Author(s): Y Mazlum, M Fatih Can, A G Eversole
Length–weight (TL vs WWT) and chelae length–width (ChL vs ChW) relationships were described for juveniles, males and females, and for form I and form II males of Procambarus acutus acutus. The length–weight relationships for juveniles, form I, form II males, and females could be described as: WWT = 5 × 10−3 TL3.09, WWT = 6 × 10−3 TL3.61, WWT = 6 × 10−9 TL3.26, and WWT = 6 × 10−4 TL3.5, respectively. In all forms, growth was allometric (P < 0.05). The ancova test indicated that slopes and intercepts of the length–weight regressions were significantly different between sex and sexual stages. The regressions for chelae length–width relationships for form I and form II males, and females were: ChW = −0.81 + 0.27CL, ChW = −0.33 + 0.25CL, and ChW = −0.82 + 0.32CL, respectively. Although the slope and intercepts of regressions for ChL and ChW were similar for those of form I and form II males, the slopes and intercepts of regressions of females were significantly different from form I and form II males. No statistical difference was observed in mean ChL between form II males and females (P > 0.05), but a significant difference was detected in mean ChL between form I and form II males (P < 0.05) and form I and females (P < 0.05). Form I males had longer ChL than form II males and females. The same trend was observed in mean ChW for form I and form II males, but a significant difference was detected between form II males and females (P < 0.05). In addition, results indicated that chelae lengths and widths increased allometrically with total length (TL) for both sex and sexual stages.