It takes almost three pounds of wild fish to grow one pound of the commercially farmed delicacy, salmon. Similarly, shrimp farmings uses up more fish protein than it produces, and both degrade
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/shrimp-and-salmon-aquaculture-depletes-worldwide-fishing-resources-new-study-finds
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fisheries