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Cognitive appraisal of environmental stimuli induces emotion-like states in fish ArchiMer
Cerqueira, M.; Millot, Sandie; Castanheira, M. F.; Felix, A. S.; Silva, T.; Oliveira, G. A.; Oliveira, C. C.; Martins, C. I. M.; Oliveira, R. F..
The occurrence of emotions in non-human animals has been the focus of debate over the years. Recently, an interest in expanding this debate to non-tetrapod vertebrates and to invertebrates has emerged. Within vertebrates, the study of emotion in teleosts is particularly interesting since they represent a divergent evolutionary radiation from that of tetrapods, and thus they provide an insight into the evolution of the biological mechanisms of emotion. We report that Sea Bream exposed to stimuli that vary according to valence (positive, negative) and salience (predictable, unpredictable) exhibit different behavioural, physiological and neuromolecular states. Since according to the dimensional theory of emotion valence and salience define a two-dimensional...
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Ano: 2017 URL: http://archimer.ifremer.fr/doc/00407/51810/52416.pdf
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New developments in recirculating aquaculture systems in Europe: A perspective on environmental sustainability ArchiMer
Martins, C. I. M.; Eding, E. H.; Verdegem, M. C. J.; Heinsbroek, L. T. N.; Schneider, O.; Blancheton, Jean-paul; Roque D'Orbcastel, Emmanuelle; Verreth, J. A. J..
The dual objective of sustainable aquaculture, i.e., to produce food while sustaining natural resources is achieved only when production systems with a minimum ecological impact are used. Recirculating aquaculture systems (RASs) provide opportunities to reduce water usage and to improve waste management and nutrient recycling. RAS makes intensive fish production compatible with environmental sustainability. This review aims to summarize the most recent developments within RAS that have contributed to the environmental sustainability of the European aquaculture sector. The review first shows the ongoing expansion of RAS production by species and country in Europe. Life cycle analysis showed that feed, fish production and waste and energy are the principal...
Tipo: Text Palavras-chave: Intensive systems; Ecological impact; Waste; Water re-use; Denitrification.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00021/13190/10273.pdf
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