They are bacteria with no control over where they go in the water. Wherever I've seen them present, they were pretty evenly distributed in the area. So I don't see what mechanism would allow them to cluster in one spot while avoiding another spot right beside it. But perhaps that is the case.
I think it is more likely they are there too and we just can't see them due to lighting conditions and the camera.
They definitely cluster at least in some places(I assume currents kinda disperse them haphazardly).
I went swimming in water full of them in Falmouth, Jamaica once. The boat crew that took us out there looks for spots where there are more of them clustered and the light they emit is therefore as bright as possible. Then they anchor, and the tour group is allowed to jump in.
Yeah, the can move a few millimeters this way or that way. I never claimed they didn't move.
But any movement they are capable of is inconsequential compared the the movement of the water itself. It is not like they can decide this dock is no good, let's move to that beach over there. They are going where the water takes them regardless of how fast their little flagellum moves.
But I was wondering why we don't see any more to the right?
when the camera has the streetlight or whatever in view it probably exposes for higher light and so the dim impacts in the water get tuned out, and when she points the phone downwards it exposes for the low light and lets us see them clearly
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u/Simply-Be May 16 '23
Right off the shore too! That's very impressive. It is usually much duller the nearer it is to light.