Seasonal fluctuations in deep-sea sediment community oxygen consumption: central and eastern North Pacific

Nature ◽  
1984 ◽  
Vol 307 (5952) ◽  
pp. 624-626 ◽  
Author(s):  
K. L. Smith ◽  
R. J. Baldwin
Keyword(s):  
Oxygen Consumption ◽  
North Pacific ◽  
Deep Sea ◽  
Seasonal Fluctuations ◽  
Deep Sea Sediment

scholarly journals Estimating the effect of burrowing shrimp on deep-sea sediment community oxygen consumption

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3309 ◽  
Author(s):  
Daniel Leduc ◽  
Conrad A. Pilditch
Keyword(s):  
Oxygen Consumption ◽  
Oxygen Uptake ◽  
Continental Slope ◽  
Deep Sea ◽  
Sediment Cores ◽  
Chemical Oxidation ◽  
Community Respiration ◽  
Deep Sea Sediment ◽  
Benthic Respiration ◽  
Infaunal Community

Sediment community oxygen consumption (SCOC) is a proxy for organic matter processing and thus provides a useful proxy of benthic ecosystem function. Oxygen uptake in deep-sea sediments is mainly driven by bacteria, and the direct contribution of benthic macro- and mega-infauna respiration is thought to be relatively modest. However, the main contribution of infaunal organisms to benthic respiration, particularly large burrowing organisms, is likely to be indirect and mainly driven by processes such as feeding and bioturbation that stimulate bacterial metabolism and promote the chemical oxidation of reduced solutes. Here, we estimate the direct and indirect contributions of burrowing shrimp (Eucalastacus cf. torbeni) to sediment community oxygen consumption based on incubations of sediment cores from 490 m depth on the continental slope of New Zealand. Results indicate that the presence of one shrimp in the sediment is responsible for an oxygen uptake rate of about 40 µmol d−1, only 1% of which is estimated to be due to shrimp respiration. We estimate that the presence of ten burrowing shrimp m−2 of seabed would lead to an oxygen uptake comparable to current estimates of macro-infaunal community respiration on Chatham Rise based on allometric equations, and would increase total sediment community oxygen uptake by 14% compared to sediment without shrimp. Our findings suggest that oxygen consumption mediated by burrowing shrimp may be substantial in continental slope ecosystems.

scholarly journals A new and prospective resource for scandium: Evidence from the geochemistry of deep-sea sediment in the western North Pacific Ocean

2018 ◽  
Vol 102 ◽  
pp. 260-267 ◽  
Author(s):  
Kazutaka Yasukawa ◽  
Junichiro Ohta ◽  
Kazuhide Mimura ◽  
Erika Tanaka ◽  
Yutaro Takaya ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
North Pacific ◽  
Deep Sea ◽  
Western North Pacific ◽  
North Pacific Ocean ◽  
Deep Sea Sediment ◽  
Western North Pacific Ocean

Alcanivorax profundimaris sp. nov., a Novel Marine Hydrocarbonoclastic Bacterium Isolated from Seawater and Deep-Sea Sediment

2021 ◽  
Vol 78 (3) ◽  
pp. 1053-1060
Author(s):  
Chunming Dong ◽  
Qiliang Lai ◽  
Xiupian Liu ◽  
Li Gu ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Deep Sea ◽  
Deep Sea Sediment

Dynamic response of the heterogeneous deep-sea sediment with nonlinear gradient modulus to mining machine loading

2021 ◽  
pp. 1-12
Author(s):  
Wei Zhu ◽  
Jinxin Pan ◽  
Wenbo Ma ◽  
Shan Deng ◽  
Wujun Zhou ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Deep Sea ◽  
Mining Machine ◽  
Deep Sea Sediment ◽  
Machine Loading

A pyrene-degrading consortium from deep-sea sediment of the West Pacific and its key memberCycloclasticussp. P1

2008 ◽  
Vol 10 (8) ◽  
pp. 1948-1963 ◽  
Author(s):  
Baojiang Wang ◽  
Qiliang Lai ◽  
Zhisong Cui ◽  
Tianfeng Tan ◽  
Zongze Shao
Keyword(s):  
Deep Sea ◽  
The West ◽  
West Pacific ◽  
Deep Sea Sediment

The Reproductive Biology of Ophiacantha Bidentata (Echinodermata: Ophiuroidea) From The Rockall Trough

1982 ◽  
Vol 62 (1) ◽  
pp. 45-55 ◽  
Author(s):  
P. A. Tyler ◽  
J. D. Gage
Keyword(s):  
Reproductive Biology ◽  
Deep Water ◽  
Larval Stage ◽  
North Pacific ◽  
Deep Sea ◽  
Direct Development ◽  
The Arctic ◽  
Shallow Waters ◽  
Arctic Seas ◽  
Rockall Trough

INTRODUCTIONOphiacantha bidentata (Retzius) is a widespread arctic-boreal ophiuroid with a circumpolar distribution in the shallow waters of the Arctic seas and penetrating into the deep sea of the.North Atlantic and North Pacific (Mortensen, 1927, 1933a; D'yakonov, 1954). Early observations of this species were confined to defining zoogeo-graphical and taxonomic criteria including the separation of deep water specimens as the variety fraterna (Farran, 1912; Grieg, 1921; Mortensen, 1933a). Mortensen (1910) and Thorson (1936, pp. 18–26) noted the large eggs (o.8 mm diameter) in specimens from Greenland and Thorson (1936) proposed that this species had ‘big eggs rich in yolk, shed directly into the sea. Much reduced larval stage or direct development’. This evidence is supported by observations of O. bidentata from the White and Barents Seas (Semenova, Mileikovsky & Nesis, 1964; Kaufman, 1974)..

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