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Composition, abundance and chaetognath species distribution in the north littoral of the Mexican Caribbean Sea

Species composition and variations in abundance of chaetognaths from the north of Quintana Roo were carried out from January to December 2004. Sampling was made near surface with a conical net (0.40 m, diameter; 330 μm mesh) at 12 stations from Puerto Morelos to Cancun. Temperature and salinity were measured in situ. Weather conditions were atypical with previous reports (dry, rains, nortes). Instead, a better correlation was observed with the environmental conditions of the lagoon, reef and oceanic zones. A total of 16,966 chaetognaths were captured with an annual mean abundance of 575 org./100 m3. Eleven species of chaetognaths were recorded, with Ferosagitta hispida as the most Álvarez-Cadena J. N., A. R. Almaral-Mendivil, U. Ordóñez-López, y A. Uicab-Sabido. 2008. Composición, abundancia y distribución de las especies de quetognatos del litoral norte del Caribe de México. Hidrobiológica 18 (1 Suplemento): 37-48.