Which game in the "Monster Hunter" series introduced the monster "Gobul"?

Monster Hunter Tri introduced the monster Gobul. This game marked the third installment in the Monster Hunter series and was released for the Wii console. Gobul is a piscine wyvern with unique electrifying abilities, making it a challenging and iconic creature within the game. With its distinctive design and gameplay mechanics, Gobul became a memorable addition to the Monster Hunter universe, leaving a lasting impact on players when it was introduced in Monster Hunter Tri.