Distribuição da comunidade meiofaunística entorno do Hotel Tropical Tambau, João Pessoa - PB.

Abstract

The meiofauna is formed by small marine invertebrates with size ranging from 0.045 mm to 0.5 mm which live in close association with the sediment, one of the reasons in which they are being widely used as bioindicators of environmental impacts. This study aimed to evaluate the influence of the concrete structure of the Tropical Tambaú Hotel located in the middle and supralittoral of Tambaú beach, João Pessoa/PB, on the meiofauna community, through temporal and spatial analyzes, associated with abiotic factors found in the region. Two samplings were carried out during the year 2013, the first sampling was made in April, characterized as the rainy season and the second was held in October, featured as the dry season, in 3 rays starting from the hotel wall, denominated right (1,2 and 3), center (1,2 and 3) and left (1,2 and 3). At each point four samples were taken using a PVC pipe of 9.42 cm² of internal area buried 15 cm in the sediment. In the laboratory, organisms were counted and identified at the level of large groups. After identification, the data were submitted to statistical analysis to determine the density, frequency of occurrence and relative abundance of groups found. In the rainy season, the meiofauna of the region was represented by 13 taxons: Acari, Amphipoda, Copepoda, Gastroticha, Insecta, Kinorhyncha, Nauplius, Nematoda, Olygochaeta, Ostracoda, Polychaeta, Simpucula and Tubellaria, in the dry period the number of groups found was 10: in the dry period the number of groups was found 10: Acari, Copepoda, Gastroticha, Loricifera, Nauplius, Nematoda, Olygochaeta, Ostracoda, Polychaeta and Tubellaria, being Nematoda the group that stood out the most in density, relative abundance and frequency of occurrence in both temporal and spatial analysis. Statistically the community presented itself differently in rainy and dry seasons, as well as in nearby, medium and distant points of Tropical Tambaú Hotel.