Assessing the Debris-Related Impacts From the Tsunami
  • Acronym: ADRIFT
  • Term: April 2014 - March 2017
  • Project Science Team Co-Chairs:
    Hideaki Maki (National Institute for Environmental Studies, Japan)
    Thomas Therriault (Department of Fisheries and Oceans, Canada)
    Nancy Wallace (NOAA Marine Debris Program, USA)
  • Project Visiting Scientist:
    Cathryn Clarke Murray (PICES)
  • Project Coordinator:
    Alexander Bychkov (PICES)
  • Funding Agency:
    Ministry of the Environment of Japan (MoE)

The Great East Japan Earthquake, with magnitude 9.1, struck off the Tohoku coast on March 11, 2011, and created a massive tsunami that impacted more than 10,000 square kilometers of coastline, causing loss of human life, property destruction, and environmental damage. The tsunami washed millions of tons of material into the Pacific Ocean and, within a year, marine debris (termed Japanese Tsunami Marine Debris or JTMD) started arriving on the Pacific coast of North America and the Hawaiian Islands. The ecological and biogeographic significance of this event for the eastern North Pacific became evident when, amazingly, numerous living Japanese coastal species of marine flora and fauna were found on two large docks originating from the port of Misawa (Aomori, Japan), and on an ever increasing number of skiffs, as well as smaller and diversified items from Japan.

While large amounts of marine debris are afloat at sea, researchers rarely know where the debris is from, when it entered the ocean, or how long it took to arrive at its destination. The JTMD study provided the first opportunity in the history of marine science to track a multi-year large-scale (more than 7,000 km) transoceanic rafting of marine life initiating from an exact known source and with an exact known sea-entry time.

Project organization and funding

In 2014, PICES accepted a request from the Government of Japan to undertake a project referred to as ADRIFT ("Assessing the Debris-Related Impacts From the Tsunami") to be funded by the Ministry of the Environment of Japan (MoE). The project lifetime was 3 years, April 15, 2014 to March 31, 2017, and total funding for this period was $3,681,547 CAD.

The project was directed by a Project Science Team (PST) made up of researchers from Canada, Japan, the United States, and co-chaired by three PICES members: Dr. Hideaki Maki (National Institute for Environmental Studies, Japan), Dr. Thomas Therriault (Department of Fisheries and Oceans, Canada) and Ms. Nancy Wallace (NOAA Office of Response and Restoration, USA). The PST Co-Chairs were responsible for the scientific implementation of the project and annual reporting to MoE and PICES Science Board. They were strongly supported by PICES’ first Visiting Scientist, Dr. Cathryn Clarke Murray (now with Fisheries and Oceans Canada). Dr. Alexander Bychkov served as the Project Coordinator and was responsible for the management of the fund and for reporting annually on its disposition to MoE and PICES Governing Council.

Project goal and areas of research

The overall goal of the project was to assess and forecast the potential effects of JTMD, especially those related to non-indigenous species (NIS), on ecosystem structure and function, the coastlines, and communities along the Pacific coast of North America and the Hawaiian Islands, and to suggest research and management actions to mitigate any impacts.

The project brought together researchers from multiple scientific disciplines, and this international team focused on three major themes:

  1. modeling movement of marine debris in the North Pacific to forecast and hindcast JTMD trajectories and landings;
  2. surveillance and monitoring of JTMD landfall and accumulation; and
  3. characterizing and assessing the invasion risk of NIS transported on JTMD.
ADRIFT Scientific Report
ADRIFT Executive Summary (in English)
ADRIFT Executive Summary (in Japanese)
ADRIFT Scientific Report
Outreach Products
ADRIFT Factsheet (in English)
ADRIFT Factsheet (in Japanese)
ADRIFT Videoscibe
  • PICES Special Publication 6
    The Effects of Marine Debris Caused by the Great Japan Tsunami of 2011
    Murray, C., Therriault, T.W., Maki, H., and Wallace, N. [Eds.] 2019

  • A paper in Science titled “Tsunami-driven rafting: Transoceanic species dispersal and implications for marine biogeography” by J. Carlton et al. (Vol. 357, Is. 6358, pp. 1402–1406) was published on September 29, 2017 and chosen as the “journal cover article”. It was accompanied by the “perspective” essay and science (AAAS) video.

    As of October 8, 2017, this research paper has an Altmetric Attention Score of top 5% of all research outputs (8.5 million) ever tracked by Altmetric and was in #1 position for all Science papers over the last 6 weeks and one of the top 5 research stories of the month of September tracked globally by Altmetric. [Altmetric is a system that tracks the attention that research outputs such as scholarly articles and datasets receive online by pulling data from traditional mainstream and field specific media, social media, blogs, etc. The Altmetric Attention Score is a quantitative measure of the quality and quantity of attention that the output has received.]

