length-weight relationships were estimated for three gobiid species of iran. significant length-weight relationships with high correlation coefficient were found for all species from eight localities. the value of the parameter b varied between 2.196-2.498 for boleophthalmus dussumieri (valenciennes, 1837); 2.554 to 3.460 for periophthalmus waltoni (koumans, 1955) and 2.316 to 2.920 for scartel...