Observations of the conchological structure of Santos Beach (Brazil) during the summer of 2020

Barros, Laura Roberta Sarmento de; Barrella, Walter; Petrere, Miguel; Butturi-Gomes, Davi

doi:10.17632/rn7g2tt4vm.1

2020

DOI: 10.17632/rn7g2tt4vm.1

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Observations of the conchological structure of Santos Beach (Brazil) during the summer of 2020

Laura Roberta Sarmento de Barros¹,

Walter Barrella²,

Miguel Petrere³

et al.

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Missing seashells: a subtle detail of an inadequate policy

Barros

Barrella

Petrere

et al. 2021

RSD

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In Santos Beach, southwest coast of Brazil, cleaning operations are intensified during the summer using manual and mechanical techniques, driven mainly by sanitary and aesthetic aspects that neglect basic ecological standards. This study evaluated the abundance, richness, and diversity of dead shells, after spring and neap tides, found in two strips of sandy beaches: the "damp" and the "wet "sectors, where only the former undergoes mechanical cleaning. We collected and counted all fragmented and whole shells, identified each down to the species levels, and measured their weight. We used mixed statistical modeling to evaluate the effect of the sector over the abundance (in weight and number), richness, and Shannon-Wiener diversity (). We found a significantly greater abundance of fragmented shells in the damp sector. Since this is the sector where mechanical cleaning is applied, we understand such a strategy promotes potential harmful impacts over the conchological structure in Santos Beach, requiring mitigatory measures to protect empty shells. Finally, we fathom incorrectly discarded litter is brought from the surrounding mangrove to the beach after the spring tides; thus, integrated cleaning management with the participation of the local population, are also required to reduce the mechanical cleaning and its impacts.

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Missing seashells: a subtle detail of an inadequate policy

Barros

Barrella

Petrere

et al. 2021

RSD

View full text Add to dashboard Cite

show abstract

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Observations of the conchological structure of Santos Beach (Brazil) during the summer of 2020

Cited by 1 publication

References 0 publications

Missing seashells: a subtle detail of an inadequate policy

Missing seashells: a subtle detail of an inadequate policy

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