From 1980 to 2010, both the production and the value of marine culture of the Yellow Sea ecosystem showed an increasing trend ( Figs. 2 and 4 ).
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In contrast, the quantity of laver showed a trend of greater volatility, while seaweed quantity showed little change.
Provisioning services: raw materials Since 1995, the fishing yield of anchovy increased significantly, reaching the largest catch of 0.9 million tonnes in 2000, but then showing a decreasing trend after 2000 ( Fig. 6 ).