  • A special issue of Aquatic Invasions on “Transoceanic dispersal of marine life from Japan to North America and the Hawaiian Islands as a result of the Japanese Earthquake and Tsunami of 2011” (Guest Editors: J. Carlton and A. Fowler) was published in February 2018 as Vol. 13, Is. 1, pp. 1–186. The special issue includes the Introduction, Co-Editors’ Preface and 12 scientific papers (all Open Access) by 30+ researchers, and provides an impressive amount of information on taxonomy of JTMD species and on invasion biology globally. The Introduction gives vignette summaries of examples of notable JTMD objects, and also details contributions (new species, new species records for Japan, and a rediscovered species – last documented in 1929) to the knowledge of Japanese and North Pacific marine biota as a result of JTMD research.

  • A special issue of Marine Pollution Bulletin on “The effect of marine debris caused by the Great Japan Tsunami of 2011” (edited by Cathryn Clarke Murray, Hideaki Maki, Thomas Therriault and Nancy. Wallace) was published in July 2018 as Vol. 132, pp. 1-106. The issue includes the Introduction and 10 original research papers (all Open Access) by 30+ researchers on modeling, surveillance, monitoring, ecology and risk of species from the ADRIFT project:

    C. Clarke Murray ADRIFT in the North Pacific: The movement, survaillance, and impact of Japanese tsunami debris (July 16, 2018)

    S. Kako et al. Sequential webcam monitoring and modeling of marine debris abundance (May 30, 2018)

    N. Maximenko et al. Numerical simulations of debris drift from the Great Japan Tsunami of 2011 and their verification with observational reports (May 2, 2018)

    T. Therriault et al. The invasion risk of species associated with Japanese Tsunami Marine Debris in Pacific North America and Hawaii (Feb. 1, 2018)

    J. Miller et al. Trait-based characterization of species transported on Japanese tsunami marine debris: Effect of prior invasion history on trait distribution (Jan. 12, 2018)

    C. Clarke Murray et al. The influx of marine debris from the Great Japan Tsunami of 2011 to North American shorelines (Jan. 10. 2018)

    K. Moy et al. Mapping Patterns of Marine Debris on Coastlines of the Main Hawaiian Islands Using High-Resolution Aerial Orthoimagery and Spatial Analysis (Dec. 20, 2017)

    J. Miller et al. Transoceanic dispersal of the mussel Mytilus galloprovincialis on Japanese tsunami marine debris: A model for evaluating rafting of a coastal species at sea (Oct. 31, 2017)

    T. Kataoka et al. Quantification of marine macro-debris abundance around Vancouver Island, Canada, based on archived aerial photographs processed by projective transformation (Sept. 12, 2017)

    S. Lindstrom An undescribed species of putative Japanese Pyropia first appeared on the central coast of British Columbia, Canada, in 2015 (July 20, 2017)

    T. Hanyuda et al. Genetic identification of macroalgal species on Japanese tsunami marine debris and genetic comparisons with their wild populations (July 3, 2017)

  • A paper in Phycologia titled “Invasion threat of benthic marine algae arriving on Japanese tsunami marine debris in Oregon and Washington, USA” by G.I. Hansen, T. Hanyuda and H. Kawai (Vol. 57, No. 6, pp. 641-658) was published in October 2018 and selected by the journal as the “cover article” (showing the Agate Beach Dock on the front cover) and to be their one press release for that issue.

  • A paper in Global Ecology and Biogeography titled "Exploring potential establishment of marine rafting species after transoceanic long-distance dispersal" by Simkanin et al. was published in May 2019 (Vol. 28, No. 5, pp. 588–600).
Legacy Products

JTMD species database

The JTMD species database on the Smithsonian Institution online portal NEMESIS (National Exotic Marine and Estuarine Species Information System) provides comprehensive information on the distribution, biology, ecology, life history traits and invasion history for selected species of marine invertebrates and algae from the northwestern Pacific Ocean, including those associated with JTMD that arrived to the coasts of North America and Hawaii. This information was compiled by applying a standardized search protocol of online resources and scientific literature written in both English and Japanese. The database is an important resource for improving our basic understanding of species transport and attributes related to invasion success, and can contribute to risk assessments.

Please use the following citation when referencing the ADRIFT database. Nelson J.C., Murray C.C., Otani M., Liggan L., Kawai H., Ruiz G.M., Hansen G. and Carlton J.T. 2016. PICES Japanese Tsunami Marine Debris database. Accession Date: 28-Nov -2016

JTMD specimen collections

Over 1,000 individual samples of marine invertebrates from more than 630 registered JTMD objects that landed in North America and Hawaii were placed for long-term stewardship at the Royal British Columbia Museum (RBCM, Victoria, Canada; contact Dr. Henry Choong (Curator, RBCM Invertebrate Zoology)). Approximately 170 pressings of the larger marine algae from 42 registered JTMD objects and 30 smaller plastic debris items thought to also be from the tsunami, as well as 88 pressing of marine algae collected in the Tohoku region of Japan and similar to those found on JTMD, were deposited at the Oregon State University Herbarium (OSC, Corvallis, USA; Contact Dr. Gyle Hansen). These two archival specimen collections allow researchers world-wide to access these unique resources now and in the years to come, especially with the undoubted advance of new analytical techniques. Additional funding for the JTMD marine invertebrate collection was provided by Fisheries and Oceans Canada through a grant from the Priorities and Partnership Fund to PICES.

