School Of Tourism Research Articles

An assessment of students' acceptance and usage of computer supported collaborative classrooms in hospitality and tourism schools

Technological advancements have become important feature of hospitality and tourism educational plans to improve learning experiences of students within schools. It is vital for these schools to assess if technologies do influence the perceptions and behaviour of their target beneficiaries. This study aims to explain the factors affecting students' acceptance and usage of computer supported collaborative classrooms in a hospitality and tourism school based on the Extended Unified Theory of Acceptance and Use of Technology (UTAUT2) model. The study is established using causal research design in order to examine the cause-effect relationship between the study variables. Sample of the study consists of 222 students recruited via campus email as respondents. Data is collected using a five-point Likert scale covering UTAUT2's factors and variables featuring acceptance and usage of computer supported collaborative classrooms. Partial least squares based structural equation modelling is used to analyse the data. Findings show that performance expectancy, effort expectancy, social influence, facilitating conditions, price-value, hedonic motivation and habit have significant influence on students' acceptance and usage of these computer supported collaborative classrooms. Responding to the need of studies validating the UTAUT2 model in the adoption and use of different technologies, this study contributes to the literature by extending the UTAUT2 into the context of computer supported collaborative classrooms. These results also provide a useful framework for hospitality and tourism schools to successfully implement experience-enhancing technologies such as computer supported collaborative classrooms.

Short report on the ectoparasitic fauna from a wild Epinephelus marginatus and osmotic shock efficiency on their removal

Short report on the ectoparasitic fauna from a wild Epinephelus marginatus and osmotic shock efficiency on their removal

Growth, development and transition rate of Chrysaora quinquecirrha ephyrae to juvenile state under different diets

Event Abstract Back to Event Growth, development and transition rate of Chrysaora quinquecirrha ephyrae to juvenile state under different diets Hugo Batista1, Margarida Ferreira1, Jose M. Louçanas2*, Nuria Baylina1 and Teresa Baptista2 1 Oceanário de Lisboa, Oceanário de Lisboa, Portugal 2 School of Tourism and Maritime Technology (ESTM), Aquaculture, Portugal The knowledge associated to jellyfish production is an area that has much to discover. Different techniques have been refined over the years. For the species covered in this work, Chrysaora quinquecirrha, one of the biggest challenges is the transition from ephyrae to juvenile state. In order to determine the diet that promotes a higher success of transition from ephyrae to juveniles, and a higher growth rate while optimizing the rational use of resources two trials were conducted. Each trial included four experiments in mini-kreisels varying only the elements supplied in addition to the base diet of rotifers and artemia nauplii. Diets of the first test: 1) Aurelia aurita mash; 2) Aurelia aurita mash in conjunction with Clupea harengus mash; 3) potassium iodide solution (10-3 M) and 4) potassium iodide solution (10-3 M) in conjunction with Clupea harengus mash. Diets used in the second test: 1) rotifers and artemia nauplii without extra elements; 2) Clupea harengus mash 3) potassium iodide (10-5 M) and 4) potassium iodide (10-5 M) in conjunction with Clupea harengus mash. In order to estimate the growth rates of the ephyrae, their diameters (distance between opposing rhopalia) were measured once per week. According to the results of the first test, it was found that the diet with Aurelia aurita mash allowed an ephyrae transition rate to juveniles of 100% over a period of 7 weeks with an average diameter of 11.200 mm at the end of the transition. The Clupea harengus mash in conjunction with the Aurelia aurita mash allowed a transition rate to juveniles of 90% within 6 weeks with an average diameter at the end of the transition of 11.850 mm. The experiments with the two diets containing potassium iodide (10-3 M) were not completed due to the detection of oxidants in the water on these kreisels. Regarding the second test, it was found that the diet with only rotifers and artemia nauplii showed a transition rate of 30% over 10 weeks with an average diameter of 6.448 mm. The diet with the addition of potassium iodide supplement (10-5 M) had the same transition rate for the same period as the previously referred diet, only varying on the average diameter achieved that was 6.907 mm. The diet with Clupea harengus mash registered a 100% rate transition on a 7 week period with an average diameter of 9.868 mm. The test with Clupea harengus mash with potassium iodide supplement (10-5 M) registered a transition rate to juvenile of 100% within a period of 8 weeks with an average diameter of 8.840 mm. Keywords: Chrysaora quinquecirrha, Ephyrae, juvenile, Clupea harengus, Potassium iodide (KI), Aurelia aurita. Conference: IMMR | International Meeting on Marine Research 2016, Peniche, Portugal, 14 Jul - 15 Jul, 2016. Presentation Type: Poster presentation Topic: Aquaculture Citation: Batista H, Ferreira M, Louçanas JM, Baylina N and Baptista T (2016). Growth, development and transition rate of Chrysaora quinquecirrha ephyrae to juvenile state under different diets. Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2016. doi: 10.3389/conf.FMARS.2016.04.00044 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 13 May 2016; Published Online: 13 Jul 2016. * Correspondence: Mr. Jose M Louçanas, School of Tourism and Maritime Technology (ESTM), Aquaculture, Peniche, Peniche, Portugal, josegria@hotmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract Supplemental Data The Authors in Frontiers Hugo Batista Margarida Ferreira Jose M Louçanas Nuria Baylina Teresa Baptista Google Hugo Batista Margarida Ferreira Jose M Louçanas Nuria Baylina Teresa Baptista Google Scholar Hugo Batista Margarida Ferreira Jose M Louçanas Nuria Baylina Teresa Baptista PubMed Hugo Batista Margarida Ferreira Jose M Louçanas Nuria Baylina Teresa Baptista Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

