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ALGAE > Volume 23(3); 2008 > Article
ALGAE 2008;23(3): 201-207. doi: https://doi.org/10.4490/algae.2008.23.3.201
First Record of Ulva pertusa Kjellman (Ulvales, Chlorophyta) in the Pacific Coast of Mexico
Raúl Aguilar-Rosas1*, Luis E. Aguilar-Rosas2 and Satoshi Shimada3

1Facultad de Ciencias Marinas, Universidad Autónoma de Baja California, Apartado Postal 453, 22830, Ensenada, Baja California, México
2Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Apartado Postal 453, 22830, Ensenada, Baja California, México
3Division of the Natural/Applied Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, 1128610, Japan
*Corresponding Author  Email: raguilar@uabc.mx
ABSTRACT
Based on samplings during 2006-2007 on the intertidal zone of Playa Tampico, Erendira and Punta Baja, Baja California, Ulva pertusa Kjellman (Ulvales, Chlorophyta) was recorded for the first time for the Pacific coast of Mexico. An alga native to Asia, U. pertusa has just recently been recorded in the southern coast of California (USA). The identification of U. pertusa was based on the observation of the morphology and reproductive characters of the collected specimens. Furthermore, the species identity was confirmed by molecular comparison between nuclearencoded ITS2 sequences of the Mexican samples and those of other Ulva species in GenBnak data. Habitat and distribution of U. pertusa along the Pacific coast of North America are also described. Considering our new report of its occurrence in Mexico, we conclude that U. pertusa is expanding its geographical distribution by trans-ocean introductions.
Key words: Baja California, introduced species, morphology, reproduction, Ulva pertusa Kjellman


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