ArticleGlobal change biology2022
Climate-driven shifts in kelp forest composition reduce carbon sequestration potential.
Article in Global change biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.
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Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.
- A systematic review of marine macroalgal degradation: Toward a better understanding of macroalgal carbon sequestration potential.Journal of phycology · 2025Pooled it
- Temperature sensitivity of detrital photosynthesis.Annals of botany · 2024Pooled it
- Fate and carbon sequestration potential of sunken macroalgae in coastal oceans from long-term microbial degradation perspective.National science review · 2025Article
- Revisiting the species problem in Northeast Pacific ribbon kelp lineages (genus Alaria): Lessons learned using whole genome data.Journal of phycology · 2025Article
- Environmental Stressors Modulating Seasonal and Daily Carbon Dioxide Assimilation and Productivity inPlants (Basel, Switzerland) · 2025Article
- A blueprint for national assessments of the blue carbon capacity of kelp forests applied to Canada's coastline.npj ocean sustainability · 2025Article
- Projected loss of brown macroalgae and seagrasses with global environmental change.Nature communications · 2024Article
- Marine heatwave duration and intensity interact to reduce physiological tipping points of kelp species with contrasting thermal affinities.Annals of botany · 2024Article
- Standing Crop, Turnover, and Production Dynamics of Macrocystis pyrifera and Understory Species Hedophyllum nigripes and Neoagarum fimbriatum in High Latitude Giant Kelp Forests.Journal of phycology · 2022Article
- Climate-driven shifts in kelp forest composition reduce carbon sequestration potential.Global change biology · 2022Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The potential contribution of kelp forests to blue carbon sinks is currently of great interest but interspecific variance has received no attention. In the temperate Northeast Atlantic, kelp forest composition is changing due to climate-driven poleward range shifts of cold temperate Laminaria digitata and Laminaria hyperborea and warm temperate Laminaria ochroleuca. To understand how this might affect the carbon sequestration potential (CSP) of this ecosystem, we quantified interspecific differences in carbon export and decomposition alongside changes in detrital photosynthesis and biochemistry. We found that while warm temperate kelp exports up to 71% more carbon per plant, it decomposes up to 155% faster than its boreal congeners. Elemental stoichiometry and polyphenolic content cannot fully explain faster carbon turnover, which may be attributable to contrasting tissue toughness or unknown biochemical and structural defenses. Faster decomposition causes the detrital photosynthetic apparatus of L. ochroleuca to be overwhelmed 20 days after export and lose integrity after 36 days, while detritus of cold temperate species maintains carbon assimilation. Depending on the photoenvironment, detrital photosynthesis could further exacerbate interspecific differences in decomposition via a potential positive feedback loop. Through compositional change such as the predicted prevalence of L. ochroleuca, ocean warming may therefore reduce the CSP of such temperate marine forests.
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