A5059211729- Marine and coastal ecosystems
- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Ecology Research
- Aquaculture Nutrition and Growth
- Oceanographic and Atmospheric Processes
- Isotope Analysis in Ecology
- Coral and Marine Ecosystems Studies
- Fish Ecology and Management Studies
- Advanced Battery Materials and Technologies
- Cruise Tourism Development and Management
- Chemical Synthesis and Characterization
- Microbial Community Ecology and Physiology
- Ocean Acidification Effects and Responses
- Aquatic Ecosystems and Phytoplankton Dynamics
- Water Quality Monitoring and Analysis
- Climate variability and models
- Marine and coastal plant biology
- Polyoxometalates: Synthesis and Applications
- Coastal and Marine Management
- Interdisciplinary Research and Collaboration
- Historical Economic and Social Studies
- Air Quality Monitoring and Forecasting
- Heavy metals in environment
- Crustacean biology and ecology
Instituto Español de Oceanografía
2010-2023
Centro Oceanográfico de Málaga
2005-2022
Proyecto Español
2013
Universidad de Málaga
1990-1995
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
1995
Università di Camerino
1995
Abstract. Marine diazotrophs convert dinitrogen (N2) gas into bioavailable nitrogen (N), supporting life in the global ocean. In 2012, first version of oceanic diazotroph database (version 1) was published. Here, we present an updated 2), significantly increasing number situ diazotrophic measurements from 13 565 to 55 286. Data points for N2 fixation rates, cell abundance, and nifH gene copy abundance have increased by 184 %, 86 809 respectively. Version 2 includes two new data sheets...
Abstract The input of new nitrogen into the euphotic zone constrains export organic carbon to deep ocean and thereby biologically mediated long-term CO 2 exchange between atmosphere. In low-latitude open-ocean regions, turbulence-driven nitrate diffusion from ocean’s interior biological fixation atmospheric N are main sources for phytoplankton productivity. With measurements across tropical subtropical Atlantic, Pacific Indian oceans, we show that (171±190 μmol m −2 d −1 ) dominates over...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 166:237-245 (1998) - doi:10.3354/meps166237 Daily larval growth and RNA DNA content of NW Mediterranean anchovy Engraulis encrasicolus their relations environment Alberto García*, Dolores Cortés, Teodoro Ramírez Instituto Español de Oceanografía, Centro Oceanográfico Málaga, Puerto Pesquero s/n, E-29640...
Temporal variability (seasonal and inter-annual) in the assembly of phytoplankton communities from northern Alborán Sea was investigated.For this purpose, taxonomic composition micro-and nano-phytoplankton at three fixed stations determined every months 1994 to 2002.A total 357 different taxa were identified.Most them (about 54%) diatom species belonging 57 genera.Dinoflagellates coccolitophorids accounted for 118 30 respectively.Two time periods could be differentiated with respect cell...
Abstract Daily growth variability of bluefin ( Thunnus thynnus ) larvae sampled in their Balearic Sea spawning grounds during the 2003–2005 seasons was examined. Multi‐factorial ANOVA applied to study effects environmental variables, such as temperature at 10 m depth (T10), microzooplankton dry weight MDW and protein/dry ratio PROT / on larval growth. The 2003 tuna BFT cohort showed fastest growth, recognizable from enhanced otolith somatic mass increment compared 2004–2005 cohorts. greater...
Because of its reduced dimensions and location, surrounded by three continents, the Mediterranean Sea could be especially vulnerable to climate change effects. An increase water column stratification inhibit winter mixing reduce frequency intensity convection processes which inject nutrients into photic layer are responsible for ventilation deep waters. In this context, long-term monitoring waters is a basic task. The RADMED project program that covers from eastern side Gibraltar Strait...
Daily growth rates were estimated from larval anchovy (Engraulis encrasicolus) sampled in their main nursery grounds off the Bay of Málaga (SW Mediterranean) during 2000 and 2001 spawning seasons.Significantly higher observed population, representing a 20% increase through size classes analysed.The decimated SW Mediterranean population experienced successful recruitment this year at 13,000 tons for by acoustic evaluation small pelagic resources.The distribution recruited juveniles showed an...
Different works appearing during the last decade show that western Mediterranean has suffered a temperature and salinity increase 20th century. Most of these analyze long‐term trends in Levantine Intermediate Water (LIW) Western Deep (WMDW); those dealing with changes shallow coastal waters are very scarce. It is still an open question whether due to meteorological factors occurring or if they caused by water masses contributing deep formation. In this work we data obtained century (and...
