She guessed that the word "teeming" must have been coined to describe places like the harbor on this little island. Since then, though, it had been hopelessly diluted by application to such subjects as Manhattan traffic, jungles, and beehives, none of which really approached the level of activity and jam-packed-ness that was belaboring Zula’s eyes as they chugged deeper and deeper into the harbor. You’d think that having so much in such a small space would lead to less, rather than more, activity, since crowding made it harder to move, but none of the people who lived here seemed to be aware of any such equation. The outskirts of the bay were gridded over with raftlike structures about the size of city blocks, each consisting of numerous square pens, separated by gangplanks, and covered with stretched netting. The gangplanks were supported by various kinds of floats, including plastic tanks filled with air, giant sausages of closed-cell foam, or simply large plastic bags stuffed with Styrofoam peanuts. Each of these rafts supported a little shack. Zula reckoned that they were fish farms.