Seaweed - Wikipedia
Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. The term includes some types of Rhodophyta (red), Phaeophyta (brown) and Chlorophyta (green) macroalgae.
Carbon export from seaweed forests to deep ocean sinks
2024年5月22日 · Here we provide national and global estimates for seaweed-derived particulate carbon export below 200 m depth, which totalled 3–4% of the ocean carbon sink capacity. We characterized export using...
Potential role of seaweeds in climate change mitigation
2023年8月10日 · Seaweed has been suggested to contribute to climate change mitigation through four potential pathways (Krause-Jensen et al., 2018; Duarte et al., 2021; Troell et al., 2022): 1) protecting and restoring wild seaweed forests with potential climate change mitigation co-benefits; 2) expanding sustainable nearshore seaweed aquaculture with potential ...
Sinking seaweed in the deep ocean for carbon neutrality is ahead …
2022年8月12日 · Sinking vast amounts of seaweed in the deep ocean is currently being proposed as a promising ocean carbon dioxide removal strategy as well as a natural-based solution to mitigate climate change. Still, marketable carbon offsets through large-scale seaweed sinking in the deep ocean lack documentation and could involve unintended environmental ...
Seaweed | Definition, Types, & Facts | Britannica
2024年11月15日 · Seaweed, any of the red, green, or brown marine algae that grows along seashores. Seaweeds are generally anchored to the sea bottom or other solid structures by rootlike ‘holdfasts,’ which perform the sole function of attachment and do not extract nutrients as do the roots of higher plants.
Buried kelp: seaweed carried to the deep sea stores ... - The …
2024年5月27日 · Seaweed DNA has been detected in deep sea water and sediments in all of the world’s oceans, as deep as 4 kilometres down and up to 5,000 km from the closest seaweed forest. But how can...
Carbon removal and climate change mitigation by seaweed …
2024年3月25日 · In our analysis, carbon sequestered via transport and storage to the deep sea (C DEEP) was considered negligible as most of the world's farming occurs within sheltered embayments, which typically have reduced exchange with the open ocean (Liu et al., 2019), and cultivation rafts with seaweed reduce the water exchange rate (Zeng et al., 2015 ...
Seaweeds for carbon dioxide removal (CDR)–Getting the science …
2024年3月1日 · The fate of seaweed biomass accumulating on the deep-ocean floor is uncertain. It risks impacting negatively deep sea ecosystems and seaweed biomass not making it to the ocean floor will undergo elemental recycling and transformation to CO 2.
Deep-ocean seaweed dumping for carbon sequestration: …
2024年3月15日 · Deep-ocean seaweed dumping is not an ecological, economical, or ethical answer to climate-change mitigation via carbon “sequestration.” Without sound science and sufficient knowledge on impacts to these fragile ecosystems, it distracts from more rational and effective blue-carbon interventions.
Seaweed afforestation at large-scales exclusively for carbon ...
2022年10月20日 · Large research gaps remain around how much carbon from seaweed makes it into the deep ocean where it becomes a long-term sink, and its potential impacts on deep-sea benthic communities (Filbee-Dexter et al., 2018; Krause-Jensen et al., 2018).