Marriage of the Sea ceremony of the sea continues to this day. It is performed by the mayor of Venice aboard a smaller ceremonial barge called the "Bissona Serenissima". Marriage of the Sea ceremony The Marriage of the Sea (), sometimes referred to as the Marriage of the Adriatic, was an ancient ceremony which used to symbolize the maritime dominion of Venice. The ceremony, established in about 1000 AD to commemorate the Doge Pietro II Orseolo's conquest of Dalmatia, was originally one of supplication and placation, Ascension Day being chosen as that on which the doge set out on his expedition. The form it took
Sea urchins of the Gulf of California is a sea urchin endemic to the Gulf of California. Approximately 23 species of sea urchins, 3 species of heart urchins, and 9 species of sand dollars call the Gulf of California habitat their home. Where they are found throughout the Gulf of California, can be classified into three biogeographic regions called the Northern Gulf, Central Gulf, and Southern Gulf. Two other regions are also used to classify sea urchins and other marine animals, and are called the Southwest Baja California Sur Region and the Colorado River Delta Biosphere Reserve. World Distribution Acronyms are used by marine biologists to designate