In vitro recruitment of Ulva sp. and Enteromorpha sp. on gametophytic and tetrasporophytic thalli of four populations of Chondracanthus chamissoi from Chile

Cristian R. Bulboa, Juan E. Macchiavello, Karina Veliz, Erasmo C. Macaya, Eurico C. Oliveira

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Chondracanthus chamissoi is a red alga which is acquiring an increasing economic importance in Chile and becoming a target species for cultivation. Because epiphytism is a major problem in the mariculture of seaweeds, the recruitment of Ulva sp. and Enteromorpha sp. on gametophytic (cystocarpic) and tetrasporophytic thalli of C. chamissoi was tested in vitro on four populations from different locations in Chile. For Ulva sp., the density, cover and length of the recruits varied between the reproductive phases of the host and among the studied populations of C. chamissoi. In most experiments, a larger number of epiphytic thalli was observed on gametophytic plants of C. chamissoi; populations from Calderilla and Lechagua had a higher resistance to epiphytism. For Enteromorpha sp., its ability to grow epiphytically on both phases of the host showed a greater variability, but was inferior to that of Ulva sp. The differential resistance to epiphytism in both reproductive phases and in plant origin indicates the possibility of obtaining selected strains of C. chamissoi with lower susceptibility to epiphytism that could be utilized in planning maricultural programs.

Original languageEnglish
Pages (from-to)247-254
Number of pages8
JournalJournal of Applied Phycology
Volume19
Issue number3
DOIs
Publication statusPublished - 1 Jun 2007

Keywords

  • Chile
  • Chondracanthus chamissoi
  • Enteromorpha
  • Epiphytism
  • Rhodophyta
  • Ulva

ASJC Scopus subject areas

  • Aquatic Science
  • Plant Science

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