The beautiful Island of San Andrés is part of the Archipelago of San Andrés, located in the Caribbean Sea and belonging to Colombia since 1803. This archipelago is made up of two more islands: Providencia and Santa Catalina. However, the largest island of all is San Andrés, with about 26 square kilometers of surface. Due to its great biodiversity and animal and plant wealth, the Archipelago has been declared a World Biosphere Reserve. On the other hand, in order to preserve this imposing treasure of nature, it has been categorized as a Marine Protected Area, with the aim that we can enjoy it for a long time.



The island is also known as the "Island of the Sea of Seven Colors", due to the great variety of shades of blue and green that can be seen on the Caribbean beaches, and which contrast with the white and coral sand. Many of its shores are almost virgin, and in them we can find many species of corals, both hard and soft, as well as sponges, fish and starfish. Its beautiful, colorful and beautiful reefs and islets surrounded by corals are also remarkable. For this reason, in addition to its well-cared shores, its great variety of marine species and its almost ten hours of sunshine a day, it is one of the most sought-after diving destinations in the Caribbean Sea.


  Marine biodiversity of San Andrés



The dataset comprises an inventory of the fauna recorded in the upper mesophotic zone (30-70 m depth) on the western (leeward) side of San Andrés Island, Colombia. The data set includes a list of all species of algae, corals, sponges and fish that were observed during an underwater exploration with technical diving using closed-circuit equipment (rebreather). Additionally, it provides data on fish abundance and catalog number of organisms collected and deposited in the Museum of Natural Marine History of Colombia (MHNMC) in Invemar.

In total, 154 species are reported, 13 species of algae, 33 cnidarians, 34 sponges, a lobster, a bryozoan and 70 species of fish. Among the 18 species collected are: 6 black corals, 6 octocorals and 3 species of hard coral.



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