8 documents found, page 1 of 1
Assessment of trends in the Portuguese elasmobranch commercial landings over th...
Alves, Luís M.; Correia, João P. S.; Lemos, Marco F.L.; Novais, Sara C.; Cabral, HenriquePortugal 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 with information concerning the species (or higher taxonomic level...
Blue sharks (Prionace glauca) as bioindicators of pollution and health in the A...
Alves, Luís M.; Nunes, Margarida; Marchand, Phillippe; Le Bizec, Bruno; Mendes, Susana; Correia, João P. S.; Lemos, Marco F.L.; Novais, Sara C.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 susceptible to bioaccumulation, making thempotential sentinel spe...
Stress responses of the sea cucumber Holothuria forskali during aquaculture han...
Tonn, Nina; Novais, Sara C.; Silva, Cátia S. E.; Morais, Hugo A.; Correia, João P. S.; Lemos, Marco F. L.Animal welfare during handling and transportation to aquaculture facilities or public aquaria is commonly estimated by addressing injury and mortality levels. Although these procedures have been optimized for different species, data on individual species’ cellular capabilities to tolerate stress are still scarce. In the present study, several biomarkers related with oxidative stress and energy metabolism were a...
The potential of cholinesterases as tools for biomonitoring studies with sharks...
Alves, Luís M.; Lemos, Marco F.L.; Correia, João P. S.; Costa, Nuno A.R. da; Novais, Sara C.Cholinesterases (ChE) are a family of enzymes that play an essential role in neuronal and motor functions. Because of the susceptibility of these enzymes to anticholinergic agents and to other contaminants, their activity is frequently used as biomarker in pollution monitoring studies. The three known types of ChE in fish are acetilcholinesterase (AChE), butyrylcholinesterase (BChE) and propionylcholinesterase ...
Optimizing sealed transports of small ornamental fish
Silva, Rui Esteves da; Morais, Hugo; Reis, Tiago; Vasco-Rodrigues, Nuno; Correia, João P. S.This is a report on multiple simulated long-term transports of small ornamental fish inside plastic bags. The species involved were Diplodus sargus, Gobius paganellus, Gobiusculus flavescens, Lepadogaster lepadogaster and Lipophrys pholis. The objective of such simulations was moving the maximum bioload possible while ensuring 100% survivorship, ultimately resulting in savings for the end-receiver. Transports w...
Numerical Study of a Central Downwash Generating Wing
Correia, João P. S.; Silva, André; Barata, Jorge M MIn October 2005, FIA (International Automobile Federation) proposed a set of rules, for the 2008/9 Formula 1 Championship, with the objective of decreasing the difficulties for overtaking due to the wake generated by the leading car. The proposal is based on the utilization of a new concept of a double rear wing "CDG-wing" (Central Downwash Generating Wing). The objectives of this work is to analyze the aerodyn...
Numerical Optimization of the Location of F1 CDG Wings
Barata, Jorge M M; Correia, João P. S.; Silva, AndréIn October 2005, FIA (International Automobile Federation) proposed a set of rules, for the 2008/9 Formula 1 Championship, with the objective of decreasing the difficulties for overtaking due to the wake generated by the leading car. The proposal is based on the utilization of a new concept of a double rear wing "CDG-wing" (Central Downwash Generating Wing). The objectives of this work is to analyze the aerodyn...
Estudo numérico de uma asa CDG para fórmula 1
Correia, João P. S.A Fórmula 1 é um desporto motorizado onde a aerodinâmica desempenha um importante papel, obrigando a que as equipas gastem milhões de dólares anualmente de modo a garantirem uma vantagem em relação aos seus adversários, sendo a aerodinâmica uma das áreas chave para garantir o sucesso. Com este trabalho pretende-se analisar e optimizar, em determinadas condições, uma nova asa imposta pela Federação Internacional...