MARINE FARMS Marine farms exist within the area of this chart. They may not all be shown individually and their positions may change frequently. Marine farms may be marked by lit or unlit buoys or beacons. Mariners are advised to avoid these structures and their associated moorings.Mariners are advised to use larger scale charts. WRECKS AND OBSTRUCTION Nautical information necessary for navigation may not all be shown within the blue shade (up to 20 m depth conture) and in the insular area. Mariners are advised to use larger scale charts.SAILING DIRECTION,LISTS OF LIGHTS and RADIO SERVICES. SUBMARINE CABLES AND PIPELINES Not all submarines and pipelines are shown on the chart.Marines are advised to use larger scale charts. TRAFFIC SEPARATION SCHEMES(TSS) Traffic Separation Schemes exist within the area of this chart:SW of Palagruza island.Non Croatian naval vessels,tankers,nuclear powered vessels and vessels carrying nuclear or dangerous substances passing through Croatian waters must use the Traffic Separation Schemes south-west of Palagruža island. MANDATORY SHIP REPORTING SYSTEM For details on mandatory ship reporting system in Adriatic Sea (ADRIAREP,Croatia VTS,Ploče VTS,Dubrovnik VTS,Bari VTS,Motenegro VTS),see RADIOSLUŽBA ZA POMORCE. TIDAL LEVELS REFERRED TO CHART DATUM MHHW(SVVV) MHW(SVV) MLW(SNV) MLLW(SNNV) UBLI (LASTOVO) 42°45'N 16°50'E 0.34 0.30 0.07 0.05 DUBROVNIK 42°40'N 18°04'E 0.34 0.30 0.07 0.05 KOMIŽA 43°03'N 16°05'E 0.37 0.31 0.07 0.04 VIS 43°04'N 16°12'E 0.37 0.31 0.07 0.04 MHWS(SVVŽ) MHWN(SVVM) MLWN(SNVM) MLWS(SNVŽ) VIESTE 41°53'N 16°11'E 0.30 0.20 0.20 0.10 MELJINE 42°27'N 18°34'E 0.30 0.20 0.20 0.00 BAR 42°05'N 19°05'E 0.30 0.20 0.20 0.00