P. Ramos

ORCID: 0000-0002-9369-558X
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About
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Research Areas
  • Parasite Biology and Host Interactions
  • Identification and Quantification in Food
  • Fish Biology and Ecology Studies
  • Salmonella and Campylobacter epidemiology
  • Trace Elements in Health
  • Marine Ecology and Invasive Species
  • Marine and fisheries research
  • Mercury impact and mitigation studies
  • Parasites and Host Interactions
  • Myxozoan Parasites in Aquatic Species
  • Fish Ecology and Management Studies
  • Aquaculture disease management and microbiota
  • Helminth infection and control
  • Rice Cultivation and Yield Improvement
  • Genomics and Phylogenetic Studies
  • Banana Cultivation and Research
  • Heavy Metal Exposure and Toxicity
  • Streptococcal Infections and Treatments
  • Genetic diversity and population structure
  • Selenium in Biological Systems
  • Pneumonia and Respiratory Infections
  • Growth and nutrition in plants
  • Water Quality and Pollution Assessment
  • Ichthyology and Marine Biology
  • Healthcare Systems and Technology

Portuguese Sea and Atmosphere Institute
2012-2024

Universidade do Porto
2016-2024

University of Trás-os-Montes and Alto Douro
2016

Instituto de Investigacao das Pescas e do Mar
2006-2012

Universidade Federal do Tocantins
2012

The University of Texas Southwestern Medical Center
2010

The perceived bitterness of cruciferous vegetables such as broccoli varies from person to person, but the functional underpinnings this variation are not known. Some evidence suggests that it arises, in part, ability perceive goitrin (5-vinyloxazolidine-2-thione), a potent antithyroid compound found naturally crucifers. Individuals vary synthetic compounds similar goitrin, 6-propyl-2-thiouracil (PROP) and phenylthiocarbamide (PTC), result mutations TAS2R38 gene, which encodes bitter taste...

10.1093/chemse/bjq061 article EN Chemical Senses 2010-06-14

Factors driving the expansion of particular MDR Salmonella serotypes/clones are not completely understood. We assessed if emergent were more enriched in metal tolerance genes (e.g. to Cu/Ag) than other less frequent ones, as an additional feature survive environments contaminated with metals. Metal (Cu pco/Ag,Cu sil/Hg mer/As ars/Te ter) screening (PCR/sequencing), MICs CuSO4/AgNO3 (aerobiosis/anaerobiosis), genetic element characterization (S1/I-CeuI PFGE) and conjugation assays performed a...

10.1093/jac/dkw120 article EN Journal of Antimicrobial Chemotherapy 2016-04-26

Exposure to mercury is normally assessed by measuring its accumulation in hair, blood or urine. Currently, the biomarkers of effect that have been proposed for mercurials, such as coproporphyrines oxidative stress markers, are not sensitive enough and lack specificity. Selenium selenoproteins important targets thioredoxin reductase (TrxR) particular was shown be very compounds both vitro vivo. In this study we looked into relation between inhibition activity histopathological changes caused...

10.1155/2012/359879 article EN Journal of Biomedicine and Biotechnology 2012-01-01

Some pouting caught off the Atlantic coast of Portugal are discarded as unmarketable due to a dark discolouration skin and muscle. This study investigates cause this condition, describes new parasite species responsible, highlights importance educating those in charge premarket inspection food fish order reduce likelihood that consumers will eat infected fish. Macroscopically, showed considerable heterogeneity darkening hypaxial epaxial muscles. Microscopical observation revealed bipolar...

10.1016/j.ijppaw.2019.05.010 article EN cc-by International Journal for Parasitology Parasites and Wildlife 2019-05-30

10.1016/j.exppara.2020.107865 article EN Experimental Parasitology 2020-02-23

Forty four samples of Microchirus azevia (de Brito Capello) were analyzed, 75% which presented black discoloration musculature.Usually, the specimens presenting this are rejected as unfit for consumption.Bipolar eggs somewhat resembling those nematode genus Huffmanela (Nematode, Trichosomoididae) identified cause colour changes on fish muscle.From study it can be concluded that, although skin work a camouflage observed color changes, there is statistically significant relationship between...

10.3923/jfas.2016.304.310 article EN Journal of Fisheries and Aquatic Science 2016-06-15

Abstract In this article, we describe spontaneous melanotic lesions in the skin of axillary seabream, P agellus acarne ( R isso), from a defined area ortuguese C oast, located abo da oca and F oz do A relho. The corresponded to black pigmentation spots on head, fins, lips conjunctiva and, additionally, nodules head lips. some specimens, nodular formations changed their anatomical conformation. Histologically, there were melanophores scattered along basement membrane or forming aggregates...

10.1111/jfd.12031 article EN Journal of Fish Diseases 2013-02-06

The Working Group on Pathology and Diseases of Marine Organisms (WGPDMO) investigates diseases pathology in wild farmed finfish, shellfish crustaceans. This report describes new disease trends fish the ICES area, based national reports from fourteen member countries. Notable for included a widening geographic scope enigmatic “red skin disease” Atlantic salmon, with now Norway, Scotland Ireland as well Baltic Sea countries where it was origi-nally observed; increased prevalences Ichthyophonus...

10.17895/ices.pub.6086 article EN 2020-01-01

In cerrado regions, during the rainy season, occurrence of drought periods that compromise essential functions related to production upland rice is very common. order explore tolerant materials, this study aimed evaluate productive aspects lines under water stress conditions. The experiment was conducted in two years (2007 and 2008) experimental research station Universidade Federal do Tocantins, Gurupi, Brazil, evaluating 20 strains, consisting parents (Puteca Chorinho) 18 F7 strains...

10.5039/agraria.v7i1a1411 article EN Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences 2012-03-28

Fifteen live specimens of Conchoderma virgatum were attached to a grey triggerfish (Balistes capriscus) caught in S.W. Portugal.The barnacles distributed three groups (right abdominal external face, anterior side the insertion pelvic spine, and close (5 mm) left eye (on lacrymal bone)).The very different size, ranging from 2 mm 18.9 (maximum capitular length, CL).The four largest (CL 16.4 had egg lamellae.Signs potential predation on (rests half-cut cirri barnacle) detected.The left-eye...

10.1163/001121610x521163 article EN Crustaceana 2010-01-01

10.1016/j.jcpa.2024.03.105 article EN Journal of Comparative Pathology 2024-04-01
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