The acclimation process of phytoplankton biomass, carbon fixation and respiration to the combined effects of elevated temperature and pCO2 in the northern South China Sea

We conducted shipboard microcosm experiments at both off-shore (SEATS) and near-shore (D001) stations in the northern South China Sea (NSCS) under three treatments, low temperature and low pCO2 (LTLC), high temperature and low pCO2 (HTLC), and high temperature and high pCO2 (HTHC). Biomass of phytop...

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Bibliographic Details
Main Authors: Gao, Guang, Jin, Peng, Liu, Nana, Li, Futian, Tong, Shanying, Hutchins, David A, Gao, Kunshan
Format: Dataset
Language:English
Published: PANGAEA 2017
Subjects:
Alkalinity
total
standard deviation
Aragonite saturation state
Bicarbonate ion
Calcite saturation state
Calculated using CO2SYS
Calculated using seacarb after Nisumaa et al. (2010)
Carbon
inorganic
dissolved
Carbonate ion
Carbonate system computation flag
Carbon dioxide
Chlorophyll a
Coast and continental shelf
Containers and aquaria (20-1000 L or < 1 m**2)
D001
Entire community
Event label
EXP
Experiment
Experiment duration
Fugacity of carbon dioxide (water) at sea surface temperature (wet air)
Laboratory experiment
North Pacific
OA-ICC
Ocean Acidification International Coordination Centre
Open ocean
Partial pressure of carbon dioxide
Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)
Pelagos
pH
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.875086
https://doi.org/10.1594/PANGAEA.875086
Description
Summary:We conducted shipboard microcosm experiments at both off-shore (SEATS) and near-shore (D001) stations in the northern South China Sea (NSCS) under three treatments, low temperature and low pCO2 (LTLC), high temperature and low pCO2 (HTLC), and high temperature and high pCO2 (HTHC). Biomass of phytoplankton at both stations were enhanced by HT. HTHC did not affect phytoplankton biomass at station D001 but decreased it at station SEATS. HT alone increased net primary productivity by 234% at station SEATS and by 67% at station D001 but the stimulating effect disappeared when HC was combined. HT also increased respiration rate by 236% at station SEATS and by 87% at station D001 whereas HTHC reduced it by 61% at station SEATS and did not affect it at station D001. Overall, our findings indicate that the positive effect of ocean warming on phytoplankton assemblages in NSCS could be damped or offset by ocean acidification.

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