The impact of live bait harvesting in the macrobenthic community of a coastal lagoon – Preliminary results

The impact of live bait harvesting in the macrobenthic community of a coastal lagoon – Preliminary results

Biological characterization of the reproductive cycle of the sea urchin (Paracentrotus lividus) in the western central region of Portugal (Peniche)

Biological characterization of the reproductive cycle of the sea urchin (Paracentrotus lividus) in the western central region of Portugal (Peniche)

The hotel investment market in Poland

The author of the article aimed to present changes in the hotel market in Poland in 2001–2014 and investment processes in the sector of accommodation services. The article describes both the development of accommodation facilities in Poland in 2001–2014 as well as the level and structure of tourist traffic in such facilities. It also discusses the results of hotel construction and provides basic information on hotel investments in Poland as well as the main indicators characterising the investment process in the hotel sector. The main source of market information were data collected by the Central Statistical Office (GUS) and published on an annual basis in Turystyka/Tourism and Budownictwo – wyniki dzialalności (‘Construction – economic performance’). The article also draws on unpublished statistics in the possession of the Institute of Tourism, the Warsaw School of Tourism and Hospitality Management, on data from the Eurostat databases and from selected international publications by consultancy firms.

Preliminary study on the reproduction of the beadlet anemone Actinia equina (Linnaeus, 1758)

Preliminary study on the reproduction of the beadlet anemone Actinia equina (Linnaeus, 1758)

Academics' perceptions of continuous and collaborative curriculum review: An Australian case study

Abstract Tourism and hospitality educators face particular challenges in meeting current national and international pressures and requirements for accreditation of their curricula within national standards frameworks. Conventional curriculum design and review processes may not suffice in meeting these challenges. In other disciplines and subject areas innovative models of continuous and collaborative curriculum design processes are responding to these challenges, yet the literature on this topic is absent in tourism and hospitality education. This case study investigates academics' experiences and perceptions of a continuous and collaborative curriculum review process introduced in a School of Tourism and Hospitality Management (STHM) at an Australian regional university. The study found that academics valued the opportunities the process afforded to improve the curriculum from a whole-of-program perspective. The collaborative nature of the process, the opportunities for scholarship of teaching outcomes and the building of multidisciplinary relationships were also seen as positive outcomes. Concerns included a lack of clarity regarding procedures for acting upon matters identified during review and challenges associated with collaboration across multiple campuses.

Can a freshwater aquaculture model be used for marine drug discovery?

