The gravity of growth overfishing is increasingly recognized. The size-distribution of fish stocks is often severely truncated, even when the overall biomass is reasonably well managed. In a first part of this article, I show how the “race to fish” extends to the dimension of size: Akin to the classical Bertrand competition in prices, each agent has an incentive to target fish at a smaller size...

Human-induced stresses of overfishing, eutrophication, climate change, translocation and habitat modification appear to be promoting jellyfish (pelagic cnidarian and ctenophore) blooms to the detriment of other marine organisms. Mounting evidence suggests that the structure of pelagic ecosystems can change rapidly from one that is dominated by fish (that keep jellyfish in check through competit...

20,000 people obtained a living from this fishery. But since then, catches have fallen to around 5,000–10,000 tons but prices have risen substantially, maintaining the incentive to pursue this declining species. Overfishing, in combination with habitat loss, pollution, the damming of rivers and climate change affecting ocean currents, have all contributed to the sharp decline in eel populations...