Coastal pollution from the industrial park Quintero bay of central Chile: Effects on abundance, morphology, and development of the kelp Lessonia spicata (Phaeophyceae)

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dc.contributor.authorOyarzo-Miranda, Carolina
dc.contributor.authorLatorre, Nicolás
dc.contributor.authorMeynard, Andrés
dc.contributor.authorRivas, Jorge
dc.contributor.authorBulboa, Cristian
dc.contributor.authorContreras-Porcia, Loretto
dc.date.accessioned2024-04-15T20:27:43Z
dc.date.available2024-04-15T20:27:43Z
dc.date.issued2020-10
dc.descriptionINDEXACIÓN: SCOPUS.
dc.description.abstractThe industrial park of Quintero Bay (QB) in the central coast of Chile was established in the 1960s, presents high levels of pollution due to the industrial activity, and it is known as one of the five Chilean “sacrifice zones”. Lessonia spicata is the most important habitat-forming kelp species in the intertidal along the central and south shores of Chile, and currently there are no morphometric and population studies of L. spicata (or other seaweed species) nor studies about the effects of pollution on its development in QB and neighbouring sites. In this context, the aims of this study were (i) to register the abundance and morphological features of L. spicata populations from Ventanas, Horcón and Cachagua (sites with different pollution histories and located only up to 40 km from the QB); ii) to determine the heavy metals (HMs) concentration in seawater and marine sediments; and (iii) to evaluate in vitro the effects of exposure to seawater from the three sampling sites on spore release and early developmental stages, up to the juvenile sporophyte. Results showed that the chronically exposed Ventanas kelp population had the smallest adult individuals in comparison with the other sites. Ventanas and Horcón registered high HMs concentration in the seawater and marine sediments exceeding the international permissible limits (e.g in seawater Cu 20–859 μg L-1; sediments Cu > 50,000 μg kg-1). Unexpectedly in Cachagua, a site often considered unpolluted, high concentrations of Cu and As were also registered in the seawater (859 and 1,484 μg L-1, respectively) and of As in marine sediments (20,895 μg kg-1). Exposure of gametophytes to the seawater from Ventanas resulted in a developmental delay compared to the other treatments; however, low sporophyte production was determined in all treatments. Our results indicate that QB, more notably Ventanas, induce highly negative effects on individual development, and consequently on seaweed populations, which suggest a long-term negative impact on the community structure of these marine zones. Furthermore, the high concentrations of HMs reported here at Cachagua suggest a recent expansion of pollution along the central coast of Chile, evidencing effects on the marine ecosystem health even on sites far from the pollution source. Copyright: © 2020 Oyarzo-Miranda et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.identifier.citationPLoS ONE, Volume 15, Issue 10 October, October 2020, Article number e0240581
dc.identifier.doi10.1371/journal.pone.0240581
dc.identifier.issn1932-6203
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/55990
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.licenseCC BY 4.0 DEED Atribución 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectBays
dc.subjectChile
dc.subjectEnvironmental Monitoring
dc.subjectKelp
dc.subjectManufacturing and Industrial Facilities
dc.titleCoastal pollution from the industrial park Quintero bay of central Chile: Effects on abundance, morphology, and development of the kelp Lessonia spicata (Phaeophyceae)
dc.typeArtículo
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