Aerial survey mapping portals

Recognizing the existence of vast, uninhabited shorelines where JTMD could have made landfall, systematic aerial photographic surveys were conducted to search for, and quantify, JTMD arriving on the coastlines of British Columbia and Hawaii. These surveys were the first comprehensive debris evaluations in these two regions, providing important baselines of marine debris and complementing previous similar efforts in Alaska.

  • In 2014 and 2015, the ADRIFT project funded aerial photographic surveys of the exposed outer coast (more than 1,500 km) of British Columbia (BC). Additional funding for GIS analysis of the tagged photographs was provided by the Japan Tsunami Gift Fund, administered by the BC Ministry of Environment. All photographs, debris ranking segments and maps can be accessed through an online mapping portal designed and hosted by the BC Provincial Government (PICES Tsunami Debris Aerial Photo Survey).

  • Aerial surveys of the eight main Hawaiian Islands (approximately 1,600 km of coastlines), coordinated by Hawaii’s Department of Land and Natural Resources, were conducted between August and November 2015 to produce ortho-rectified photographs for analysis in GIS. This effort was funded by the ADRIFT project as well as by the Japan Tsunami Gift Fund to the Pacific Coast states, administered by NOAA’s Marine Debris Program. All imagery and maps developed based on these surveys can be accessed through ArcGIS Story Map, and can also be viewed online or downloaded through the State of Hawaii Office of Planning Service Directory.

JTMD algae identification guides

An “Identification guide of seaweeds on Japanese tsunami debris” available on the Kobe University website, and morphological documentation on “Benthic marine algae on Japanese tsunami marine debris” accessible through Oregon State University’s online library (Part 1: The tsunami event, the project overview, and the red algae; Part 2: The brown algae; Part 3: The green algae and cyanobacteria) have been prepared to assist the user in detecting JTMD algal species in the Eastern North Pacific.

Scientific Reports of Funded Research Activities

Modeling studies in support of research on impact of alien species transported by marine debris from the 2011 Great Tohoku Tsunami in Japan (2014–2017)
PIs: N. Maximenko (University of Hawaii, USA), M. Kamachi (JAMSTEC, Japan) and A. MacFadyen (NOAA, USA)
Final Report

Japanese Tsunami Marine Debris (JTMD) and alien species invasions: Continued characterization of JTMD biodiversity (2014–2017)
PI: J. Carlton (Williams College, USA)
Final Report

Japanese Tsunami Marine Debris (JTMD) and alien species invasions: PICES interception of non-native species on JTMD and genetic, morphological, and parasitological analyses of JTMD North American and Japanese vouchers (2014–2017)
PI: G. Ruiz (Smithsonian Environmental Research Center, USA)
Final Report

PICES Tohoku coastal field survey (fouling plate) – supplemental study for U.S. tsunami debris spp. list (2015–2017)
PIs: H. Kato, T. Yonezawa and K. Baba (JANUS, Japan)
Year 3 Report
Year 2 Report

Japanese Tsunami Marine Debris (JTMD) and alien species invasions: Molecular identification species on JTMD and DNA barcoding of Japanese vouchers (2014–2017)
PI: J. Geller (Moss Landing Marine Laboratories, USA)
Final Report
Appendix 1

Japanese Tsunami Marine Debris (JTMD) and alien species invasions: Biological sampling and characterization of JTMD (2014–2017)
PI: J. Chapman (Hatfield Marine Science Center, Oregon State University, USA)
Final Report

Marine algae arriving on Japanese Tsunami Marine Debris (JTMD) and their invasion threat to the coasts of Oregon and Washington, USA (2014–2017)
PI: G. Hansen (Oregon State University, USA)
Final Report

Marine algae arriving on JTMD (Japanese Tsunami Marine Debris) and their invasion threat to the Northwestern Pacific coasts (2014–2017)
PI: H. Kawai (Kobe University, Japan)
Final Report
Appendix 1

Development of life history database for Japanese Tsunami Marine Debris (JTMD) biota (2015–2016)
PI: J. Miller (Oregon State University, USA)
Final Report

Analysis of distributional, environmental, and life history attributes of Japanese Tsunami Marine Debris (JTMD) biota (2016–2017)
PI: J. Miller (Oregon State University, USA)
Final Report

Webcam monitoring of marine/tsunami debris (2014–2017)
PI: A. Isobe (Kyushu University, Japan)
Year 3 Report
Year 2 Report
Year 1 Report

