Effects of plant cover on the macrofauna of Spartina marshes in northern Brazil

Braga, Cesar França; Beasley, Colin Robert; Isaac, Victória J.

doi:10.1590/s1516-89132009000600013

Cited by 18 publications

(7 citation statements)

References 22 publications

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“…Similarly, there is no reliable inventory of macroinfauna associated with Brazilian coastal saltmarshes. The number of taxa of benthic macrofauna recorded from Brazilian saltmarshes varies between 29 (Lana and Guiss 1991) and 32 (Lana and Guiss 1992) in the south, 47 (Netto and Lana 1999) and 52 (Netto and Lana 1997) in the southeast, and 46 (Braga et al 2009) and 51 (this paper) in the north. Saltmarsh faunas have low diversity (Adam 1990) but are very similar among different geographic locations due to ecological equivalence (Nybakken and Bertness 2005).…”

Section: Discussionmentioning

confidence: 77%

“…Furthermore, there is no consistent data in the literature correlating saltmarsh size with the structure of the benthic assemblage (Adam 1990). At Canela, however, macroinfaunal density increases with saltmarsh area, although taxonomic composition is independent of salt marsh size (Braga et al 2009). …”

Section: Discussionmentioning

confidence: 99%

“…The only study of saltmarsh macrobenthos in the region (Braga et al 2009) investigated a single and rather atypical locality, an island off the Pará coast. The objective of the present study is to describe the composition and abundance of the benthic macroinfauna associated with saltmarshes in a wider range of locations along the Pará coast and thus contribute to a better understanding of tropical saltmarsh macroinfaunal diversity.…”

Section: Introductionmentioning

confidence: 99%

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Benthic macroinfaunal assemblages associated with Amazonian saltmarshes

Braga

Monteiro

Filho

et al. 2011

Wetlands Ecol Manage

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The composition and abundance of the poorly known benthic macroinfauna associated with northern Brazilian saltmarshes, were described from eight sites (between 0°42 0 2.5 00 S, 47°52 0 44.1 00 W and 0°50 0 17.3 00 S, 46°36 0 13.3 00 W) along the Pará coast, Brazil. Sampling was carried out in November of 2007. Univariate and multivariate analyses were used to test for differences in sediment, vegetation and macroinfaunal variables among sites. No vertical zonation of the macroinfauna was detected. Macroinfaunal structure differed greatly among sites with different sediment and vegetation characteristics. Number of individuals and taxa were low in sites with sandy sediments and short, sparse vegetation and high in those with silty sediments with high organic matter and water contents, and tall, dense vegetation. Increasing number of individuals and taxa were associated with a geographical gradient in pore water salinity, which increases from west to east, coinciding with patterns of rainfall described for the Pará coast.

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Section: Discussionmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Benthic macroinfaunal assemblages associated with Amazonian saltmarshes

Braga

Monteiro

Filho

et al. 2011

Wetlands Ecol Manage

Self Cite

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“…Souza, & Souza Filho, 2011); and higher during the Mobile and sessile epifauna Boulder fields Kuklinski, D.K.A. Barnes, & Taylor, 2006 transition between rainy and dry season on saltmarshes of Canela Island, off the Caeté River Estuary (Braga, Beasley, & Isaac, 2009). These differences may be associated to larval supply, recruitment and settlement processes (López & Coutinho, 2008;Schiel, 2004) which are largely influenced by different features of each habitat (e.g.…”

Section: Discussionmentioning

confidence: 99%

Macrofauna bentónica intermareal de los fragmentos rocosos raros en la región Amazónica

