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Introduction
Additional affiliations
March 2007 - present
September 2011 - present
March 2007 - present
Education
September 1995 - July 2000
Publications
Publications (42)
The main objective of this study was to design a method able to forecast gonadal stages in Chamelea gallina based on the influence of environmental conditions. This tool could be used to improve its fishery management since natural beds have been extremely overexploited during the last few decades on the European coasts and populations have severel...
Although the number of marinas along shorelines has significantly increased during the last years, there is a lack
of studies on mobile epifauna associated to floating pontoons or infauna inhabiting soft bottoms of marinas.
Artificial hard substrate (lateral surface of pontoons) and soft substrate (sediment) were sampled in 42 marinas along the Ibe...
Meiofauna distribution in relation to human rigid coastal structures
The distribution, abundance and diversity of marine invertebrate species are determined by various biological functional factors and by extrinsic factors such as ecological disturbances that modify the biotic environment. In sandy beaches, there is evidence that macrofaunal communities alter their diversity and abundance depending on climatic and s...
Donax trunculus is a much‐appreciated commercial clam whose natural populations have been overexploited in southern–western Spain during the last decades. In order to control the decrease of natural beds, local governments establish annual closed seasons based on socioeconomic reasons, such as economic necessity or tourism interest. The objective o...
The distribution, abundance and diversity of marine invertebrate species are determined by various biological functional factors and by extrinsic factors such as ecological disturbances that modify the biotic environment. In sandy beaches, there is evidence that macrofaunal communities alter their diversity and abundance depending on climatic and s...
The spawns and the embryonic development of the nudibranch species Polycera aurantiomarginata (García and Bobo in Cah Biol Mar 25:361–373, 1984) and Polycera quadrilineata (Müller, 1776) were studied for two years. Throughout this study some abnormalities were detected in the embryonic and larval development of both species. First, the spawn seemed...
The concentration of the sex steroids 17β-estradiol, testosterone and progesterone was determined by specific enzyme-linked immunosorbent assays in the hemolymph of the mussel Mytilus
galloprovincialis and related to its sexual maturation. A non-lethal hemolymph sampling procedure was used in mussels matured in controlled conditions of a hatchery....
The EU-FP7 funded project SAFI ("Supporting our Aquaculture and Fisheries Industries", www.safiservices.eu) is primary focused on the exploitation of Earth Observation (EO) data resources, is specifically targeting the support of fisheries and aquaculture industries in our ocean and near-shore areas. The initiative aims at providing information ass...
The effect of microalga lipid composition on the reproduction of the mussel Mytilus galloprovincialis has been assessed to determine the best feeding strategy for producing large quantities of mussel seed. Three diets based on two microalgae Isochrysis galbana (clon T-iso) and Chaetoceros gracilis were tested. Besides, hatchery groups were compared...
Based on the microalgae Isochrysis galbana clone T-iso (Ti), Chaetoceros gracilis (Cg) and Tetraselmis suecica (Ts), in the present investigation 8 different feeding regimes were trialed for Mytilus galloprovincialis larval culture: starvation, 3 monospecific diets (Ti; Cg; Ts), 3 bispecific diets (Ti + Cg; Ti + Ts; Cg + Ts) and the trispecific die...
Interest of mussel hatchery development has increased during the last years as natural seed collection does not always satisfy the demand of producers. Success on larval bivalve culture depends on several factors such as diet, temperature or stocking density. In this study, the effect of larval density in mussel culture success has been assessed te...
In mollusks, the presence and endogenous synthesis of vertebrate-type steroids has been documented by literature, and most of the recorded effects are directly or indirectly connected with reproduction. In the present study, the concentration of the sex steroids 17β-estradiol, testosterone and progesterone were determined in the hemolymph of the mu...
The aim of this study is conditioning mussels with three different diets: A (T-Isochrysis), B (Chaetoceros) and C (T-Isochrysis + Chaetoceros) and determining the effect of micro-algae lipid composition. Three groups of mussels, brought to the hatchery from Gibraltar Strait in January 2011, were fed with one different diet during six weeks. All the...
Mussel aquaculture is widely prevalentworldwide, but generally relies on natural seed collection, which does
not always meet the needs of the producers. Thus, development ofmussel hatcheries is of economic interest
in some parts of the world, such as Europe; it provides opportunities not only onannual reliability of seed but
also on genetic improve...
