MARE - Comunicações em conferência com publicação em atas
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- Effects of different drying conditions on the rehydration ratio and water holding capacity properties in three different species of algae Ulva lactuca, Codium vermilara and Codium tomentosumPublication . Rodrigues, Sidónio; Afonso, Clélia; Mouga, Teresa; Nunes, PauloOver the last years, algae have been increasingly used in Human food due their rich chemical and nutritional composition, particularly the high supply of essential nutrients to the human body such as protein and dietary fiber. Dietary fiber can be divided into two different types: soluble and insoluble. The characteristics of soluble dietary fiber are related to some physical and chemical properties such as rehydration ratio and water holding capacity and are important in assigning the functional and organoleptic properties and in preventing some human pathologies such as cardiovascular disease and obesity. The present study aimed to investigate the influence of different drying conditions on the rehydration ratio and water holding capacity of three green algae, Codium vermilara, Codium tomentosum and Ulva lactuca. The methods used for the determination of water retention capacity and rehydration ratio were similar to those used in previous studies (Susuki, T. et al., 1996). The algae were processed in a tray dryer and the drying conditions were: Temperature: 30ºC and 40ºC; Relative Humidity: 28%47% ; air velocity 1,9 m/s. In this work, it was concluded that higher drying temperature conditions originate lower rehydration ratio and consequent lower water holding capacity possibly due to a higher physical damage in the algae tissues. It was also observed that both Codium species have higher values for these two parameters than Ulva lactuca, under the same rehydration conditions.
- Berlengas Biosphere Reserve : plan for the assessment of ecosystem services and functionsPublication . Leandro, Sérgio; Marques, Daniel; Mouga, Teresa; Coelho, Helena; Rodrigues, Sandra; Maranhão, PauloThe project Berlengas Biosphere Reserve Plan for the Assessment of Ecosystem Services and Functions arises from the need to identify and assess ecosystem services, promoting sustainable uses of the services in the Reserve. The high degradation rate currently observed in the natural systems, thus reducing the level and quality of ecosystem services, is reflected in a negative effect on environmental quality, human wellbeing and in some economic activities. Thus, it becomes inevitable to promote the need to convey the importance of these services to society. It is also essential to contribute to the development of innovative and environmentally sustainable practices which will maintain the functioning of the local ecosystem and the sustainability of the services. Thus, the main goals of this project are i) to identify and analyse the impacts and dependencies on ecosystem services in the Reserve; ii) to analyse the trends of the priority services, iii) to identify the risks and opportunities associated with these services; iv) to evaluate their value and ultimately iv) to disseminate the results improving conservation and management. Based on the results to be obtained through the evaluation and maintenance of these services it is expected an improvement on the environment in the region and the development of efficient mechanisms for the management of resources. Started in February 2014, over the past 3 months much research has already been conducted, with emphasis for the identification of services and opportunities in the Reserve. Ecosystem services in Berlengas can range from simply providing essential goods or support (e.g. fish) to cultural services (e.g. field trips, diving). Work is also being done to develop, define and optimize the methods to assess ecosystems services trends and values.
- Höpüpü: surfing stoked on the waves of Peniche. The surfer and the satisfaction with his surf tourism experiencePublication . Nunes, J.M.; Mendes, S.; Jorge, J.P.More recently, surf has acquired an overwhelming dimension, both in terms of media coverage and in terms of economic relevance and direct impact in the communities. The Portuguese situation is a clear reflection of that, especially in Peniche, where this phenomenon is part of strategic documentation related with the “Sea economy”, namely via the so called “Surf Tourism”. Nowadays, Portugal is referred to as one of the most attractive countries as a tourist destination as a whole, but also as a tourist destination of reference when it comes to surfing. Furthermore, Peniche is one of the key locations for these activities, with an increasing range of packages and surf tourism offers, especially taking advantage of their environment, landscape and other characteristics related to nature. The main purpose of this work is to characterize in detail the “surfer/surf tourist” at Peniche and measure his satisfaction with this site as a surf tourism destination. In addition, it is proposed to the “surfer/surf tourist” to evaluate the satisfaction versus the level and quality of surf found. In order to achieve this purpose, a comprehensive survey was produced and conducted. The target was visitors of Peniche that matched to the typical “surfer/surf tourist”, achieving a response rate of 363 individuals. The results obtained and the knowledge produced as an outcome of this investigation lead us to build the profile of the “surfer/surf tourist” visiting Peniche in association with his expectative. Also, the study allowed leveraging policies and strategies directly addressing the expectations of this particular market niche in order to – using a sustainable approach – maximizing the potential of this activity.
