biomasse (1) région (1) productivité (1) surpêche (1) modèle (1) gestion (1) stock de poisson (1) pêche (action) (1) pêche (général) (1) eutrophisation (1) Mer noire (1) Case (1) Exploitation (1) Biomass (1) Rates (1) Value (1) Threats (1) Revenue (1) Weight loss (1) Process (Law) (1) Management (1) Grammar, Comparative and general--Case (1) Fishing (1) Fisheries (1) Example (1) Eutrophication (1) Engraulis encrasicolus (1) Discount (1) Communities (1) Climatic changes (1)