Data/hora: 11/06/2024 12:04:47

Provedor de dados: 	Revista Brasileira de Zoologia	
País: 	Brazil	
Título: 	Seasonal variation of epiphytic hydroids (Cnidaria: Hydrozoa) associated to a subtropical Sargassum cymosum (Phaeophyta: Fucales) bed	
Autores: 	Cunha,Amanda Ferreira; Jacobucci,Giuliano Buzá.	
Data: 	2010-01-01	
Ano: 	2010	
Palavras-chave: 	Epibionts; Hydroid cover; Hydrozoans.	
Resumo: 	Hydroids are broadly reported in epiphytic associations from different localities showing marked seasonal cycles. Studies have shown that the factors behind these seasonal differences in hydroid richness and abundance may vary significantly according to the area of study. Seasonal differences in epiphytic hydroid cover and richness were evaluated in a Sargassum cymosum C. Agardh bed from Lázaro beach, at Ubatuba, Brazil. Significant seasonal differences were found in total hydroid cover, but not in species richness. Hydroid cover increased from March (early fall) to February (summer). Most of this pattern was caused by two of the most abundant species: Aglaophenia latecarinata Allman, 1877 and Orthopyxis sargassicola (Nutting, 1915). Hydroid richness seems to be related to S. cymosum size but not directly to its biomass. The seasonal differences in hydroid richness and algal cover are shown to be similar to other works in the study region and in the Mediterranean. Seasonal recruitment of hydroid species larvae may be responsible for their seasonal differences in algal cover, although other factors such as grazing activity of gammarid amphipods on S. cymosum must be taken into account.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600016	
Editor: 	Sociedade Brasileira de Zoologia	
Relação: 	10.1590/S1984-46702010000600016	
Formato: 	text/html	
Fonte: 	Zoologia (Curitiba)  v.27 n.6 2010	
Fonte: 	info:eu-repo/semantics/openAccess