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'Fishing many larger fish is becoming unsustainable.' IT IS unsustainable. Many fisheries have already collapsed with many more collapses looming on the horiz

• wisty 15y ago
  Also note, Math for Industry 201 always uses fish stocks as an example. Catch too many fish, and you get a suboptimal population growth - the babies that do get born do well (due to a lack of competition), but there's so few born that this doesn't really matter. It's more true for slow growing fish, like salmon, and tuna. Fun fact, the International Whaling Commission (IWC) was not formed to stop whaling, but because it was obvious that whale stocks had collapsed, and international co-ordination was needed to allow them to grow back to an economic level. The whaling industry collapsed slowly, got a second wind as steam ships made fast-moving blue whales a feasible target, then collapsed again as the blue whales ran out. The IWC was formed in 1946, and it wasn't until the 70s that the anti-whaling movement gained any steam.