مهدی محمدی

In this study, some of the most important biological characteristics of the fish (Capoeta capoeta intermedia) of the carp family fish widespread in the catchment area of ??Bushehr province in southern Iran, in particular, that of Shapour River in Saadabadi (Bushehr) from December 1391 to December May be fished in 1392, was investigated. A total of 330 fish were 197 female and 133 male. The material length range (total length) from 15 to 29 cm (3/2 ± 83/19) and a weight range of 36 to 250 g) 38 ± 4/93 (and for males from 15.5 to 26 cm ( 2 ± 85/19) the length and weight of 36 grams 27/183) 9/25 ± 24/87 (the. length-weight relationship for females W = ??????L????, fish M w = ??????L???? ???? W = ??????L were estimated for whole fish. comparing the values ??obtained with the constant b 3 b = represents isometric growth for females and males is negative allometric. condition factor for cattle from 82 /. to 53 / 0.1 male to female sex ratio varied .. ((M / F67 / 0 to 1 in fish were caught egg diameter 61/406 micron minimum maturity of up to 94/2112 in step 2. in step 5 microns increased maturity. mean absolute and relative fecundity 63/2252 and 08/22 oocytes were calculated respectively. histological studies and indicators of maturity (GSI), represents two of the spawning period (March and June) in these fish. no signs of hermaphrodite fish found in black.