The Landing Obligation (LO), introduced in 2015 by the Common Fisheries Policy of the European Union (EU-CFP), has been subject to a transitional period until recently. The rationale behind the measure is that all fish species subject to a total allowable catch (TAC) must be landed to increase the sustainability of fishing activities. Through the analysis of official statistical data, it is possible to find out...
A Dieta Mediterrânica é um património histórico ativo que depende da utilização sustentável de recursos, guiando-se pelos ritmos da natureza e pelo respeito pela biodiversidade. O conceito de Dieta Mediterrânica não compreende apenas a alimentação, todavia os aspetos relacionados com os hábitos alimentares, os alimentos e a sua preparação são marcadores da identidade coletiva de um povo. Assim, este modelo cult...
Water scarcity is increasing in the Mediterranean and alternative sources of water are needed to meet food production needs, protect the environment and reduce the effects of climate change. Currently, many urban wastewater treatment plants (WWTP) produce high volumes of treated effluents which can be an alternative source of water for agriculture irrigation, since they fulfill the quality requirements for crops ...
Opuntia ficus indica (OFI) waste was evaluated as a fermentation feedstock for lactic acid production using Lactobacillus plantarum. Dilute acid pretreatment of the OFI cladodes (OFIC) was performed for extracting maximum fermentable sugars by optimizing process parameters using statistical optimization method. The best results were obtained with HCl 1% (v/v), temperature 120 ◦C, residence time 40 min, granulat...
Anthropogenic pressure on coastal areas has been increasing in the last decades, threating the saltmarshes and the ecosystem services they provide. Sarcocornia fruticosa can have an important role in sequestration of metals from human activities. This study evaluated the effect of metal toxicity in saltmarsh sediment (measured by Ecological Risk Index-ERI) on S. fruticosa ability to metal (Cd, Cr, Ni, Pb and Zn...
A Ria Formosa localiza-se na região mais meridional de Portugal, no litoral sul do Algarve e é uma das zonas húmidas socioeconómica e ecologicamente mais importantes de Portugal continental. Em 1978, a importância ecológica da Ria Formosa foi consagrada através do Decreto-lei 45/78 de 2 de maio, com o estatuto de Reserva Natural. No entanto, quase uma década depois, o estatuto foi alterado para Parque Natural d...
Seafood products are perceived as healthy foods. However, several species of seafood are still not fully utilized for different reasons or can be valued outside the original locale, if issues with the short shelf-life and/or the preparation/presentation form are overcome, e.g., gray triggerfish, <i>Balistes capriscus</i>. Consumed mostly fresh, its flesh is of excellent quality. We studied the effect of differe...
A História da Ciência é a soma das histórias dos homens e mulheres que para ela contribuíram. Eles passaram as suas vidas angariando Informação, que uma vez tratada transforma-se em Conhecimento, o qual é compilado em artigos e livros. Muitas histórias da Ciência começam com um grande estrondo, mas esta história começou com um humilde clique. Numa fria manhã de inverno de 1988, um homem muito alto permanecia im...
The quality index method (QIM) is a leading method of assessing the freshness (and thus quality) of seafood that is based on relatively few sensory attributes considered relevant. These characteristics are scored using a 0 to 3 demerit points' scale, the sum of which is designated the quality index (QI) and quantifies the specimens' lack of freshness. The linear relationship between QI and storage time allows f...
Temperature and salinity changes can affect nutrient assimilation dynamics in primary producers. Green macroalgae use nitrate as a main source of nitrogen for their metabolism. Nitrate needs to be reduced by nitrate reductase, before amino acids synthesis. Our aims were to study the effect of temperature and salinity changes on nitrate reductase activity (NRA) in Ulva rigida and Enteromorpha clathrata, and to a...