Pedro M. Guerreiro
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View article: The Immune System in Antarctic and Subantarctic Fish of the Genus Harpagifer Is Affected by the Effects of Combined Microplastics and Thermal Increase
The Immune System in Antarctic and Subantarctic Fish of the Genus Harpagifer Is Affected by the Effects of Combined Microplastics and Thermal Increase Open
Rising ocean temperatures due to climate change, combined with the intensification of anthropogenic activity, may lead to changes in the physiology and distribution of native species. Compounding climate stress, microplastic particles (MPs…
View article: Assessing fish welfare in small-scale commercial fixed-net fisheries off the southern Portuguese coast
Assessing fish welfare in small-scale commercial fixed-net fisheries off the southern Portuguese coast Open
Despite a growing interest in animal welfare in production systems, research on fish welfare remains limited, particularly in commercial fisheries. Fish caught in fixed-net fisheries experience multiple stressors from the time of capture t…
View article: 0062 Sleep Complaints in Individuals with SYNGAP1-Associated Syndrome
0062 Sleep Complaints in Individuals with SYNGAP1-Associated Syndrome Open
Introduction Neurodevelopmental disorders, which involve atypical brain development, often result in learning disabilities, developmental delays, intellectual disabilities, behavioral issues, epilepsy, and sleep disturbances. Among these, …
View article: 0063 Subjective Sleep Assessments and Clinical Evaluations of Individuals Harboring Novel Pathogenic DEAF1 Variants
0063 Subjective Sleep Assessments and Clinical Evaluations of Individuals Harboring Novel Pathogenic DEAF1 Variants Open
Introduction DEAF1-Associated Neurodevelopmental Disorders (DAND) are a spectrum of rare genetic conditions caused by pathogenic variants in the DEAF1 gene. Despite the high prevalence of sleep disturbances in those with DAND, the specific…
View article: Biliary Leak Related with T-Tube in Liver Transplantation
Biliary Leak Related with T-Tube in Liver Transplantation Open
View article: Monte Carlo Simulation of the Transport of Atoms in Gases During Magnetron Sputtering
Monte Carlo Simulation of the Transport of Atoms in Gases During Magnetron Sputtering Open
View article: Stunning and Slaughter Methods in Gilthead Seabream: Animal Welfare and Muscle Quality
Stunning and Slaughter Methods in Gilthead Seabream: Animal Welfare and Muscle Quality Open
View article: Differential tissue immune stimulation through immersion in bacterial and viral agonists in the Antarctic Notothenia rossii
Differential tissue immune stimulation through immersion in bacterial and viral agonists in the Antarctic Notothenia rossii Open
The genome evolution of Antarctic notothenioids has been modulated by their extreme environment over millennia and more recently by human-caused constraints such as overfishing and climate change. Here we investigated the characteristics o…
View article: Insights into Conservation Success: Analysing Shore Angling Before Implementing a Marine Protected Area
Insights into Conservation Success: Analysing Shore Angling Before Implementing a Marine Protected Area Open
View article: 0041 Neuronal circuits convergently disrupted in the genetic basis of sleep phenotypes and rare neurodevelopmental syndromes
0041 Neuronal circuits convergently disrupted in the genetic basis of sleep phenotypes and rare neurodevelopmental syndromes Open
Introduction Sleep-related phenotypes have been frequently reported in early on-set epileptic encephalopathies (EE) and in developmental delay (DD) syndromes, in particular in syndromes related to autism spectrum disorder (ASD). Yet the co…
View article: Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801)
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801) Open
In the context of climate change, warming of the seas and expansion of hypoxic zones are challenges that most species of fish are, or will be subjected to. Understanding how different species cope with these changes in their environment at…
View article: Evaluating the repetitive mucus extraction effects on mucus biomarkers, mucous cells, and the skin-barrier status in a marine fish model
