Salinities: PPT vs PPM

[Smalls]

Ok, I'm not trying to knock anyone here, just thought I would post this as a little friendly education opportunity. I've seen a lot of people on here that seem to be misinformed as to what a saline environment is. A lot of people use ppm on here, which is nothing wrong with that, but I feel some people don't know how much 5 ppm is for example.

Ppm means parts salt per a million parts water, so 5 ppm is not a high salinity. On the other hand, 5 ppt, which is 5000 ppm, is a much higher salinity (obviously). Sea water is 32 ppt, brackish marshes are from about 3 to 15 ppt, and 15 to 32 ppt is a salt marsh. That depends on what system you go by, numbers vary based on source. I can tell you the salinity at the weirs before all of this rain was in the 28 ppt range. Everyone that fished down there before all this rain started back in January knows how saline it was.

So hope that gives yall alittle better understanding of salinities and concentrations. Hope I didn't offend anyone, just thought I would offer some of my expertise on the topic.

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