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      Distribución y variación morfológica de Amphiroa beauvoisii (Corallinales, Rhodophyta) en México Translated title: Distribution and morphological variation of Amphiroa beauvoisii (Corallinales, Rhodophyta) in Mexico

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          Abstract

          Se realizaron muestreos de Amphiroa beauvoisii (Corallinales, Rhodophyta) en diversas localidades de las costas del Pacífico y Caribe mexicano de 1994 a 2007 y se efectuó una extensa revisión bibliográfica de los trabajos en los que se cita Amphiroa beauvoisii. Asimismo, se revisaron los ejemplares depositados en herbarios nacionales y extranjeros, con el propósito de determinar la distribución latitudinal, y la variación morfológica y reproductiva de esta especie. El análisis de la información nos indica que se encuentra ampliamente distribuida en la costa del Pacífico desde islas Coronados, Baja California hasta La Ventosa, Oaxaca, siendo muy frecuente en el golfo de California y en los estados de Jalisco, Guerrero y Oaxaca, mientras que en la costa atlántica su distribución se encuentra restringida a los arrecifes coralinos de Yucatán y Quintana Roo. Se describen en forma detallada los caracteres morfo-anatómicos y reproductivos. En general se observó que los talos tetrasporangiales y bisporangiales son frecuentes, de mayor talla y más ramificados que las plantas gametangiales. El material examinado mostró que en la costa del Pacifico se encuentran los talos tetrasporangiales, bisporangiales y gametangiales, mientras que en la costa del Caribe mexicano sólo se presentan poblaciones tetrasporangiales. Se registra por primera vez la fase gametofitica masculina y femenina de A. beauvoisii en poblaciones mexicanas.

          Translated abstract

          Several samples of Amphiroa beauvoisii (Corallinales, Rhodophyta) were collected in different localities along the Pacific and Caribbean coasts of Mexican from 1994 to 2007. An extensive review of Amphiroa beauvoisii recorded from Mexico was carried out. Specimens of different herbaria were examined to determine its geographic distribution, as well as morphological and reproductive data for this taxon. Analysis of this information showed that this species is distributed along the Pacific coast from Islas Coronados, Baja California to La Ventosa, Oaxaca. A. beauvoisii is frequent in the Gulf of California and Jalisco, Guerrero and Oaxaca, while on the Atlantic coast it is rare and we only found it on coralline reefs of Yucatán and Quintana Roo. Morphological variation, reproductive stage, and distinctive characteristics of this taxon are included. A. beauvoisii is an extremely variable species; the tetrasporangial and bisporangial thalli are more common, more branched and taller that the gametangial plants. We found gametangial and tetrasporangial plants on the Pacific coast and only tetrasporangial plants in the Caribbean. Male and female plants of A. beauvoisii are described for the first time from Mexican populations.

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          Most cited references81

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          PRIMARY PRODUCTIVITY OF MARINE MACROALGAL FUNCTIONAL-FORM GROUPS FROM SOUTHWESTERN NORTH AMERICA

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                Author and article information

                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                June 2008
                : 79
                : 1
                : 7-22
                Affiliations
                [01] México D.F. orgnameInstituto Politécnico Nacional orgdiv1Escuela Nacional de Ciencias Biológicas orgdiv2Departamento de Botánica México
                [03] Ensenada Baja California orgnameUniversidad Autónoma de Baja California orgdiv1Instituto de Investigaciones Oceanológicas México
                [02] Ensenada Baja California orgnameUniversidad Autónoma de Baja California orgdiv1Escuela Facultad de Ciencias Marinas México
                Article
                S1870-34532008000100002 S1870-3453(08)07900100002
                7a28b037-128b-4ce5-a0bf-fb4efe174095

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 06 December 2006
                : 20 November 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 52, Pages: 16
                Product

                SciELO Mexico

                Categories
                Taxonomía y sistemática

                Caribbean,distribución,Mexico,morphological variation,Caribe mexicano,Amphiroa,articulated Coralline,distribution,Pacífico,variación morfológica,Pacific,coralina articulada

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