Spatio-temporal variability of biological and environmental parameters in the presence of warm conditions in the Eastern Equatorial Pacific, Niño 1+2

Abstract

Event Abstract Back to Event Spatio-temporal variability of biological and environmental parameters in the presence of warm conditions in the Eastern Equatorial Pacific, Niño 1+2 Mariela González-Narváez1, 2*, Mª José Fernández-Gómez2, 3, SUSANA L. MENDES4 and Maria-Purificacion Galindo-Villardon2, 3 1 Escuela Superior Politecnica del Litoral (ESPOL), Faculty of Life Sciences, Ecuador 2 Universidad de Salamanca, Department of Statistics, Spain 3 Instituto de Investigación Biomédica de Salamanca, Spain 4 Centro de Ciências do Mar e do Ambiente (IPLeiria), MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Portugal The Eastern Equatorial Pacific zone is recognized for its high biological productivity. In particular, the period 2013, 2014 and 2015 was a warm event of great importance in the region. Thus, with this investigation it was intended to study the surface spatio-temporal behavior of phytoplankton abundance, and the variations in environmental parameters in one of the most recent warm events in the Eastern Equatorial Pacific area. Therefore, data from four sampling sites, namely Esmeraldas, Manta, La Libertad and Puerto Bolívar (located on the coastal border of Continental Ecuador contained in the region Niño 1 + 2, which is a sensitive area to receive variations in sea surface temperature), in the period from 2013 to 2015 were analyzed. Thus, a comparison between statistical techniques, namely HJ-Biplot (Galindo, 1986) and Partial Tridiac Analysis (PTA) PTA (Jaffrenou, 1978) were performed in order to analyze the relationship between phytoplankton abundance and environmental parameters. The results from the comparison of the techniques PTA and HJ-Biplot demonstrated the relationship between the sampling sites and the variables (phytoplankton abundance and environmental parameters) in a two-dimensional space. However, it was observed that with the PTA the biological and environmental changes that occurred during 2015 are captured and manifested more clearly, being more evident the changes in the biological pattern. In addition, PTA clearly presented an important differentiation between the abundance of the species in a year of normal conditions such as 2013 and a year of considerable warm conditions as the 2015. Acknowledgements PhD Susana Mendes had financial support of Fundação para a Ciência e Tecnologia (FCT) through the strategic project UID/MAR/04292/2013 granted to MARE. Keywords: Phytoplankton, Niño 1+2, Warm conditions, compromise of data tables, Interstructure, Partial triadic analysis, HJ-Biplot Conference: IMMR'18 | International Meeting on Marine Research 2018, Peniche, Portugal, 5 Jul - 6 Jul, 2018. Presentation Type: Poster Presentation Topic: Biodiversity, Conservation and Coastal Management Citation: González-Narváez M, Fernández-Gómez M, MENDES SL and Galindo-Villardon M (2019). Spatio-temporal variability of biological and environmental parameters in the presence of warm conditions in the Eastern Equatorial Pacific, Niño 1+2. Front. Mar. Sci. Conference Abstract: IMMR'18 | International Meeting on Marine Research 2018. doi: 10.3389/conf.FMARS.2018.06.00112 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 05 May 2018; Published Online: 07 Jan 2019. * Correspondence: Mrs. Mariela González-Narváez, Escuela Superior Politecnica del Litoral (ESPOL), Faculty of Life Sciences, Guayaquil, Guayaquil, 09-01-5863, Ecuador, margonzal@espol.edu.ec Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Mariela González-Narváez Mª José Fernández-Gómez SUSANA L MENDES Maria-Purificacion Galindo-Villardon Google Mariela González-Narváez Mª José Fernández-Gómez SUSANA L MENDES Maria-Purificacion Galindo-Villardon Google Scholar Mariela González-Narváez Mª José Fernández-Gómez SUSANA L MENDES Maria-Purificacion Galindo-Villardon PubMed Mariela González-Narváez Mª José Fernández-Gómez SUSANA L MENDES Maria-Purificacion Galindo-Villardon Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.