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Politics : Formerly About Advanced Micro Devices

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To: i-node who wrote (442367)	12/24/2008 12:07:20 PM
From: combjelly	1 Recommendation Read Replies (2) of 1575747

"Yeah, it would be a disaster to get saltwater in Puget Sound." I am guessing you haven't looked at a map. If you did, you'd realize that Puget Sound is an estuary. A little investigation would turn up the fact that the salinity in Puget Sound is somewhere between 21 and 27 parts per thousand(ppt). Now, open seawater is usually around 35 ppt. Which means the flow between Puget Sound and the ocean is restricted. Given that Seattle has 4 million people, and roads to match, it is pretty likely that salt runoff from deicing the streets could change the salinity in the Sound. Now, factor in that organisms have different toleration for different levels of salinity and... Quick example. At Galveston, I have personally measured the salinity near shore at everything between 18 and 28 ppt. It varies with the season because the amount of fresh water influx varies a lot. You have a different near shore assemblage of fish and other biota depending on the salinity. For example, sea nettle only come close to shore when the salinity is on the high end. Flounder are more abundant when the salinity is low.

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