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Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata

An emerging disturbance for Caribbean reefs is the massive arrival of pelagic Sargassum, which deteriorates water quality due to the production of leachates. The highest arrivals of Sargassum took place when broadcasting corals spawned. We experimentally determined the effect of Sargassum leachates...

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Autores principales: Antonio-Martínez, Francisco, Henaut, Yann, Vega-Zepeda, Alejandro, Cerón-Flores, Ana I., Raigoza-Figueras, Rodolfo, Cetz-Navarro, Neidy P., Espinoza-Avalos, Julio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7054338/
https://www.ncbi.nlm.nih.gov/pubmed/32127622
http://dx.doi.org/10.1038/s41598-020-60864-z
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author Antonio-Martínez, Francisco
Henaut, Yann
Vega-Zepeda, Alejandro
Cerón-Flores, Ana I.
Raigoza-Figueras, Rodolfo
Cetz-Navarro, Neidy P.
Espinoza-Avalos, Julio
author_facet Antonio-Martínez, Francisco
Henaut, Yann
Vega-Zepeda, Alejandro
Cerón-Flores, Ana I.
Raigoza-Figueras, Rodolfo
Cetz-Navarro, Neidy P.
Espinoza-Avalos, Julio
author_sort Antonio-Martínez, Francisco
collection PubMed
description An emerging disturbance for Caribbean reefs is the massive arrival of pelagic Sargassum, which deteriorates water quality due to the production of leachates. The highest arrivals of Sargassum took place when broadcasting corals spawned. We experimentally determined the effect of Sargassum leachates on swimming behavior of Acropora palmata larvae through five treatments (control, stain (simulating 100% leachate color), and 25%, 50% and 100% Sargassum leachate concentrations) during 30 min (10 min of videos and 20 min of post-observations). In the videos, larvae with leachates reduced swimming speed, were positively geotactic, the percentage of individuals that swam in a spiral pattern increased, and most behavioral displacements occurred at lower frequencies than larvae without leachates. Moreover, symptomatic spiral behavior was higher in the presence of leachates, suggesting that this behavior may be an effect of pollution. During post-observations, most larvae with leachates were motionless. This is the first time that Sargassum leachates have been documented modifying larval swimming behavior, which may reduce larval dispersion and genetic diversity. We suggest that a future evaluation of the effects of leachates at lower concentrations and over longer periods of exposure is needed. The resilience of corals may be compromised if Sargassum arrivals become frequent events.
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spelling pubmed-70543382020-03-11 Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata Antonio-Martínez, Francisco Henaut, Yann Vega-Zepeda, Alejandro Cerón-Flores, Ana I. Raigoza-Figueras, Rodolfo Cetz-Navarro, Neidy P. Espinoza-Avalos, Julio Sci Rep Article An emerging disturbance for Caribbean reefs is the massive arrival of pelagic Sargassum, which deteriorates water quality due to the production of leachates. The highest arrivals of Sargassum took place when broadcasting corals spawned. We experimentally determined the effect of Sargassum leachates on swimming behavior of Acropora palmata larvae through five treatments (control, stain (simulating 100% leachate color), and 25%, 50% and 100% Sargassum leachate concentrations) during 30 min (10 min of videos and 20 min of post-observations). In the videos, larvae with leachates reduced swimming speed, were positively geotactic, the percentage of individuals that swam in a spiral pattern increased, and most behavioral displacements occurred at lower frequencies than larvae without leachates. Moreover, symptomatic spiral behavior was higher in the presence of leachates, suggesting that this behavior may be an effect of pollution. During post-observations, most larvae with leachates were motionless. This is the first time that Sargassum leachates have been documented modifying larval swimming behavior, which may reduce larval dispersion and genetic diversity. We suggest that a future evaluation of the effects of leachates at lower concentrations and over longer periods of exposure is needed. The resilience of corals may be compromised if Sargassum arrivals become frequent events. Nature Publishing Group UK 2020-03-03 /pmc/articles/PMC7054338/ /pubmed/32127622 http://dx.doi.org/10.1038/s41598-020-60864-z Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Antonio-Martínez, Francisco
Henaut, Yann
Vega-Zepeda, Alejandro
Cerón-Flores, Ana I.
Raigoza-Figueras, Rodolfo
Cetz-Navarro, Neidy P.
Espinoza-Avalos, Julio
Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata
title Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata
title_full Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata
title_fullStr Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata
title_full_unstemmed Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata
title_short Leachate effects of pelagic Sargassum spp. on larval swimming behavior of the coral Acropora palmata
title_sort leachate effects of pelagic sargassum spp. on larval swimming behavior of the coral acropora palmata
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7054338/
https://www.ncbi.nlm.nih.gov/pubmed/32127622
http://dx.doi.org/10.1038/s41598-020-60864-z
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