PINOTTI, R.M., MINASI, D.M., COLLING, L.A., BEMVENUTI, C.E. A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil.http://dx.doi.org/10.1590/1676-06032014006914Abstract: Main trophic relationships that occur along the exposed sandy shores in southernmost Brazil (,336 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 crab Emerita 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. Keywords: exposed beach, intermediate states, primary production, secondary consumers, conservation.PINOTTI, R.M., MINASI, D.M., COLLING, L.A., BEMVENUTI, C.E. Revisão sobre as relações tróficas macrozoobentônicas ao longo da costa arenosa subtropical do extremo sul do Brasil. Biota http://dx.doi.org/10.1590/1676-06032014006914Resumo: As principais relaçõ es tró ficas observadas ao longo da costa arenosa exposta do extremo sul do Brasil (,336 S) sã o estabelecidas levando-se em consideraçã o os vá rios compartimentos bioló gicos que operam em ambientes morfodinamicamente distintos. Estas praias sã o predominantemente do tipo intermediá rio, embora alguns trechos sejam dissipativos (Praia do Cassino) ou apresentem tendências reflectivas (Praia dos Concheiros), possuindo compartimentos bioló gicos diversificados e associaçõ es macrobentô nicas residentes. Densas concentraçõ es da diatomá cea Asterionellopsis glacialis sã o responsá veis -pelo menos para as praias intermediá rias -por grande parte da produtividade primá ria anual, sustentando vá rios consumidores até o nível terciá rio. Entre estes, os bivalves Amarilladesma mactroides, Donax hanleyanus e o crustá ceo Emerita brasiliensis sã o responsá veis por mais de 95% de toda a produçã o secundá ria da zona de surfe, em adição à elevada biomas...