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More on Dolphins

Here are some links I found.
https://www.npr.org/2016/08/26/491452686/hawaiian-spinner-dolphins-show-strain-of-not-getting-enough-sleep#:~:text=They%20need%20their%20sleep%2C%20and,is%20swimming%20with%20the%20dolphins

This one corroborates the scientific view, but fails to take into consideration, that ever since Polynesians arrived on the islands, over 1,000 years ago, dolphins have been interacting with humans. I would think by now they have adjusted. Although, perhaps in the last year or five, tourism has gotten out of hand and people who don't know better are out in the water actually chasing after the dolphins. That's probably the problem; it only takes a few bad apples...
https://www.fisheries.noaa.gov/feature-story/six-reasons-why-you-should-not-swim-wild-spinner-dolphins

Here are some actual studies. Sounds to me like boat engines are the main problem, not swimmers. Also, one study concluded that “Increasing levels of human activity had a limited but measurable effect." Limited? Does that mean minor or small? But measurable? Limited to me would mean just barely measurable.
https://www.sciencedirect.com/science/article/abs/pii/S0308597X16306078?via%3Dihub

Mahalo, Harry

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