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First assessment of...
First assessment of seagrass carbon accumulation rates in Sweden: A field study from a fjord system at the Skagerrak coast
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- Dahl, Martin, 1984- (author)
- Södertörns högskola,Miljövetenskap,Centro de Estudios Avanzados de Blanes, Consejo Superior de Investigaciones Científicas (CEAB-CSIC), Blanes, Spain
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- Asplund, Maria. E., 1970 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Kristineberg,Department of Biological and Environmental Sciences, Kristineberg,University of Gothenburg, Sweden,University of Cadiz, Spain
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- Bergman, S (author)
- Stockholm University, Sweden
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- Björk, M (author)
- Stockholm University, Sweden
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- Braun, S (author)
- Stockholm University, Sweden
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- Löfgren, E (author)
- Stockholm University, Sweden
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Martí, E (author)
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- Masque, P (author)
- Edith Cowan University, Australia; IAEA Marine Environment Laboratories, Principality of Monaco, Monaco
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- Svensson, J. Robin, 1979 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory,University of Gothenburg, Sweden
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- Gullström, Martin, 1968 (author)
- Södertörns högskola,Miljövetenskap
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(creator_code:org_t)
- Public Library of Science (PLoS), 2023
- 2023
- English.
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In: PLoS Climate. - : Public Library of Science (PLoS). - 2767-3200. ; 2:1
- Related links:
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https://doi.org/10.1...
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https://gup.ub.gu.se...
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Abstract
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- Seagrass meadows are globally important blue carbon sinks. In northern cold-temperate regions, eelgrass (Zostera marina) is the dominant seagrass species, and although their sedimentary carbon stocks have been quantified across regions, information regarding the CO2 withdrawal capacity as carbon sinks remains scarce. Here we assessed the carbon (Corg) accumulation rates (CARs) and stocks as well as the organic matter sources in five seagrass meadows in the Gullmar Fjord area on the Swedish Skagerrak coast. We found that the mean (±SD) CAR was 14 ± 3 g Corg m-2 yr-1 over the last ~120–140 years (corresponding to a yearly uptake of 52.4 ± 12.6 g CO2 m-2). The carbon sink capacity is in line with other Z. marina areas but relatively low compared to other seagrass species and regions globally. About half of the sedimentary carbon accumulation (7.1 ± 3.3 g Corg m-2 yr-1) originated from macroalgae biomass, which highlights the importance of non-seagrass derived material for the carbon sink function of seagrass meadows in the area. The Corg stocks were similar among sites when comparing at a standardized depth of 50 cm (4.6–5.9 kg Corg m-2), but showed large variation when assessed for the total extent of the cores (ranging from 0.7 to 20.6 kg Corg m-2 for sediment depths of 11 to at least 149 cm). The low sediment accretion rates (1.18–1.86 mm yr-1) and the relatively thick sediment deposits (with a maximum of >150 cm of sediment depth) suggests that the carbon stocks have likely been accumulated for an extended period of time, and that the documented loss of seagrass meadows in the Swedish Skagerrak region and associated erosion of the sediment could potentially have offset centuries of carbon sequestration.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Dahl, Martin, 19 ...
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Asplund, Maria. ...
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Bergman, S
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Björk, M
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Braun, S
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Löfgren, E
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show more...
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Martí, E
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Masque, P
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Svensson, J. Rob ...
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Gullström, Marti ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
- Articles in the publication
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PLoS Climate
- By the university
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University of Gothenburg
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Södertörn University