Wiktionary(0.00 / 0 votes)Rate this definition: upthrust(Noun) an upward thrust. upthrust(Noun) buoyancy. upthrust(Noun) an upward movement of part of the Earth's crust. upthrust(Verb) to thrust something upwards.
Predators, Food and Feeding: Natural predators of winter flounder include sharks, oyster toadfish, summer flounder, striped bass, monkfish and spiny dogfish. When feeding, a winter flounder will lie motionless, partly concealed on the bottom, with its head raised off the bottom, braced by the dorsal fin.
Cold Weather, clear water, and star lit skies is a perfect combination for some Flounder Gigging on our Texas Coast. We are really having a great season for flounder in Texas. December and January are my favorite months for gigging flounder here in Galveston, Texas. This week we have had some spectacular trips with quick limits.