A5059788227- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
- Marine Bivalve and Aquaculture Studies
- Ocean Acidification Effects and Responses
- Marine and fisheries research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Methane Hydrates and Related Phenomena
- Polyamine Metabolism and Applications
- Environmental DNA in Biodiversity Studies
- Bacteriophages and microbial interactions
- Melamine detection and toxicity
Instituto Español de Oceanografía
2020-2025
Centro Oceanográfico de A Coruña
2021-2025
Universidad de Las Palmas de Gran Canaria
2016
Universidade de Vigo
2012-2015
Abstract Phytoplankton size structure is key for the ecology and biogeochemistry of pelagic ecosystems, but relationship between cell maximum growth rate (μ max ) not yet well understood. We used cultures 22 species marine phytoplankton from five phyla, ranging 0.1 to 10 6 μm 3 in volume (V ), determine experimentally dependence growth, metabolic rate, elemental stoichiometry nutrient uptake. show that both μ carbon‐specific photosynthesis peak at intermediate sizes. Maximum nitrogen uptake...
The universal temperature dependence of metabolic rates has been used to predict how ocean biology will respond warming. Determining the sensitivity phytoplankton metabolism and growth is special importance because this group organisms responsible for nearly half global primary production, sustains most marine food webs, contributes regulate exchange CO2 between atmosphere. Phytoplankton increase with under optimal conditions in laboratory, but it unclear whether same degree exists nature,...
Conventional methods for the estimation of marine phytoplankton diversity include collection a small volume seawater which is analysed under microscope. We sampled natural communities and also synthetic generated neutral community model configuration demonstrate that traditional sampling underestimate species richness communities. In our model, represents an ensemble individuals enclosed in parcel wherein dynamics each population controlled by demographic stochasticity dispersal. By these...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 477:53-60 (2013) - DOI: https://doi.org/10.3354/meps10174 Exudation of organic carbon by marine phytoplankton: dependence on taxon and cell size Daffne C. López-Sandoval1,*, Tamara Rodríguez-Ramos1, Pedro Cermeño1,2, Emilio Marañón1 1Departamento de Ecología y Biología Animal, Universidad Vigo, 36210 Spain...
Abstract Diazotrophs are a diverse group of microorganisms that can fertilize the ocean through biological nitrogen fixation (BNF). Due to high energetic cost this process, diazotrophy in nitrogen-replete regions remains enigmatic. We use multidisciplinary observations propose novel framework for ecological niche construction fixers upwelling region off NW Iberia — one most productive coastal Europe characterized by weak, and intermittent wind-driven presence bays. The main diazotroph...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 488:1-9 (2013) - DOI: https://doi.org/10.3354/meps10443 FEATURE ARTICLE Species richness in marine phytoplankton communities is not correlated ecosystem productivity Pedro Cermeño1,*, Tamara Rodríguez-Ramos2, Maria Dornelas3, Francisco G. Figueiras4, Emilio Marañón2, Isabel Teixeira2, Sergio M. Vallina1...
The number of species autotrophic communities can increase ecosystem productivity through complementarity or a selection effect which occurs when the biomass community approaches monoculture most productive species. Here we explore resource supply on marine primary under premise that high local richness phytoplankton increases use transient Using concurrent measurements structure, nitrate fluxes into euphotic zone and from temperate coastal ecosystem, find observed productivities are best...
Abstract Aim We analysed marine phytoplankton diversity data as a function of latitude, temperature, primary production and several environmental biological variables to ascertain whether large‐scale variability in the nano‐ microphytoplankton (including diatoms, dinoflagellates coccolithophores) follows similar patterns those observed for macroorganisms. For first time we explored these relationships after correcting species richness by sampling effort. Location The global ocean. Methods To...
Abstract Zooplankton grazing onphytoplankton promotes the release of particulate and dissolved organic matter (DOM) into water column therefore plays a key role in cycling aquatic systems. Prokaryotes are main DOM consumers ocean by actively remineralizing transforming it, contributing to its molecular diversification. To explore composition zooplankton‐derived bioavailability natural prokaryotic communities, generated mixed zooplankton community coastal Atlantic off Spain was used as...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 515:61-71 (2014) - DOI: https://doi.org/10.3354/meps11007 Distinct patterns in size-scaling of abundance and metabolism coastal open-ocean phytoplankton communities M. Huete-Ortega1,5,*, T. Rodríguez-Ramos2, D. C. López-Sandoval2,3, P. Cermeño3, J. Blanco4, R. L. Palomino4, Rodríguez4, E. Marañón2 1School...
To study the response of bacteria to different size-fractions naturally occurring dissolved organic matter (DOM), a natural prokaryotic community from North Atlantic mesopelagic waters (1000 m depth) was isolated and grown in (i) 0.1-μm filtered seawater (CONTROL), (ii) low-molecular-weight (<1 kDa) DOM fraction (L-DOM), (iii) recombination high- (>1 fractions (H + L-DOM), test potential effect ultrafiltration on breaking size continuum. Prokaryotic abundance leucine...
Understanding the factors that modulate prokaryotic assemblages and their niche partitioning in marine environments is a longstanding challenge microbial ecology. This study analyzes amplicon sequence variant (ASV) diversity co-occurrence of (Archaea Bacteria) communities through coastal-oceanic gradients NW Iberian upwelling system adjacent open-ocean (Atlantic Ocean). Biogeographic patterns were investigated relation with environmental conditions, mainly focusing on optical signature...
Abstract Microbial heterotrophic activity is a major process regulating the flux of dissolved organic matter (DOM) in ocean, while characteristics this DOM strongly influence its microbial utilization and fate ocean. In order to broaden vertical resolution leucine-to-carbon conversion factors (CFs), needed for converting substrate incorporation into biomass production by bacteria, 20 dilution experiments were performed North Atlantic Ocean. We found depth-stratification empirical CFs values...