Marine photosynthetic picoeukaryotes: community structure at different spatial scales

Marine photosynthetic picoeukaryotes: community structure at different spatial scales

Memoria de tesis doctoral presentada por Ana María Cabello Pérez para optar al grado de Doctora por la Universidad de las Palmas de Gran Canaria (ULPGC), realizada bajo la dirección del Dr. Mikel Latasa Arcalís del Centro Oceanográfico de Xixón (IEO) y del Dr. Ramon Massana Molera del Institut de Ciències del Mar (ICM-CSIC).-- 241 pages

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Main Author: Cabello, Ana María
Other Authors: Latasa, Mikel
Format: tesis doctoral biblioteca
Published: Universidad de Las Palmas de Gran Canaria 2016-02
Online Access:http://hdl.handle.net/10261/142009
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spelling dig-icm-es-10261-1420092022-05-30T12:31:45Z Marine photosynthetic picoeukaryotes: community structure at different spatial scales Picoeucariotas fotosintéticos marinos: estructura de la comunidad a diferentes escalas espaciales Cabello, Ana María Latasa, Mikel Massana, Ramon Memoria de tesis doctoral presentada por Ana María Cabello Pérez para optar al grado de Doctora por la Universidad de las Palmas de Gran Canaria (ULPGC), realizada bajo la dirección del Dr. Mikel Latasa Arcalís del Centro Oceanográfico de Xixón (IEO) y del Dr. Ramon Massana Molera del Institut de Ciències del Mar (ICM-CSIC).-- 241 pages Marine photosynthetic picoeukaryotes or PPEs, single-celled algae from 0.8 to 3 μm in size, are major contributors to phytoplankton biomass and primary production in marine systems and form diverse communities dominated by prymnesiophytes, chlorophytes, pelagophytes, and chrysophytes. Due to their ecological relevance it is important to characterize PPE community structure over temporal and spatial scales and to identify the environmental factors shaping community assembly. In this thesis we focused on major PPE groups, with the aim of determining their abundances and distribution at different spatial scales. We first characterized the fine vertical distribution of chlorophytes, pelagophytes and prymnesiophytes within the DCM (Deep Chlorophyll Maximum) developing during summer stratification in temperate areas. The distribution of these three groups, together with that of cyanobacteria, diatoms and dinoflagellates, revealed a vertical segregation of major phytoplankton groups within the DCM layer. The global ocean as sampled in the circumnavigation expeditions Malaspina and Tara-Oceans was our second scale of study, and under this context we studied the distribution patterns and abundance of a particular symbiosis between a prymnesiophyte algae and the unicellular N-fixing cyanobacteria UCYN-A, which resulted to be widespread in the global ocean. The same global approach, also including European coastal sites, provided a reliable picture of the distribution of the different pelagophyte genera and species, highlighting their low global diversity. Overall, this thesis offers new insights into the distribution patterns of different PPE taxa and provides the basis for further investigating their ecological traits Peer Reviewed 2017-01-03T11:44:41Z 2017-01-03T11:44:41Z 2016-02 2017-01-03T11:44:42Z tesis doctoral http://purl.org/coar/resource_type/c_db06 http://hdl.handle.net/10261/142009 Sí open Universidad de Las Palmas de Gran Canaria CSIC - Instituto de Ciencias del Mar (ICM)
institution ICM ES
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country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
description Memoria de tesis doctoral presentada por Ana María Cabello Pérez para optar al grado de Doctora por la Universidad de las Palmas de Gran Canaria (ULPGC), realizada bajo la dirección del Dr. Mikel Latasa Arcalís del Centro Oceanográfico de Xixón (IEO) y del Dr. Ramon Massana Molera del Institut de Ciències del Mar (ICM-CSIC).-- 241 pages
author2 Latasa, Mikel
author_facet Latasa, Mikel
Cabello, Ana María
format tesis doctoral
author Cabello, Ana María
spellingShingle Cabello, Ana María
Marine photosynthetic picoeukaryotes: community structure at different spatial scales
author_sort Cabello, Ana María
title Marine photosynthetic picoeukaryotes: community structure at different spatial scales
title_short Marine photosynthetic picoeukaryotes: community structure at different spatial scales
title_full Marine photosynthetic picoeukaryotes: community structure at different spatial scales
title_fullStr Marine photosynthetic picoeukaryotes: community structure at different spatial scales
title_full_unstemmed Marine photosynthetic picoeukaryotes: community structure at different spatial scales
title_sort marine photosynthetic picoeukaryotes: community structure at different spatial scales
publisher Universidad de Las Palmas de Gran Canaria
publishDate 2016-02
url http://hdl.handle.net/10261/142009
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