Submarine outfall effect on subtidal macrobenthic communities in a southwestern Atlantic coastal city.

Autor: Cuello GV; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC1260, 7600, Mar del Plata, Argentina., Saracho Bottero MA; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC1260, 7600, Mar del Plata, Argentina., Llanos EN; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC1260, 7600, Mar del Plata, Argentina., Garaffo GV; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC1260, 7600, Mar del Plata, Argentina., Hines E; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC1260, 7600, Mar del Plata, Argentina., Elías R; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina., Jaubet ML; Instituto de Investigaciones Marinas y Costeras, (IIMyC), Facultad de Ciencias, Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CC1260, 7600, Mar del Plata, Argentina.
Jazyk: angličtina
Zdroj: Heliyon [Heliyon] 2023 Jul 13; Vol. 9 (7), pp. e18258. Date of Electronic Publication: 2023 Jul 13 (Print Publication: 2023).
DOI: 10.1016/j.heliyon.2023.e18258
Abstrakt: Submarine outfalls are an effective alternative for the final discharge of wastewater. The aim was to evaluate the subtidal macrobenthic community's responses and the changes in bottom sedimentary dynamics due to submarine outfall (SO) location. Sampling stages were: before SO (B SO ), after SO (A SO ) and after treatment plant (A EDAR ). Sampling sites were determined at different distances from the coastline (coastal, oceanic, and reference) on both sides of the pipe (North and South). Species shifts (from tolerant to sensitive) were observed along with a decrease in organic matter in the A EDAR Stage. There were changes in the sedimentary dynamic with sediment accumulation on the South side of the SO (finest sediments) and erosion on the North side (coarsest sediments) in the A SO and A EDAR Stages. Species turnover was higher than nesting in all stages. Functional trait analysis allowed the identification of temporal variations in benthic communities. The body size, development mode, feeding mode, habit, adult mobility and tolerance to pollution were useful functional traits to detect changes through Stages (B SO , A SO , and A EDAR ). Biotic indices classified the sites as slightly disturbed, indicating a slight improvement in the A EDAR Stage.
Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(© 2023 Published by Elsevier Ltd.)
Databáze: MEDLINE
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