(DES ALLEMANDS, La.) — Otto Candies announced on Thursday that it has expanded its offshore fleet by acquiring four multi-purpose supply vessels (MPSVs) from Harvey Gulf International Marine of New Orleans. Harvey Blue-Sea, Harvey Sub-Sea, Harvey Deep-Sea and Harvey Intervention, all DP-2-class MPSVs, joined the Otto Candies fleet on Oct. 23, according to Otto Candies. "This acquisition represents a meaningful…