The waters surrounding the Balearic archipelago are considered to be prime spawning habitats of bluefin tuna (Thunnus thynnus) and other species such as albacore (T.alalunga) in Mediterranean.During 2003 season, a larval survey (TUNIBAL 0703) was carried out assess distribution larvae relation hydrographic mesoscale features.Tuna were collected by means surface plankton tows with bongo gear quadrangular mouth measuring 1 m diagonally.The otolith microstructure 157 71 field-captured...
The Alborán Sea is a hydrographically complex and variable area in which wind-driven coastal upwelling occurs.Its most abundant small pelagic resource the sardine (Sardina pilchardus), subject to major interannual oscillations.Postflexion stages of larvae were sampled their main nursery grounds north Sea, juveniles periodically throughout recruitment season.Daily growth analysis was used identify periods favourable for larval survival assess evolution daily increment widths during first...
The utility of three different algorithms for retrieving surface chlorophyll-a values from satellite images MODIS-Aqua is tested in the northern Alboran Sea. available global algorithm to calculate reflectance (OC3M) overestimates study area. Another regional specifically developed Mediterranean Sea (MedOC3) improves estimates although best outcome obtained with OC5, which was Atlantic coastal waters. perform worse at situ concentrations higher than 1 mg m−3 and exhibit uncertainty levels...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 499:47-64 (2014) - DOI: https://doi.org/10.3354/meps10630 Effects of community composition and size structure on light absorption nutrient uptake phytoplankton in contrasting areas Alboran Sea Jesús M. Mercado1,*, Iria Sala1, Soluna Salles1, Dolores Cortés1, Teodoro Ramírez1, Esperanza Liger2, Lidia Yebra1,...
Wet mass and DNA, RNA protein content increased significantly with standard length ( L S ) of sardine Sardina pilchardus larvae, collected in January 1995, the Bay Málaga, North Alboran Sea. , wet were closely related allometrically to otolith radius R ). Larval daily increments decreased but larval age. Daily showed a negative poor relationship long‐term growth. In contrast, positively correlated. Differences between observed back‐calculated radius‐at‐age indicated that larvae slow growth...
Late larval stages of sardine (16-23 mm) were sampled during the 2003 spawning season in their nursery grounds located off Ebro river mouth, on Catalan coast, and two bays Alborán Sea coasts, Bay Almería Málaga.The daily growth analysis each population revealed faster larvae than both Alboran populations.This fact is supported by greater content with age DNA, RNA protein.However, significantly higher carbohydrate a Fulton's index, indicative energy storage individuals, populations Bays...
Temperature time series from 1992 to 2001 (ECOMÁLAGA Project), show an intense warming trend in deep layers (200m depth) of Málaga Bay (0.02°C/yr). Data MEDATLAS that this is 0.005°C/yr throughout the whole century. Another striking change disappearance cold Western Intermediate Water (WIW) after 1992. This could be responsible temperature changes continental shelf.
The annual cycle of marine cladocerans was studied over six years from 1994 to 1999 within the frame monitoring Project ECOMALAGA at a nine stations in NW Alboran Sea, with aim assessing seasonal patterns and interannual trends distribution abundance cladocerans. Seven species (Penilia avirostris, Evadne nordmanni, spinifera, Pseudoevadne tergestina, Pleopis polyphemoides, Podon leuckarti intermedius) were detected northwest Sea. Total cladoceran relative varied 0 89 % total higher...
Respiratory electron transport system (ETS) activity was measured in plankton samples (<200 μm) collected the NW Alboran Sea. Sampling carried out during seasonal cruises (summer and autumn 2003 winter spring 2004) 12 stations located transects off coast of Malaga (southern Spain). This work reports for first time variations Arrhenius activation energy (Ea) as well being study to address CO2 balance These were related changes phytoplankton community assemblage, which could ultimately be...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 359:51-68 (2008) - DOI: https://doi.org/10.3354/meps07417 Partitioning effects of changes in nitrate availability and phytoplankton community structure on relative uptake Jesús M. Mercado1,*, Teodoro Ramírez1, Dolores Cortés1, Marta Sebastián2, Esperanza Liger3, Begoña Bautista2 1Instituto Español de...
The role of carbonic anhydrase (CA) in inorganic carbon acquisition (dissolved carbon, DIC) was examined Alboran Sea phytoplankton assemblages. study area characterized by a relatively high variability nutrient concentration and abundance taxonomic composition phytoplankton. Therefore, the relationship between environmental capacity for using HCO3 (-) via external CA (eCA) examined. Acetazolamide (AZ, an inhibitor eCA) inhibited primary productivity (PP) 50% samples, with inhibition...