Patterns of spatial and temporal distribution of the macrobenthic fauna on an estuarine macrotidal sandy beach on the Amazon coast (Brazil)

Santos, Thuareag Monteiro Trindade dos; Almeida, Marcos Danilo Costa de; Aviz, Daiane; Filho, José Souto Rosa

doi:10.1111/maec.12675

Cited by 7 publications

(12 citation statements)

References 63 publications

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“…In addition, the polychaetes T . papillata , N. simoni and S. squamata , typical of Amazonian sandy beaches, also occurred in this area (Rosa Filho et al, 2009, 2011; Santos et al, 2021, 2022; Santos & Aviz, 2018, 2020).…”

Section: Discussionmentioning

confidence: 90%

“…In fact, the high moisture levels in the runnels can sometimes occur on the sandbars (Vanhée et al, 2002). The macrobenthos vertical zonation has been reported in Amazonian macrotidal sandy beaches, with two to three faunal zones being identified (Rosa Filho et al, 2009, 2011; Santos et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…and Cyprideis sp., which had high abundance in area 1, are also deposit feeders with higher affinity to muddy sediments (Angonesi, 2005;Dean, 2001;Lana, 1986;. In addition, the polychaetes T. papillata, N. simoni and S. squamata, typical of Amazonian sandy beaches, also occurred in this area (Rosa Filho et al, 2009Santos et al, 2021Santos et al, , 2022Santos & Aviz, 2018.…”

Section: Discussionmentioning

confidence: 99%

“…Increase in food resources (organic matter) favours the colonization by organisms, mainly detritivores, which often exhibit opportunistic behaviour (Angonesi, 2005). On the other hand, in the area without channels, richness and density increased towards the low tide line, reflecting the physical gradients on the beach (Armonies & Reise, 2000; McLachlan, 1980; McLachlan & Jaramillo, 1995; Santos et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

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Effects of the ridge‐and‐runnel system on macrofaunal spatial distribution on a macrotidal sandy beach in the Brazilian Amazon coast

et al. 2023

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Ridge‐and‐runnel systems are common morphological features across the intertidal zone of dissipative macrotidal beaches. However, these systems have often been overlooked by macrofaunal zonation studies. The present study investigated the effects of this system on the spatial distribution of the macrofaunal community on an Amazonian macrotidal sandy beach. Samples (macrobenthos and sediments) were collected at seven equidistant levels (50 m apart) from the high tide water mark to the swash zone, in two different areas: (1) with and (2) without ridge‐and‐runnel systems. The results showed a significant increase in macrofaunal abundance and richness in area with runnels, associated with muddier sediment and higher organic content. The macrofauna in the runnels, both in upper‐intertidal and lower‐intertidal zones, had higher density and richness than that in the sandbars. There was no difference between tidal levels in area 2, although we observed an increasing tendency of abundance and richness towards the low tide line. Taxonomic composition and trophic groups also differed between areas, with predominance of species that are typical of sandy‐mud substrate and higher participation of nonselective deposit feeders in area 1. Predatory species typical of sandy substrates prevailed in area 2. These findings add knowledge to sandy beach ecology and indicate the importance of including aspects of habitat complexity in both across‐ and alongshore macrofaunal distribution studies.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effects of the ridge‐and‐runnel system on macrofaunal spatial distribution on a macrotidal sandy beach in the Brazilian Amazon coast

et al. 2023

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“…The macrobenthic fauna of the present study was dominated by polychaetes. The dominance of polychaetes is a general pattern in intertidal habitats of the Amazonian coast (Rosa Filho et al ., 2006, 2009, 2011; Beasley et al ., 2010; Braga et al ., 2011, 2013; Morais & Lee, 2013; Santos & Aviz, 2018, 2020, 2021; Santos et al ., 2020, 2021 b , 2021). Thus, the impact of recreational activities in this study was mainly evidenced by changes in density and taxonomic composition of Polychaeta assemblages.…”

Section: Discussionmentioning

confidence: 99%

Effects of vehicle traffic and trampling on the macrobenthic community of Amazonian macrotidal sandy beaches

2022

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We report for the first time the effects of vehicle traffic and beachgoer trampling on macrobenthic communities of Amazonian sandy beaches. Sampling was performed during four consecutive months with different beach use intensity in 2017 (before, during vacation, and two months after the vacation period) on three contrasting beaches with regard to disturbance (Urban: Atalaia; Intermediate: Farol-Velho; and Protected: Corvinas) in the intertidal zone along two equidistant transects at seven equidistant sampling stations from the high-tide water mark to the swash zone. At each sampling station, four biological and sediment samples were randomly collected. Also, in each station, the sediment compaction was determined using a manual penetrometer. Physical sediment variables remained constant over time in all beaches, whereas differences were found in sediment compaction over the months. Macrobenthic community differences in density and richness among months were observed at Atalaia and Farol-Velho beaches. In contrast, Corvinas beach remained constant throughout the study period. Furthermore, the vulnerability of the polychaetes Thoracophellia papillata, Scolelepis squamata and Paraonis sp. indicates that they might be potential indicators of recreational activity impact.

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Short-term changes in the spatial distribution of the ghost shrimp Callichirus corruptus (Decapoda: Axiidea, Callichiridae) from southwestern Atlantic

Constantino,

de Aquino Ferreira,

Zalmon

et al. 2023

Mar Biol

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Patterns of spatial and temporal distribution of the macrobenthic fauna on an estuarine macrotidal sandy beach on the Amazon coast (Brazil)

Abstract: The macrobenthos is the most well-studied component of the biota on most sandy beaches and comprises diverse forms of

Cited by 7 publications

References 63 publications

Effects of the ridge‐and‐runnel system on macrofaunal spatial distribution on a macrotidal sandy beach in the Brazilian Amazon coast

Effects of the ridge‐and‐runnel system on macrofaunal spatial distribution on a macrotidal sandy beach in the Brazilian Amazon coast

Effects of vehicle traffic and trampling on the macrobenthic community of Amazonian macrotidal sandy beaches

Short-term changes in the spatial distribution of the ghost shrimp Callichirus corruptus (Decapoda: Axiidea, Callichiridae) from southwestern Atlantic

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