Roseau Canes

[Gottogo49]

Just got back from a trip to Venice, much of their fishing is centered around fishing the roots of roseau canes. Does anyone know why they have so much more roseau there than we do around Calcasieu lake. It's doesn't seem to be just salinity because they have roseau growing along the Gulf in some places. Big lake seems to have more salt grass or wire grass along the shore line. No big deal, just curious.