I'm trying to ascertain the importance of seaweeds ecosystems for sediment sequestration and storage. Given that coastal high energy environments are rocky and have little net sediment accretion , I need to focus on seaweed depositional zones and assess their relative coverage/biomass on a global scale to their total Distribution. The study is art of a review on the effect of climate change on blue carbon stocks with a focus on seagrass and seaweeds.