You're making me wish I'd made note of the park signs along the Maple Trail that specify the various fish species found in the waters! Sadly, all I remember is
Guadalupe bass and other bass species, but the latter's about as helpful as if I just told you "there's fish!"
I was hoping to find more species mentioned for the Sabinal River (runs through
Lost Maples State Natural Area) on Texas Parks & Wildlife's (TPWD)
State Fish Records site,
but there's just one species currently listed -- channel catfish.
Can't help on bait recommendations since I'm not a fisherwoman, though I like a good fish meal as much as the next person!
Hunt around on Google.com a bit and you might find some more info... here's a link for starter's:
A Google search for "Sabinal River" + "fish"