According to the script, the pronunciation for Merik was "MER-ick". 
According to the Star Trek: Star Charts (p. 75), the Merik system was located in non-aligned space. This system was a single star system. Primary was a Class F star with a magnitude of +7, which was 1/10 the brightness of Sol. This system was a destination on the Gamma Quadrant Bio-Survey (2369-75).