The results from searching for life in the Dead Sea, which Titan's oceans are being compared to in this article.
Really, people, it's called the "Dead Sea" NOT because life finds it easy in there! Life can be found, but only in very particular areas where the water chemistry is different that what is found in the vast majority of it....
The Dead Sea is home to billions of organisms. It is literally teaming with life.
In Titan's sea, there may also be "very particular areas."
Regards,
In evolutionary terms, the Dead Sea is minutes old. Life that evolved to live in the Atlantic has yet to adapt to such brine. If such a high salt sea were all that existed, I don’t doubt that originating life could deal with it.