Volcanic ash in the water column: Cellular, physiological and anatomical implications for the gastropod suspension-feeder Crepipatella peruviana (Lamarck, 1822)

The influx of volcanic ash into seawater alters particle composition with implications for the cellular, physiological and anatomical response of suspension-feeding organisms. Adult females of Crepipatella peruviana were exposed to three diets consisting of a fixed concentration of 50,000 cells ml−1...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2024-10, Vol.365, p.143294, Article 143294
Main Authors: Büchner-Miranda, Joseline A., Jaramillo, Hans N., Ramírez-Kuschel, Eduardo F., Salas-Yanquin, Luis P., Pérez-Echeverría, Ignacio, Paredes-Molina, Francisco J., Sabja-Llanos, Elayne N., Cubillos, Victor M., Montory, Jaime A., Chaparro, Oscar R.
Format: Article
Language:English
Subjects:
Limpet
Oxidative damage
Physiological responses
Volcanic ash
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Summary:The influx of volcanic ash into seawater alters particle composition with implications for the cellular, physiological and anatomical response of suspension-feeding organisms. Adult females of Crepipatella peruviana were exposed to three diets consisting of a fixed concentration of 50,000 cells ml−1 of the microalga Isochrysis galbana plus different concentrations of ash particles (30, 90 and 150 mg L−1). The objective was to determine the cellular, physiological and anatomical responses. Mortality increased with ash concentrations, while feeding and respiration rates, tissue weight, and condition index decreased. The gills showed severe degradation of cilia and the presence of large mucous aggregates of cilia and ash. An increase in ash resulted in decreased lipid peroxidation and protein carbonyls, but increased total antioxidant capacity and phenols. Thus, volcanic ash particles may exert a high impact at both cellular and physiological levels for C. peruviana, where inhibition of gill function reduces the ability to acquire food. [Display omitted] •Volcanic ash entering water changes seston composition affecting suspension-feeders.•Ash in the sea water impact the physiological and cellular response.•Mortality increased with increasing ash concentrations in diet.•Volcanic activity can eliminate communities of water suspension-feeders.
ISSN:0045-6535
1879-1298
1879-1298
DOI:10.1016/j.chemosphere.2024.143294