11 research outputs found
Identificación de especies alóctonas en el Delta del Ebro
Los estuarios y lagunas costeras son los ambientes marinos donde, con mayor frecuencia, se han citado especies alóctonas. El establecimiento de especies exóticas en áreas cerradas y semicerradas como estuarios, bahías y lagunas costeras provocan grandes cambios en la composición faunística convirtiéndose en uno de los principales motores de perturbación ecológica a escala local, regional y mundial. Algunos de los mecanismos más comunes para la transferencia de especies entre zonas costeras próximas son los organismos incrustantes o biofouling que forman parte de los cascos de las embarcaciones, la conexión entre masas de agua a través de canales artificiales, las aguas de lastre de las embarcaciones o la acuicultura. El Delta del Ebro se ha identificado como una de los espacios donde se han descrito un mayor número de especies alóctonas
Linking stocking densities and feeding strategies with social and individual stress responses on gilthead seabream (Sparus aurata)
Intensive aquaculture and poor management practices can cause stress and compromise welfare of farmed fish. This study aimed to assess the potential links between stocking densities and feeding methods with social and individual stress responses on juvenile seabream (Sparus aurata) through risk-taking and hypoxia tests. Seabream was first experimentally reared under two different densities: high (HD: 11-65 kg m−3) and low (LD: 3-15 kg m−3). After 120 days under these conditions, increment in fish weight was not affected by different stocking densities. HD seemed to induce a stronger schooling behavior on seabream juveniles seeking for the group safety during the risk test; while LD increased the mean number of movements per fish recorded and the time of first response. Additionally, HD conditions delayed the time of first response of proactive fish during hypoxia tests. Glucose levels were higher in reactive fish compared to proactive ones, being highly significant in fish reared at HD. In parallel, juvenile seabream was also experimentally reared for 106 days under two different feeding strategies: hand-feeding (HF) and self-demanding feeding (DF), which influenced fish growth and foraging behavior at group and individual level. HF method induced a positive effect on fish weight compared to DF systems. Time of first response during both hypoxia and risk-taking tests was shorter in HF fish than DF fish, and the mean number of movements per fish during risk-taking behavior tests was lower for DF fish compared to HF fish. No differences were found in glucose and cortisol concentrations between behavioral traits (proactive/reactive) and feeding strategies. Triggering actions of seabream in DF systems were also assessed, which seemed to be highly dependent on particular individuals and not related to proactive individuals. DF systems however reinforce the social hierarchy within the fish group, which might lead to a higher competitiveness for resources among fishes, increasing the social hierarchy, and therefore, the stress. The findings of this study provide valuable information to the industry for the management of fish stress and welfare under production conditions at social and individual level.info:eu-repo/semantics/acceptedVersio
Linking stocking densities and feeding strategies with social and individual stress responses on gilthead seabream (Sparus aurata)
Intensive aquaculture and poor management practices can cause stress and compromise welfare of farmed fish. This study aimed to assess the potential links between stocking densities and feeding methods with social and individual stress responses on juvenile seabream (Sparus aurata) through risk-taking and hypoxia testsPostprint (author's final draft
Catálogo de estrategias de feedback para profesorado universitario
Versión interactiva en: https://view.genial.ly/60fe824b5825d50ddf886a61/interactive-content-catalogo-de-estrategias-de-feedback-para-profesoradoEste documento recoge y sistematiza algunas estrategias de feedback para entornos universitarios, entendiendo como tal el proceso activo por el cual los estudiantes dan sentido a los comentarios que reciben y actúan en consecuencia. El catálogo sugiere, por lo tanto, propuestas ordenadas a modo de secuencia didáctica asociada al desarrollo de tareas complejas. Todas ellas han sido seleccionadas en tanto que contribuyen a la autorregulación del aprendizaje del estudiantado y a un aprendizaje más sostenible a lo largo del tiempo.Proyecto "Análisis de los efectos de la provisión de feedback soportado por tecnologias digitales de monitoreo sobre las competencias transversales" (Referencia PID2019-104285GB-I00) financiado por el Ministerio de Ciencia e Innovación (MICINN). Agencia Estatal de InvestigaciónEsta contribución ha sido realizada en el marco del proyecto: Análisis de los efectos
de la provisión de feedback soportado por tecnologias digitales de monitoreo sobre
las competencias transversales (Referencia PID2019-104285GB-I00) financiado por el Ministerio de Ciencia e Innovación (MICINN). Agencia Estatal de Investigació
P2P4L2L (Peer to Peer for Learning to Learn)
Projecte: 2016PID-UB / 024Memòria del projecte P2P4L2L (Peer to Peer for Learning to Learn) 2016PID-UB / 024 llevado a cabo entre 2016 i 2018 sobre el disseny i desenvolupament de pràctiques d'avaluació entre iguals per desenvolupar la competència d'aprendre a aprendre.Memoria del proyecto P2P4L2L (Peer to Peer for Learning to Learn) 2016PID-UB / 024 implementado entre 2016 y 2018 sobre el diseño y desarrollo de prácticas de evaluación entre iguales para desarrollar la competencia de aprender a aprender.PMI
Planificació de la Competència d'Aprendre a Aprendre en el Grau de Mestre d'Educació Primària
Guia on es presenta la planificació del treball de la competència d'aprendre a aprendre a través de l'avaluació entre iguals en el grau de mestre d'educació primària.Guia elaborada en el marc del Projecte d’Innovació Docent Implementació de processos d’avaluació entre iguals per contribuir al desenvolupament de la competència d’aprendre a aprendre en el Grau de Mestre d’Educació Primària (2019PID-UB/017
