 Nestrans has sought assurances that additional slots released at London Heathrow Airport are retained for domestic flights from peripheral airports such as Aberdeen.Nestrans co-operates with Aberdeen Harbour Board, Peterhead Harbour Board and other port authorities in the region, to encourage haulage of freight by sea where appropriate.The Northern Isles ferry services to Orkney and Shetland operate from Aberdeen and Nestrans liaises with the operator and neighbouring partnerships on matters of mutual interest.