67 documents found, page 1 of 7
The governance of the water-energy nexus: Co-produced narratives to take stock ...
Willaarts, Barbara; Novais, Maria Helena; González Navarro, José Maria; López Lara, Germán; Morais, Manuela; Zilliox, Erik; Peñate Suárez, BaltasarWater and energy (WE) are key resources to support human well-being and are highly interconnected. Intensifying demands of both resources and increasing resource scarcity are exacerbating their interconnectedness and calling for the adoption of an integrated approach called “WE nexus”. This paper explores the barriers and opportunities to govern the WE nexus in the Urban Water Cycle (UWC), particularly, the ene...
Floating photovoltaic systems: photovoltaic cable submersion testing and potent...
Rebelo, Ricardo; Fialho, Luis; Novais, Maria HelenaBackground: Floating photovoltaics (FPV) is an emerging technology that is gaining attention worldwide. However, little information is still available on its possible impacts in the aquatic ecosystems, as well as on the durability of its components. Therefore, this work intends to provide a contribution to this field, analysing possible obstacles that can compromise the performance of this technology, adding to...
Agricultural Intensification in the Alentejo Region: Effects on Water Quality a...
Martinho, Murteira; Morais, Maria Manuela; Novais, Maria HelenaAgriculture is an important sector in southern Portugal, intensified in recent years by the construction of the Alqueva Dam on the Guadiana River. The Alqueva Multipurpose Project was designed and built to supply the driest region in Portugal, including the global irrigation system. This global change in the agricultural system (i.e. from dry to irrigated land) led to a significant increase in olive grove areas...
Produtos farmacêuticos ameaçam bacias hidrográficas europeias
Novais, Maria Helena; Palma, Patrícia; Morais, Manuela; Penha, Alexandra Marchã; Fialho, Luís; Horta, PedroThe concern with the presence of pharmaceuticals and their potential impacts on aquatic ecosystems, associated with the lack of systematized information, due to legislative gaps, motivated this literature review. Published studies on pharmaceuticals’ detection and quantification in treated effluents from WWTPs and in watersheds, in Portugal, Spain, France and the United Kingdom were consulted. The transversalit...
Two new species of Nanofrustulum (Bacillariophyta) from temporary rivers in the...
Morales, Eduardo; Novais, Maria Helena; García, María Luján; Maidana, Nora; Morais, ManuelaTwo new Nanofrustulum species, N. lucectorii sp. nov. and N. ibericum sp. nov. are described from temporary streams in southern Portugal based on light and electron microscopy observations. Nanofrustulum lucectorii sp. nov. is characterised by elliptic valves with broadly rounded apices, spines with a solid core, an apically elliptic base, a flattened body, and spatulate, serrate tips that are wider than the sp...
The usefulness of ecotoxicological tools to improve the assessment of water bod...
Novais, Maria Helena; Penha, Alexandra Marchã; Catarino, Adriana; Martins, Inês; Fialho, Sofia; Lima, Adriana; Morais, Manuela; Palma, PatríciaThis study aimed to analyse the added value of using ecotoxicological tools to complement and improve the assessment of natural water bodies status, in situations of climate change, with a higher frequency of extreme events as floods or droughts. Four water bodies of streams in the Guadiana Basin (´Alamos, Amieira, Lucef´ecit, Zebro) were studied in 2017 and 2018 and classified based on the Water Framework Dire...
Studies on pharmaceutical ethnobotany in Arrábida Natural Park (Portugal)
Novais, Maria Helena; Santos, Isabel; Mendes, Sónia; Pinto-Gomes, CarlosAn ethnobotanical survey was carried out in Arrabida Natural Park, a Portuguese Protected Area in the Southwest of the Iberian Peninsula, with an area of 10 820 ha.Working with 72 local people, data on medicinal uses of 156 taxa, belonging to 56 botanical families, were obtained and presented, of which 214 uses corresponding to 81 taxa were previously unreported.
Morphological examination and biogeography of the Gomphonema rosenstockianum an...
Novais, Maria Helena; Blanco, Saúl; Hlúbiková, Daša; Falasco, Elisa; Gomá, Joan; Delgado, Cristina; Ivanov, Plamen; Ács, Éva; Morais, ManuelaThe type material of Gomphonema rosenstockianum Lang e–Bert. et E. Reichardt from La Gomera (Canary Islands, Spain) and epilithic material of rivers from several European countries were examined using light and scanning electron microscopy in order to improve the knowledge on the taxonomical status of the G. rosenstockianum and G. tergestinum (Grunow) M. Schmidt species complex. Two other Gomphonema species, G....
Taxonomy, morphology and distribution of the Sellaphora stroemii complex (Bacil...
Falasco, Elisa; Blanco, Saúl; Bona, Francesca; Gomá, Joan; Hlúbiková, Daša; Novais, Maria Helena; Hoffmann, Lucien; Ector, LucLive and treated materials from three populations of diatoms collected in Italy, Slovakia and Spain, identified in previous inventories as Navicula stroemii HUST. sensu KRAMMER et LANGE-BERTALOT, were examined under light and scanning electron microscopy. The analyses highlighted the typical single H-shaped plastid, characteristic of the genus Sellaphora. Considering this, we thoroughly investigated type materi...
EOLIMNA BECARESII SP. NOV., A NEW DIATOM TAXON FROM A SPANISH SHALLOW LAKE
Blanco, Saúl; Novais, Maria Helena; Hoffmann, Lucien; Ector, LucIn 2003 during a biological survey carried out on the shallow lakes located on the northernIberian plateau, a diatom community dominated by an unknown Eolirnna sp. was found as anepiphyte on Chara connivens in Lake Constanzana (Spain). Detailed light and scanningelectron microscopy observations allowed the description of this new species. Differentialdiagnostic criteria with respect to similar taxa, especially ...