Hawaiian Islands marine debris aerial imagery survey (2015–2016)
PI: B. Neilson (Hawaii Department of Land and Natural Resources, USA)
Final Report

Japanese marine debris aerial imagery analysis and GIS support (2016)
PIs: M. Hamnett and K. Davidson (Hawaii Coral Reef Initiative, Social Science Research Institute, USA)
Final Report

Synthesizing the state of debris in Hawaii from 2015 aerial imagery and spatial analysis data (2016–2017)
PIs: M. Hamnett and K. Davidson (Hawaii Coral Reef Initiative, Social Science Research Institute, USA) and B. Neilson (DLNR, Hawaii, USA)
Final Report

Surveillance and monitoring of tsunami debris
PIs: C. Murray (PICES) and N. Wallace (NOAA, USA)
Final Report


Winter 2017, Vol. 25, No. 1, pp. 32–35
Webcam monitoring and modeling of Japanese tsunami marine debris.

Winter 2017, Vol. 25, No. 1, pp. 36–39
Mapping patterns of marine debris in the main Hawaiian Islands using aerial imagery and spatial analysis.

Summer 2016, Vol. 24, No. 2, pp. 26–27
The Little Green Bucket’s 10,000 mile journey.

Winter 2016, Vol 24, No. 1, pp. 24–28
The mussel Mytilus galloprovincialis on Japanese tsunami marine debris: A potential model species to characterize a novel transport vector.

Summer 2015, Vol. 23, No. 2, pp. 32–36
Modeling the drift of marine debris generated by the 2011 tsunami in Japan.

Winter 2015, Vol. 23, No. 1, pp. 28–30

The impact of Japanese tsunami debris on North America.

Annual Progress Reports
Progress Report, Year 2 (Apr. 2015 - Mar. 2016)
Progress Report, Year 1 (Apr. 2014 - Mar. 2015)
Annual Financial Reports
Financial Report, Year 3 (Apr. 2016 - Mar. 2017)
Financial Report, Year 2 (Apr. 2015 - Mar. 2016)
Financial Report, Year 1 (Apr. 2014 - Mar. 2015)
Meetings and Events
  • Presentation by Hideaki Maki on "ADRIFT (Assessing Debris Related Impact From Tsunami) Project – Outline and legacy products" at the PICES-2018 TCODE Workshop on "Development of a systematic approach to data management in PICES" (October 25, 2018, Yokohama, Japan).
    Abstract, Presentation

    in the Pocket Gallery at the Royal British Columbia Museum
    September – October 2018, Victoria, Canada
    ADRIFT Photos

  • Special evening lecture by James Carlton on “The Age of Plastics meets the Age of Invasions?: How Tsunamigenic Megarafting, Coastal Development, and Climate Change may all relate to a new Ocean Vector” on the first night of the 10th International Conference on Biological Invasions: New Directions in Invasion Biology (NEOBIOTA-2018; September 4–7, 2018, Dublin, Ireland)

  • Topic session on "The risk of marine debris mega-pulse events: Lessons from the 2011 Great Japan Tsunami" at the Sixth International Marine Debris Conference (March 12-16, 2018, San Diego, CA, USA). The Proceedings document provides an overview and summary of the events occurring during the Conference.

    This session, co-chaired by Cathryn Murray (DFO Canada) and Alexander Bychkov (PICES), was focused on large-scale marine debris issues and highlighted many novel advances, applications, and lessons learned from Japanese Tsunami Marine Debris study in the North Pacific that can be used elsewhere. This is an important outcome as global climate change is already affecting the frequency and scale of storm activity, including hurricanes, typhoons, and monsoons, which increases the probability and magnitude of future mega-pulse debris events.

    JTMD research also provided the first opportunity in the history of marine science to track large-scale (7000+ km) transoceanic rafting event of marine life. It was clearly demonstrated that modern rafting is very different from historic rafting as it includes largely non-biodegradable anthropogenic (plastic) objects which differ fundamentally in their at-sea longevity from naturally floating woods and seaweed. Persistence of anthropogenic materials has revealed the previously unknown capacity of coastal species to survive for multiple years on a transoceanic journey and thus critically extended the potential for long-term and long-distance transport of non-native species. As a result, the trans-oceanic movement of species on marine debris is becoming an emerging issue in invasion research.

    The session included 7 talks and 1 poster.