Evaluating the repetitive mucus extraction effects on mucus biomarkers, mucous cells, and the skin-barrier status in a marine fish model Open
Among all the mucosal barriers, the skin and its surrounding mucus are possibly the main defensive tool against changes in the environment that can be harmful for fish. Due to the extraction of this mucus being less invasive, the study of …
View article: Transcriptomic Down-Regulation of Immune System Components in Barrier and Hematopoietic Tissues after Lipopolysaccharide Injection in Antarctic Notothenia coriiceps
Transcriptomic Down-Regulation of Immune System Components in Barrier and Hematopoietic Tissues after Lipopolysaccharide Injection in Antarctic Notothenia coriiceps Open
The environmental conditions and isolation in the Antarctic have driven the evolution of a unique biodiversity at a macro to microorganism scale. Here, we investigated the possible adaptation of the teleost Nototheniacoriiceps immune syste…
View article: Sperm Characterization of Endangered Leuciscids Endemic from the Iberian Peninsula: Gamete Storage as a Tool for Helping Ex-Situ Breeding Programs
Sperm Characterization of Endangered Leuciscids Endemic from the Iberian Peninsula: Gamete Storage as a Tool for Helping Ex-Situ Breeding Programs Open
Populations of freshwater fish species endemic to the Iberian Peninsula have been declining since the mid-20th century, and several types of actions (from in situ to ex situ measurements) have been applied over the past decades for preserv…
View article: Assessment of the Reproductive Status of Captive Populations of Endangered Leuciscid Species from the Iberian Peninsula: A. hispanica, I. lusitanicum and A. occidentale
Assessment of the Reproductive Status of Captive Populations of Endangered Leuciscid Species from the Iberian Peninsula: A. hispanica, I. lusitanicum and A. occidentale Open
Populations of freshwater fish species endemic to the Iberian Peninsula have been declining
\nsince the mid-20th century, and the captive breeding of highly endangered species is considered to be
\na useful tool to restock declining popula…
View article: A Comparison of Olfactory Sensitivity in Seawater- and Freshwater-Adapted Bass, Dicentrarchus labrax
A Comparison of Olfactory Sensitivity in Seawater- and Freshwater-Adapted Bass, Dicentrarchus labrax Open
Fish rely heavily on olfaction for many aspects of their lives including foraging, defense, migration, and reproduction. Olfactory receptor neurons in the olfactory epithelium are in direct contact with the water, and are, therefore, expos…
View article: Evaluating Repetitive Mucus Extraction Effects on Mucus Biomarkers, Mucus Cells and Skin-Barrier Status in a Marine Fish Model
Evaluating Repetitive Mucus Extraction Effects on Mucus Biomarkers, Mucus Cells and Skin-Barrier Status in a Marine Fish Model Open
Among all the mucosal barriers, the skin and its surrounding mucus are possibly the main defensive tools used by fish against the environment. Due to its less-invasive extraction, the study of its production and functions has gained high i…
View article: The Stress Response in Antarctic Fish: HPI Modulation, Cortisol Profiles, Interrenal Sensitivity, and Gene Expression of Notothenia rossii Acclimated to Temperature Challenges
The Stress Response in Antarctic Fish: HPI Modulation, Cortisol Profiles, Interrenal Sensitivity, and Gene Expression of Notothenia rossii Acclimated to Temperature Challenges Open
The Antarctic Ocean is one of the most extreme marine environments. Antarctic fishes evolved in stable cold thermal conditions (−1.9 °C to 2 °C) for roughly 20 million years, displaying structural and functional features resulting from ada…
View article: Transcriptomic Analysis of Differentially Expressed Genes in Kidney and Intestine of Dicentrarchus labrax Fed Different Nutritional Amounts of Inorganic Phosphate
Transcriptomic Analysis of Differentially Expressed Genes in Kidney and Intestine of Dicentrarchus labrax Fed Different Nutritional Amounts of Inorganic Phosphate Open
Poster.-- IX Iberian Congress of Ichthyology, Porto, Portugal, from 20th to 23rd of June 2022.-- This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license
View article: Are There Differential Roles in the Parental Behaviour of the Chameleon Cichlid Australoheros facetus?
