Artículos
v. 28 n. 1 (2026): Mesoamericana
A study of the malacological fauna was carried out with the purpose of identifying the species of gastropods, in four stations of the Bay of Chame, Province of Panama Oeste. The samplings were carried out monthly for six months (July to December 2009), in the sampling stations were from the mangrove area of El Líbano, Punta San Juanito, Banco del Río Sajalices and El Banco Negro; these were cataloged according to the granulometry of the sediment as muddy, sandy and sandy-muddy; additionally, for the mangrove area in El Líbano, the trunks, root and mud substrates were considered. The organisms were obtained manually and immediately introduced into previously labeled plastic bags; Later the snails were separated for identification up to the category of species. For the substrates studied (trunk, root and mud) in Lebanon, analyses of the Shannon-Wiener diversity indices, Simpson predominance and Equitativity were presented. A total of 3322 individuals were collected distributed in 30 genera and 38 species; the most dominant were: Cerithideopsis californica (Haldeman, 1840) with n=1202, 36.18%, Littoraria varia (G. B. Sowerby I, 1832) with n=644, 19.39%, and Thaisella kiosquiformis (Duclos, 1832) with n=542, 16.31%, the highest indices of diversity, abundance and homogeneous distribution were obtained in the mud substrate. In addition, El Líbano registered the highest abundance, however, it showed less diversity, compared to the other stations, with El San Juanito, Sajalices River Bank and The Black Bank being the stations with the highest diversity of species, which is related to the environmental characteristics of the area, such as currents and predominance of winds.
