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标题：Evaluation of the stocks of Hypnea musciformis (rhodophyta: gigartinales) on two beaches in Bahia, Brazil
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作者：Caires, Taiara Aguiar ; Costa, Iara Oliveira ; Jesus, Priscila Barreto de 等
期刊名称：Brazilian Journal of Oceanography
印刷版ISSN：1679-8759
电子版ISSN：1982-436X
出版年度：2013
卷号：61
期号：1
页码：65-71
DOI：10.1590/S1679-87592013000100007
出版社：Instituto Oceanográfico da Universidade de São Paulo
摘要：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.
关键词：Bahia;Biomassa;Carragenófita;Variação Sazonal;Alga
其他关键词：Bahia;Biomass;Carragenophyte;Seasonal Variation;Seaweed