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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/17211

Title: Evaluation of the stocks of Hypnea musciformis (rhodophyta: gigartinales) on two beaches in Bahia, Brazil
Other Titles: Brazilian Journal of Oceanography
Authors: Caires, Taiara Aguiar
Costa, Iara Oliveira
Jesus, Priscila Barreto de
Matos, Mara Rojane Barros de
Pereira Filho, Guilherme Henrique
Nunes, José Marcos de Castro
Keywords: Bahia;Biomass;Carragenophyte;Seasonal Variation;Seaweed
Issue Date: 2013
Abstract: Hypnea musciformis occurs widely in the northeast coast of Brazil, and it is one of the most important natural sources of k-carrageenan, which is used in food and cosmetic industries. Despite its potential for exploitation little is known about its ecology. The aim of this study was to investigate the biology and ecology of H. musciformis in Brazil through analyses of biomass stock and accompanying flora. Two populations of H. musciformis were analyzed: those on the beaches of Stella Maris and Itacimirim (Bahia, Brazil). Eight samplings were conducted between 2007 and 2009 during the dry and rainy seasons. The algae were sampled along transects (20 m) using quadrats (0.04 m2) in three different hydrodynamic regions of the reefs (TP, PRR and FRR). The t-Test, Dunn's Test and parametric and nonparametric ANOVA were used for statistical analyses. 17 host species and 41 associated species were identified. The highest biomass stock was observed during the dry season. On Stella Maris, the region with the highest biomass stock was FRR; on Itacimirim, TP had the highest biomass value. This study permits the assumption that seasonality, microhabitat, hydrodynamic and micro scale factors contribute to variation in biomass stock in H. musciformis populations.
Description: p.65-71
URI: http://repositorio.ufba.br/ri/handle/ri/17211
ISSN: 1679-8759
Appears in Collections:Artigos Publicados em Periódicos (Biologia)

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