Aquaculture ResearchVolume 47, Issue 11 p. 3689-3693 Short Communication Can a freshwater aquaculture model be used for marine drug discovery? João Chambel, Corresponding Author João Chambel [email protected] MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, Portugal Both authors contributed equally for the laboratorial work developed.Correspondence: J Chambel, Polytechnic Institute of Leiria, School of Tourism and Maritime Technology, 2520–641 Peniche, Portugal. E-mail: [email protected]Search for more papers by this authorAndré Horta, André Horta MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, Portugal Both authors contributed equally for the laboratorial work developed.Search for more papers by this authorCelso Alves, Celso Alves MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this authorSusete Pinteus, Susete Pinteus MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this authorVera Severiano, Vera Severiano MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this authorRui Pedrosa, Rui Pedrosa MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this author João Chambel, Corresponding Author João Chambel [email protected] MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, Portugal Both authors contributed equally for the laboratorial work developed.Correspondence: J Chambel, Polytechnic Institute of Leiria, School of Tourism and Maritime Technology, 2520–641 Peniche, Portugal. E-mail: [email protected]Search for more papers by this authorAndré Horta, André Horta MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, Portugal Both authors contributed equally for the laboratorial work developed.Search for more papers by this authorCelso Alves, Celso Alves MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this authorSusete Pinteus, Susete Pinteus MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this authorVera Severiano, Vera Severiano MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this authorRui Pedrosa, Rui Pedrosa MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Peniche, PortugalSearch for more papers by this author First published: 11 May 2015 https://doi.org/10.1111/are.12794Citations: 2 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Citing Literature Volume47, Issue11November 2016Pages 3689-3693 RelatedInformation

Estimation of the ideal dosage and feeding frequency for Garra rufa (Cyprinidae)

Event Abstract Back to Event Estimation of the ideal dosage and feeding frequency for Garra rufa (Cyprinidae) Mafalda M. R. S. Catarino1, Mónica R. S. Gomes1, Sílvia C. Gonçalves1, 2 and Susana M. F. Ferreira1, 3* 1 MARE – Marine and Environmental Sciences Centre, School of Tourism and Maritime Technology, Polytechnic Institute of Leiria, Portugal 2 MARE – Marine and Environmental Sciences Centre, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal 3 CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Portugal Garra rufa are widely used in skin treatments at beauty and wellness institutes. This freshwater species is native from Eurasia and has a large distribution area, including river basins in Turkey and Iran. It has a high commercial value and arouse interest among fish farmers. Even so, G. rufa methods of production are still unknown. In fact, aspects that sustain a rapid and healthy growth of these fish need to be investigated, like an adequate daily dose and feeding frequency. This work aimed to establish: 1) the optimal feed dose per day, correspondent to the amount necessary for obtaining satiation, with a commercial granulated food; and 2) the optimal frequency of feeding for intensive production of G. rufa in Aquaculture. A total of 60 fishes underwent a 3 weeks acclimation period in laboratory, distributed by 6 aquaria, containing 10 fishes with similar body weight and length. The animals were initially fed with a dose correspondent to 10% of their body weight. This dose was gradually increased until complete satiation of the fishes. An optimal dose of 0.04 g fish-1 day-1 was found. Afterwards, the same fishes went through a 1 month experimental trial to evaluate the ideal feeding frequency. Fish growth was compared between feeding 0.2 g twice per day and 0.1333 g three times per day. Variations in size (total and fork length), plus body weight were evaluated at the end of the trial. One-Way ANOVA procedures revealed that the variations in weight and in fork length were similar between treatments, but the variation in total length was significantly higher with 3 daily feeding moments (p<0.05). In conclusion, the present results showed that the optimal dose that ensures satiation for G. rufa is 0.04 g fish-1 day-1 and that 3 daily feeding moments promotes higher growth rates. Acknowledgements This work was developed in the scope of the project “SpaGaRufa – Production of the fish Garra rufa for therapeutic purposes”, an Ignition Fund INOV C, co-financed by the Operational Programme of the Centre Region (+ CENTRO), National Strategic Reference Framework (QREN 2007-2013) and the European Fund for Regional Development, developed by GIRM-IPL – Group of Investigation in Marine Resources from the Polytechnic Institute of Leiria. Keywords: Aquaculture, Diet, Doctor fish, Growth, ad libitum Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015. Presentation Type: Poster Presentation Topic: Physiology, Behavior and Toxicology Citation: Catarino M, Gomes M, Gonçalves S and Ferreira S (2015). Estimation of the ideal dosage and feeding frequency for Garra rufa (Cyprinidae). Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.fmars.2015.03.00076 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 11 Nov 2015; Published Online: 17 Nov 2015. * Correspondence: Prof. Susana M. F. Ferreira, MARE – Marine and Environmental Sciences Centre, School of Tourism and Maritime Technology, Polytechnic Institute of Leiria, Peniche, 2520-641, Portugal, susana.ferreira@ipleiria.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Mafalda M. R. S. Catarino Mónica R. S. Gomes Sílvia C. Gonçalves Susana M. F. Ferreira Google Mafalda M. R. S. Catarino Mónica R. S. Gomes Sílvia C. Gonçalves Susana M. F. Ferreira Google Scholar Mafalda M. R. S. Catarino Mónica R. S. Gomes Sílvia C. Gonçalves Susana M. F. Ferreira PubMed Mafalda M. R. S. Catarino Mónica R. S. Gomes Sílvia C. Gonçalves Susana M. F. Ferreira Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

