Discharges of all types are released into rivers that eventually flow into the Texas bays. This residential and industrial growth takes its toll on fisheries stocks when not done in a responsible manner. These canals do not allow for fresh water to circulate which depletes the levels of dissolved oxygen. Low D.O. can cause widespread mortalities in aquatic ecosystems. An increased demand on waste water facilities and the demand for limited fresh water leaves less for fish and wildlife.
Oil exploration destroys natural fish and wildlife habitat.
This industry also releases hazardous supplies of wastewater. Bycatch mortality occurs when unwanted species appear in the nets and die before they are removed and returned to the water. The use of pesticides and fertilizer is common for the agricultural industry. However, these chemicals, along with sediment, can run off into streams and rivers. Unfortunately, this industry provides the potential for brine releases and toxic chemical releases in sensitive areas due to transport and refinery operations.