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Important contribution of macroalgae to oceanic carbon sequestration

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Important contribution of macroalgae to oceanic carbon sequestration. / Ortega, Alejandra; Geraldi, Nathan R.; Alam, Intikhab; Kamau, Allan A.; Acinas, Silvia G.; Logares, Ramiro; Gasol, Josep M.; Massana, Ramon; Krause-Jensen, Dorte; Duarte, Carlos M.

I: Nature Geoscience, Bind 12, Nr. 9, 2019, s. 748-754.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Ortega, A, Geraldi, NR, Alam, I, Kamau, AA, Acinas, SG, Logares, R, Gasol, JM, Massana, R, Krause-Jensen, D & Duarte, CM 2019, 'Important contribution of macroalgae to oceanic carbon sequestration', Nature Geoscience, bind 12, nr. 9, s. 748-754. https://doi.org/10.1038/s41561-019-0421-8

APA

Ortega, A., Geraldi, N. R., Alam, I., Kamau, A. A., Acinas, S. G., Logares, R., Gasol, J. M., Massana, R., Krause-Jensen, D., & Duarte, C. M. (2019). Important contribution of macroalgae to oceanic carbon sequestration. Nature Geoscience, 12(9), 748-754. https://doi.org/10.1038/s41561-019-0421-8

CBE

Ortega A, Geraldi NR, Alam I, Kamau AA, Acinas SG, Logares R, Gasol JM, Massana R, Krause-Jensen D, Duarte CM. 2019. Important contribution of macroalgae to oceanic carbon sequestration. Nature Geoscience. 12(9):748-754. https://doi.org/10.1038/s41561-019-0421-8

MLA

Vancouver

Ortega A, Geraldi NR, Alam I, Kamau AA, Acinas SG, Logares R o.a. Important contribution of macroalgae to oceanic carbon sequestration. Nature Geoscience. 2019;12(9):748-754. https://doi.org/10.1038/s41561-019-0421-8

Author

Ortega, Alejandra ; Geraldi, Nathan R. ; Alam, Intikhab ; Kamau, Allan A. ; Acinas, Silvia G. ; Logares, Ramiro ; Gasol, Josep M. ; Massana, Ramon ; Krause-Jensen, Dorte ; Duarte, Carlos M. / Important contribution of macroalgae to oceanic carbon sequestration. I: Nature Geoscience. 2019 ; Bind 12, Nr. 9. s. 748-754.

Bibtex

@article{cf0ac8cf7abc45429e8bfddb1372a452,
title = "Important contribution of macroalgae to oceanic carbon sequestration",
abstract = "The role of macroalgae in Blue Carbon assessments has been controversial, partially due to uncertainties about the fate of exported macroalgae. Available evidence suggests that macroalgae are exported to reach the open ocean and the deep sea. Nevertheless, this evidence lacks systematic assessment. Here, we provide robust evidence of macroalgal export beyond coastal habitats. We used metagenomes and metabarcodes from the global expeditions Tara Oceans and Malaspina 2010 Circumnavigation. We discovered macroalgae worldwide at up to 5,000 km from coastal areas. We found 24 orders, most of which belong to the phylum Rhodophyta. The diversity of macroalgae was similar across oceanic regions, although the assemblage composition differed. The South Atlantic Ocean presented the highest macroalgal diversity, whereas the Red Sea was the least diverse region. The abundance of macroalgae sequences attenuated exponentially with depth at a rate of 37.3% km−1, and only 24% of macroalgae available at the surface were expected to reach the seafloor at a depth of 4,000 m. Our findings indicate that macroalgae are exported across the open and the deep ocean, suggesting that macroalgae may be an important source of allochthonous carbon, and their contribution should be considered in Blue Carbon assessments.",
author = "Alejandra Ortega and Geraldi, {Nathan R.} and Intikhab Alam and Kamau, {Allan A.} and Acinas, {Silvia G.} and Ramiro Logares and Gasol, {Josep M.} and Ramon Massana and Dorte Krause-Jensen and Duarte, {Carlos M.}",
year = "2019",
doi = "10.1038/s41561-019-0421-8",
language = "English",
volume = "12",
pages = "748--754",
journal = "Nature Geoscience",
issn = "1752-0894",
publisher = "Nature Publishing Group",
number = "9",

}

RIS

TY - JOUR

T1 - Important contribution of macroalgae to oceanic carbon sequestration

AU - Ortega, Alejandra

AU - Geraldi, Nathan R.

AU - Alam, Intikhab

AU - Kamau, Allan A.

AU - Acinas, Silvia G.

AU - Logares, Ramiro

AU - Gasol, Josep M.

AU - Massana, Ramon

AU - Krause-Jensen, Dorte

AU - Duarte, Carlos M.

PY - 2019

Y1 - 2019

N2 - The role of macroalgae in Blue Carbon assessments has been controversial, partially due to uncertainties about the fate of exported macroalgae. Available evidence suggests that macroalgae are exported to reach the open ocean and the deep sea. Nevertheless, this evidence lacks systematic assessment. Here, we provide robust evidence of macroalgal export beyond coastal habitats. We used metagenomes and metabarcodes from the global expeditions Tara Oceans and Malaspina 2010 Circumnavigation. We discovered macroalgae worldwide at up to 5,000 km from coastal areas. We found 24 orders, most of which belong to the phylum Rhodophyta. The diversity of macroalgae was similar across oceanic regions, although the assemblage composition differed. The South Atlantic Ocean presented the highest macroalgal diversity, whereas the Red Sea was the least diverse region. The abundance of macroalgae sequences attenuated exponentially with depth at a rate of 37.3% km−1, and only 24% of macroalgae available at the surface were expected to reach the seafloor at a depth of 4,000 m. Our findings indicate that macroalgae are exported across the open and the deep ocean, suggesting that macroalgae may be an important source of allochthonous carbon, and their contribution should be considered in Blue Carbon assessments.

AB - The role of macroalgae in Blue Carbon assessments has been controversial, partially due to uncertainties about the fate of exported macroalgae. Available evidence suggests that macroalgae are exported to reach the open ocean and the deep sea. Nevertheless, this evidence lacks systematic assessment. Here, we provide robust evidence of macroalgal export beyond coastal habitats. We used metagenomes and metabarcodes from the global expeditions Tara Oceans and Malaspina 2010 Circumnavigation. We discovered macroalgae worldwide at up to 5,000 km from coastal areas. We found 24 orders, most of which belong to the phylum Rhodophyta. The diversity of macroalgae was similar across oceanic regions, although the assemblage composition differed. The South Atlantic Ocean presented the highest macroalgal diversity, whereas the Red Sea was the least diverse region. The abundance of macroalgae sequences attenuated exponentially with depth at a rate of 37.3% km−1, and only 24% of macroalgae available at the surface were expected to reach the seafloor at a depth of 4,000 m. Our findings indicate that macroalgae are exported across the open and the deep ocean, suggesting that macroalgae may be an important source of allochthonous carbon, and their contribution should be considered in Blue Carbon assessments.

UR - http://www.scopus.com/inward/record.url?scp=85070292305&partnerID=8YFLogxK

U2 - 10.1038/s41561-019-0421-8

DO - 10.1038/s41561-019-0421-8

M3 - Journal article

AN - SCOPUS:85070292305

VL - 12

SP - 748

EP - 754

JO - Nature Geoscience

JF - Nature Geoscience

SN - 1752-0894

IS - 9

ER -