Universidad Peruana Cayetano Heredia

Abundance and distribution of potentially toxic phytoplankton in aquaculture sites along the Peruvian coast

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dc.contributor.author Cuellar-Martinez, Tomasa
dc.contributor.author del Rocío Huanca Ochoa, Aurora
dc.contributor.author Sánchez, Sonia
dc.contributor.author Aguirre-Velarde, Arturo
dc.contributor.author Martínez Ocas, Elmer Omar
dc.contributor.author Rodriguez Velasquez, Angélica María
dc.contributor.author Saavedra Querevalú, Rosa Isabel
dc.contributor.author Colas, François
dc.contributor.author Tam Málaga, Jorge Larry
dc.contributor.author Gutierrez Aguilar, Dimitri Alexey
dc.coverage.spatial Bahía de Sechura, Piura, Perú
dc.coverage.spatial Bahía de Nonura, Piura, Perú
dc.coverage.spatial Bahía de Samanco, Ancash, Perú
dc.coverage.spatial Playa Salínas, Ancash, Perú
dc.coverage.spatial Bahía de Guaynuná, Ancash, Perú
dc.coverage.spatial Caleta de Tortugas, Ancash, Perú
dc.coverage.spatial Tamborero, Ancash, Perú
dc.coverage.spatial Ancón, Lima, Perú
dc.coverage.spatial Callao, Callao, Perú
dc.coverage.spatial Pucusana, Lima, Perú
dc.coverage.spatial Paracas, Ica, Perú
dc.coverage.spatial Bahia de Lagunillas, Ica, Perú
dc.coverage.spatial Independencia, Ica, Perú
dc.coverage.spatial San Juan de Marcona, Ica, Perú
dc.coverage.spatial Atico, Arequipa, Perú
dc.coverage.spatial Matarani, Arequipa, Perú
dc.coverage.spatial Quilca, Arequipa, Perú
dc.coverage.spatial Ilo, Moquegua, Perú
dc.coverage.spatial Tacna, Tacna, Perú
dc.date.accessioned 2023-04-16T04:38:11Z
dc.date.available 2023-04-16T04:38:11Z
dc.date.issued 2023
dc.identifier.uri https://hdl.handle.net/20.500.12866/13351
dc.description.abstract The presence of harmful microalgae in aquaculture sites represents a risk for production and human health, so surveillance of these species is relevant for early warning of harmful algal blooms. Here we examine the monitoring results of potentially toxic phytoplankton in Peruvian coastal sites associated with the cultivation of Argopecten purpuratus and natural banks of other mollusks. We evaluated the density, frequency, temporal and spatial distribution of these species, as well as blooms occurred from 2011 to 2019. Results showed that the most abundant species was Heterosigma akashiwo, and the most frequent ones were Pseudo-nitzschia delicatisima and seriata complexes. The majority of blooms were caused by H. akashiwo (21 events) and Dinophysis acuminata (19 events). Canonical correspondence analysis revealed the preference of dinoflagellates to warmer sea surface temperatures and more stable conditions (indicated by low wind velocities) than Pseudo-nitzschia species. Generalized additive models (GAMs) indicated that wind velocities > 3.7 m s−1 and El Niño conditions favor Pseudo-nitzschia species while warm temperatures (> 20 °C), weaker winds (< 3.7 m s−1), and cold periods associated with La Niña promoted higher densities of D. acuminata complex. A recent increasing trend in the density of D. acuminata was observed. This information is useful to understand the dynamics of potentially toxic species in upwelling regions. en_US
dc.description.sponsorship Este trabajo fue financiado por el Proyecto Concytec - Banco Mundial “Caracterización y pronóstico de eventos extremos en el mar peruano mediante un sistema operativo de información oceánica” (05-2019-FONDECYT-BM), a través de su unidad ejecutora Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica (Fondecyt). es_PE
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartofseries Journal of Marine Systems
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject toxic phytoplankton en_US
dc.subject aquaculture en_US
dc.subject Peruvian coast en_US
dc.title Abundance and distribution of potentially toxic phytoplankton in aquaculture sites along the Peruvian coast en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1016/j.jmarsys.2023.103865
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.05.11
dc.relation.issn 0924-7963


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