EVC)
Other bivalves: EVC
Polyplacophora / chitons / 1 / 1 / Mopalia seta / Douglas Eernisse (California State University, Fullerton)
CRUSTACEA
Cirripedia / barnacles / 3 / 8 / Semibalanus cariosus
Megabalanus rosa
Balanus crenatus
+ Balanus sp., cf. B. glandula
Dead:
> Balanus sp., cf. B. trigonus
> Amphibalanus amphitrite/reticulatus
* Lepas anatifera
* Conchoderma auritum / JTC
Copepoda / copepods / 4 / 4 / Harpacticus sp.
Parastenhelia spinosa
Miraciidae, unidentified species
Thalestridae, unidentified species / Jeff Cordell
(University of Washington)
Ostracoda / ostracods / 1 / 1 / Unidentified species
Isopoda / pill bugs / 4 / 4 / Ianiropsis sp., cf. serricaudis
Ianiropsis sp.
Dynoides sp.
Munnidae / John W. Chapman (JWC)
Tanaidacea / tanaids / 1 / 1 / Zeuxo normani / JTC
Amphipoda / amphipods / 4 / 4 / Jassa marmorata
Ampithoe "valida"
Caprella mutica
Caprella cristibrachium / JWC
Decapoda
/ crabs / 2 / 2 / Hemigrapsus sanguineus
Oedignathus inermis / Hemigrapsus: JTC
Oedignathus: Gyo Itani
(Kochi University, Japan)
INSECTA
Diptera / marine flies / 1 / 1 / Chironomidae: identification in progress
BRYOZOA / bryozoans / 4 / 4 / Tricellaria sp.
Cryptosula pallasiana
Watersipora subtorquata
Smittinidae?: ?Porella sp. / JTC
Tricellaria also examined by Colin Johnson (Harvard University)
KAMPTOZOA / entoprocts / 1 / 1 / Barentsia sp. / JTC
ECHINODERMATA
Asteroidea / sea stars / 1 / 1 / Asterias amurensis (sea star) / Asterias: Christopher Mah (Smithsonian Institution)
Echinoidea / sea urchins / 1 / 1 / Temnotrema sculptum / Richard Mooi
(California Academy of Sciences)
Holothuroidea / sea cucumber / 1 / 1 / Unidentified species
ASCIDIACEA / sea squirts / 2 / 2 / Styela sp. [juvenile]
Didemnum sp. [juveniles] / Gretchen Lambert
(University of Washington)
ALGAE / seaweeds / 30 / 30 / Undaria pinnatifida (wakame)
Grateloupia turuturu
Additional species: IP / Gayle Hansen (Oregon State University and US EPA); Hiroshi Kawai and Takeaki Hanyuda (Kobe University, Japan)
TOTAL SPECIES / 119 / 130