Hi:

I have a friend who is a keen fisherman. The lake where he often goes is
run by a man who told him that high atmospheric pressure can push the
oxygen out of the water and thus adversely affect the fish.

I'm not at all clear exactly how fish collect their oxygen from the
water, but I remember reading somewhere that it depends on positive and
negative pressures in (?) the gills. But would atmospheric pressure have
enough effect on the fish to disrupt their "breathing"?

Or is there another mechanism at work here? Possibly pressure pushes the
water molecules closer together and presses out the dissolved oxygen?

Hope someone here knows.

TIA

Hugh

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Hugh Newbury

www.evershot-weather.org