Koi (Cyprinus rubrofuscus) Seek Out Tactile Interaction with Humans: General Patterns and Individual Differences
Contributor(s):: Fife-Cook, I., Franks, B.
The study of human-animal interactions has provided insights into the welfare of many species. To date, however, research has largely focused on human relationships with captive mammals, with relatively little exploration of interactions between humans and other vertebrates, despite non-mammals...
Influence of social status on growth performance, reproductive success and sperm quality of the African cichlid Aulonocara nyassae
Contributor(s):: Silva, Walisson de Souza, Gonçalves-Júnior, Lucas Pedro, Henry, Marc Roger Jean Marie, Ferreira, André Lima, Torres, Isabela Fernanda Araújo, Neves, Luanna do Carmo, Ferreira, Nathalia Soares, Luz, Ronald Kennedy
Juvenile Nile Tilapia Fish Avoid Red Shelters
Contributor(s):: Maia, Caroline Marques, Alves, Nina Pacheco Capelini, Tatemoto, Patricia
Artificial Neural Network (ANN) as a Tool to Reduce Human-Animal Interaction Improves Senegalese Sole Production
Contributor(s):: Martínez-Vázquez, J. M., Valcarce, D. G., Riesco, M. F., Sanz Marco, V., Matsuoka, M., Robles, V.
Behavioural fever, fish welfare and what farmers and fishers know
Contributor(s):: Huntingford, Felicity, Rey, Sonia, Quaggiotto, Maria-Martina
In this article we first describe briefly how, like other ectotherms, wild fish promote effective functioning (for example, digestion and reproductive maturation) by moving through the temperature gradients that they experience in their natural habitats (showing behavioural thermoregulation). We...
Effect of water temperature on aggressiveness and physiological parameters of juvenile matrinxã, Brycon amazonicus (Spix and Agassiz, 1829)
Contributor(s):: Ferreira, Juliana do N., de Barros, Igor B. A., Carvalho, Thaís B.
The matrinxã (Brycon amazonicus) is one of the species with the greatest rates of commercialization in the Amazon region, however, it has a high frequency of aggressiveness and cannibalism, and these traits are considered a major obstacle to the aquaculture sector. Environmental factors (e.g.,...
Stress coping styles: Is the basal level of stress physiological indicators linked to behaviour of sea bream?
Contributor(s):: Alfonso, Sebastien, Zupa, Walter, Manfrin, Amedeo, Fiocchi, Eleonora, Spedicato, Maria Teresa, Lembo, Giuseppe, Carbonara, Pierluigi
Stress coping style (SCS) is defined as a coherent set of individual physiological and behavioural differences in stress responses that are consistent across context and over time. SCS in fish has been studied, including because it has direct implications for aquaculture productivity and welfare....
Behavioural variation among divergent European and North American farmed and wild Atlantic salmon (Salmo salar) populations
Contributor(s):: Islam, Shahinur S., Wringe, Brendan F., Bradbury, Ian R., Fleming, Ian A.
Animals often display consistent differences in behaviours across situations and contexts. However, little is known about how behavioural traits might vary in a context-dependent manner, with selection favouring correlated sets of behaviours in particular types of environments. Comparative...
Using acoustic telemetry to assess behavioral responses to acute hypoxia and ammonia exposure in farmed rainbow trout of different competitive ability
Contributor(s):: Gesto, Manuel, Zupa, Walter, Alfonso, Sébastien, Spedicato, Maria Teresa, Lembo, Giuseppe, Carbonara, Pierluigi
As other vertebrates, fish differ on an individual basis in their responses to disturbance (i.e. stress) and in their capacity for adaptation to environmental change. This individual stress-coping style (SCS) might have an impact on the individual welfare in aquaculture facilities. However, most...
Linking coping styles and enzymatic activity of energy metabolism in the wedge sole (Dicologlossa cuneata)
Contributor(s):: De la Roca, Elena, Sánchez, Beatríz, López, Juan Manuel, Herves, María Antonia, Canalejo, Antonio, Herrera, Marcelino
Knowledge of individual behavioural variations (coping styles) can be a very useful tool for aquaculture, since it could allow to adapt the culture conditions to the different behavioural traits and, thus, to reduce the stress in the fish getting in this way a better production. The objective of...
The effect of triploidy on the performance, gut microbiome and behaviour of juvenile Atlantic salmon (Salmo salar) raised at low temperature
Contributor(s):: Benhaïm, David, Leblanc, Camille A. L., Horri, Khaled, Mannion, Krystal, Galloway, Michael, Leeper, Alexandra, Knobloch, Stephen, Sigurgeirsson, Ólafur, Thorarensen, Helgi
Triploid Atlantic salmon (Salmo salar) aquaculture has been extensively considered for many years, but its development has so far remained very limited. This is mostly due to poorer farming performances of triploid fish (3 N) in comparison with their diploid (2 N) counterparts, with temperature...
