Inorganic carbon assimilation by planktonic community in Santos Basin, Southwestern Atlantic Ocean

Kutner, Deborah S.; Bowman, Jeff S.; Saldanha-Corrêa, Flávia M. P.; Chuqui, Mateus G.; Tura, Pedro M.; Moreira, Daniel L.; Brandini, Frederico P.; Signori, Camila N.

doi:10.1590/2675-2824071.22085dsk

Ocean Coast. Res.

2023

DOI: 10.1590/2675-2824071.22085dsk

|View full text |Cite

Inorganic carbon assimilation by planktonic community in Santos Basin, Southwestern Atlantic Ocean

Deborah S. Kutner,

Jeff S. Bowman,

Flávia M. P. Saldanha-Corrêa

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Contribution of chemoautotrophy and heterotrophy to the microbial carbon cycle in the Southwestern Atlantic Ocean

et al. 2022

View full text Add to dashboard Cite

Dark carbon fixation (DCF) is a source of new and labile carbon in the deep ocean, while heterotrophic microbial production (HMP) promotes organic matter transfer through the microbial loop. Despite their ecological relevance, there is a scientific gap regarding the estimates of DCF and HMP in the Southwestern Atlantic Ocean. Thus, the aim of this study was to investigate the spatial distribution of DCF and HMP; their relevance to the ocean carbon cycle; their relationship with environmental parameters and amongst themselves on the upper slope of Santos Basin. The samples were collected at three different water depths and sediment layers aboard the R/V Alpha Crucis in November 2019. DCF and HMP rates were measured by 14 C-bicarbonate and 3 H-leucine incorporation, respectively, and incubated in the dark. In the water column, DCF rates varied from 1.51 x 10 1 to 3.24 x 10 2 µg C m -3 h -1 , which were one to two orders of magnitude lower than the HMP rates, from 1.26 x 10 2 to 1.48 x 10 4 µg C m -3 h -1 . In the sediments, the DCF ranged from 1.15 x 10 4 to 1.83 x 10 5 µg C m -3 h -1 , while HMP was one to four orders of magnitude lower, 3.22 x 10 1 to 1.56 x 10 3 µ gC m -3 h -1 . DCF rates were significantly higher in the sediments, due to a higher availability of energy sources than in the oligotrophic water above. The HMP had higher rates in the water column as it is deeply dependent on organic matter derived from photosynthesis. This is the first study to investigate DCF and HMP considering the water column and sediments of the Southwestern Atlantic Ocean, thus contributing to a better understanding of the microbial role in the marine carbon cycle and ecosystem functioning.

show abstract

Contribution of chemoautotrophy and heterotrophy to the microbial carbon cycle in the Southwestern Atlantic Ocean

et al. 2022

View full text Add to dashboard Cite

show abstract

Subsidies for ecosystem-based management in an offshore oil and gas exploration area, Santos Basin, Brazil

Fonseca,

Carreira,

Sousa

2023

Ocean Coast. Res.

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Inorganic carbon assimilation by planktonic community in Santos Basin, Southwestern Atlantic Ocean

Cited by 2 publications

References 59 publications

Contribution of chemoautotrophy and heterotrophy to the microbial carbon cycle in the Southwestern Atlantic Ocean

Contribution of chemoautotrophy and heterotrophy to the microbial carbon cycle in the Southwestern Atlantic Ocean

Subsidies for ecosystem-based management in an offshore oil and gas exploration area, Santos Basin, Brazil

Contact Info

Product

Resources

About