Length at maturity of the greeneye spurdog shark, Squalus mitsukurii (Elasmobranchii : Squalidae), from the SW Atlantic, with comparisons with other regions

Size at maturity is analysed for Squalus mitsukurii from the SW Atlantic. M ales mature between 51 and 55 cm total length and females between 52 and 60 cm total length. Hence, S. mitsukurii appears to be intermediate in size a t maturity among the SW Atlantic squalid sharks. This analysis adds evidenc e of the plasticity of S. mitsukurii in size at maturity. The length-weight relationship did not differ between sexes in the SW Atlantic population, w hereas it differed in one population from the NW Pacific. Intersexual diffe rences in size at maturity in the present study were lower than those repor ted for other regions.