Distribution of epiphytic macroalgae on the thalli of their hosts in Cuba

Acta Botanica Brasilica

Yander Luis Diez García¹  Abdiel Jover Capote²  Ana María Suárez Alfonso¹  Liliana María Gómez Luna¹  Mutue Toyota Fujii¹ 

[1] ,Universidad de Oriente Departamento de Biología Santiago de Cuba,Cuba

关键词: Chlorophyta;    epiphytism;    distribution;    Phaeophyceae;    Rhodophyta;   

DOI  :  10.1590/S0102-33062013000400022

来源: SciELO

【 摘 要 】

We investigated the distribution of epiphytic macroalgae on the thalli of their hosts at eight localities along the southeastern coast of Cuba between June 2010 and March 2011. We divided he epiphytes in two groups according to their distribution on the host: those at the base of the thallus and those on its surface. We determining the dissimilarity between the zones and the species involved. We identified 102 taxa of epiphytic macroalgae. There were significant differences between the two zones. In 31 hosts, the number of epiphytes was higher on the surface of the thallus, whereas the number of epiphytes was higher at the thallus base in 25 hosts, and the epiphytes were equally distributed between the two zones in five hosts (R=−0.001, p=0.398). The mean dissimilarity between the two zones, in terms of the species composition of the epiphytic macroalgae, was 96.64%. Hydrolithon farinosum and Polysiphonia atlantica accounted for 43.76% of the dissimilarity. Among macroalgae, the structure of the thallus seems to be a determinant of their viability as hosts for epiphytes.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License