FIGURE 2. Ecological links between intensive fish and shrimp aquaculture and capture fisheries.
From the following article:
Effect of aquaculture on world fish supplies
Rosamond L. Naylor, Rebecca J. Goldburg, Jurgenne H. Primavera, Nils Kautsky, Malcolm C. M. Beveridge, Jason Clay, Carl Folke, Jane Lubchenco, Harold Mooney and Max Troell
Nature 405, 1017-1024(29 June 2000)
doi:10.1038/35016500
Thick blue lines refer to main flows from aquatic production base through fisheries and aquaculture to human consumption of seafood. Numbers refer to 1997 data and are in units of megatons (million metric tonnes) of fish, shellfish and seaweeds. Thin blue lines refer to other inputs needed for production. Hatched red lines indicate negative feedbacks.