Browsing by Issue Date, starting with "2020-01-22"
Now showing 1 - 4 of 4
Results Per Page
Sort Options
- Jellyfish, a threat or an opportunity? The non-indigenous blackfordia virginica as a potential food source for humans and aquatic organismsPublication . Cruz, Mariana Anastácio; Dias, Ester; Custódio, LuísaAnthropogenic activites such as those producing environmental changes have promoted the proliferation and establishment of non-indigenous species (NIS) in estuaries worldwide and the Guadiana estuary (Southern-Iberian Peninsula) is no exception. The extensive human development in this estuary, including river flow regulation, favoured the colonization by several NIS such as the black sea jellyfish Blackfordia virginica and more recently the blue crab Callinectes sapidus. The seasonal occurrence of B. virginica blooms have become a reason of concern due to reports of considerable economic and ecological impacts to fisheries and to the local food webs. However due to jellyfish properties, they represent an opportunity as an alternative food source for humans, while contributing to control their biomass in invaded ecosystems. Therefore, the objective of this work was to evaluate the nutritional profile of this jellyfish, testing the hypothethis that B. virginica represents an alternative and healthy food source if it follows the same composition of other known edible jellyfish. However, they may also represent a threat to the ecosystem if consumed by other NIS. Thus, the second objective of this work was to evaluate the contribution of B. virginica to the diet of opportunistic consumers in the middle Guadiana estuary, testing the hypothethis that generalist predators such as the NIS blue crab Callinectes sapidus and the indigenous green crab Carcinus maenas will benefit from B. virginica seasonal blooms by consuming this jellyfish. For the evaluation of the nutritional profile the determination of the total lipids (modified protocol of the Bligh & Dyer method), crude protein, (elementar analysis of nitrogen), ash content (incineration), fatty acids methyl esters, (gas chromatography-mass spectrometer; GC-MS), aminoacids (high pressure liquid chromatography; HPLC reverse phase), and minerals (microwave plasma – atomic emission spectrometry; MP-AES) were made. To investigate the contribution of B. virginica to the diet of the selected consumers, the presence of this jellyfish was investigated in the stomach contents of both crab species, through molecular analysis (DNA-PCR). Afterwards, its contribution to these consumers' biomass was determined using carbon (13C:13C/12C) and nitrogen (15N:15N/14N) stable isotope analysis. Results suggest that B. virginica dry biomass is mainly composed by essential minerals, and proteins rather than lipids. Blackfordia virginica composition resembled other edible jellyfish. Nonetheless the presence of cadmium, which is a toxic element, was high (3 mg/Kg) which meand they have a great potential to be used as food for humans if cadmium levels decrease. In addition, molecular analysis revealed the presence of B. virginica only in blue crab gut contents, although the Bayesian stable isotope mixing model did not show any relevant contribution to their biomass. Therefore the use of B. virginica for human consumption can represent an opportunity to decrease the abundance of this species in the ecosystem through commercial exploitation, while representing a threat if other NIS, mainly the blue crab, can take advantage of this species by consuming it.
- Plano de formação da Ecubal S.A - triénio 2019-2021Publication . Fonte, Lúcia Filipa Silva da; Sousa, CátiaO Plano de Formação visa contribuir para o desenvolvimento do potencial humano face às necessidades do mercado, através da preparação e qualificação dos profissionais para a prestação de serviços com uma qualidade técnica excelente. Esta preocupação torna imprescindível a formação dos profissionais, de forma a poderem disponibilizar soluções adequadas, inovadoras e de qualidade. O Plano de Formação visa organizar e tornar visível a informação relativa à(s) necessidade(s) formativa(s) de qualquer organização. Neste contexto, este projeto teve como objetivo a construção de um plano de formação que contempla a análise das necessidades de todos os colaboradores. Através da aplicação de questionários a todos os colaboradores da ECUBAL, AS, e reuniões efetuadas com os Diretores Pedagógicos e o Engenheiro responsável pela manutenção do espaço da empresa, este projeto resultou na conceção do Plano de Formação para a empresa ECUBAL, SA, mais conhecida por Escola Internacional do Algarve, e agora denominada por NOBEL ALGARVE.
- Plano de marketing para a empresa de turismo Nattrip em PortugalPublication . Curty, Raphaela Viegas; Machado, Carla Sofia GuerreiroO principal objetivo deste projeto foi desenvolver um plano estratégico de marketing para comunicar a chegada da empresa de turismo de natureza Nattrip em Lisboa. Para tal, foi realizado um estudo bibliográfico sobre as tendências mundiais do turismo, o turismo de natureza, o marketing digital, os serviços, o mercado turístico de Lisboa e a empresa em questão. A metodologia de pesquisa utilizada foi aplicada em estreita articulação com a empresa e permitiu a elaboração do diagnóstico da situação organizacional na qual a mesma se encontrava. Para que o trabalho de pesquisa qualitativa ficasse completo, realizou-se três entrevistas semi-estruturadas: duas com diretores da Nattrip e uma com o diretor de uma empresa concorrente direta, a Vertente Natural. Por fim, foi desenvolvido um plano de marketing com dois principais objetivos: tornar a Nattrip conhecida no mercado turístico de Lisboa e atender aos clientes em todas as etapas da jornada de compras. Também foram criadas metas e onze ações de marketing para serem executadas no prazo de um ano de forma a tornar possível atingir os objetivos desejados. O presente plano de marketing parte ainda da premissa de que a organização iria investir fortemente em criar e implementar ações de marketing digital e comercial adequadas para atingir o mercado desejado
- Visual design for cultural heritage tourism: digital application for Elvas cultural heritage tourismPublication . Gu, Meizi; Lacerda, António; Calado, Pedro Manuel Maia de Oliveira MartinsCultural heritage symbolizes the importance of regional culture. It inherits the cultural traits in a region and the essence of traditional culture, which is an irreplaceable historical treasure no matter how much time changes. The advent of information technology and big data era has facilitated the integration of traditional culture and modern life. It is a new trend to carry forward traditional culture with modern technology. Elvas, a historical town in Portugal, is also known as the fortified city. It boasts its largest bulwark fortifications that have been recognized by UNESCO to be of world heritage, as well as its rich history and culture. As a city combining with ancient and modern cultures, Elvas is full of historical monuments and sites. It is a solid foundation for the inheritance and development of cultural heritage tourism initiatives to effectively disseminate cultural heritage tourism, improve public awareness for cultural heritage, and consolidate the preservation of cultural heritage. In the meantime, the promotion of cultural heritage tourism project not only provides indirect protection for cultural heritage but also boosts the sustainable development of the urban economy. As a kind of intelligent terminal platform, the mobile app provides a broader space for cultural heritage tourism, while giving visitors greater access to relevant information. The researcher integrates the strategic idea of 'cultural heritage tourism' and 'mobile internet' into the mobile app design. This project aims to design a dedicated mobile app for Elvas Heritage Travel, and conveys the core cultural value of Elvas to users through the app to enhance their experience. Through the concept of visual communication, the researcher designs a visual image of cultural heritage and creates a mobile app to help to convey the core value of Elvas’ cultural heritage in a more practical and modern way. With the help of the marketing concept of the mobile app market, it can better integrate the cultural heritage tourism project into people's daily life. Therefore, cultural heritage is not just a concept of history and buildings, but a mobile app project that promotes a historical tour of a town or city under the background of economic globalization.