Influence of the Pacific Decadal Oscillation on phytoplankton phenology and community structure in the western North Pacific

S Chiba, S Batten, K Sasaoka, Y Sasai… - Geophysical …, 2012 - Wiley Online Library
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 …

Mesoscale eddy effects on temporal variability of surface chlorophyll a in the Kuroshio Extension

S Kouketsu, H Kaneko, T Okunishi, K Sasaoka… - Journal of …, 2016 - Springer
We investigated the relationship between chlorophyll a (Chl-a) concentrations estimated
from satellite observations and the activity of eddies in the Kuroshio Extension region. High (low…

Seasonal variability of primary production and phytoplankton biomass in the western P acific subarctic gyre: Control by light availability within the mixed layer

K Matsumoto, MC Honda, K Sasaoka… - Journal of …, 2014 - Wiley Online Library
A distinct seasonal variation of primary production was revealed from shipboard observations
conducted from 2005 to 2013 at time series station K2 in the western Pacific subarctic gyre …

Temperature and zooplankton size structure: Climate control and basin‐scale comparison in the North Pacific

…, SD Batten, T Yoshiki, Y Sasaki, K Sasaoka… - Ecology and …, 2015 - Wiley Online Library
The global distribution of zooplankton community structure is known to follow latitudinal
temperature gradients: larger species in cooler, higher latitudinal regions. However, interspecific …

Comparison of carbon cycle between the western Pacific subarctic and subtropical time-series stations: highlights of the K2S1 project

…, K Matsumoto, T Fujiki, E Siswanto, K Sasaoka… - Journal of …, 2017 - Springer
A comparative study of ecosystems and biogeochemistry at time-series stations in the subarctic
gyre (K2) and subtropical region (S1) of the western North Pacific Ocean (K2S1 project) …

Climatic forcing and phytoplankton phenology over the subarctic North Pacific from 1998 to 2006, as observed from ocean color data

K Sasaoka, S Chiba, T Saino - Geophysical Research Letters, 2011 - Wiley Online Library
We investigated phenological changes in phytoplankton in the subarctic North Pacific and
the relationship to climatic forcing variability from 1998 to 2006, using ocean color satellite …

Seasonal cycle of phytoplankton community structure and photophysiological state in the western subarctic gyre of the North Pacific

…, K Matsumoto, Y Mino, K Sasaoka… - Limnology and …, 2014 - Wiley Online Library
We investigated the seasonal variability of the phytoplankton community in the western subarctic
gyre (WSG) of the northwestern North Pacific with respect to structure (abundance, size, …

Flexible phytoplankton functional type (FlexPFT) model: size-scaling of traits and optimal growth

…, Y Sasai, C Yoshikawa, K Sasaoka… - Journal of Plankton …, 2016 - academic.oup.com
Recent studies have analysed valuable compilations of data for the size-scaling of phytoplankton
traits, but these cannot be employed directly in most large-scale modelling studies, …

Temporal and spatial variability of chlorophyll-a in the western subarctic Pacific determined from satellite and ship observations from 1997 to 1999

K Sasaoka, S Saitoh, I Asanuma, K Imai… - Deep Sea Research …, 2002 - Elsevier
The objectives of this study are to describe and understand the processes controlling the
temporal and spatial variability of chlorophyll-a (chl-a) in the subarctic northwestern Pacific …

Global distribution and variability of subsurface chlorophyll a concentration

S Yasunaka, T Ono, K Sasaoka… - Ocean Science …, 2021 - os.copernicus.org
Chlorophyll a (Chl-a) often retains its maximum concentration not at the surface but in the
subsurface layer. The depth of the Chl-a maximum primarily depends on the balance between …