Data/hora: 12/06/2024 13:42:19

Provedor de dados: 	49	
País: 	Brazil	
Título: 	A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil	
Autores: 	Pinotti,Raphael Mathias; Minasi,Diogo Marroni; Colling,Leonir André; Bemvenuti,Carlos Emílio.	
Data: 	2014-01-01	
Ano: 	2014	
Palavras-chave: 	Exposed beach; Intermediate states; Primary production; Secondary consumers; Conservation.	
Resumo: 	Main trophic relationships that occur along the exposed sandy shores in southernmost Brazil (∼33° S) are established taking into account several biological compartments operating at morphodynamically distinct environments. Beaches are predominantly of the intermediate type but some stretches of coastline are truly dissipative (Cassino Beach) or tending-to-reflective (Concheiros Beach), presenting thus diverse biological compartments and inhabitant macrobenthic assemblages. Dense concentrations of the surf-zone diatom Asterionellopsis glacialis are responsible - at least for the intermediate shorelines - for the most year-round primary production, sustaining several consumers up to tertiary level. Among them, bivalves Amarilladesma mactroides, Donax hanleyanus and the hippid crabEmerita brasiliensis can account for more than 95% of all the surf-zone secondary production, in addition to the elevated biomass of the suspension-feeder polychaete Spio gaucha and the scavenger isopod Excirolana armata. Crabs, whelks, carnivorous polychaetes, seabirds and surf-zone fishes may also be present and occupy superior trophic levels depending on the beach morphodynamics. Based on the high species richness, abundance and the role of macrobenthic fauna in transferring matter and energy to seabirds and the surf-zone fish assemblages, we address this important issue on the Southwestern Atlantic ecology. Conservation efforts should be implemented for the southernmost Brazilian sandy shores, at least for those non urbanized areas.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300401	
Editor: 	Instituto Virtual da Biodiversidade | BIOTA - FAPESP	
Relação: 	10.1590/1676-06032014006914	
Formato: 	text/html	
Fonte: 	Biota Neotropica  v.14 n.3 2014	
Fonte: 	info:eu-repo/semantics/openAccess