Berkley Fishing manufactures a wide variety of high-performance fishing lines, including monofilament and fluorocarbon lines. Historically, monofilament lines had slippage in the knots, so Berkley developed a specific knot, the Trilene, to go with their Trilene monofilament line.
Starting the Trilene
To start the Trilene knot, pass it through the hook, wrap it around, and then pass it through the eye of the hook again to form two loops near the hook eye.
Pull the line up, leaving the two loops near the base, and wrap the line downwards around the main part of the line three to six times. Pull the line through the two loops at the base. Lubricate the knot with saliva and pull it tight.
While the Trilene was specifically developed for Berkley Trilene line, other knots work with Berkley lines. The Palomar is one of the more popular. This knot is formed by sliding a loop of line through the eye and then tying an overhand knot with the loop, sliding the remainder of the loop over the hook and pulling it tight. The Albright knot can be used to join two monofilaments together and is created by putting a loop in the thicker line, threading the thinner line through the loop and wrapping several loops around it, then sliding the line end through the first loop formed. Other knots include the Uni and the Rapala.