Morais

Lee

2014

RBT

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Rock fragment fields are important habitat for biodiversity maintenance in coastal regions, particularly when located in protected areas dominated by soft sediments. Researches in this habitat have received surprisingly little attention on the Amazon Coast, despite rock fragments provide refuges, nursery grounds and food sources for a variety of benthic species. The present survey describes the mobile macroinvertebrate species composition and richness of the intertidal rocky fragments in Areuá Island within the "Mãe Grande de Curuçá" Marine Extractive Reserve (RESEX) on the Brazilian Amazon Coast. Samples were collected during the dry (August and November 2009) and rainy seasons (March and May 2010) on the upper and lower intertidal zone, using a 625cm² quadrat. At each season and intertidal zone, macroinvertebrate samples were collected along four transects (20m each) parallel to the waterline, and within each transect two quadrats were randomly sampled. Macroinvertebrates were identified, density determined, and biomass values obtained to characterize benthic diversity from the rocky fragments. The Jackknife procedure was used to estimate species richness from different intertidal zones during the dry and rainy seasons. Macrofaunal community comprised 85 taxa, with 17 "unique" taxa, 40 taxa were common to both intertidal zones and seasons, and 23 taxa have been recorded for the first time on the Brazilian Amazon Coast. Species richness was estimated at 106±9.7 taxa and results suggest that sampling effort was representative. Polychaeta was the most dominant in species number, followed by Malacostraca and Gastropoda. Regarding frequency of occurrence, Crustacean species Dynamenella tropica, Parhyale sp. and Petrolisthes armatus were the most frequent representing >75% of frequency of occurrence and 39 taxa were least frequent representing <5% of frequency of occurrence. Occurrence of crustaceans and polychaetes were particularly noteworthy in all intertidal zones and seasons, represented by 15 and 13 taxa, respectively. The most representative class in abundance and biomass was Malacostraca that represented more than half of all individuals sampled, and was dominated by Petrolisthes armatus. The latter was one of the most frequent, numerous and higher biomass species in the samples. In general, results indicated greater richness and biomass in the lower zone. Additionally, richness and density increase during the rainy season. Rock fragment fields in Areuá Island are rich in microhabitats and include a diverse array of species in a limited area. Our results underline the importance of rock fragment fields in Areuá Island for the maintenance of biodiversity in

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“…Community structure of invertebrates has been correlated to increased plant cover/structural complexity in other marsh ecosystems (Batzer 2013;Braga et al 2009;DeSzalay and Resh 2000;MacKenzie 2005;Sueiro et al 2012). The S. patens vegetation that dominated our high marsh zones likely provided above-and belowground tertiary structure that could have influenced fringing marsh infaunal invertebrate community structure.…”

Section: Influence Of Marsh Zonation On Invertebrate Community Structurementioning

confidence: 99%

Community Structure and Abundance of Benthic Infaunal Invertebrates in Maine Fringing Marsh Ecosystems

MacKenzie

Dionne

Miller

et al. 2015

Estuaries and Coasts

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Fringing marshes are abundant ecosystems that dominate the New England coastline. Despite their abundance, very little baseline data is available from them and few studies have documented the ecosystems services that they provide. This information is important for conservation efforts as well as for an increased understanding of how fringing marshes function compared to larger marsh meadow systems. Benthic infaunal invertebrates were sampled from cores collected from Spartina alterniflora-dominated low marsh, Spartina patens-dominated high marsh, and Phragmites australis-invaded high marsh zones of nine fringing marsh ecosystems in Casco Bay, Maine, USA. Infaunal densities and biomass were generally higher in low marsh than high marsh or P. australis cores. Invertebrate community structure was significantly different between low marsh and high marsh and P. australis cores, which was attributed to significantly higher pore water salinity, lower organic matter, total plant percent cover, and S. patens cover in low marsh zones. There were no differences in invertebrate densities, biomass, or community structure when high marsh and P. australis cores were compared. Invertebrate densities and community structure were dominated by oligochaetes in all zones. Oligochaetes were also an important component of infaunal biomass, but the less abundant and larger invertebrates such as green crabs, tanaids, and bivalves were also large contributors to biomass in the low marsh zone. Low marsh invertebrate communities were characterized by significantly higher densities of nematodes, Nereis virens, an unidentified oligochaete, the bivalves Gemma gemma and Mya arenaria, and Leptochelia rapax. High marsh invertebrate communities were characterized by higher densities of insects, specifically Culicoides sp. ceratopogonid larvae and Anurida maritima, as well as an unidentified species of mite. Our results revealed a diverse and abundant infaunal invertebrate community that likely supports similar ecosystem services in fringing marshes as invertebrates in larger marsh meadows.

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Effects of plant cover on the macrofauna of Spartina marshes in northern Brazil

Abstract: Data on macrofauna density and diversity, and the height and density of

Cited by 18 publications

References 22 publications

Benthic macroinfaunal assemblages associated with Amazonian saltmarshes

Benthic macroinfaunal assemblages associated with Amazonian saltmarshes

Macrofauna bentónica intermareal de los fragmentos rocosos raros en la región Amazónica

Community Structure and Abundance of Benthic Infaunal Invertebrates in Maine Fringing Marsh Ecosystems

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