These experiments were with different species of sharks, the eating study was done under specifically rigid conditions, but it seems worth considering that the Kavachi waters have altered the sharks patterns of behavior within what has been studied in the articles above. The higher acidification may have a pacification effect on the sharks coupled with a desire to stay in the area and keep swimming. Kind of shark catnip like your idea?
That's kind of what I was thinking, yes. There's literally something in the water the sharks find particularly pleasant.
There's something in the forest preserve a few blocks from here that seems to attract coyotes in a similar way. A grassy area not far from the camp grounds; it's not like they're actually hunting or scavenging or anything, they mainly just show up, roll around for about half an hour and then run away. Always in the same spot. Even the animal control guys aren't sure why.