Undergraduate Tourism Students’ Opinions Regarding the Work Conditions in the Tourism Industry

Abstract The aim of this study is to determine the opinions of undergraduate tourism students’ regarding the work conditions in tourism industry. The population of consist of the students who are still continue their study at Near East University, School of Tourism and Hotel Management. In this study, quantitative research method was used and research data was collected by questionnaire technique. The Statistical Package for the Social Sciences (SPSS) was employed for the purpose of data entry, manipulation, and analysis. As a result, different factors have been identified and revealed.

Educational Benefits of Green Tourism School Trips in Japan

Educational Benefits of Green Tourism School Trips in Japan

Study on the Construction of Campus Smart Card on Wisdom Campus Platform

In this paper, we combine the practical application of my school digital campus construction, explores the construction of campus smart card under wisdom campus-based platform in our college. Select non-contact logic encryption IC card. Analysis the overall objectives and system functional requirements of the wisdom campus smart card system, present a system function chart. Finally, combine with cooking food department, which is the characteristic profession of our tourism school, system analysis and design a training room management subsystem in campus smart card system.

ÖNLİSANS DÜZEYİNDE TURİZM EĞİTİMİ ALAN ÖĞRENCİLERİN OTEL YİYECEK İÇECEK BÖLÜMÜNE YÖNELİK TUTUMLARI

The aim of this study was twofold; first to identify tourism vocational school students’ attitudes towards hotel food and beverage departments, second to investigate whether demographic profile of the students was any effect on the attitudes of these departments. To perform of this aim, the questionnaire forms were filled out by 372 students who have been taken education at vocational school of tourism and hotel management of Gaziantep University. According to results of the study, the students’ attitudes towards food and beverage departments consist of four dimensions which were named as “managerial importance of department”, “department job opportunity”, department working environment”, “trend to work at department”; and it was found that students’ attitudes were different at these dimensions. The other finding pertain in the study that “gender”, “class” and “department” of the students were not any effect while “work experience” was significant effect at their attitudes towards hotel food and beverage departments.

Tourism Education Universities in Turkey: Comparison of Different Structures and Related Effects on Education Quality

There are many different tourism education applications in Turkey, common ones being; tourism faculties and their tourism related departments, departments of tourism management under business faculties or faculties of economics and administrative sciences, vocational tourism schools and tourism and hotel schools; all having their advantages and disadvantages brought to the tourism higher education system. Thus this rapid increase in the quantity has led to many complex and variable structures and forms in higher tourism education. The aim of this study is to analyze and discuss the different organizational structures of higher tourism education in Turkey and focus on the strengths and weaknesses of each by offering suggestions. In this study, qualitative research is conducted and among the methods available interview technique is preferred due to its suitability for the research area. The interview questions were open ended and structured and interviews were held face to face where the population of the study consisted of 20 people who are educators and experts in Turkish tourism education

LEDs light spectrum effect on the success of fragmentation and growth of the leather coral Sarcophyton spp.

LEDs light spectrum effect on the success of fragmentation and growth of the leather coral Sarcophyton spp.

Reproductive behaviour and embryonic development of the Citrinis Clown Goby (Gobiodon citrinus) and Blue Sapphire Damselfish (Chrysiptera springeri)

