A5008968661- Identification and Quantification in Food
- Genetic diversity and population structure
- Fish Biology and Ecology Studies
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Aquaculture Nutrition and Growth
- Hypothalamic control of reproductive hormones
- Marine and fisheries research
- Fish Ecology and Management Studies
- Reproductive biology and impacts on aquatic species
- Ichthyology and Marine Biology
- Aquatic Invertebrate Ecology and Behavior
- Parasite Biology and Host Interactions
- Environmental DNA in Biodiversity Studies
- Marine Ecology and Invasive Species
- Aquaculture disease management and microbiota
- Neuropeptides and Animal Physiology
- Sperm and Testicular Function
- Genomics and Phylogenetic Studies
- Birth, Development, and Health
- Epigenetics and DNA Methylation
- Animal Nutrition and Physiology
- Biochemical Analysis and Sensing Techniques
- Pharmaceutical and Antibiotic Environmental Impacts
- Hemoglobin structure and function
- Animal Genetics and Reproduction
University of Girona
2014-2024
Institut de Ciències del Mar
2005-2013
Institut Català de Ciències del Clima
2005-2013
Consejo Superior de Investigaciones Científicas
2007-2013
Texas A&M University at Galveston
2004-2012
Centro Mediterráneo de Investigaciones Marinas y Ambientale
2008
Universidad de Valladolid
1966
Universitat de Barcelona
1966
Sex ratio shifts in response to temperature are common fish and reptiles. However, the mechanism linking during early development sex ratios has remained elusive. We show European sea bass (sb), a which effects on maximal before gonads form, that juvenile males have double DNA methylation levels of females promoter gonadal aromatase (cyp19a), enzyme converts androgens into estrogens. Exposure high increased cyp19a females, indicating induced-masculinization involves methylation-mediated...
Background Tuna species of the genus Thunnus, such as bluefin tunas, are some most important and yet endangered trade fish in world. Identification these traded forms, however, may be difficult depending on presentation products, which hamper conservation efforts control. In this paper, we validated a genetic methodology that can fully distinguish between eight Thunnus from any kind processed tissue. Methodology After testing several markers, complete discrimination tuna was achieved using...
Abstract Background Yellowfin and skipjack tuna are globally distributed in the world's tropical sub-tropical oceans. Since little, if any, migration of these fishes occurs between Atlantic Indo-Pacific Oceans, one might expect to see genetic differences sub-populations ocean basins. However, yellowfin have extremely large population sizes. Thus, rate drift should be slower than that observed for other tunas. Results Low levels differentiation were Pacific samples tuna. In contrast, no was...
The role of genes implicated in the regulation spermatogenesis and their patterns expression is still poorly understood. In this study, we took advantage cystic arrangement teleost testis to set up a laser capture microdissection procedure isolate cells from cysts containing spermatogonia, spermatocytes, spermatids, or spermatozoa. We then used quantitative PCR determine stage-specific germ cell marker vasa; gonadal aromatase (cyp19a); estrogen receptors (ers) alpha, beta1, beta2 (era, erb1,...
The Senegalese sole, Solea senegalensis, is a highly prized flatfish of growing commercial interest for aquaculture in Southern Europe. However, despite the industrial production sole being hampered primarily by lack information on physiological mechanisms involved reproduction, growth and immunity, very limited genomic available this species. Sequencing S. senegalensis multi-tissue normalized cDNA library, from adult tissues (brain, stomach, intestine, liver, ovary, testis), larval stages...
The KISSPEPTIN-1 receptor (KISS1R) and its ligands (KISSPEPTINS) are implicated in the regulation of onset puberty. We report coding region genomic structure kiss1r gene a modern teleost, Senegalese sole (Ss). Ss cDNA contained an opening frame 1137 bp, which results predicted 378 amino acid protein. Searching databases allowed identification orthologues six new species belonging to three vertebrate groups established evolutionary relationships all KISS1R sequences available date. Analysis...
Intentional mislabelling of seafood is a widespread problem, particularly with high-value species like tuna. In this study we examine tuna mislabelling, deliberate substitution, types substitution and its impact on prices. The survey covered the commercial chain, from Merca-Barna to fishmongers restaurants in Spanish Autonomous Community Catalonia. To understand geographic extent problem also sampled Merca-Madrid, Europe’s biggest fish market, Merca-Málaga for proximity bluefin migratory...
The European sardine exhibits drastic changes in body condition, growth, and reproduction outputs with fluctuating environments, leading to trade-offs life history traits. This study aimed compare the health status of sardines collected four areas western Mediterranean facing different environmental anthropogenic pressures (the Gulf Lion, northern Catalan coast, southern Alboran Sea). A decreasing gradient was observed somatic condition from south north Mediterranean. Sardines Lion exhibited...
Abstract Viñas, J., Pérez-Serra, A., Vidal, O., Alvarado Bremer, J. R., and Pla, C. 2010. Genetic differentiation between eastern western Mediterranean swordfish revealed by phylogeographic analysis of the mitochondrial DNA control region. – ICES Journal Marine Science, 67: 1222–1229. Despite there being evidence several discrete breeding grounds, populations have been considered a single panmictic unit with no genetic substructure. Sequence (mtDNA) region five locations (n = 251) reveals...
Abstract Viñas, J., Sanz, N., Peñarrubia, L., Araguas, R-M., García-Marín, J-L., Roldán, M-I., and Pla, C. 2014. Genetic population structure of European anchovy in the Mediterranean Sea Northeast Atlantic Ocean using sequence analysis mitochondrial DNA control region. – ICES Journal Marine Science, 71: 391–397. The (Engraulis encrasicolus) exhibits a complex Ocean. To resolve genetic this species, we surveyed variability (mtDNA) region samples (n = 563) from 13 locations Atlantic, Bay...
Abstract Gordoa, A., Olivar, M. P., Arevalo, R., Viñas, J., Molí, B., and Illas, X. 2009. Determination of Atlantic bluefin tuna (Thunnus thynnus) spawning time within a transport cage in the western Mediterranean. – ICES Journal Marine Science, 66: 2205–2210. For first time, being towed from Mediterranean ground to fattening facility off coast northeastern Spain was examined during 2008 fishing season. Daylight night surface plankton samples were collected using bongo nets located front...
Previous genetic studies of Atlantic swordfish (Xiphias gladius L.) revealed significant differentiation among Mediterranean, North and South populations using both mitochondrial nuclear DNA data. However, limitations in geographic sampling coverage, the use single loci, precluded an accurate placement boundaries estimates admixture. In this study, we present multilocus analyses 26 nucleotide polymorphisms (SNPs) within 10 genes to estimate population admixture based on characterization 774...
Abstract Sanz, N., García-Marín, J-L., Viñas, J., Roldán, M., and Pla, C. 2008. Spawning groups of European anchovy: population structure management implications. – ICES Journal Marine Science, 65: 1635–1644. Samples Engraulis encrasicolus from the western Mediterranean eastern Atlantic spawning were examined by protein electrophoresis to investigate their relevance in genetic anchovy, how they fit with current definition anchovy fisheries. an earlier study also included analyses assess...