Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador)
20 pages, 7 figures, 3 tables, supplemental material https://www.frontiersin.org/articles/10.3389/fmars.2019.00145/full#supplementary-material
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Frontiers Media
2019-03
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Subjects: | Nutrients, Humboldt current, Upwelling, Tropical Eastern Pacific, ENSO, HABs, Dinoflagellates, |
Online Access: | http://hdl.handle.net/10261/181707 http://dx.doi.org/10.13039/501100004299 |
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dig-icm-es-10261-1817072020-12-11T08:53:49Z Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) Torres, Gladys Carnicer, Olga Canepa, Antonio de la Fuente, P. Recalde, Sonia Narea, Richard Pinto, Edwin Borbor-Córdova, Mercy J. Secretaría de Educación Superior, Ciencia, Tecnología e Innovación (Ecuador) Escuela Superior Politecnica del Litoral (Ecuador) Instituto Oceanográfico de la Armada (Ecuador) Nutrients Humboldt current Upwelling Tropical Eastern Pacific ENSO HABs Dinoflagellates 20 pages, 7 figures, 3 tables, supplemental material https://www.frontiersin.org/articles/10.3389/fmars.2019.00145/full#supplementary-material Among marine phytoplankton, dinoflagellates are a key component in marine ecosystems as primary producers. Some species synthesize toxins, associated with human seafood poisoning, and mortality in marine organisms. Thus, there is a large necessity to understand the role of environmental variables in dinoflagellates spatial-temporal patterns in response to future climate scenarios. In that sense, a monthly four-year (2013–2017) monitoring was taken to evaluate dinoflagellates abundances and physical-chemical parameters in the water column at different depths. Sampling sites were established at 10 miles in four locations within the Ecuadorian coast. A total of 102 taxa were identified, corresponding to 8 orders, 22 families, and 31 genera. Eight potentially harmful genera were registered but no massive blooms were detected. The most frequent dinoflagellates were Gymnodinium sp. and Gyrodinium sp. Environmental variables showed different mixing layer thickness and a conspicuous and deepening thermocline/oxycline/halocline and nutricline depending on annual and seasonal oceanographic fluctuations. This study confirms that seasonal and spatial distribution of the environmental variables are linked to the main current systems on the Eastern Tropical Pacific, thus the warm Panama current lead to a less dinoflagellates abundance in the north of Ecuador (Esmeraldas), while the Equatorial Upwelling and the cold nutrient-rich Humboldt Current influence dinoflagellates abundance at the central (Manta, La Libertad) and South of Ecuador (Puerto Bolivar), respectively. Inter-annual variability of dinoflagellates abundance is associated with ENSO and upwelling conditions. Climate change scenarios predict an increase in water surface temperature and extreme events frequency in tropical areas, so it is crucial to involve policy-makers and stakeholders in the implementation of future laws involving long-term monitoring and sanitary programs, not covered at present This research has been developed as an international and inter-institutional collaboration among different research institutes and universities. We would like to acknowledge the following projects and institutional support: Project “Oceanic Early Warning System,” funded by National Secretary of Science and Technology (SENESCYT) and INOCAR, Project T2-DI-2014 “Climate Variability and Harmful Algae Bloom Interaction and their impact on human health on the coast of Ecuador,” funded by the Escuela Superior Politecnica del Litoral (ESPOL) Peer Reviewed 2019-05-20T09:03:03Z 2019-05-20T09:03:03Z 2019-03 2019-05-20T09:03:03Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3389/fmars.2019.00145 e-issn: 2296-7745 Frontiers in Marine Science 6: 145 (2019) http://hdl.handle.net/10261/181707 10.3389/fmars.2019.00145 http://dx.doi.org/10.13039/501100004299 Publisher's version https://doi.org/10.3389/fmars.2019.00145 Sí open Frontiers Media |
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Nutrients Humboldt current Upwelling Tropical Eastern Pacific ENSO HABs Dinoflagellates Nutrients Humboldt current Upwelling Tropical Eastern Pacific ENSO HABs Dinoflagellates |
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Nutrients Humboldt current Upwelling Tropical Eastern Pacific ENSO HABs Dinoflagellates Nutrients Humboldt current Upwelling Tropical Eastern Pacific ENSO HABs Dinoflagellates Torres, Gladys Carnicer, Olga Canepa, Antonio de la Fuente, P. Recalde, Sonia Narea, Richard Pinto, Edwin Borbor-Córdova, Mercy J. Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) |
description |
20 pages, 7 figures, 3 tables, supplemental material https://www.frontiersin.org/articles/10.3389/fmars.2019.00145/full#supplementary-material |
author2 |
Secretaría de Educación Superior, Ciencia, Tecnología e Innovación (Ecuador) |
author_facet |
Secretaría de Educación Superior, Ciencia, Tecnología e Innovación (Ecuador) Torres, Gladys Carnicer, Olga Canepa, Antonio de la Fuente, P. Recalde, Sonia Narea, Richard Pinto, Edwin Borbor-Córdova, Mercy J. |
format |
artículo |
topic_facet |
Nutrients Humboldt current Upwelling Tropical Eastern Pacific ENSO HABs Dinoflagellates |
author |
Torres, Gladys Carnicer, Olga Canepa, Antonio de la Fuente, P. Recalde, Sonia Narea, Richard Pinto, Edwin Borbor-Córdova, Mercy J. |
author_sort |
Torres, Gladys |
title |
Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) |
title_short |
Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) |
title_full |
Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) |
title_fullStr |
Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) |
title_full_unstemmed |
Spatio-Temporal Pattern of Dinoflagellates Along the Tropical Eastern Pacific Coast (Ecuador) |
title_sort |
spatio-temporal pattern of dinoflagellates along the tropical eastern pacific coast (ecuador) |
publisher |
Frontiers Media |
publishDate |
2019-03 |
url |
http://hdl.handle.net/10261/181707 http://dx.doi.org/10.13039/501100004299 |
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