Jumping the Shark
Julian mentioned in passing the other day that he thought it would not obviously be immoral, and perhaps even morally desirable, to eliminate all shark species from the earth. The reasons he gave related to their limited ecological role, the fact that sharks only serve to further deplete the already under-populated reserves of bony fish (especially large pelagics like tuna and mackerel), and the suffering they inflict on other vertebrates (including other fish, aquatic birds and mammals, and higher cognitive mollusks) in the course of feeding. Lamentably (in my view), Julian’s off-the-cuff prescription is currently being fulfilled, if unintentionally: Humans are currently killing sharks at the rate of around 40 million per year (mostly for their fins alone), and since most sharks (unlike bony fish) have small numbers of offspring at a time, these rates of killing are quite likely unsustainable. Here I want to briefly touch upon the moral value of sharks, especially at the level of species.
