A5054764288- Marine and coastal ecosystems
- Marine and fisheries research
- Marine Biology and Ecology Research
- Isotope Analysis in Ecology
- Oceanographic and Atmospheric Processes
- Microplastics and Plastic Pollution
- Coral and Marine Ecosystems Studies
- Ocean Acidification Effects and Responses
- Coastal and Marine Management
- Fish Ecology and Management Studies
- Arctic and Antarctic ice dynamics
- Microbial Community Ecology and Physiology
- Marine Bivalve and Aquaculture Studies
- Climate variability and models
- Cephalopods and Marine Biology
- Recycling and Waste Management Techniques
- Methane Hydrates and Related Phenomena
- Marine and coastal plant biology
- Marine animal studies overview
- Arctic and Russian Policy Studies
- Marine Biology and Environmental Chemistry
- Microbial Metabolism and Applications
- Species Distribution and Climate Change
- Environmental DNA in Biodiversity Studies
- Ecosystem dynamics and resilience
North Pacific Marine Science Organization
2023-2025
Japan Agency for Marine-Earth Science and Technology
2013-2023
World Conservation Monitoring Centre
2018-2021
United States Global Change Research Program
2021
Naval Hospital Yokosuka Japan
2021
Intergovernmental Oceanographic Commission of UNESCO
2018
Shinshu University
2006
Institute for Global Environmental Strategies
2001-2005
Tokyo University of Marine Science and Technology
2000
The University of Tokyo
1999
This study reports plastic debris pollution in the deep-sea based on information from a recently developed database. The Global Oceanographic Data Center (GODAC) of Japan Agency for Marine-Earth Science and Technology (JAMSTEC) launched Deep-sea Debris Database public use March 2017. database archives photographs videos that have been collected since 1983 by submersibles remotely operated vehicles. From 5010 dives database, 3425 man-made items were counted. More than 33% was macro-plastic,...
Abstract Sustained observations of marine biodiversity and ecosystems focused on specific conservation management problems are needed around the world to effectively mitigate or manage changes resulting from anthropogenic pressures. These observations, while complex expensive, required by international scientific, governance policy communities provide baselines against which effects human pressures climate change may be measured reported, resources allocated implement solutions. To identify...
Measurements of the status and trends key indicators for ocean marine life are required to inform policy management in context growing human uses resources, coastal development, climate change. Two synergistic efforts identify specific priority variables monitoring: Essential Ocean Variables (EOVs) through Global Observing System (GOOS), Biodiversity (EBVs) from Group on Earth Observations Observation Network (GEO BON). Both systems support reporting against internationally agreed...
Abstract. Antarctic krill (Euphausia superba) and salps are major macroplankton contributors to Southern Ocean food webs also fished commercially. Managing this fishery sustainably, against a backdrop of rapid regional climate change, requires information on distribution time trends. Many data the abundance both taxa have been obtained from net sampling surveys since 1926, but much is stored in national archives, sometimes only notebooks. In order make these important accessible we collated...
Global ocean physical and chemical trends are reviewed updated using seven key climate change indicators: (i) Sea Surface Temperature, (ii) Ocean Heat Content, (iii) pH, (iv) Dissolved Oxygen concentration (v) Arctic Ice extent, thickness, volume (vi) Level (vii) the strength of Atlantic Meridional Overturning Circulation (AMOC). The globally averaged surface temperature shows a mean warming trend 0.062 ± 0.013°C per decade over last 120 years (1900–2019). During (2010–2019) rate has...
and NPGO) clarified their largescale regional-scale dynamics.This has brought improved understanding of the mechanisms large-scale Pacific climate variability regionalscale impacts on coastal ocean marine ecosystems.
Latitudinal gradients in diversity are among the most striking features ecology. For terrestrial species, climate (i.e. temperature and precipitation) is believed to exert a strong influence on geographical distributions of through its effects energy availability. Here, we provide first global description variation marine copepods, key trophic link between phytoplankton fish, relation environmental variables. We found polar–tropical difference copepod Northern Hemisphere where peaked at...
Plankton are the base of marine food webs, essential to sustaining fisheries and other life. Continuous Recorders (CPRs) have sampled plankton for decades in both hemispheres several regional seas. CPR research has been integral advancing understanding dynamics informing policy management decisions. We describe how can contribute global diversity monitoring, being cost-effective over large scales providing taxonomically-resolved data. At OceanObs09 an integrated network surveys was envisaged...
