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Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem
TLDR
The hypothesis that the presence of these large carnivores has affected fisheries resources, either through direct predation on larval stages, or through compe- tition for zooplankton prey is examined. Expand
Newly designed quantitative frame trawl for sampling larval and juvenile pelagic fish
TLDR
It was concluded that the newly constructed trawl was appropriate for the quantitative sampling of pelagic fish larvae and juveniles and had a high degree of stability despite the various sea conditions and the fluctuations in the ship speed. Expand
Effects of decadal climate change on zooplankton over the last 50 years in the western subarctic North Pacific
Decadal- to multi-decadal variations have been reported in many regional ecosystems in the North Pacific, resulting in an increasing demand to elucidate the link between long-term climatic forcingExpand
Environmental effects on recruitment and productivity of Japanese sardine Sardinops melanostictus and chub mackerel Scomber japonicus with recommendations for management
We compared a wide range of environmental data with measures of recruitment and stock production for Japanese sardine Sardinops melanostictus and chub mackerel Scomber japonicus to examine factorsExpand
Influence of the Pacific Decadal Oscillation on phytoplankton phenology and community structure in the western North Pacific
[1] Phytoplankton phenology and community structure in the western North Pacific were investigated for 2001–2009, based on satellite ocean colour data and the Continuous Plankton Recorder survey. WeExpand
In situ grazing rate of the copepod population in the western subarctic North Pacific during spring
TLDR
The copepod population was unimportant as primary consumers and that microzooplankton plays a much more important role in sustaining low standing stock of phytoplankton and a high nutrient concentration in the western subarctic Pacific Ocean. Expand
From climate regime shifts to lower-trophic level phenology: Synthesis of recent progress in retrospective studies of the western North Pacific
Abstract Pelagic ecosystems of the western North Pacific have experienced dramatic changes in recent decades. Prior retrospective analysis of several regions has shown that ecosystem or populationExpand
Downward carbon transport by diel vertical migration of the copepods Metridia pacifica and Metridia okhotensis in the Oyashio region of the western subarctic Pacific Ocean
Abstract Seasonal change in the downward carbon transport due to respiration and mortality through diel vertical migration (DVM) of the calanoid copepods Metridia pacifica and Metridia okhotensis wasExpand
Synchronous marine pelagic regime shifts in the Northern Hemisphere
Regime shifts are characterized by sudden, substantial and temporally persistent changes in the state of an ecosystem. They involve major biological modifications and often have importantExpand
Interdecadal variations in Japanese sardine and ocean/climate
Relations between the long-term variations in numbers of Japanese sardine and in ocean/climate were studied. We examined long-term records of the spring air temperature on the north-western coast ofExpand
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