Conchas marinas faltantes: un detalle sutil de una política inadecuada

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i14.21733

Palabras clave:

Limpieza de playas; Limpieza de tractores; Conquilología; Impacto ambiental; Fragmentación de conchas; Mareas.

Resumen

En Playa de Santos, en la costa suroeste de Brasil, las operaciones de limpieza se intensifican durante el verano a través de técnicas manuales y mecánicas, orientadas principalmente por aspectos sanitarios y estéticos que descuidan los estándares ecológicos básicos. Este estudio evaluó la abundancia, riqueza y diversidad de conchas muertas, como mareas vivas y mareas en cuadratura, encontradas en dos franjas de arena de la playa arenosa: el sector "húmedo" y el "húmedo", por donde solo pasa la primera. limpieza mecanica. Recolectamos y contamos todas las conchas rotas y enteras, identificamos cada una hasta el nivel de la especie y medimos su peso. Utilizamos modelos estadísticos mixtos para evaluar el efecto del sector sobre la abundancia (en peso y número), riqueza y diversidad de Shannon-Wiener (H '). En el sector húmedo se encontró una importante enfermedad crónica de las conchas fragmentadas. Por tratarse del sector de aplicación de la limpieza mecánica, entendemos que esta estrategia promueve impactos deletéreos en la estructura del caparazón de Praia de Santos, requiriendo medidas de mitigación para proteger los caparazones. Finalmente, calculamos que la basura desechada incorrectamente se trae del manglar relacionado a la playa después de las mareas de primavera; por ello, la gestión integral de la limpieza con la participación de la población local también es fundamental para reducir la limpieza mecánica y sus impactos.

Citas

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Publicado

28/10/2021

Cómo citar

BARROS, L. R. S. de; BARRELLA, W.; PETRERE JR., M.; BUTTURI-GOMES, D. Conchas marinas faltantes: un detalle sutil de una política inadecuada . Research, Society and Development, [S. l.], v. 10, n. 14, p. e130101421733, 2021. DOI: 10.33448/rsd-v10i14.21733. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/21733. Acesso em: 2 oct. 2024.

Número

Sección

Ciencias Agrarias y Biológicas