    Nikolai Maximenko
    Pathways, impacts and fate of marine debris generated by the 2011 tsunami in Japan derived from a synthesis of numerical models and observational reports

    Cathryn Murray
    Finding a needle in a debris haystack: Surveillance of debris from the Great Japan Tsunami

    Kate Bimrose
    How the 2011 Japanese Earthquake and Tsunami Prompted a Marine Debris Monitoring Program in Central California

    Atsuhiko Isobe
    An estimate of the abundance of Japanese tsunami marine debris washed ashore on the west coasts of the North America, based on a combination of webcam monitoring and a particle tracking model experiment

    Jessica Miller
    Diving into debris: the biology and ecology of biota transported on Japanese tsunami marine debris

    Thomas Therriault
    The invasion risk of invertebrate species associated with Japanese Tsunami Marine Debris in North America and Hawaii

    James Carlton (invited)
    Megarafting: The role of marine debris in the coastal and transoceanic transport of marine life

    Kirsten Moy (poster)
    Quantifying the accumulation of marine debris near coral reefs using aerial imagery and GIS

  • PICES/ICES Theme Session on “Bioinvasion trajectories and impacts in contrasting marine environment” at the 2017 ICES ASC (September 18-21, 2017, Fort Lauderdale, FL, USA) – presentation of project findings on potential impacts from JTMD and associated NIS to coastal ecosystems in Pacific North America

  • Eighth Project Co-Chairmen Meeting (May 20-21, 2017, Sendai/Matsushima, Japan)

  • Public EventWhere have the tsunami-rafted objects gone?” (May 20, 2017, Sendai, Japan)
    Program /Poster /Abstracts /Presentations

  • Seminar for Tohoku University graduate students on “Marine debris from the Great Tsunami of 2011 – Overview” (May 19, 2017, Sendai, Japan)
    Program /Abstracts /Presentations

  • International Symposium on “Effects of marine debris caused by the Great Tsunami of 2011” (May 18, 2017, Tokyo, Japan)
    Program /Poster /Abstracts /Presentations

  • Fourth Risk Assessment Workshop (January 10–12, 2017, Burlington, Canada)

  • PICES-2016 Topic Session (photo 1, photo 2) on “The effect of marine debris caused by the Great Tsunami of 2011” (November 8–9, 2016, San Diego, USA)
    Summary /Presentations

  • Seventh Project Co-Chairmen Meeting (November 4, 2016, San Diego, USA)

  • Third Risk Assessment Workshop (August 10–12, 2016, Montreal, Canada)

  • Sixth Project Co-Chairmen Meeting (April 19–21, 2016, Vancouver, Canada)

  • Fifth Project Co-Chairmen Meeting, Third Project Science Team meeting and Seminar (Jim Carlton: The 2011 Japanese Tsunami Marine Debris Field: Origins and Biodiversity) for the Sessile Organisms Society of Japan (February 22–26, 2016, Tokyo, Japan)

  • Ninth International Conference on Marine Bioinvasions (January 19-21, 2016, Sydney, Australia) – project overview

  • Second Risk Assessment Workshop in conjunction with the Ninth International Conference on Marine Bioinvasions (January 17, 2016, Sydney, Australia)

  • First Risk Assessment Workshop (photo 1, photo 2) (November 16–18, 2015, Maryland, USA)

  • Fourth Project Co-Chairmen Meeting in conjunction with PICES-2015 (October 16, 2015, Qingdao, China)

  • Third Project Co-Chairmen Meeting and a seminar with a project overview for NOAA (May 11–12, 2015, Silver Spring, USA)

  • Second Project Science Team Meeting (March 16–18, 2015, Honolulu, USA)

  • Second Project Co-Chairmen Meeting (February 25-26, 2015, Sidney, BC, Canada)

  • Second International Ocean Research Conference (November 17-21, 2014, Barcelona, Spain) – project overview
    This poster as one of the best 10 posters (among more than 250) presented during the conference, sailed around the world on board of the IMOCA boat, One Planet, One Ocean – Pharmaton, participating in the 3rd Barcelona World Race.

  • First Project Co-Chairmen Meeting in conjunction with PICES-2014 (October 17, 2014, Yeosu, Korea)

  • First Project Science Team Meeting (July 30–August 1, 2014, Seattle, USA)

Useful Links

Headquarters for Ocean Policy, Government of Japan [Link]
Action of Japan to the drifting matters washed out by the March 11 Earthquake (so-called '3.11 Tsunami Debris')

NOAA Marine Debris Program [Link]

International Pacific Research Center: Marine and Tsunami Debris [Link]

Oregon State University [Link]

Mystic-Williams College [Link]

Smithsonian Environmental Research Center (SERC): Marine Invasions Research Lab [Link]

State of Alaska DEC Japan Tsunami Debris Survey [Link]

Webcam images [Link]

Media and News
Rafting the Pacific: For the first time, scientists see living organisms carried from one continent to another (by Henry Choong) - Feb 11, 2018, Times Colonist [Link]

Oregon State University press release - Sep 28, 2017 [Link]

Smithsonian Environmental Research Center press release - Sep 28, 2017 [Link]

Japan Tsunami: Hundreds of species hitchhiked to U.S. on plastic debris after megathrust earthquake (by Meghan Bartels) - Sep 28, 2017
Newsweek [Link]

