Seasonal and spring interannual variations in satellite-observed chlorophyll-a in the Yellow and East China Seas: New datasets with reduced interference from high concentration of resuspended sediment

Yamaguchi, Hiroichiro; Ishizaka, Joji; Siswanto, Eko; Son, Young Baek; Yoo, Sinjae; Kiyomoto, Yoko

doi:10.1016/j.csr.2013.03.009

Cited by 63 publications

(42 citation statements)

References 27 publications

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“…In comparison with the studies provided by Park et al (2014), the seasonal distribution pattern of chla concentration around the Changjiang River estuary is very similar with that of the CRD. It has also been reported by Yamaguchi et al (2013) that the chla concentration from the Changjiang River estuary to east of Jeju island is positively correlated with the CRD with a time lag of 0-2 months, and a spring maximum of chla concentration is observed in the south of the Changjiang bank. These reports are consistent with our results.…”

Section: Spatial and Seasonal Variations In Chlamentioning

confidence: 68%

“…Gong et al (2003) reported that the CRD has a profound impact on the phytoplankton growth rate in the BS and CES through supplying large amounts of nutrients into these seas. In the spring season, the high chla concentration tongueshaped structure near the Yangtze River estuary extends toward the southeast along the 50 m isobath (Yamaguchi et al, 2013). Fig.…”

Section: Spatial and Seasonal Variations In Chlamentioning

confidence: 95%

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The spatial and temporal changes of chlorophyll-a and suspended matter in the eastern coastal zones of China during 1997–2013

Liu

2015

Continental Shelf Research

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Section: Spatial and Seasonal Variations In Chlamentioning

confidence: 68%

Section: Spatial and Seasonal Variations In Chlamentioning

confidence: 95%

The spatial and temporal changes of chlorophyll-a and suspended matter in the eastern coastal zones of China during 1997–2013

Liu

2015

Continental Shelf Research

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“…The PP over the shelf in summer averages 939 mg C·m −2 ·day −1 , about 3 times the rates measured in other seasons, which are lower because of light limitation (Gong et al, ). This pattern differs from the seasonal variations of Chl a concentrations, regardless of whether the latter are determined via remote sensing or direct measurements (Liu et al, ; Yamaguchi et al, ).…”

Section: Introductionmentioning

confidence: 85%

Uncoupling of Seasonal Variations Between Phytoplankton Chlorophyll a and Production in the East China Sea

et al. 2019

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Phytoplankton chlorophyll a (Chla), primary production (PP), and nutrient uptake rates are fundamental and important parameters in marine biogeochemical studies. However, the relationships between them are associated with much uncertainty that reflects gaps in basic understanding of ecosystem dynamic. In this study, we simultaneously measured PP and nitrate assimilation (NA) along with estimated concentrations of nutrients, particulate organic carbon concentrations, phytoplankton Chla, pigments, and carbon biomass in the dynamic shelf ecosystems of the East China Sea (ECS) on four cruises during different seasons. There were large spatial gradients of these parameters, and seasonal patterns of phytoplankton Chla and PP varied between water masses. The results of this study and previous work indicated that seasonal variations of Chla and PP were similar in coastal waters but opposite in off‐shelf waters. During summer in off‐shelf waters, there were patches of high PP and NA associated with low Chla concentrations; this pattern was reversed in the winter. We suggest that there is a global tendency for PP and Chla patterns to be out of phase. This asynchrony is reflected mainly in the seasonal variations of C:Chla ratios driven by the combined influences of light, temperature, and nutrients. Stronger grazing pressure by microzooplankton in summer likely contributed to the high production but low biomass in the ECS. The significant correlation between PP and NA suggested that variations of PP in the ECS were driven largely by nitrate uptake, which may be inhibited by high ammonium concentrations in the Changjiang River plume.

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“…Since multi-year sediment trap studies have not been conducted in the YS, it is difficult to evaluate this possibility. Maximum satellite Chla concentration (> 2 mg/m 3 ) was observed in the middle of the YS in April, indicating the occurrence of spring blooms (Yamaguchi et al, 2013). Assuming GDGT export is linked to spring blooms, TEX 86 would be expected to correlate best with spring SST.…”

Section: Interpretation Of Tex 86 -Derived Temperatures In the Ysmentioning

confidence: 97%

TEX86 paleothermometer as an indication of bottom water temperature in the Yellow Sea

Xing

Sachs

Gao

et al. 2015

Organic Geochemistry

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Seasonal and spring interannual variations in satellite-observed chlorophyll-a in the Yellow and East China Seas: New datasets with reduced interference from high concentration of resuspended sediment

Cited by 63 publications

References 27 publications

The spatial and temporal changes of chlorophyll-a and suspended matter in the eastern coastal zones of China during 1997–2013

The spatial and temporal changes of chlorophyll-a and suspended matter in the eastern coastal zones of China during 1997–2013

Uncoupling of Seasonal Variations Between Phytoplankton Chlorophyll a and Production in the East China Sea

TEX86 paleothermometer as an indication of bottom water temperature in the Yellow Sea

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