Response of picophytoplankton to a warm eddy in the northern South China Sea

• Autorzy: Wang J. , Tan Y. , Huang L. , Ke Z. , Tan J. , Hu Z. , Wang Q.

Identyfikatory

DOI

10.1515/ohs-2016-0014

• Języki publikacji: EN

Abstrakty

EN

We investigated the distribution of several picophytoplankton groups (Prochlorococcus, Synechococcus, and picoeukaryotes) in relation to a warm eddy in the northern South China Sea in summer 2012. An anticyclonic eddy centered on 117°E longitude was identi ed during the sampling period using satellite data and hydrologic mapping. e layer of maximum Prochlorococcus and Synechococcus abundance within the eddy core dropped from 50 to 75 m, which was consistent with the subsurface chlorophyll a maximum. e water-column integrated abundance of Prochlorococcus, Synechococcus, and picoeukaryotes in the eddy core (9.67±0.23, 1.56±0.04, and 0.28±0.01 × 103 cells ml^-1, respectively) was signi cantly lower (P<0.05) than that of the reference stations (25.10±2.32, 2.71±0.63, and 0.92±0.15 × 103 cells ml-1, respectively), and the abundance of Prochlorococcus in the core was also signi cantly lower than that at eddy edges (15.75±1.78 × 103 cells ml-1). However, there were no di erences in the water-column integrated Chl a between the eddy core and edge. Our ndings show that the warm eddy led to the reduced picophytoplankton abundance, especially of Prochlorococcus and picoeukaryotes, causing the layer of maximum picophytoplankton abundance to differ from that of the subsurface Chl a maximum.

Słowa kluczowe

EN

northern South China Sea; picophytoplankton; warm eddy; carbon biomass; nutrient ratio

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological and Hydrobiological Studies
• Rocznik: 2016
• Tom: Vol. 45, No. 2
• Strony: 145--158
• Opis fizyczny: Bibliogr. 56 poz., rys., tab., wykr.

Twórcy

autor

Wang J.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

autor

Tan Y.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

autor

Huang L.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

autor

Ke Z.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

autor

Tan J.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

autor

Hu Z.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

autor

Wang Q.

• South China Sea Institute of Oceanology, 164 West Road Xingang, Guangzhou, Guangdong 510301, China

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.