History of the Republic of Venice were little compensation. This was the last war of the Republic with Turkey. The decline of Venice in the 18th century was also due not only to Genoa, Venice's old rival, but also to Livorno, a new port on the Tyrrhenian Sea created by the grand dukes of Tuscany and chosen as staging-post for British trade in the Mediterranean. Still more injurious were the Papal town of Ancona and Habsburg Trieste, a free port since 1719, in the Adriatic Sea, which no longer constituted a "Venetian Gulf". An eminent Venetian politician of the time declared, "Apart from the residue which
Gulf of Bothnia a number of rivers from both sides; consequently, a salinity gradient exists from north to south. In the south the water is the normal brackish water of the Baltic Sea, but in the north, in the Bothnian Bay, the salinity is so low, from 0.4% near Kvarken to 0.2% in the northernmost part, that many freshwater fish such as the pike, whitefish and perch thrive in it. Being nearly fresh, the gulf is frozen over five months every year. The icing of the Baltic Sea begins and ends in the northern Gulf of Bothnia. Traffic restrictions for icebreaker assistance are