Are There Differential Roles in the Parental Behaviour of the Chameleon Cichlid Australoheros facetus? Open
Cichlids are social fishes well known for their complex behaviour. The chameleon cichlid, Autraloheros facetus, is native to South American river drainages and is currently established in several Mediterranean-type drainages in southern Po…
View article: Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus
Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus Open
The Lusitanian toadfish, Halobatrachus didactylus is a marine teleost found in coastal lagoons and river estuaries, often exposed to important changes in salinity, temperature and reduced oxygen. Sedentary species, with strong site fidelit…
View article: Metabolic Reponses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus Didactylus (Bloch & Schneider, 1801)
Metabolic Reponses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus Didactylus (Bloch & Schneider, 1801) Open
View article: Environmental Salinity Modifies Mucus Exudation and Energy Use in European Sea Bass Juveniles
Environmental Salinity Modifies Mucus Exudation and Energy Use in European Sea Bass Juveniles Open
The European sea bass (Dicentrarchus labrax) is a euryhaline marine teleost that can often be found in brackish and freshwater or even in hypersaline environments. Here, we exposed sea bass juveniles to sustained salinity challenges for 15…
View article: Evaluation of an Acute Osmotic Stress in European Sea Bass via Skin Mucus Biomarkers
Evaluation of an Acute Osmotic Stress in European Sea Bass via Skin Mucus Biomarkers Open
European sea bass is a marine teleost which can inhabit a broad range of environmental salinities. So far, no research has studied the physiological response of this fish to salinity challenges using modifications in skin mucus as a potent…
View article: LPS Modulates the Expression of Iron-Related Immune Genes in Two Antarctic Notothenoids
LPS Modulates the Expression of Iron-Related Immune Genes in Two Antarctic Notothenoids Open
The non-specific immunity can induce iron deprivation as a defense mechanism against potential bacterial pathogens, but little information is available as to its role in Antarctic fish. In this study the response of iron metabolism related…
View article: Neuroendocrine Small-Cell Carcinoma of the Gallbladder: Case Report
Neuroendocrine Small-Cell Carcinoma of the Gallbladder: Case Report Open
Gallbladder neuroendocrine carcinoma is a very rare entity, accounting for <0.2% of all neuroendocrine tumours [1]. Of the cases described in the literature, the initial presentation is usually locally advanced or even with disseminated di…
View article: Distribution and Risk Assessment of Potential Invasiveness of Australoheros facetus (Jenyns, 1842) in Portugal
Distribution and Risk Assessment of Potential Invasiveness of Australoheros facetus (Jenyns, 1842) in Portugal Open
Invasive species are recognized as a major cause of biodiversity decline. Legal regulations relating to the prevention, control, or eradication of invasive species should always be up-to-date, as the failure to recognize the problem, lack …
View article: PSXIV-9 Effect of monensin, a blend of essential oils and Lithothamnium calcareum over two racial groups in finishing cattle diets
PSXIV-9 Effect of monensin, a blend of essential oils and Lithothamnium calcareum over two racial groups in finishing cattle diets Open
This study aimed the evaluation of the effects of three feed additives – sodium monensin (MON; 32 mg/kg DM), Lithothamnium calcareum plus sodium monensim (LC+MON; LithoNutri® 5g/kg DM + 32 mg/kg DM) or a blend of essential oils (BEO; BioPh…
View article: Effect feed additives on performance of beef cattle finished in feedlot
Effect feed additives on performance of beef cattle finished in feedlot Open
\n The objective of this study was to evaluate the effects of three feed additives - sodium monensin (MON; 31.3 mg/kg DM), monensin plus the buffer additive Lithothamnium calcareum (MON+LC; 31.3 mg/kg DM + 5g/kg DM) or a blend of essential…
View article: Modulation of Pituitary Response by Dietary Lipids and Throughout a Temperature Fluctuation Challenge in Gilthead Sea Bream
Modulation of Pituitary Response by Dietary Lipids and Throughout a Temperature Fluctuation Challenge in Gilthead Sea Bream Open
Low temperatures provoke drastic reductions in gilthead sea bream (Sparus aurata) activity and nourishment, leading to growth arrest and a halt in production. However, scarce data exist concerning the implications of central core control d…