Here are the data for five centuries of fishing for Gadus morhua. A catastrophic decline. Will over population and over emission of CO2 lead to anything similar?
Five centuries of cod catches in Eastern Canada
Estimates of North Atlantic cod (Gadus morhua) catch off Newfoundland and Labrador, Eastern Canada.
1508201916001700180019000 t100,000 t200,000 t300,000 t400,000 t500,000 t600,000 t700,000 t800,000 tEastern Canada