Tsunami wreckage serves as liferafts for invasive species (by Rachael Lallensack) - Sep 29, 2017
Nature [Link]

Tsunami Sent Species on a Transoceanic Trip (by Christopher Intagliata) - Sep 28, 2017
Scientific American [Link]

Sea critters hitchhiked across the Pacific on tsunami debris (by Seth Borenstein) - Sep 28, 2017
US News & World Report (Associated Press) [Link]

Plastic tsunami debris sent 300 marine species on ‘unprecedented’ journey across the Pacific (by Andrew Freedman) - Sep 28, 2017
Mashable [Link]

Japanese Animals Are Still Washing Up in America After the 2011 Tsunami (by Ed Yong) - Sep 28, 2017
The Atlantic [Link]

Plastic junk brought invasive species to U.S. after Japan’s 2011 tsunami (by Ben Guarino) - Sep 28, 2017
Washington Post [Link]

Very impressive marine life enters North America on debris from Japanese tsunami - Sep 29, 2017
CBC News [Link]

Animals, Plants Rafted Across The Pacific After Japan's 2011 Earthquake (by Ailsa Chang) - Sep 29, 2017
NPR (National Public Radio) [Link]

Tsunami drives species 'army' across Pacific to US coast (by Matt McGrath) - Sep 29, 2017
BBC World News [Link]
download video with Matt McGrath

The Clam that Sank A Thousand Ships - Dec 5, 2016
Hakai Magazine [Link]

Photo Data Supports A Variety of Activities - July 19, 2016
DataBC - Blog [Link]

BC coast to see historic cleanup of marine debris as Japanese tsunami money runs out â€" July 20, 2016
Vancouver Sun [Link]

More marine debris hitting Niihau than any other isle - June 1, 2016
Honolulu Star-Advertiser [Link]

Aerial surveys document ocean debris around Hawaii - May 31, 2016
ABC News [Link]

Debris peppered with plastic - June 1, 2016
The Garden Island [Link]

Taking stock of marine debris; Survey finds 2,200 pieces on Big Island shores - June 1, 2016
Hawaii Tribune-Herald and West Hawaii [Link]

Aerial survey finds mostly plastic, limited tsunami marine debris in Hawaii - May 31, 2016
KHON2 Video [Link], Text [Link]

DLNR Conducts 1st Aerial Survey of Marine Debris - June 1, 2016
Hawaii Public Radio [Link]

Plastic Dominates Hawaii Marine Debris, Survey Shows - May 31, 2016
Big Island Video News [Link]

Statewide Survey of Marine Debris Shows Plastic is Most Prevalent: Aerial Survey Targeted At Japan Tsunami Marine Debris
Hawaii DLNR (Department of Land and Natural Resources) Video news release [Link]

Atsuhiko Isobe. Remote monitoring of marine debris. Hatfield Marine Science Center Seminar, Auditorium, 21 March 2016. Hosted by Oregon State University and Surfrider Foundation. [Link]

Japan tsunami marine debris: A look back five years later - 11 March, 2016
By: Nancy Wallace, director of the NOAA Marine Debris Program, Project Co-Chair

Cathryn Clarke Murray. Art, Aliens, and Radiation. Vancouver Aquarium Public Event
March 7, 2016, Vancouver Aquarium Marine Science Centre, Vancouver, Canada

Marine life taken global by tsunami trash - Wednesday 30 March 2016
Radio New Zealand. Nine to Noon.

How the Japanese tsunami sent marine invaders across the ocean - and why you should be worried. By Emma Johnston and Jim Carlton - January 17, 2016
The Conversation [Link]

Strangers on the Shore by Larry Pynn - October 21, 2015
Hakai Magazine [Link]

Mountains of debris from the Japanese tsunami have floated to the West Coast - 5 Aug 2015
Washington Post [Link]

Alaska Starts Cleaning Up Debris From Japan Spread by 2011 Tsunami - 12 July 2015
The New York Times [Link]

Japanese boat pieces, possible tsunami debris, to be removed – 28 April 2015
Honolulu Star-Advertiser [Link]

Boat likely washed away in 2011 tsunami washes up on Oahu beach; bins found on other islands – 26 April 2015
Greenfield Daily Reporter [Link]

More Japan Tsunami Debris Washes Up on Island Shores – 26 April 2015
Maui Now [Link]

Japan Tsunami Debris Travels to Hawai'i – 24 April 2015
Big Island Now [Link]

Suspected tsunami debris removed from beach – 24 April 2015
Honolulu Star-Advertiser [Link]

State confirms vessel found off East Oahu is tsunami debris – 24 April 2015
KHON2 [Link]

Fish found in suspected tsunami debris boat quarantined – 17 April 2015
Yahoo News [Link]

Fish found in suspected tsunami debris boat... 17 April 2015 [Link]

