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Article
Long-term variability in larval recruitment rates of a callianassid shrimp population on an intertidal sandflat in an estuary-to-coastal ocean interface area in relation to river discharge and shelf water movement, western Kyushu, Japan
Food availability is believed to affect macro-invertebrate larval survival at sea, which was poorly demonstrated. On the coast immediately outside an estuary (Ariake Sound, Kyushu, Japan), a population of the ...
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Article
Coastal ecosystem change in Asia: hypoxia, eutrophication, and nutrient conditions
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Article
Spatiotemporal structures of tidal currents and upwelling around the Hachiri-ga-se marine hill in the southwestern Japan Sea
Spatiotemporal structures of tidal and mean currents in August 2008 and May 2010 were estimated by shipboard ADCP data around the Hachiri-ga-se marine hill in the southwestern Japan Sea. The time variations of...
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Article
Presence of high nitrate to phosphate ratio subsurface water in the Tsushima Strait during summer
To identify water with an excess nitrate concentration to phosphate ratio and its potential source, the nutrient concentrations in the Tsushima Strait (TSS) were investigated over ten cruises in August and Sep...
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Article
Subsurface nutrient maximum and submesoscale structures in the southwestern Japan Sea
From summer to autumn, in the southwestern Japan Sea, the maximum subsurface nutrient (DIN: nitrate + nitrite) concentration and minimum dissolved oxygen (DO) concentration layers lie at depths of approximatel...
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Article
Spatial and Temporal Variation of a Cyclonic Eddy Detected Downstream of the Tsushima Islands in November 2007
Horizontal, vertical and temporal distribution of a cyclonic (counterclockwise) eddy, where biological productivity is high, downstream of the Tsushima Islands in the eastern channel of the Tsushima Straits in...
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Article
Seasonal volume transport variation in the Tsushima Warm Current through the Tsushima Straits from 10 years of ADCP observations
The seasonal variation in the structure and volume transport of the Tsushima Warm Current through the Tsushima Straits is studied using the acoustic Doppler current profiler (ADCP) data obtained by the ferryboat
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Article
Modeling of the branches of the Tsushima Warm Current in the Eastern Japan Sea
The branches of the Tsushima Warm Current (TWC) are realistically reproduced using a three-dimensional ocean general circulation model (OGCM). Simulated structures of the First Branch and the Second Branch of ...
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Article
Seasonal variation of horizontal material transport through the eastern channel of the Tsushima Straits
We conducted hydrographic observations ten times in the Tsushima Strait to reveal seasonal variations of horizontal material transports such as of heat, freshwater, chlorophyll a, and dissolved inorganic nitrogen...
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Article
Characteristics of water mass under the surface mixed layer in Tsushima Straits and the southwestern Japan Sea in autumn
Two different cold waters were found under the surface mixed layer in Tsushima Straits and the southwestern Japan Sea in autumn 2004. One is cold saline water with a low concentration of dissolved oxygen, and ...
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Article
Volume Transport through the Tsushima Straits Estimated from Sea Level Difference
The relations between the volume transport and the sea level difference across the Tsushima Straits have been investigated using current data provided by ADCP mounted on the ferry Camellia, plying between Hakata ...
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Article
Tidal Currents in the Tsushima Straits Estimated from ADCP Data by Ferryboat
Tidal currents in the Tsushima Straits have been analyzed using measurements obtained since February 1997 by an acoustic Doppler current profiler (ADCP) mounted on the ferryboat Camellia. Tidal current constituen...