Types of synoptic situations that favored the arrival of sargasse to the cuban coasts in the period july 2021 – june 2023
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Abstract
In Cuba, both on the northern and southern coasts, the presence of sargassum has occurred and has been reported from various observation angles by different authors. These macroalgae cause an increase in the mortality of several marine species such as fish, sea turtles and coastal invertebrates and can have a severe impact on local fishing, aquaculture and tourism. For this reason, it is of great importance to know the favorable atmospheric conditions for the movement of sargassum. Taking into account the above, the main objective is to analyze the Types of Synoptic Situations favorable for the arrival of sargassum to the Cuban coasts. In this article, the classification of the Types of Synoptic Situations developed by Lapinel in 1988 was used. It was demonstrated that the synoptic situation that most frequently influences the Cuban archipelago is the migratory continental anticyclone, followed by the subtropical oceanic anticyclone and the extended anticyclonic flow. In addition, it was shown that the winds of the first and second quadrant, imposed by high pressure systems, are important factors in the arrival of sargassum to the Cuban coastlines. On the other hand, it was found that the southern coast of Cuba is more affected by the arrival of sargassum than the northern coast, with the eastern region being the one that presented a greater number of reports of the arrival of these macroalgae, mainly the Guantánamo province. Also, it was evident that in the rainy period (May - October) the Cuban coasts are most affected by the arrival of sargassum, with the months June and September being the most representative.
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