At first glance, there might not appear to be a significant relationship between Texas river water and the general well-being of the fish, shrimp, crab and oyster populations that live up and down the Gulf Coast. But a closer look reveals otherwise. Texas rivers, reservoirs and lakes all provide tremendous amounts of freshwater which eventually flow into coastal bays and estuaries. Freshwater also reduces the salinity levels in the estuaries by mixing with saltwater from the Gulf.
Low salinities are essential for the survival of many species.
Despite its importance, there are not yet any laws in Texas to guarantee that freshwater inflows will reach the state's bays and estuaries in sufficient amounts and at the proper times. This issue was one of the most complex and politically sensitive issues facing Texas policymakers in the recently concluded Legislative Session. The proposal has been signed by the Governor, will be voted upon by Texans in November elections and, if passed, will become law. Until recently, data on the amount and timing of inflows and their impacts upon the state's estuarine ecosystems were nonexistent. A series of technical reports followed, containing specific information on the seven major estuaries in the state which stretch the length of the Texas Gulf Coast from Port Arthur to Brownsville.