Over the past weeks, as Texas rivers bloated to overflowing with churning runoff from May’s record-setting rains poured into the state’s reservoirs, swelling some lakes to more than twice the size they’d been just a month or so before, Todd Engeling has thought of a saying common among managers of freshwater fisheries.

“There an old adage that’s been around for a long time among fisheries biologists: ‘Stock on a rise, and advertise,’ ” Engeling, fish hatchery program director forTexas Parks and Wildlife Department‘s inland fisheries division, said. “When you have conditions like we’re seeing – lake levels rising and covering all that shoreline vegetation – that’s going to improve survival of fish you stock as well as survival of the natural spawn. It means fishing’s going to get good.”

If the adage proves prescient, a lot of Texas lakes are going to see a flush of improved fishing over coming years as freshwater fish hatched in 2015 become part of the fishery. And on some Texas waters, a good number of the fish anglers catch a year or two or five years or more down the road will have direct ties to work done this spring by Engeling and other staff in TPWD’s inland fisheries hatcheries branch.

Over the past weeks, inland fisheries crews have stocked more than 7.5 million fish – most of them fingerlings, all produced in the state’s four operating freshwater fish hatcheries – into dozens of waters across the state. Included in that number are 3.4 million Florida-strain largemouth bass, 2.2 million striped bass and 1.4 million striped/white bass hybrids as well as 40,000 bluegill and about 117,000 Guadalupe bass.

The agency plans to begin stocking millions of channel catfish into public waters during July, Engeling said.