A5082578354- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Physiological and biochemical adaptations
- Parasite Biology and Host Interactions
- Immune Response and Inflammation
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Invertebrate Immune Response Mechanisms
- interferon and immune responses
- Zebrafish Biomedical Research Applications
- Crustacean biology and ecology
- Meat and Animal Product Quality
- Parasites and Host Interactions
- MicroRNA in disease regulation
- Environmental Toxicology and Ecotoxicology
- Iron Metabolism and Disorders
- Animal Behavior and Reproduction
- Antimicrobial Peptides and Activities
- Marine Toxins and Detection Methods
- Neuroendocrine regulation and behavior
- Influenza Virus Research Studies
- Marine Biology and Environmental Chemistry
- Coral and Marine Ecosystems Studies
- Aquatic life and conservation
- Marine and fisheries research
University of Concepción
2015-2024
Interdisciplinary Center for Aquaculture Research
2015-2019
Universitat Autònoma de Barcelona
2008-2019
University of Stirling
2013-2017
Universidad Católica del Norte
2001-2009
Throughout the primary literature and within textbooks, erythrocyte has been tacitly accepted to have maintained a unique physiological role; namely gas transport exchange. In non-mammalian vertebrates, nucleated erythrocytes are present in circulation throughout life cycle fragmented series of observations mammals support potential role non-respiratory biological processes. We hypothesised that could actively participate via ligand-induced transcriptional re-programming immune...
Behavioural fever, defined as an acute change in thermal preference driven by pathogen recognition, has been reported a variety of invertebrates and ectothermic vertebrates. It suggested, but so far not confirmed, that such changes regime favour the immune response thus promote survival. Here, we show zebrafish display behavioural fever acts to extensive highly specific temperature-dependent brain transcriptome. The observed coupling at gene-environment level robust, time-dependent...
Some species of macroalgae continue to live for extended periods time after detachment and may even maintain reproductive structures, yet very little is known about this process. Here, we describe the presence sporophylls (with sporogenous tissues) on floating kelp rafts Macrocystis spp. along coast Chile. Surveys were conducted at nine sites (18–50° S) during austral summer 2002, seen collected seven these (between 22 50° S). Fifteen (26.8%) 56 samples had sporophylls, indicating...
Abstract Thermoregulation in ectothermic animals is influenced by the ability to effectively respond thermal variations. While it known that ectotherms are affected changes, remains unknown whether physiological and/or metabolic traits impacted modifications environment. Our research provides key evidence fish highly variability during development, which leads important at several levels (e.g., growth trajectories, microstructural alterations, muscle injuries, and molecular mechanisms). In...
Resolving phenotype variation within a population in response to environmental perturbation is central understanding biological adaptation. Relating meaningful adaptive changes at the level of transcriptome requires identification processes that have functional significance for individual. This remains major objective towards complex interactions between demand and an individual's capacity respond such demands. The interpretation individuals from same or different populations remain...
Whether fishes are sentient beings remains an unresolved and controversial question. Among characteristics thought to reflect a low level of sentience in is inability show stress-induced hyperthermia (SIH), transient rise body temperature shown response variety stressors. This real fever response, so often referred as ‘emotional fever’. It has been suggested that the capacity for emotional evolved only amniotes (mammals, birds reptiles), association with evolution consciousness these groups....
Abstract Despite evidence for participation in the host response to infection, roles of many long non-coding RNAs (lncRNAs) remain unknown. Therefore, aims this study were identify lncRNAs Atlantic salmon ( Salmo salar ) and evaluate their transcriptomic regulation during ISA virus (ISAV) an Orthomyxoviridae associated with high mortalities salmonid aquaculture. Using next-generation sequencing, whole-transcriptome analysis ISAV infection was performed, identifying 5,636 putative a mean...
Abstract Aim The abundant‐centre hypothesis (ACH) is based on the assumption that physiological constraints limit populations at edges of their distributional range, yet geographical variation performance or life‐history traits has rarely been examined. Here we examine applicability ACH in a marine system by testing whether predictions are reflected large‐scale variations traits. Location Chilean coast (18°–42° S), encompassing more than 2500 km along Pacific South America. Methods Five...
Iron is a trace element, essential to support life due its inherent ability exchange electrons with variety of molecules. The use iron as cofactor in basic metabolic pathways both pathogenic microorganisms and their hosts. During evolution, the shared requirement micro- macro-organisms for this important nutrient has shaped pathogen–host relationship. Infectious pancreatic necrosis virus (IPNv), affects salmonids constituting sanitary problem industry it an impact on post-smolt survival....
DNA vaccines encoding the viral G glycoprotein show most successful protection capability against fish rhabdoviruses. Nowadays, molecular mechanisms underlying protective response remain still poorly understood. With aim of shedding light on conferred by based in haemorrhagic septicaemia virus (VHSV) turbot (Scophthalmus maximus) we have used a specific microarray highly enriched antiviral sequences to carry out transcriptomic study associated VHSV vaccination/infection. The differential...
Geographic distribution and
Abstract Skin integrity is recognized as of vital consideration for both animal welfare and final product quality farmed fish. This study examines the effects three different rearing temperatures (4, 10 16 °C) on skin healthy Atlantic salmon post‐smolts. Changes in condition were assessed by means composition analyses, quantitative histology assessments transcriptome analysis. Level protein, vitamin C E was significantly higher at °C compared with 4 °C. Quantitative measurements showed that...
The inclusion of intact phospholipids in the diet is essential during larval development and can improve culture performance many fish species. effects supplementation dietary phospholipid from marine (krill) or plant (soy lecithin) sources were investigated Atlantic salmon, Salmo salar. First feeding fry fed diets containing either krill oil soybean lecithin supplying at 2.6%, 3.2%, 3.6% 4.2% diet. Fish sampled ~ 2.5 g (~1,990°day post fertilization, dpf) ~10 (2,850°dpf). By comparison...
Abstract Salmon species cultured in Chile evidence different levels of susceptibility to the sea louse Caligus rogercresseyi . These differences have mainly been associated with specific immune responses. Moreover, iron regulation seems be an important mechanism confer immunity during host infestation. This response called nutritional has described bacterial infections, despite that no comprehensive studies involving marine ectoparasites infestation reported. With this aim, we analysed...
Ectotherms choose the best thermal conditions to mount a successful immune response, phenomenon known as behavioral fever. The cumulative evidence suggests that fever impacts positively upon lymphocyte proliferation, inflammatory cytokine expression and other functions. In this study, we have explored how choice during infection underpinning molecular processes temperature increase is coupled response. Our results show in widespread, plastic imprint on gene regulation proliferation. We...
Type II interferon gamma (IFNγ) is a pleiotropic cytokine capable of modulating the innate and adaptive immune responses which has been widely characterized in several teleost families. In fish, IFNγ stimulates expression cytokines chemokines associated with pro-inflammatory response enhances production nitrogen oxygen reactive species phagocytic cells. This work studied effect on cell-surface markers splenocytes Atlantic salmon ( Salmo salar ). vitro results showed that subpopulations...
Global warming is predicted to increase prolonged thermal challenges for aquatic ectotherms, i.e. it causes metabolic performance declines, impacts food intake, and finally impaired growth. In this research work, we investigated whether a tropical fish, Danio rerio (zebrafish), could tolerate the temperature has significant impact on growth metabolism. To answer our questions, evaluate metabolomic performance, question that received little attention so far, using differential chemical...