"Galveston Bay usually has an ideal environment for oysters to thrive. Rivers and streams in Central and North Texas flow down to the Gulf and mix fresh water with the salty Gulf water. This allows for just enough salinity for oysters to live and reproduce.
"This year, the lack of rain and the exceptional drought caused many of the stream and rivers that feed into the Gulf to dry up. This causes the salinity to skyrocket, and in turn, become deadly to the oysters. Both predators and diseases thrive in the salty Gulf, killing off the oysters and making it impossible for fisherman to bring in the desirable shellfish.
"Louisiana and Texas account for 70 percent of the $217 million Gulf oyster industry. Oyster fishermen were hoping to make up for last year's losses due to the oil spill, but outlooks are causing them to be less optimistic. According to the Texas Parks and Wildlife Department, Galveston Bay has not seen salinity values this high since at least the 1980s."