Salt lakes are a good deal more varied in many physico-chemical features than freshwater lakes.
Most saline lakes are also defined by endorheic drainage basins, so that most slat lakes represent the termini of inland drainage basins in which there is a balance between inputs and outputs. On the other hand, solar salt ponds drawing water from the sea, and in which this water is progressively concentrated, do have many similarities to salt lakes. One should note that 70 percent of all inland salt water is held in the Caspian Sea. But in this regard, note that about 40 percent of global freshwater is held in Lake Baikal and the Great Lakes of North America. Perhaps threats to salt lakes are even greater than to freshwater lakes because of a general perception that salt lakes are less valuable than other sorts of inland water.