2008
DOI: 10.1590/s1679-87592008000400001
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Temporal variation of sandy beach macrofauna at two sites with distinct environmental conditions on Cassino Beach, extreme southern Brazil

Abstract: Temporal variations of the macrofauna of sandy beaches have been related to variations in the beach morphodynamics and also to the population dynamics of dominant species. The aim of this article is to describe the temporal variation of the intertidal macrofauna at two sites with distinct environmental condition on Cassino Beach, extreme southern Brazil. At each site three transect lines 50 m apart were defined perpendicular to the shore line, from which samples were collected monthly in triplicate at 4 intert… Show more

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Cited by 18 publications
(8 citation statements)
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“…Thus, several spatial community patterns and their drivers are still to be fully understood. Regarding temporal variation, seasonal trends have been recorded in macrofaunal assemblages living in intertidal softbottom systems (Leber 1982, Degraer et al 1999 Silva et al 2008). Yet those studies have been mostly species-specific or used low-frequency sampling designs (ca.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, several spatial community patterns and their drivers are still to be fully understood. Regarding temporal variation, seasonal trends have been recorded in macrofaunal assemblages living in intertidal softbottom systems (Leber 1982, Degraer et al 1999 Silva et al 2008). Yet those studies have been mostly species-specific or used low-frequency sampling designs (ca.…”
Section: Introductionmentioning
confidence: 99%
“…pess.). Neste local a praia apresenta menor diversidade e abundância de organismos em comparação com a registrada no presente trabalho (siLva et al, 2008). Devese considerar ainda que essa área sofre maior influência dos molhes da Barra de Rio Grande e encontra-se submetida a periódicos aportes de lama (caLLiari et al, 2001), os quais também afetam o macrozoobentos (siLva et al, 2008).…”
Section: Discussionunclassified
“…MUEHE (2003) emphasizes that in Rio Grande do Sul, waves rarely exceed 2 m; however, during the passage of cold fronts, the waterline can reach the base of the dunes (approximately 1.7 m above the mean level) and may significantly increase their erosive potential (CALLIARI et al, 1998). In addition to changes in topographic profiles, extreme events can also cause massive mortality of biota, mainly due to embankments (entrapment of organisms in the swash zone in the upper beach zones) (DEFEO; CARDOSO, 2002;SILVA et al, 2008).…”
Section: Impactsmentioning
confidence: 99%