Resumen

AGUILAR-ROSAS, R.; LOPEZ-CARRILLO, M.  y  AGUILAR-ROSAS, L. E.. MACROALGAS MARINAS DE LA BAHÍA DE SAN QUINTÍN, BAJA CALIFORNIA, MÉXICO. Polibotánica [online]. 2005, n.19, pp.19-38. ISSN 1405-2768.

In order to know the composition and distribution of macroalgae species in the lagoon complex of San Quintin Bay, Baja California, nine sampled were realized in three sites during 1988, 1989, 1990, 1995 and 1996; also a bibliographyc revision on the marine benthic algae cited from the study area. A total of 37 genera with 46 species of marine macroalgae were determined, of which 22 are Rhodophyta, (47.82 %), 12 Phaeophyta (26.08 %) and 12 Chlorophyta (26.08 %). The floristic list includes data on the presence and distribution of species found, reproductive stage, substrate and epiphytism. The families with best representation with regard to richness and occurrence are: Corallinaceae, Ceramiaceae, Rhodomelaceae (Rhodophyta); Ectocarpaceae, Scytosiphonaceae (Phaeophyta) and Ulvaceae (Chlorophyta). 18 (39.13 %) represent new records from the study area. Ulva expansa Linnaeus is reported for the first time for the occidental coast of Baja California. The floristc list and the bibliographyc information were actualized; the dates show that the number od species of marine algae from San Quintin Bay is composed for 59 species.

Palabras llave : Marine macroalgae; Rhodophyta; Phaeophyta; Chlorophyta; San Quintín Bay; Mexico.

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