Boat remains, thought to be Japanese tsunami debris, deliver Asian fish to Oregon Coast – 15 April 2015 [Link]

Fish found in suspected tsunami debris boat... – 17 April 2015
Waterloo Record [Link]

Tsunami Boat Has Oregon Coast Officials on Lookout for Invasive Algae – 14 April 2015
Oregon Coast Beach Connection [Link]

Debris believed from Japan 2011 tsunami found along Oregon coast – 12 April 2015 [Link]

Tree on Wash. coast likely Japanese tsunami debris – 7 April 2015 [Link]

New Asian 'Tsunami Fish' Causes a Stir with Oregon Coast Scientists – 2 March 2015
Oregon Coast Beach Connection [Link]

Fish native to Japanese water found in Oregon crab pot – 26 Feb 2015 [Link]

Japanese tsunami debris bring foreign flora and fauna to US shores. 19 Feb 2015
Monterey County Weekly [Link]

Where the world ends up when the ocean spits it out – 28 January 2015. Juneau

Tsunami Debris Still Arriving – 24 January 2015. The Garden Island.

Japanese Researchers Visit Oregon for Marine Debris Project – 14 January 2015. Surfrider Foundation blog.

After Long, Cold Trip Across Pacific on Tsunami Debris, Sea Creatures Find Little Warmth – 12 January 2015. Wall Street Journal

Invasive mussels land on B.C. coast with Japan tsunami boat – 07 October 2013

Aerial survey reveals marine, tsunami debris widespread across Alaska coast – 05 February 2013 [Link]

Storm pounding West Coast will bring more tsunami debris – 12 December 2014

Invasive species hitchhiking to west coast on tsunami debris – 08 March 2013

Tsunami triggers invasion concerns – 06 March 2013

America threatened by sea species hitching a ride on tsunami debris – 14 October 2012 – The Telegraph [Link]

Desperate scramble to remove 'toxic' seaweed reaching U.S. shore on tsunami debris – 10 June 2012

Japan Tsunami Debris: Invasive Species Ride Debris To US Shore – 09 June 2012

As Japan debris washes up in the US, scientists fear break in natural order – 09 June 2012 [Link]
Project Science Team Members
Alexander Bychkov (ex-officio)
PICES Secretariat
9860 W. Saanich Road
Sidney, BC, Canada
Phone: (1-250) 363-6346
James T. Carlton
Williams College
Williams-Mystic, The Maritime Studies Program
of Williams College and Mystic Seaport
P. O. Box 6000
75 Greenmanville Avenue
Mystic, Connecticut 06355 USA
Phone: (1-860) 572-5359
Cathryn Clarke Murray (ex-officio)
PICES Secretariat
9860 W. Saanich Road
Sidney, BC, Canada
Phone: (1-250) 363-6911
Patrick Cummins
Institute of Ocean Sciences
Fisheries and Oceans Canada
9860 W. Saanich Road
Sidney, BC, Canada
Phone: (1-250) 363-6553
Atsuhiko Isobe
Kyushu University
6-1 Kasuga-Koen
Kasuga, Japan
Phone: (81-92) 583-7726,
Hiroshi Kawai
Research Center for Inland Seas
Kobe University
1-1 Rokkodai, Nadaku
Kobe , Hyogo
Japan 657-8501
Phone: (81-78) 803-5710
Fax: (81-78) 803-5710
Amy MacFayden
Emergency Response Division
US National Oceanic and Atmospheric Administration
7600 Sand Point Way
Seattle, WA 98115
Phone: (1-206) 526-6954
Hideaki Maki (Co-Chairman)
Marine Environment Section
National Institute for Environmental Studies (NIES)
16-2 Onogawa Tsukuba Ibaraki 305-8506 Japan
Phone: (81-29) 850-2394
Thomas Therriault (Co-Chairman)
Fisheries and Oceans Canada
Pacific Biological Station
3190 Hammond Bay Rd.
Nanaimo , British Columbia, Canada
Phone: (1-250) 756-7394
Fax: (1-250) 756-7138
Nancy Wallace (Co-Chairman)
Marine Debris Program
US National Oceanic and Atmospheric Administration
1305 East West Highway
Silver Spring, Maryland, USA, 20910
Phone: (1-301) 713-2989

Hideaki Maki ( is a Senior Researcher at the National Institute for Environmental Studies (NIES). He had studied microbial degradation of crude oil in marine environments and conducted some field experiments of crude oil bioremediation. Recently, he has been monitoring water and sediment parameters relevant to hypoxia in Tokyo Bay. After the Great East Japan Earthquake, he has been involved in monitoring hydrocarbons contamination of sediments in the Tohoku coastal sea. Hideaki is the Japanese Co-Chair of the project on “Effects of marine debris caused by the Great Tsunami of 2011”, funded by the Ministry of the Environment of Japan, and serves as a member of the PICES Marine Environmental Quality committee and Working Group on Emerging Topics in Marine Pollution.

