One of the main spots the large rays frequent is around a set of stairs that descend into the ocean. It’s where local fishermen toss back any unwanted fish and so the area has become a harbor hot spot where many sea creatures stop by hoping to find an easy meal.

Once upon a time, the seas teemed with mackerel, squid and sardines, and life was good. But now, on opposite sides of the globe, sun-creased fishermen lament as they reel in their nearly empty nets.

What follows is unavoidably abstract and general in the extreme.