The Object Of This Contract Is The Hiring Of A Specialized External Service For The Execution Of The 2026 Operational Action Plan For The Conservation And Consolidation Of The Marble Net (Marmaronetta Angustirostris) In The Sèquia Major, In Tarragonès. The Service Includes Actions To Strengthen The Population, Advanced Scientific Monitoring, Control Of Biotic Risk Factors And Habitat Improvement, With The Aim Of Guaranteeing The Long-Term Viability Of The Nesting Population And The Ecological Quality Of The Ecosystem. The Actions Will Be Carried Out In Accordance With The Protocol Established Between The Generalitat De Catalunya, The Generalitat Valenciana And The Ministerio Para La Transición Ecológica Y El Reto Demográfico (Miterd), Within The Framework Of The Comité Flora Y Fauna, Grupo De Trabajo De Anátidas Amenazadas.