Event Abstract Back to Event Reproductive behaviour and embryonic development of the Citrinis Clown Goby (Gobiodon citrinus) and Blue Sapphire Damselfish (Chrysiptera springeri) João Chambel1*, Vera Severiano1* and Rui Pedrosa1 1 School of Tourism and Maritime Technology, Marine Resources Research Group, Polytechnic Institute of Leiria, Portugal It is estimated that less than 10% of marine animals marketed for ornamental purposes are originate from captive production. The development of reliable and sustainable hatchery procedures for the captive breeding of reef fishes is essential to reduce pressure on wild populations and also because rearing fish in closed systems is likely to lead to the production of hardier specimens that are far better in captivity and survive longer. To date, basic information is available only for few marine ornamental species and further research to elucidate species-specific developmental characteristics, environmental, physiological and immunological capabilities and tolerances of embryos and newly hatched larvae are necessary for the establishment and refinement of rearing techniques. The aim of this study was evaluate the reproductive behaviour and embryonic development of two popular ornamental species G. citrinus and C. springeri. Eight adults of each species were kept under controlled conditions for the establishment of breeders pairs. After, each pair was isolated to record the courtship behaviour, spawning period and the number of eggs produced. Results showed that both species under study are demersal spawners, with parental care, eggs are adhesive to the subtrate and capsule oval. For the G. citrinus the interval between successive spawns ranged from 5 to 9 days, eggs have 1.054 ± 0.023 mm length and 0.435 ± 0.005 mm width, hatching occurs on the night of five day after fertilization and the length of newly hatched larvae averaged to 2.250 ± 0,02 mm. For the C. springeri the interval between successive spawns ranged from 4 to 7 days, eggs have 1.04 ± 0.019 mm length and 0.505 ± 0.01 mm width, hatching occurs on the night of third day after fertilization and the length of newly hatched larvae averaged to 2,277 ± 0,07 mm. The development of captive breeding techniques for targeted aquaculture species requires a sound knowledge of their gamete physiology, embryology, and early larval ontogeny and this study provides for the first time technical information about breeding of G. citrinus and C. springeri and this can be a start point for the captive breeding of this species. Keywords: Ornamental aquaculture, Gobiodon citrinus, Chrysiptera springeri, reproductive behaviour, Embryonic Development Conference: IMMR | International Meeting on Marine Research 2014, Peniche, Portugal, 10 Jul - 11 Jul, 2014. Presentation Type: Poster Presentation Topic: AQUACULTURE Citation: Chambel J, Severiano V and Pedrosa R (2014). Reproductive behaviour and embryonic development of the Citrinis Clown Goby (Gobiodon citrinus) and Blue Sapphire Damselfish (Chrysiptera springeri). Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2014. doi: 10.3389/conf.fmars.2014.02.00130 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 10 May 2014; Published Online: 18 Jul 2014. * Correspondence: Mr. João Chambel, School of Tourism and Maritime Technology, Marine Resources Research Group, Polytechnic Institute of Leiria, Peniche, Portugal, joao.chambel@ipleiria.pt Miss. Vera Severiano, School of Tourism and Maritime Technology, Marine Resources Research Group, Polytechnic Institute of Leiria, Peniche, Portugal, veraseveriano@ipleiria.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers João Chambel Vera Severiano Rui Pedrosa Google João Chambel Vera Severiano Rui Pedrosa Google Scholar João Chambel Vera Severiano Rui Pedrosa PubMed João Chambel Vera Severiano Rui Pedrosa Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

Cytotoxicity and antiproliferative activity of fractions isolated from Fucus spiralis seaweed

