RESUMENSe presentan los resultados obtenidos del estudio de las algas bentónicas de Isla Verde, Veracruz, en aguas del Golfo de México. La lista florística se acompaña de datos sobre la estacionalidad de las especies y su estadio reproductivo, el nivel de marea, el sustrato, la exposición al oleaje y el epifitismo asociado a ellas.Se determinaron 5 especies de Cyanophyceae, 37 de Rhodophyceae, 6 de Phaeophyceae, 8 de Bacillariophyceae y 24 de Chlorophyceae. La flora encontrada en Isla Verde es tropical y típica de los arrecifes coralinos. Se discute la diversidad de las algas con respecto a sustrato, luz y temperatura. ABSTRACTA study on benthic marine algae from Isla Verde, Veracruz in the waters of the Gulf of Mexico revealed the existence of 5 species of Cyanophyceae, 37 species of Rhodophyceae, 6 of Phaeophyceae, 8 species of Bacillariophyceae and 24 of Chlorophyceae. The study includes information on seasonality, reproductive stage, tidal level, wave exposure, substrate and epiphytism. The species composition found in Isla Verde is of tropical affinity and representative of the algal flora associated with coral reefs as was expected. Species diversity in relation to substrate, ligth and temperature is discussed.
Se presentan los resultados obtenidos en un estudio sobre las algas marinas bentónicas en ocho localidades del litoral de Campeche, México. Se determinó la presencia de 211 taxones de algas marinas, siendo el grupo Rhodophyta el más diverso con 102 taxones, sigue en importancia Chlorophyta con 66 especies, seis variedades y cuatro formas, Heterokontophyta con 19 especies y por último Cyanobacteria con 14. La lista florística se acompaña de datos sobre presencia, estacionalidad, reproducción, nivel de marea y referencias De los 211 taxones, 30 son nuevos registros para Campeche, y se cita por primera vez a Centroceras micracanthum yStreblonema invisibile para la costa occidental del Atlántico de México. Por otro lado, se compara la diversidad específica entre la estación climática de lluvias y la de secas durante 2003, 2004, 2006 y 2007. La ficoflora ubicada en Campeche es de afinidad tropical y la diversidad más grande fue encontrada durante la época seca.
Se presentan los resultados obtenidos en un estudio sobre las algas marinas bentónicas en 7 localidades de la costa sur de Jalisco, México. Se determinó la presencia de 165 especies de algas marinas. Se identificaron 13 especies de Cyanophyta, 97 Rhodophyta, 28 Chlorophyta y 27 taxa de Heteroconthophyta. Cada especie se acompaña con datos sobre su distribución en el área de estudio, estado reproductivo, nivel de marea, hábitat, observaciones, epifitismo y número de herbario o de colecta.
The Biosphere Reserve of Sian Ka'an located in the Mexican Caribbean, where greatest diversity of seaweeds has been recorded. Despite of diversity and species richness there are limited phycological studies in the study area, suggesting that species diversity is not completely known. We reported species that complement previous reports of brown algae collected from the study area. In addition, brown algae recorded in the literature and the species present in the herbaria for the Biosphere Reserve of Sian Ka'an were also included, and data obtained from sampling at eleven localities during 2009 to 2012 were added. In all 50 infrageneric taxa are reported. Families Dictyotaceae and Sargassaceae comprised the most species richness. The presence of 11 species of Phaeophyceae is reported for the first time for the study area. Of them, Symphyocarpus strangulans is a new record for the Mexican Atlantic; eight species are new records for study area and two for Quintana Roo. The highest number of species was recorded for Punta Xoquem and Pulticub, while the lowest number of taxa was in Cayo Valencia. The highest number of species was found in summer rains, the lowest in winter rains. The obtained data highlights the high specific richness of Phaeophyceae indicating that the Sian Ka'an Reserve should be considered a priority area due to its great biodiversity. Moreover, these results will be a basis for future ecological, utilization and conservation studies.
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