The time budget of Atlantic salmon (Salmo salar) held in enriched tanks
Contributor(s):: Nordgreen, J., Bjørge, M. H., Janczak, A. M., Hovland, A. L., Moe, R. O., Ranheim, B., Horsberg, T. E.
In order to understand the impact of different experimental and husbandry procedures on fish, and ensure that the behavioural and physiological needs of fish used in research are met, it is necessary to have detailed knowledge of their behaviour. This knowledge is largely lacking for Atlantic...
Linking risk taking and the behavioral and metabolic responses to confinement stress in gilthead seabream Sparus aurata
Contributor(s):: Herrera, Marcelino, Castanheira, Maria Filipa, Conceição, Luis E. C., Martins, Catarina I.
Risk taking and avoidance responses during confinement have been identified in a variety of species, including fish. In addition, differences in metabolic rate have also been attributed to divergent personalities, coping styles or behavioral types. In this study we disclose for the first time a...
The effect of morphine on changes in behaviour and physiology in intraperitoneally vaccinated Atlantic salmon (Salmo salar)
Contributor(s):: Nordgreen, Janicke, Bjørge, Mette Helen, Janczak, Andrew M., Poppe, Trygve, Koppang, Erling Olaf, Ranheim, Birgit, Horsberg, Tor Einar
Granulomatous peritonitis is often induced by intraperitoneal vaccination in fish. Peritonitis is a very painful condition in mammals, but little is known about how fish experience this condition. In a previous experiment we found increased latency to eat and a tendency to decreased swimming...
Aggressiveness and locomotion activity related to hatching time in Matrinxã, Brycon amazonicus (Spix and Agassiz, 1829)
Contributor(s):: de Souza, Ellen Cristina M., da Silva, Jaquelinne P., Villacorta-Correa, Marle Angélica, Carvalho, Thaís B.
Since agonistic interaction has been a major obstacle for fish hatchery and represents great economic losses for fish farmers, aggressiveness during the different post-hatching stages of the matrinxã, Brycon amazonicus, is analyzed and compared. Each group of three larvae was observed at six...
Using rainbow trout Oncorhynchus mykiss as self-feeding actuators for white-spotted charr Salvelinus leucomaenis: Implications for production and welfare
Contributor(s):: Noble, Chris, Flood, Matthew James, Tabata, Mitsuo
Self-feeding systems, where fish actuate a trigger to obtain food, can be a useful feed management tool for aquaculture. However, some species such as the white-spotted charr Salvelinus leucomaenis can be poor self-feeders. The current experiment evaluated the production and welfare effects of...
Social network analysis of the behavioural interactions that influence the development of fin damage in Atlantic salmon parr (Salmo salar) held at different stocking densities
Contributor(s):: Cañon Jones, Hernán Alberto, Noble, Chris, Damsgård, Børge, Pearce, Gareth P.
Social network analysis of behavioural interactions was used to quantify the effect of high (HD, 30kgm−3) and low (LD, 8kgm−3) stocking densities on the frequency and severity of fin damage in Atlantic salmon. Dorsal fin damage (erosion, splits, fin index) was significantly higher in HD compared...
Same-sized fish groups increase aggressive interaction of sex-reversed males Nile tilapia GIFT strain
Contributor(s):: Boscolo, Camila Nomura Pereira, Morais, Rosana Nogueira, Gonçalves-de-Freitas, Eliane
Animals with similar fighting ability can fight harder and longer than animals in asymmetric contests. Thus, the selection of fish by size similarity in husbandry might increase aggressive interactions, and lead to social instability in socially organized fish. We tested the hypothesis that...
Preference for structured environment in zebrafish (Danio rerio) and checker barbs (Puntius oligolepis)
Contributor(s):: Kistler, Claudia, Hegglin, Daniel, Würbel, Hanno, König, Barbara
Information about the welfare and husbandry of pet and laboratory fish is scarce although millions of fish are sold in pet shops and used in laboratory research every year. Inadequate housing conditions can cause behavioural problems also in fish since they are complex animals with sophisticated...
Measuring motivation in a cichlid fish: An adaptation of the push-door paradigm
Contributor(s):: Galhardo, Leonor, Almeida, Olinda, Oliveira, Rui F.
Recent behavioural, cognitive and neurophysiological studies strongly suggest that fish are capable of psychological experiences. Therefore, identifying needs from the animals’ point of view is likely to be one of the best approaches to understand their welfare. Motivational tests, as a measure...