An 11% evaporation rate would mean your salinity would go up by 11%. So unless my math is wrong, your salt would go from 1.023 to 1.136, which is "off the charts" for all intents and purposes for our inhabitants. Think of it this way--if you have a 90 gallon tank, if 11% of your water would evaporate, that's 9.9 gallons! Not only would your water level go down at least 2 inches or so, but your water would be super hyper-salinated to the point where you might lose everything in your tank. Here's an article that's sort of related to your question, and will give you an idea about evaporation rates, dilution rates, and their respective effects on salinity. I think the author really knows what he's talking about!