Other than their temperature sensitivity, tilapia exist in or can adapt to a very wide range of conditions. An extreme example is the Salton Sea, where tilapia introduced when the water was merely brackish now live in salt concentrations so high that other marine fish cannot survive.The Salton Sea: Fishing for AnswersA half-century later, a few species of fish have been hearty enough to survive. One of them is the tilapia and its key to the survival of the Salton’s ecosystem, which includes millions of birds that depend on them for food...“The salinity level of the Salton Sea is about 45 parts per thousand (ppt), which is about 30% saltier than the ocean"</ref>