Search results for "Océanos"
showing 10 items of 10 documents
The effect of low frequency noise on the behaviour of juvenile Sparus aurata.
2020
[EN] Anthropogenic activities are causing increased noise levels in the marine environment. To date, few studies have been undertaken to investigate the effects of different noise frequencies on the behaviour of juvenile fish. In this study, the behavioural changes of juvenile gilthead seabream (Sparus aurata) are evaluated when exposed to white noise filtered in third-octave bands centred at 63, 125, 500, and 1000 Hz (sound pressure level, 140-150 dB re 1 mu& x3a1;a) for 7 h. The group dispersion, motility, and swimming height of the fish were analysed before and during the acoustic emission. Dispersion of the fish was found to reduce immediately upon application of low frequency sound (63…
A Tool to Assess Architectural Education from the Sustainable Development Perspective and the Students' Viewpoint
2021
[EN] Architectural education plays a fundamental role in achieving sustainable development by training future professionals who can contribute to sustainability through their practice. Nevertheless, to ensure the introduction of sustainable development in the education of future architects, it is fundamental to understand what is being done and what could be improved. Despite this, a big gap has been detected in the assessment of architectural education in Spain and worldwide. Thus, a close-ended questionnaire for students has been designed based on the outcomes from a literature review, exploratory interviews with specialists, and the qualitative analysis of two schools of architecture. Ad…
Estado de conservación de las tortugas marinas en España (revisión del periodo 2013-2018)
2021
[ES] El presente documento revisa la situación y aporta nuevos datos para las tortugas marinas en España durante el periodo 2013- 2018. Se revisa el estado de conservación para el periodo 2013- 2018 en cada una de las demarcaciones marítimas españolas: Levante¿Baleares y Estrecho¿Alborán para el Mediterráneo, y Noratlántica, Sudatlántica y Macaronesia en aguas del océano Atlántico. Se incluyen análisis de tendencias, las presiones y amenazas que afectan a cada especie y bibliografía actualizada. Para Caretta caretta, se recopila la información de los nidos en las costas mediterráneas españolas desde 2013 hasta 2018 y los movimientos de juveniles nacidos en España, tras su liberación.
Determinants affecting consumers' attention to fish eco-labels in purchase decisions: a cross-country study
2022
PurposeThe purpose of this study was to investigate the role of consumer altruism and other socio-cultural factors in predicting how much attention consumers pay to seafood eco-labels.Design/methodology/approachThe empirical investigation was carried out by administering an online questionnaire to a sample of Italian and Spanish people from December 2019 to April 2020. After carrying out the principal component analysis procedure, the work made use of an ordinal logistic regression.FindingsBoth Italian and Spanish consumers with an altruistic attitude, who feel that food produced in a sustainable way can protect the environment and workers, appear more likely to take an eco-label into accou…
Effect of Chitin Whiskers on the Molecular Dynamics of Carrageenan-Based Nanocomposites
2019
[EN] Films of carrageenan (KC) and glycerol (g) with different contents of chitin nanowhiskers (CHW) were prepared by a solution casting process. The molecular dynamics of pure carrageenan (KC), carrageenan/glycerol (KCg) and KCg with different quantities of CHWs as a filler was studied using dielectric relaxation spectroscopy. The analysis of the CHW effect on the molecular mobility at the glass transition, T-g, indicates that non-attractive intermolecular interactions between KCg and CHW occur. The fragility index increased upon CHW incorporation, due to a reduction in the polymer chains mobility produced by the CHW confinement of the KCg network. The apparent activation energy associated…
Se vende el mar
1998
Consumer Demand for Environmental, Social, and Ethical Information in Fishery and Aquaculture Product Labels
2022
[EN] Customers' attention to sustainability labels in fishery and aquaculture products (FAPs) has been increasing in the last decades, and the industry has adapted to this growing interest by adopting fish ecolabels. However, there is a growing interest to widen the sustainability concept to include the social and ethical information of the fishery and aquaculture industry and to go further from the voluntary approach on the labeling of these aspects in FAPs. For this reason, using data from 2021 Eurobarometer and using machine learning techniques, we disentangle the characteristics of the FAP buyers that consider the importance of environmental impact, ethical, and social information appea…
Innovació territorial en l'economia blava de la Comunitat Valenciana / Innovación territorial en la economía azul de la Comunidad Valenciana
2022
Este estudio, centrado en la denominada economía azul, analiza aquellos sectores de la Comunitat Valenciana ligados al litoral, como el turismo costero, los recursos vivos y no vivos, los puertos, la construcción y reparación naval y el transporte marítimo. También sectores emergentes como la energía eólica ‘offshore’ y la oceánica, la biotecnología, la extracción de minerales marinos y la desalación. Mediante un trabajo colectivo, se pretende identificar los procesos de innovación económica y social en el territorio valenciano, y en este sentido, recoge un análisis de los sectores más dinámicos de dicha economía, así como el análisis espacial de estos, de manera que se identifican los proc…
Nanotechnology to clean up oceans. An Educational Innovation Project for the inclusion of Sustainable Development Goal SDG 14 in Secondary and Higher…
2019
Los vertidos de petróleo en el mar suponen un problema ambiental muy importante. La enorme tarea de la limpieza de éstos en mares y océanos ha pesado sobre la industria, las instituciones gubernamentales y los ecologistas desde hace décadas. El proceso de limpieza siempre ha sido dificultoso e implica grandes cantidades económicas, de recursos y de tiempo. Retirar el petróleo del agua es una tarea ardua y, a menudo, la limpieza solo se consigue de manera parcial. Sin embargo, hoy en día, los científicos han desarrollado una técnica que combina nanotecnología y magnetismo que puede ayudar a la solución de este problema. En particular, un equipo de investigadores del Instituto Tecnológico de …
Encapsulation of Vitamins A and E as Spray-Dried Additives for the Feed Industry
2020
Encapsulated fat-soluble powders containing vitamin A (VA) and E (VE) were prepared as a feasible additive for extruded feed products. The effect of the encapsulating agents (Capsul-CAP®