This paper describes the lipid composition of the commercial bivalve Donax trunculus and the di¡erences
originated when the animals were fed with two phytoplankton species (Tetraselmis suecica and Chaetoceros sp.) in a hatchery. We also analysed sexrelated differences in lipid classes and fatty acid profile.Total lipids were higher in females than...
In the current investigation we analyzed the gross biochemical, lipid class and fatty acid composition
throughout different developmental stages (namely, egg, D-shaped larva, pediveliger larva and postlarva)
of mussel Mytilus galloprovincialis. Lipid was the main biochemical fraction among egg reserves (counting
ca. 80%), and the embryonic activiti...
The mobilization of nutrients and sexual hormone changes during the reproductive cycle of the Mediterranean mussel (Mytilus galloprovincialis), aswell as sex related differences have been assessed using adults brought from the field. Metabolites (glucose and glycogen) and lipid composition were determined in themantle and digestive gland. Moreover,...
We investigated the effect on Mytilus galloprovincialis larval settlement, as well as the toxicity, of serial concentrations in filtered seawater of acetylcholine (AC), γ-aminobutiric acid (GABA); 3-isobutyl-1-methylxanthine (IBMX); and the potassium ion in the form of potassium chloride (KCl) and potassium sulfate (K2SO4). All the substances assay...
We investigated the effect on Mytilus galloprovincialis larval settlement, as well as the toxicity, of serial concentrations in filtered seawater of acetylcholine (AC), γ-aminobutiric acid (GABA); 3-isobutyl-1-methylxanthine (IBMX); and the potassium ion in the form of potassium chloride (KCl) and potassium sulfate (K2SO4). All the substances assay...
In this study, the influence of food availability on the gonadal development of the smooth clam Callista chione was analyzed for the first time. Callista chione adults were maintained for 60 days under controlled conditions with two different diet rations: a scarce diet (3% of dry weight of algae by meat dry weight per day) and a high diet (6%). Th...
The sea urchins Paracentrotus lividus and Arbacia lixula were collected monthly for 1 y in the southern coast of Spain, and their gonad fatty acids were analyzed to evaluate seasonal variations. The gonad fatty acids of A. lixula significantly differed from those of P. lividus, probably because of substantial differences in diet. In both sea urchin...
The aim of this study was to analyze male and female gonad fatty acids of two sea urchin species, Paracentrotus lividus and Arbacia lixula, from the south coast of Spain. Additionally, we investigated possible differences between two locations. The ovaries of
both species showed higher percentages of 14:0, 16:0, 16:1n-7, 18:2n-6, 18:3n-3 and 18:4n-...
The gonadal index and reproductive state of the sea urchin Sphaerechinus granularis were studied for a year in three populations from southeast spain. the development of the gonad during the period of study was assessed using histological methods and four maturity stages were considered for female specimens and two for male specimens. the study of...
Polycera aurantionmarginata García and Bobo 1984 has a stable population in the intertidal area of El Portil beach (Huelva, SW spain). This fact allowed specimens of different sizes to be collected from March 2001 to December 2003. In this paper, the ontogenetic variations of the radula of P. aurantiomarginata are studied. The radulae of 141 specim...
Spawn and the embryonic development of two species of the genus Polycera were studied. Both species, Polycera
aurantiomarginata and Polycera
quadrilineata, were collected in the intertidal zone of El Portil (Huelva) in south-western Spain. In the laboratory spawn were collected daily. Length and width of the spawn, number of eggs per mm2, egg size...
The fatty acid composition of whole egg masses was investigated in 4 marine nudibranchs collected from the southwest of Spain: Polycera aurantiomarginata, Polycera quadrilineata, Berghia columbina and Berghia verrucicornis. The four species are carnivorous. All nudibranchs were characterized by high levels of n-3 polyunsaturated fatty acids (n-3 PU...
The total fatty acid composition of nine species of caprellidean amphipods collected from the Strait of Gibraltar was investigated. All caprellids were characterised by high levels of polyunsaturated fatty acids, mainly eicosapentaenoic acid, 20:5(n-3), and docosahexaenoic acid, 22:6(n-3); other major fatty acids were the saturate palmitic acid, 16...
The reproductive state of six populations of the commercial sea urchin P. lividus was investigated. Specimens were sampled monthly from six sites of southern Spain. The development of the gonad during the period of study was measured using histological methods and categorised by four stages for females and two for male specimens. A Gonadosomatic In...
