From reports, whereas 8,000 tons of this species were landed in 1986 (in Carneiro and Castro, 2005, as M. ancylodon), the catch decreased to 4,000 tons in 2002 (a decline in commercial stocks of at least 50% over this 16-year period). In southern Brazil, demersal resource stocks evaluation obtained from 1975 to 1994 show a decreasing total biomass since the beginning of exploitation and that the resource is heavily exploited in that region (Haimovici, 1998, as M. ancylodon) (Ref. 88197).