Published 05.08.2019 - Updated 05.08.2019

Kuroshio Current: Physical, Biogeochemical, and Ecosystem Dynamics - New book of findings by the IMBeR endorsed project – SKED

The North Pacific western boundary Kuroshio current, transports large amounts of heat, chemicals, and organisms, but is known to be nutrient-poor. Despite the low-nutrient concentration of Kuroshio water, the Kuroshio is an important spawning and nursery ground for various fish species, and a productive fishing ground. To understand the mechanisms of how this high fisheries productivity results from the oligotrophic conditions, i.e., the Kuroshio Paradox, and to determine how to use the ecosystem services sustainably, the Study of Kuroshio Ecosystem Dynamics for Sustainable Fisheries (SKED) started in October 2011. This ten-year project was funded by the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT). This recently published book is based largely on the results from the SKED project. Physical, chemical, and biological aspects of the Kuroshio are described and compared to those of the Gulf Stream, the western boundary current of the North Atlantic Ocean, to understand the similarity and differences between them.


Volume highlights include:

  • New insights into the role of the Kuroshio as a nutrient stream
  • The first interdisciplinary examination of the Kuroshio Paradox
  • Reflections on the influence of the Kuroshio on Japanese culture
  • Research results on both the lower and higher trophic levels in the Kuroshio ecosystem
  • Comparisons of nutrient dynamics in the Kuroshio and Gulf Stream
  • Predictions of ecosystem responses to future climate variability


Kuroshio Current: Physical, Biogeochemical, and Ecosystem Dynamics, Geophysical Monograph 243, First Edition.
Edited by Takeyoshi Nagai, Hiroaki Saito, Koji Suzuki, and Motomitsu Takahashi.
©2019 American Geophysical Union. Published 2019 by John Wiley & Sons, Inc.

Preview the book that is available in print from Wiley.com or Amazon.com

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Published 26.07.2019 - Updated 26.07.2019

New IMBeR publication: Towards integrating evolution, metabolism, and climate change studies of marine ecosystems

Global environmental changes are challenging the structure and functioning of ecosystems. However, a mechanistic understanding of how global environmental changes will affect ecosystems is still lacking. The complex and interacting biological and physical processes spanning vast temporal and spatial scales that constitute an ecosystem make this a formidable problem. There is thus the need to combine the study of evolution, together with metabolism and climate change. To study these interactions, a framework based on theoretical ecology that considers fundamental and realized niches, appears to be a promising approach.

This paper arose from the fifth IMBeR IMBIZO meeting: Marine biosphere research for a sustainable ocean: Linking ecosystems, future states and resource management, hosted by the Ocean, Carbon & Biogeochemistry Group at the Woods Hole Oceanographic Institution in October 2017, with a format of three concurrent, interacting workshops. In particular, this work was generated from the working group from Workshop 2: Metabolic diversity and evolution in marine biogeochemical cycling and ocean ecosystem processes.

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Published 08.07.2019 - Updated 08.07.2019

Interdisciplinary Marine Early Career Network (IMECaN) launched at the IMBeR Future Oceans2 conference

IMBeR officially launched its latest programme dedicated to students and early career researchers. The Interdisciplinary Marine Early Career Network (IMECaN) provides a networking platform, training programmes, and leadership opportunities for early career marine researchers. The official launch happened at a workshop at the Future Oceans2 Open Science Conference in Brest, France on 16 June 2019. The workshop focused on career development paths for marine researchers, and using infographics in research outputs.

IMECaN has lots of plans for the future, and will be providing training and development in areas not traditionally provided through formal curricula.

IMECaN currently has members in 59 countries and we hope to encourage more people to join up – so help us spread the news. More info about IMECaN and  sign up to receive updates on activities and events organised by IMECaN.

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Published 06.05.2019 - Updated 06.05.2019

IMBeR at the 2019 SOLAS Open Science Conference in Sapporo, Japan

The Surface Ocean-Lower Atmosphere Study (SOLAS) held its 7th open science conference in Sapporo, Japan from 21-25 April 2019. Members of IMBeR Japan Committee, Jun Nishioka, Koji Suzuki and Masahiko Fujii from Hokkaido University, and Atsushi Tsuda from the University of Tokyo, attended the conference and presented an IMBeR poster highlighting the collaboration between IMBeR and SOLAS, including new research successes and trends.

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Published 18.03.2019 - Updated 18.03.2019

SOLAS-IMBeR Interior Ocean Carbon working group, led by Niki Gruber, has determined the amount of man-made CO2 emissions taken up by the ocean from the atmosphere between 1994 and 2007.

The state of ocean CO2 uptake

The ocean is an important sink for anthropogenic CO2. From the beginning of the industrial revolution to the mid-1990s roughly 30% of our emissions have been absorbed by the oceans. This process is an important moderator of climate change, but can we count on it to remain as strong in the future? Gruber et al. calculated the ocean uptake of anthropogenic CO2 for the interval from 1994 to 2007, which continued as expected. They also observed clear regional deviations from this pattern, suggesting that there is no guarantee that uptake will remain as robust going forward

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Published 11.03.2019 - Updated 11.03.2019

Marine heatwaves threaten global biodiversity and the provision of ecosystem services

Marine heatwaves (MHW) are periods of above average temperatures (above the expected 90th percentile) that persist for more than 5 days in a region. They provide an unwanted look at how the ocean might respond to temperatures that exceed the 2C target for limiting global warming. A study by an international team of researchers including IMBeR SSC member Alistair Hobday published a global review of the impact of MHW on species and habitats. damage marine heatwaves are causing to the marine environment wherever they occur. The research in Nature Climate Change demonstrates periods of extreme temperatures can cause rapid loss of marine habitat, local extinctions, reduced fisheries catches and altered ocean food webs. Regardless of where MHW had occurred, they had negative and often detrimental effects on all kinds of marine organisms, including plankton, seaweed, coral, fish, birds and mammals. Impacts on marine life were more severe at the warm part of the species range, as heatwaves elevate already relatively warm temperatures. Studies like this one contribute to addressing IMBeR Grand Challenge 1 – understanding and quantifying the state and variability of marine ecosystems. Learn more about MHWs at www.marineheatwaves.org

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Published 15.05.2019 - Updated 15.05.2019

We are seeking an Administrative Assistant for the IMBeR Regional Project Office in Shanghai, China

IMBeR and the East China Normal University (ECNU) jointly established a regional office, the IMBeR Regional Project Office (IMBeR RPO), to promote IMBeR in the Asia-Pacific region and support the implementation of the IMBeR Science Plan. IMBeR and ECNU are looking to appoint an enthusiastic, organised, Administrative Assistant to work at the IMBeR RPO located at ECNU, Shanghai, China.

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