Luís Alves

Luís Alves
Polytechnic of Leiria · Cetemares

15.82
 · 
Master of Science

About

17
Publications
2,252
Reads
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66
Citations
Introduction
I hold an MSc in Applied Biotechnology and am currently working on my PhD in Biology. A proud member of the Laboratory of Ecology and Mechanisms Of Stress (Politechnic of Leiria), currently trying to understand how pollution affects sharks. I am also the current president of the Portuguese Association for the Study and Conservation of Elasmobranchs (APECE).
Research Experience
February 2015 - November 2015
Instituto Politécnico de Leiria
Position
  • Research Assistant
Description
  • PTDC/AGR-PRO/3496/2012 Integrating Omics in ecotoxicology: tools for environmental risk assessment PTDC/AGR-PRO/3496/2012
Education
September 2012 - November 2014
Instituto Politécnico de Leiria
Field of study
  • Applied Biotechnology
September 2008 - December 2011
Instituto Politécnico de Coimbra
Field of study
  • Biotechnology

Publications

Publications (17)
Article
Portugal plays a major role in shark, skate and ray fisheries in the European Union. With the decline of these animals raising concerns amongst scientists all over the world, we set out to provide an updated assessment on elasmobranch landings in Portugal between 1986 and 2017. The dataset analysed in this study consisted of 15,521 records, each wi...
Poster
Full-text available
This study aims to access the environmental health of mid-trophic fishes from different geographic areas and seasons in the northeast Atlantic, emphasising on mercury contamination, and relate contamination with trophic ecology and stress responses.
Poster
Full-text available
Assess inter specific differences in oxidative stress of Yellow legged and Audouin’s gulls related with their ecological niches
Article
Full-text available
Inhibition of acetylcholinesterase (AChE) activity has been widely used to assess the exposure and effects ofanticholinergic environmental contaminants in several species. The aim of this study was to investigate ifsublethal concentrations of the organophosphorous pesticide chlorpyrifos (CPF), a well-known AChE inhibitor,would also affect cholinest...
Article
The notion that thermal specialists from tropical regions live closer to their temperature limits than temperate eurytherms, seems too generalized. Species specific differences in physiological and biochemical stress reactions are linked to key components of organism fitness, like metabolic capacity, which indicates that acclimation potential acros...
Article
The individual effect of four human antibiotics on the microalgae Raphidocelis subcapitata was investigated following a 120-h exposure. The effects were assessed by analyzing growth, and biochemical parameters related with: 1) antioxidant capacity and oxidative damage by measuring superoxide dismutase (SOD) activity and lipid peroxidation (LPO) lev...
Article
The present study evaluated the effects of exposure to different target pCO2 levels: control (C: 370μatm, pH = 8.15) and ocean acidification (OA: 710μatm, pH=7.85) on development and biochemical responses related with oxidative stress and energy metabolism during the crustacean Homarus gammarus (L.) larval development, integrating different levels...
Article
Full-text available
Marine ecosystems are constantly being threatened by contaminants produced by human activities. There is an urge to better understand their impacts on marine organisms and develop reliable tools for biomonitoring studies, while also assessing their potential impacts on human health. Given their position on top of food webs, sharks are particularly...
Article
Full-text available
Holothuria scabra is the most valued and cultured tropical sea cucumber, given the great demand of this species for human consumption. However, despite its ecological and economic relevance, little is known regarding its immune responses under thermal stress. Here, the main goal was to study the response of sea cucumbers to temperature stress, asse...
Conference Paper
1. Introduction Acetylcholinesterase (AChE) is a vital enzyme for the normal functioning of the neuromuscular system, where it is responsible for the hydrolysis of acetylcholine into choline and acetic acid, thus preventing continuous nervous impulses (Murphy, 1986; Walker and Thompson, 1991). The measurement of AChE and the activity of other chol...
Conference Paper
Fatty acids are carbon-rich compounds that are ubiquitous in all organisms and relatively easy to metabolize. Once incorporated in the organism, their biological specificity and the fact that they are transferred from primary producers to higher trophic levels without changing in characteristics, make fatty acids suitable for use as biomarkers. Dif...

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Cited By

Projects

Projects (3)
Project
Top predator marine species such as sharks tend to accumulate particularly high levels of environmental pollutants. Blue sharks are one of the most widely distributed and most frequently caught shark species worldwide. BLUESHARKER aims to develop a set of tools that can be used to assess effects of ocean contamination on blue sharks' fitness and health, and indirectly infer about the quality of oceans. Information about the accumulation of different pollutants in these sharks and their molecular and physiologic responses will not only be valuable for improved conservation measures but, as this shark species is highly used for human consumption, will be of utmost interest to assess potential risks to human health. With the results of this project we expect to have a better understanding of the organisms' mechanisms to cope with different ocean contamination scenarios, and to develop a biomarker toolbox to be applied in future marine biomonitoring programs.
Project
Using a trophic network of several ecological indicators from seabirds to fish species, ECOLIND will link geographic, pollutant and health information in the marine environment, based on position data, metal contamination, biochemical stress responses and stable isotope analyses. This will enable to assess the areas and species more vulnerable to contaminants and other potential marine threats, which one would expect to have a spatial and/or a trophic relationship. This will result into a very embracing ecological assessment of the trophic network along the Portuguese coast and made available to the general public and scientific community.
Project
Echinoderms are useful model species to assess the effect of global and local stressors. They are not only key-components of the marine ecosystems playing fundamental ecological roles, but their external body structure and characteristics also make them easy targets for exogenous factors. Temperature is a key environmental factor that shapes the physiology of ectothermic marine organisms and thereby their biogeography and mode of life in various ecosystems especially in times of global change.This project aims to assess thermal stress (and later hypoxia) in two Holothuriidae species. Stress conditions will be detected with a multiple biomarker and classical endpoints approach (expertises from each proponent's laboratories) in order to gather a comprehensive picture of how temperature and oxygen stress is affecting Holothurians at different levels of biological organization in order to define species-specific thermal and oxygen thresholds. By conducting comparative studies with congeneric species living in different climatic zones, it ill be possible to infer about the evolutionary basis of climate sensitivity as well as acclimation and adaptation processes and potencial aquaculture improvement. Project funded by Fundação para a Ciência e Tecnologia (Portugal) and the German Academic Exchange Service (DAAD).