Germination and survival of tetraspores of Kappaphycus alvarezii var. alvarezii (Solieriaceae, Rhodophyta) introduced in subtropical waters of Brazil

Cristian Bulboa, Edison J. De Paula, Fungyi Chow

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The carrageenophyte Kappaphycus alvarezii was introduced in 1995 and vegetatively propagated in Ubatuba, São Paulo State, Brazil, for the purpose of commercial cultivation. This species produces tetraspores mainly in the austral summer and fall. Tetraspore germination and survival were studied under different conditions of temperature, photon flux density, and photoperiod in the laboratory. Field experiments were also carried out. Although tetraspores of K. alvarezii germinated, they had low survival rates, most dying after 20 days. Recruitment of K. alvarezii tetraspores did not occur in experiments conducted in the field. The results indicated that the establishment of K. alvarezii via spore production in the natural environment of the south-east coast of Brazil is rather remote.

Original languageEnglish
Pages (from-to)39-45
Number of pages7
JournalPhycological Research
Volume56
Issue number1
DOIs
Publication statusPublished - 1 Jan 2008

Keywords

  • Brazil
  • Exotic species
  • Germination
  • Kappaphycus alvarezii
  • Recruitment
  • Reproduction
  • Tetraspore

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Physiology

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