Informe final projecte d’innovació docent “implementació de processos d’avaluació entre iguals per contribuir al desenvolupament de la competència d’aprendre a aprendre en el grau de mestre d’educació primària” (2019PID-UB/017)
Projecte: 2019PID-UB/017Informe final del projecte d'innovació docent: "Implementació de processos d'avaluació entre iguals per contribuir al desenvolupament de la competència d'aprendre a aprendre en el grau de mestre d'educació primària" (2019PID-UB/017)
Identificación de especies alóctonas en el Delta del Ebro
Los estuarios y lagunas costeras son los ambientes marinos donde, con mayor frecuencia, se han citado especies alóctonas. El establecimiento de especies exóticas en áreas cerradas y semicerradas como estuarios, bahías y lagunas costeras provocan grandes cambios en la composición faunística convirtiéndose en uno de los principales motores de perturbación ecológica a escala local, regional y mundial. Algunos de los mecanismos más comunes para la transferencia de especies entre zonas costeras próximas son los organismos incrustantes o biofouling que forman parte de los cascos de las embarcaciones, la conexión entre masas de agua a través de canales artificiales, las aguas de lastre de las embarcaciones o la acuicultura. El Delta del Ebro se ha identificado como una de los espacios donde se han descrito un mayor número de especies alóctonas
Linking stocking densities and feeding strategies with social and individual stress responses on gilthead seabream (Sparus aurata)
Intensive aquaculture and poor management practices can cause stress and compromise welfare of farmed fish. This study aimed to assess the potential links between stocking densities and feeding methods with social and individual stress responses on juvenile seabream (Sparus aurata) through risk-taking and hypoxia tests. Seabream was first experimentally reared under two different densities: high (HD: 11–65 kg m−3) and low (LD: 3–15 kg m−3). After 120 days under these conditions, increment in fish weight was not affected by different stocking densities. HD seemed to induce a stronger schooling behavior on seabream juveniles seeking for the group safety during the risk test; while LD increased the mean number of movements per fish recorded and the time of first response. Additionally, HD conditions delayed the time of first response of proactive fish during hypoxia tests. Glucose levels were higher in reactive fish compared to proactive ones, being highly significant in fish reared at HD. In parallel, juvenile seabream was also experimentally reared for 106 days under two different feeding strategies: hand-feeding (HF) and self-demanding feeding (DF), which influenced fish growth and foraging behavior at group and individual level. HF method induced a positive effect on fish weight compared to DF systems. Time of first response during both hypoxia and risk-taking tests was shorter in HF fish than DF fish, and the mean number of movements per fish during risk-taking behavior tests was lower for DF fish compared to HF fish. No differences were found in glucose and cortisol concentrations between behavioral traits (proactive/reactive) and feeding strategies. Triggering actions of seabream in DF systems were also assessed, which seemed to be highly dependent on particular individuals and not related to proactive individuals. DF systems however reinforce the social hierarchy within the fish group, which might lead to a higher competitiveness for resources among fishes, increasing the social hierarchy, and therefore, the stress. The findings of this study provide valuable information to the industry for the management of fish stress and welfare under production conditions at social and individual level
Linking stocking densities and feeding strategies with social and individual stress responses on gilthead seabream (Sparus aurata)
Intensive aquaculture and poor management practices can cause stress and compromise welfare of farmed fish. This study aimed to assess the potential links between stocking densities and feeding methods with social and individual stress responses on juvenile seabream (Sparus aurata) through risk-taking and hypoxia tests. Seabream was first experimentally reared under two different densities: high (HD: 11-65 kg m−3) and low (LD: 3-15 kg m−3). After 120 days under these conditions, increment in fish weight was not affected by different stocking densities. HD seemed to induce a stronger schooling behavior on seabream juveniles seeking for the group safety during the risk test; while LD increased the mean number of movements per fish recorded and the time of first response. Additionally, HD conditions delayed the time of first response of proactive fish during hypoxia tests. Glucose levels were higher in reactive fish compared to proactive ones, being highly significant in fish reared at HD. In parallel, juvenile seabream was also experimentally reared for 106 days under two different feeding strategies: hand-feeding (HF) and self-demanding feeding (DF), which influenced fish growth and foraging behavior at group and individual level. HF method induced a positive effect on fish weight compared to DF systems. Time of first response during both hypoxia and risk-taking tests was shorter in HF fish than DF fish, and the mean number of movements per fish during risk-taking behavior tests was lower for DF fish compared to HF fish. No differences were found in glucose and cortisol concentrations between behavioral traits (proactive/reactive) and feeding strategies. Triggering actions of seabream in DF systems were also assessed, which seemed to be highly dependent on particular individuals and not related to proactive individuals. DF systems however reinforce the social hierarchy within the fish group, which might lead to a higher competitiveness for resources among fishes, increasing the social hierarchy, and therefore, the stress. The findings of this study provide valuable information to the industry for the management of fish stress and welfare under production conditions at social and individual level.info:eu-repo/semantics/acceptedVersio