Subsurface chlorophyll maximum in the tropical and subtropical western Pacific Ocean: Vertical profiles of phytoplankton biomass and its relationship with chlorophylla and particulate organic carbon

1990 ◽  
Vol 107 (3) ◽  
pp. 529-539 ◽  
Author(s):  
K. Furuya
Keyword(s):  
Pacific Ocean ◽  
Organic Carbon ◽  
Particulate Organic Carbon ◽  
Phytoplankton Biomass ◽  
Western Pacific ◽  
Western Pacific Ocean ◽  
Vertical Profiles ◽  
Chlorophyll Maximum ◽  
Subsurface Chlorophyll Maximum

scholarly journals Presence of <i>Prochlorococcus</i> in the aphotic waters of the western Pacific Ocean

2013 ◽  
Vol 10 (6) ◽  
pp. 9345-9371 ◽  
Author(s):  
N. Jiao ◽  
T. Luo ◽  
R. Zhang ◽  
W. Yan ◽  
Y. Lin ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Organic Carbon ◽  
Euphotic Zone ◽  
Western Pacific ◽  
Global Ocean ◽  
Western Pacific Ocean ◽  
Carbon Export ◽  
Carbon Pump ◽  
Primary Producer ◽  
The Western Pacific

Abstract. Prochlorococcus, the smallest but most abundant marine primary producer, plays an important role in carbon cycling of the global ocean. As a phototroph, Prochlorococcus is thought to be confined to the euphotic zone, with commonly observed maximum depths of ∼150–200 m. But here we show, using flow cytometry and cellular ribosomal content, for the first time the presence of abundant and active Prochlorococcus in the dark ocean ("deep Prochlorococcus" hereafter). Intensive studies at the Luzon strait in the western Pacific Ocean show that the deep Prochlorococcus populations are exported from the euphotic zone. Multiple physical processes including internal solitary waves could be responsible for the transportation. The unexpected abundance of the tiny phototrophs in the dark ocean reveals a novel mechanism for picoplankton carbon export other than the known mechanisms such as sinking of phytodetritus and aggregates or grazing-mediated transportation. Such direct transportation of picoplanktonic phototrophs from surface to deep waters is poorly understood, but could significantly contribute to both the biological pump (through particulate organic carbon) and the microbial carbon pump (through release of dissolved organic carbon from microbial processes) for carbon sequestration in the ocean.

Occurrence and cycle of dimethyl sulfide in the western Pacific Ocean

2021 ◽  
Author(s):  
Feng Xu ◽  
Shi‐Bo Yan ◽  
Hong‐Hai Zhang ◽  
Ying‐Cui Wu ◽  
Qian‐Yao Ma ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Dimethyl Sulfide ◽  
Western Pacific ◽  
Western Pacific Ocean ◽  
The Western Pacific
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