- Surf: royal sport for the natural kings of earth: uma perspetiva históricaPublication . Nunes, J.M.; Mendes, S.; Jorge, J.P.In recent years, surf has reached such proportions in terms of media coverage and importance in the Portuguese economy such a way that even attracted the government's attention to the phenomenon. This attention was reflected in national strategic documents of the economy of the sea, through the surf tourism. Nowadays Portugal is mentioned as one of the countries with the highest tourist demand for surfing, which is reflected in the increasing availability of products relating to this activity, including hostels, surfcamps and surfschools, among others. As a first introduction we refer to the origin of the word surf, as well as their differentiation relative to the term surfing, some of the modalities that are practiced in the waves, chronologically followed by their origin, history, social issues and decline, with the connection to surf tourism at the beginning of the 20th century proving to be extremely important to your success and rebirth, while economic activity and subsequent development. In the end, globalization, finishing with its arrival in Portugal.
- Effect of different drying temperatures on the moisture, content of phytochemical constituents and technological properties of Peniche coast seaweedsPublication . Augusto, Ana; Nunes, Paulo M.; Mendes, Susana; Afonso, Clélia; Mouga, Teresa
- Essential oil of two plant species from Peniche coast Crithmum maritimum l. and Juniperus phoenicea subsp. turbinata (Guss. parl.): assessment of antimicrobial and antioxidant activitiesPublication . Santos, Gabriela; Ferreira, Carla; Cabral, Célia; Mouga, Teresa; Afonso, Clélia
- Environmental limits of low salinity to Gracilaria gracilis development. Where do we draw the line?Publication . França, Marcela; Afonso, Clélia; Baptista, Teresa; Pombo, Ana; Mouga, Teresa
- In-vitro setting and multiplication of Pulicaria microcephala, an endemic species from Berlengas IslandPublication . Franco, Inês; Mouga, Teresa; Afonso, Clélia
- MarinEye - A tool for marine monitoringPublication . Martins, Alfredo; Dias, André; Silva, Eduardo; Ferreira, Hugo; Dias, Ireneu; Almeida, José Miguel; Torgo, Luis; Gonçalves, Marco; Guedes, Maurício; Dias, Nuno; Jorge, Pedro; Mucha, Ana Paula; Magalhães, Catarina; Carvalho, Maria de Fátima; Ribeiro, Hugo; Almeida, C. Marisa R.; Azevedo, Isabel; Ramos, Sandra; Borges, Teresa; Leandro, Sérgio Miguel; Maranhão, Paulo; Mouga, Teresa; Gamboa, Roberto; Lemos, Marco; Santos, Antonina dos; Silva, Alexandra; Frazão e Teixeira, Bárbara; Bartilotti, Cátia; Marques, Raquel; Cotrim, SóniaThis work presents an autonomous system for marine integrated physical-chemical and biological monitoring – the MarinEye system. It comprises a set of sensors providing diverse and relevant information for oceanic environment characterization and marine biology studies. It is constituted by a physicalchemical water properties sensor suite, a water filtration and sampling system for DNA collection, a plankton imaging system and biomass assessment acoustic system. The MarinEye system has onboard computational and logging capabilities allowing it either for autonomous operation or for integration in other marine observing systems (such as Observatories or robotic vehicles. It was designed in order to collect integrated multi-trophic monitoring data. The validation in operational environment on 3 marine observatories: RAIA, BerlengasWatch and Cascais on the coast of Portugal is also discussed.
- Chemical characterization of fungal chitosan for industrial applicationsPublication . Cruz, Pedro; Vaz, Daniela C.; Ruben, Rui B.; Avelelas, Francisco; Silva, Susana; Campos, Maria
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