Event Abstract Back to Event Cytotoxicity and antiproliferative activity of fractions isolated from Fucus spiralis seaweed Celso Alves1*, Susete Pinteus1, André Horta1, Joana Silva1, Nádia Fino1, Olivier Thomas2 and Rui Pedrosa1 1 School of Tourism and Maritime Technology, Portugal 2 ICN - University of Nice-Sophia Antipolis, France In the last decades, nature has played a significant role as source of new drugs and recent trends in medicines research emphasize that marine environment has a high potential for discovery of new pharmaceutical compounds. Harsh chemical and physical conditions in the marine environment provide a production of quite specific and potent active molecules. The aim of this study was to evaluate the antitumor activity of isolated fractions obtained from seaweed Fucus spiralis on three human tumor cell lines (HepG-2; MCF-7; SH-SY5Y). In this study, five fractions obtained by Vacuum Liquid Chromatography (VLC) from Fucus spiralis methanolic extracts were tested on HepG-2, MCF-7 and SH-SY5Y cells through cytotoxicity and anti-proliferative assays. The results were obtained the according MTT method. The highest cytotoxicity was exhibited by F3 fraction on HepG-2 cells and by F1 and F5 fractions on SH-SY5Y cells, reduced the cells viability (1 mg/ml; 24 hours) in 83%, 97% and 91%, respectively. The smallest IC50 was exhibited by F1 fraction on SH-SY5Y with 308.0µg/ml. In cell proliferation assays, F1, F3, F4 and F5 fractions showed anti-proliferative activity on all cell lines tested. (1 mg/ml; 24 hours). However, the effects were more marked on HepG-2 and SH-SY5Y cells. The smallest IC50 was exhibited on SH-SY5Y cells by F1 and F3 fraction with an IC50 of 153.2 and 136.4µg/ml, respectively. In conclusion, Fucus spiralis is a promising source of new molecules with therapeutically applications in cancer. Acknowledgements This work was supported through funding provided by the European Commission Collaborative Project FP7 KBBE 2010–4 BAMMBO (Project Number 265896). Keywords: algae, antitumor activity, bioactive compounds, Marine Natural Products, MCF-7 Cells, HepG2 cells, SH-SY5Y cells Conference: IMMR | International Meeting on Marine Research 2014, Peniche, Portugal, 10 Jul - 11 Jul, 2014. Presentation Type: Poster Presentation Topic: BLUE BIOTECH Citation: Alves C, Pinteus S, Horta A, Silva J, Fino N, Thomas O and Pedrosa R (2014). Cytotoxicity and antiproliferative activity of fractions isolated from Fucus spiralis seaweed. Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2014. doi: 10.3389/conf.fmars.2014.02.00067 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 10 May 2014; Published Online: 18 Jul 2014. * Correspondence: Dr. Celso Alves, School of Tourism and Maritime Technology, Peniche, Portugal, celso.alves@ipleiria.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Celso Alves Susete Pinteus André Horta Joana Silva Nádia Fino Olivier Thomas Rui Pedrosa Google Celso Alves Susete Pinteus André Horta Joana Silva Nádia Fino Olivier Thomas Rui Pedrosa Google Scholar Celso Alves Susete Pinteus André Horta Joana Silva Nádia Fino Olivier Thomas Rui Pedrosa PubMed Celso Alves Susete Pinteus André Horta Joana Silva Nádia Fino Olivier Thomas Rui Pedrosa Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

The fan mussel Pinna rudis – occurrence and association with Pontonia pinnophylax in Terceira Island (Azores, NE Atlantic).

Event Abstract Back to Event The fan mussel Pinna rudis – occurrence and association with Pontonia pinnophylax in Terceira Island (Azores, NE Atlantic). Ricardo J. Pacheco1, João P. Barreiros2 and Sílvia C. Gonçalves1, 3* 1 GIRM - Marine Resources Research Group, School of Tourism and Maritime Technology, Polytechnic Institute of Leiria, Portugal 2 Azorean Biodiversity Group (CITA-A) and Platform for Enhancing Ecological Research & Sustainability (PEERS), University of the Azores, Portugal 3 IMAR - Marine and Environmental Research Centre, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal Pinna rudis is known as one of the biggest fan mussels in the Azores, reaching a length of up to 80cm. The specimens are generally found attached by numerous byssus threads, with their pointed anterior ends buried vertically in the substratum (mud, sandy mud or gravel). However, currently there is a notorious lack of basic knowledge about this species, with no specific studies available in the literature. The objective of the present work was to study the occurrence of Pinna rudis in the coast of Terceira Island, by analysing the spatial distribution of the individuals, and investigate the symbiotic association with the shrimp Pontonia pinnophylax. Along the south coast of Terceira Island, 23 dives in 13 sites were performed using 30 meters transects. The dives were made from August to October 2004, limited by meteorological conditions. The length of each pinnid was measured in situ, and above the sediment, to avoid unnecessary removal. During the study period, 28 P. rudis were observed with a length range from 10 to 30cm. The majority measured about 10 to 15cm. The occurrence of P. rudis was not the same at the different sites selected, occurring mainly in small patches of sand in rocky bottoms. Only solitary individuals were observed. No correlation between the length of the animals and the depth of their occurrence was detected. The shrimp Pontonia pinnophylax was found living within the largest bivalves and at deeper depths. The occupancy rate of Pinna rudis by Pontonia pinnophylax was 57% (containing one or two shrimps). It is believed that the life cycles of these two species may be linked. The exact relationship between these two species remains unclear and needs to be studied experimentally; however it is believed that this is a mutualistic association. Keywords: Pinna rudis, occurrence, spatial distribution, Pontonia pinnophylax, symbiotic association Conference: IMMR | International Meeting on Marine Research 2014, Peniche, Portugal, 10 Jul - 11 Jul, 2014. Presentation Type: Poster Presentation Topic: BIODIVERSITY, CONSERVATION AND COASTAL MANAGEMENT Citation: Pacheco RJ, Barreiros JP and Gonçalves SC (2014). The fan mussel Pinna rudis – occurrence and association with Pontonia pinnophylax in Terceira Island (Azores, NE Atlantic).. Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2014. doi: 10.3389/conf.fmars.2014.02.00098 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 25 Apr 2014; Published Online: 18 Jul 2014. * Correspondence: Prof. Sílvia C Gonçalves, GIRM - Marine Resources Research Group, School of Tourism and Maritime Technology, Polytechnic Institute of Leiria, Peniche, Portugal, scgoncalves@ipleiria.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Ricardo J Pacheco João P Barreiros Sílvia C Gonçalves Google Ricardo J Pacheco João P Barreiros Sílvia C Gonçalves Google Scholar Ricardo J Pacheco João P Barreiros Sílvia C Gonçalves PubMed Ricardo J Pacheco João P Barreiros Sílvia C Gonçalves Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.