Macroecological relationships provide insights into rules that govern ecological systems. Bergmann's rule posits members of the same clade are larger at colder temperatures. Whether temperature drives this relationship is debated because several other potential drivers covary with temperature. We conducted a near‐global comparative analysis on marine copepods (97 830 samples, 388 taxa) to test rule, considering drivers. Supporting we found better predicted size than did latitude or oxygen,...
Abstract Decadal‐ to multi‐decadal variations have been reported in many regional ecosystems the North Pacific, resulting an increasing demand elucidate link between long‐term climatic forcing and marine ecosystems. We detected phenological quantitative changes copepod community response decadal variation western subarctic Pacific by analyzing extensive zooplankton collection taken since 1950s, Odate Collection. Copepod species were classified into five seasonal groups depending on timing of...
Regime shifts are characterized by sudden, substantial and temporally persistent changes in the state of an ecosystem. They involve major biological modifications often have important implications for exploited living resources. In this study, we examine whether regime observed 11 marine systems from two oceans three regional seas Northern Hemisphere (NH) synchronous, applying same methodology to all. We primarily infer pelagic abrupt zooplankton assemblages, with exception East Pacific...
Abstract Yatsu, A., Chiba, S., Yamanaka, Y., Ito, S-I., Shimizu, Kaeriyama, M., and Watanabe, Y. 2013. Climate forcing the Kuroshio/Oyashio ecosystem. – ICES Journal of Marine Science, 70: 922–933. The Kuroshio Oyashio, western boundary currents in North Pacific, greatly influence climate, ecosystems, fisheries Pacific its adjacent waters. ecosystem (KOE) shows interannual decadal variability including regime shifts. Under a collaboration Forcing Ecosystem Response (CFAME) Task Team Working...
Developing enduring capacity to monitor ocean life requires investing in people and their institutions build infrastructure, ownership, long-term support networks. International initiatives can enhance access scientific data, tools methodologies, develop local expertise use them, but without ongoing engagement may fail have lasting benefit. Linking development technology transfer sustained monitoring is a win-win proposition. Trained experts will benefit from joining global communities of...
Understanding microplastic (MP) behavior in oceans is crucial for reducing marine plastic pollution. However, the complex process underlying MP transportation to deep seafloor remains unknown despite sea being considered its major sink. We focused on distribution Sagami Bay (adjacent highly populated areas of Japan), plate triple junction connected through Trough, and abyssal plain immediately below Kuroshio Extension. observed highest number MPs stations, more than previously reported. The...
Phytoplankton phenology and community structure in the western North Pacific were investigated for 2001–2009, based on satellite ocean colour data Continuous Plankton Recorder survey. We estimated timing of spring bloom cumulative sum chlorophyll a data, found that Decadal Oscillation (PDO)‐related interannual SST anomaly significantly affected phytoplankton phenology. The occurred either later or earlier years positive negative PDO (indicating cold warm conditions, respectively)....
Abstract The global distribution of zooplankton community structure is known to follow latitudinal temperature gradients: larger species in cooler, higher regions. However, interspecific relationships between and size communities have not been fully examined terms temporal variation. To re‐examine the relationship on a scale effects climate control thereon, we investigated variation copepod eastern western subarctic North Pacific 2000–2011. This report presents first basin‐scale comparison...
Development of global ocean observing capacity for the biological EOVs is on cusp a step-change. Current to automate data collection and processing integrate resulting streams with complementary data, openly available as FAIR certain dramatically increase amount quality information knowledge scientists decision makers into future. There little doubt that will continue expand their understanding what lives in ocean, where it how changing. However, whether this expanding stream inform policy...
The abyss (3500–6500 m) covers the bulk of deep ocean floor yet little is known about extent plastic debris on abyssal seafloor. Using video imagery we undertook a quantitative assessment present seafloor (5700–5800 m depth) beneath Kuroshio Extension current system in Northwest Pacific. This body water one major transit pathways for massive amounts that are entering North Pacific Ocean from Asia. Shallower sites (1400–1500 were also investigated comparison. dominant type was single-use...