Results 71 to 80 of about 4,176,998 (193)

Biological carbon pump estimate based on multidecadal hydrographic data

Nature, 2023
By using several decades of hydrographic data and an inverse biogeochemical model that implicitly accounts for all known export pathways, a top-down estimate of the strength of the biological carbon pump is calculated.
Weilei Wang, Weiwei Fu, F. L. Le Moigne, R. Letscher, Yi Liu, Jingyun Tang, F. Primeau   +6 more
semanticscholar   +1 more source

Eukaryotic Phytoplankton Contributing to a Seasonal Bloom and Carbon Export Revealed by Tracking Sequence Variants in the Western North Pacific

Frontiers in Microbiology, 2019
Greater diversity of eukaryotic phytoplankton than expected has been revealed recently through molecular techniques, but little is known about their temporal dynamics or fate in the open ocean. Here, we examined size-fractionated eukaryotic phytoplankton
Takuhei Shiozaki, Yuu Hirose, Koji Hamasaki, Ryo Kaneko, Kazuo Ishikawa, Naomi Harada   +5 more
doaj   +1 more source

Spatiotemporal distribution, source apportionment, and ecological risks of polycyclic aromatic hydrocarbons in surface water of the Southern Ocean

Frontiers in Marine Science
In Antarctica, low temperatures favor the trapping and deposition of polycyclic aromatic hydrocarbons (PAHs), whereas the biogeochemical cycling of PAHs on the Southern Ocean adjacent to Antarctica is highly sensitive to climate change.
Tao Yang, Tao Yang, Linlin Shi, Linlin Shi, Saizhang Tan, Saizhang Tan, Bangping Deng, Bangping Deng, Yu Ke, Yu Ke, Shengming Cheng, Yubin Li, Shuangcheng Zhang, Jingwei Wu, Lichen Zhao, Jun Shi, Jun Shi   +16 more
doaj   +1 more source

Climate change and terrigenous inputs decrease the efficiency of the future Arctic Ocean’s biological carbon pump

Nature Climate Change
The Arctic experiences climate changes that are among the fastest in the world and affect all Earth system components. Despite expected increase in terrigenous inputs to the Arctic Ocean, their impacts on biogeochemical cycles are currently largely ...
L. Oziel, Özgür Gürses, S. Torres‐Valdés, C. J. Hoppe, B. Rost, O. Karakuş, Christopher Danek, Boris P. Koch, Cara Nissen, Nikolay Koldunov, Qiang Wang, Christoph Völker, Morten H. Iversen, B. Juhls, J. Hauck   +14 more
semanticscholar   +1 more source

Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump

Nature Communications, 2022
Using paired reconstructions of seawater pCO2, temperature, and nutrient utilization, Dai et al. show underappreciated influences of the solubility pump on deglacial Subantarctic surface-water pCO2 variabilities compared to the biological pump.
Yuhao Dai, Jimin Yu, Haojia Ren, Xuan Ji
doaj   +1 more source

Effects of Phytoplankton Growth Phase on Settling Properties of Marine Aggregates

Journal of Marine Science and Engineering, 2019
Marine snow aggregates often dominate carbon export from the surface layer to the deep ocean. Therefore, understanding the formation and properties of aggregates is essential to the study of the biological pump.
Jennifer C. Prairie, Quinn W. Montgomery, Kyle W. Proctor, Kathryn S. Ghiorso   +3 more
doaj   +1 more source

CCE V: Primary production, mesozooplankton grazing, and the biological pump in the California Current Ecosystem: Variability and response to El Niño

Deep Sea Research Part I: Oceanographic Research Papers, 2018
Predicting marine carbon sequestration in a changing climate requires mechanistic understanding of the processes controlling sinking particle flux under different climatic conditions.
Rebecca M. Morrow, M. Ohman, R. Goericke, T. Kelly, B. Stephens, M. Stukel   +5 more
semanticscholar   +1 more source

Editorial: Zooplankton and nekton: gatekeepers of the biological pump, volume II

Frontiers in Marine Science, 2023
Rainer Kiko, Rainer Kiko, Daniele Bianchi, Helena Hauss, Morten H. Iversen, Morten H. Iversen, Amy Maas   +6 more
doaj   +1 more source

Export production in a continental shelf with multisource nutrient supply

Frontiers in Marine Science
Export production, which is defined as the export of organic matter fixed by photosynthesis, is crucial for sustaining oceanic carbon uptake. The export route in the open ocean is the sinking of biogenic particles through the bottom of the euphotic layer.
Jing Zhang, Jing Zhang, Lei Zhu, Xinyu Guo, Yucheng Wang, Jianlong Feng, Jianlong Feng, Liang Zhao, Liang Zhao   +8 more
doaj   +1 more source

Origin, Transformation, and Fate: The Three‐Dimensional Biological Pump in the California Current System

Journal of Geophysical Research - Oceans, 2018
While the Ekman drift as the cause for the high productivity of the California Current System was unraveled more than a century ago, it is less clear where the nutrients within the upwelling waters are coming from, and what the fate of the produced ...
Martin Frischknecht, M. Münnich, Nicolas Gruber   +2 more
semanticscholar   +1 more source