Isolation of marine microorganisms from the Peniche coast with high biotechnological potential

Event Abstract Back to Event Isolation of marine microorganisms from the Peniche coast with high biotechnological potential Carina Coelho1, Joana A. Fernandes1, Patrícia Silva1, Clélia N. Afonso1 and Maria M. Sampaio1* 1 School of Tourism and Maritime Technology, GIRM - Marine Resources Research Group, Polytechnic Institute of Leiria , Portugal The marine environment represents more than two thirds of our planet and although it is a possible source of natural products with bioactivity, is still largely unexplored, which represents a huge window of opportunity. During the last decades Marine Biotechnology has focused some of their efforts in the search and study of marine bacteria and fungi. These microorganisms have been a valuable tool in several scientific studies, basically because they grow with relative ease, achieving considerable densities of cell mass. This is an important feature because these organisms also produce bioactive compounds, with applications in the pharmaceutical, cosmetic and food area, among others. Such compounds frequently arise from defense mechanisms or as response to stress. Annually, a growing number of new compounds from marine organisms are discovered, characterized and identified, and from these most are originated from bacteria and fungi. In the search process for natural products with proven activity, it is generally accepted that one should have a diverse and largely unexplored repertoire of microorganisms, as it enlarges the possibility of obtaining new and diverse metabolites. In the present work, results concerning the isolation of microorganisms of marine origin, obtained from the water and sediments of the Peniche coast, are shown. The main objective is to create a database of isolated microorganisms, and at the same time obtaining a basic characterization, with some interesting features from the biotechnology point of view, on viability of long-term of their cultures, as well as prepare raw extracts for bioactivity screening. Also basic microbiology characteristics will be register: gram stain, catalase, oxidase, use of different sugars and amino acids as a carbon source and on different concentrations growths of salinity, relatively to 20 strains already isolated. Acknowledgements *the first three authors contributed equally to this work and are ex-aequo first authors. Keywords: Antimicrobial activity, Biotechnology, marine bacteria, sediments., marine microbiology Conference: IMMR | International Meeting on Marine Research 2014, Peniche, Portugal, 10 Jul - 11 Jul, 2014. Presentation Type: Poster Presentation Topic: BLUE BIOTECH Citation: Coelho C, Fernandes JA, Silva P, Afonso CN and Sampaio MM (2014). Isolation of marine microorganisms from the Peniche coast with high biotechnological potential. Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2014. doi: 10.3389/conf.fmars.2014.02.00004 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 10 May 2014; Published Online: 18 Jul 2014. * Correspondence: Prof. Maria M Sampaio, School of Tourism and Maritime Technology, GIRM - Marine Resources Research Group, Polytechnic Institute of Leiria, Peniche, 2520-641, Portugal, msampaio@ipleiria.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Carina Coelho Joana A Fernandes Patrícia Silva Clélia N Afonso Maria M Sampaio Google Carina Coelho Joana A Fernandes Patrícia Silva Clélia N Afonso Maria M Sampaio Google Scholar Carina Coelho Joana A Fernandes Patrícia Silva Clélia N Afonso Maria M Sampaio PubMed Carina Coelho Joana A Fernandes Patrícia Silva Clélia N Afonso Maria M Sampaio Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.