Thomas Therriault ( is a Research Scientist with Fisheries and Oceans Canada working on a variety of invasive species issues. He is the Canadian Co-Chair of the project on “Effects of marine debris caused by the Great Tsunami of 2011”, funded by the Ministry of the Environment of Japan, and Chairman of PICES Science Board.

Nancy Wallace ( is the Director of the National Oceanic and Atmospheric Administration’s Marine Debris Program, which is the federal lead for researching, preventing, and reducing the impacts of marine debris in the United States. She is the US Co-Chair of the project on “Effects of marine debris caused by the Great Tsunami of 2011”, funded by the Ministry of the Environment of Japan, and serves a members of the PICES Working Group on Emerging Topics in Marine Pollution. Nancy has worked on ocean policy related issues for the past decade. Her work includes resource conservation with the National Park Service, developing sustainable catch limits for fisheries off the east coast of the United States and efforts to improve water quality in the Gulf of Mexico.

Alexander Bychkov (ex-officio, was the Deputy Executive Secretary of PICES from 1996–1999 and the Executive Secretary of the Organization from 1999–2014. He serves now as a Special Projects Coordinator with PICES, and the project on “Effects of marine debris caused by the Great Tsunami of 2011”, funded by the Ministry of the Environment of Japan, is one of his primary responsibilities.

Cathryn Clarke Murray (ex-officio, is a Visiting Scientist with PICES on the project “Effects of marine debris caused by the Great Tsunami of 2011”, funded by the Ministry of the Environment of Japan. She is also Adjunct Professor in the Institute for Resources, Environment and Sustainability at the University of British Columbia. Cathryn has worked with WWF (World Wildlife Fund) - Canada on the cumulative effect of human activities, with Fisheries and Oceans Canada on ecological risk assessment, and studied the spread of invasive species on marine recreational boats.

ADRIFT Researchers
John Chapman
Fisheries and Wildlife
Oregon State University
2030 SE Marine Science Drive
Newport, OR, 97365, USA
Kristine Davidson
Social Science Research Institute
University of Hawaii at Manoa
2424 Maile Way, #718
Honolulu, HI, 96822, USA
Toshio Furota
Tokyo Bay Ecosystem Research Center,
Toho University
Miyama 2-2-1
Funabashi, Chiba, 274-8510, Japan
Phone +43-496+2728
Jonathan B. Geller
Moss Landing Marine Laboratories
8272 Moss Landing Road,
Moss Landing CA 95039, USA
Gayle I. Hansen
Oregon State University / HMSC-EPA
2111 SE Marine Science Drive
Newport, Oregon, USA, 97365-5260
Phone +1 541-867-5012
Takeaki Hanyuda
Research Center for Inland Seas
Kobe University
1-1 Rokkodai, Nadaku
1-2 Kobe, Hyogo, 657-8501, Japan
Takami Hideki
Tohoku National Fisheries Research Institute,
Fisheries Research Agency
3-27-5 Shinhama
Shiogama, Miyagi 985-0001, Japan
Phone +81-22-365-9931
Hirofumi Hinata
Ehime University
3 Bunkyo-cho
Matsuyama, Japan
Phone +81-89-927-9835
Shin'ichiro Kako
Kagoshima University
1-21-40, Korimoto
Kagoshima, Japan
Phone +81-99-285-8473
Masafumi Kamachi
Japan Agency for Marine-Earth Science and Technology (JAMSTEC), FRA
3173-25 Showa-machi, Kanazawa-ku
Yokohama, Japan 236-0001
Tomoya Kataoka
Department of Civil Engineering, Faculty of Science and Technology,
Tokyo University of Science
2641 Yamasaki, Noda, Chiba, 278-8510, Japan
Sandra Lindstrom
Department of Botany
University of British Columbia
6270 University Boulevard
Vancouver, BC, V6T 1Z4, Canada
Nikolai A. Maximenko
International Pacific Research Center
School of Ocean & Earth Science & Technology
University of Hawaii at Manoa
Phone +1-808-956-2584
Jessica Miller
Oregon State University,
Hatfield Marine Science Center
Coastal Oregon Marine Experiment Station
2030 SE Marine Science Drive,
Newport, Oregon, USA, 97365
Phone +1 (541) 867-0381
Kirsten Moy
Social Science Research Institute
University of Hawaii at Manoa
2424 Maile Way, #718
Honolulu, HI, 96822, USA
Brian Neilson
Division of Aquatic Resources
Department of Land and Natural Resources
1151 Punchbowl Street #330
Honolulu, HI 96813, USA
Michio Otani
Osaka Museum of Natural History
1-23 Nagaikoen
Gregory M. Ruiz
Marine Invasion Research Laboratory
Smithsonian Environmental Research Center
647 Contees Wharf Road
P.O. Box 28
Edgewater, Maryland, USA 21037