Comparación de las macroalgas epizóicas de la madreperla Pinctada mazatlanica (Hanley 1856) con las de fondos rocosos en la bahía de La Paz, Baja California Sur, México

  1. Wright López, Humberto
  2. Holguín, Oscar
  3. Sánchez Lizaso, José Luis
  4. Del Pilar Ruso, Yoana
Journal:
Mediterránea: Serie de Estudios Biológicos

ISSN: 1130-6203,  1988-6624

Year of publication: 2011

Issue: 22

Pages: 251-274

Type: Article

DOI: 10.14198/MDTRRA2011.ESP.10 DIALNET GOOGLE SCHOLAR lock_openRUA editor

More publications in: Mediterránea: Serie de Estudios Biológicos

Abstract

This study describes the algae community on Pinctada mazatlanica and compare it with the one the rocky substrate. We collected 36 samples, 18 from oysters and rocky substrate from the San Juan Nepomuceno Peninsula, La Paz Bay, Mexico. The algae were collected by SCUBA diving scraping the different surfaces (25 cm2 of rocky substrate). The sample size was adjusted by a species accumulation curve and expressed by the polynomial model. We applied multivariate analysis using Bray Curtis'index, between substrates, different pearl oyster sizes and depths. We found 27 epizoic algae species (15.4% Clorophyta, 3.8% Phaeophyta and 80.8% Rhodophyta) with a dissimilarity of 71.16% between pearl oyster and rocky substrate. The cluster analysis grouped the epizoic algae of P. mazatlanica in three assemblages. The fi rst group was formed by Chondria, Jania, Herposiphonia tenella and Gracilaria. The second group was characterized by Jania, Polysiphonia acuminata, P. decusata and Spyridia fi lamentosa. The third group includes Polysiphonia sp., Jania, Herposiphonia tenella, Ceramium canouii and Amphiroa sp. This assemblages and fi lamentous forms of epizootic algae of P. mazatlanica are in accord with the initial states of colonization.

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