Fish

Social behavior and welfare in Nile tilapia

Fish social behavior can be affected by artificial environments, particularly by factors that act upon species that show aggressive behavior to set social rank hierarchy. Although aggressive interactions are part of the natural behavior in fish, if constant and intense,...

Year Published: 2019Topics: Social Housing & CompanionshipAnimal Type: Fish, Tilapia

Citation: Gonçalves-de-Freitas, E., Bolognesi, M. C., dos Santos Gauy, A. C. et al. 2019. Social behavior and welfare in Nile tilapia. Fishes 4(2), 23.

Enrichment increases aggression in zebrafish

Environmental enrichment, or the enhancement of an animal's surroundings when in captivity to maximise its wellbeing, has been increasingly applied to fish species, particularly those used commercially. Laboratory species could also benefit from enrichment, but it is not always clear...

Year Published: 2019Topics: Environmental EnrichmentAnimal Type: Fish, Zebrafish

Citation: Woodward, M. A., Winder, L. A., Watt, P. J. 2019. Enrichment increases aggression in zebrafish. Fishes 4(1), 22.

Fear contagion in zebrafish: A behaviour affected by familiarity

Emotional contagion has recently been described in fish but whether it is affected by familiarity is not known. We tested whether the sight of a distressed conspecific elicited fear in zebrafish, Danio rerio, and whether this was modulated by familiarity....

Year Published: 2019Topics: Emotion, Pain, & Sentience, Husbandry & ManagementAnimal Type: Fish, Zebrafish

Citation: Silva, P. F., de Leaniz, C. G., Luchiari, A. C. 2019. Fear contagion in zebrafish: A behaviour affected by familiarity. Animal Behaviour 153, 95-103.

Positive welfare for fishes: Rationale and areas for future study

Traditional animal welfare paradigms have focused on maintaining physical health and mitigating negative impacts to wellbeing. Recently, however, the field has increasingly recognized the importance of positive welfare (i.e., mental and physical states that exceed what is necessary for immediate...

Year Published: 2019Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Fife-Cook, I., Franks, B. 2019. Positive welfare for fishes: Rationale and areas for future study. Fishes 4(2), 31.

Welfare of Cultured and Experimental Fishes

This open access book is a printed edition of the Special Issue on Welfare of Cultured and Experimental Fishes that was published in the journal Fishes. The PDF is free for download.

Year Published: 2019Topics: Environmental Enrichment, Husbandry & Management, Social Housing & Companionship, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Arechavala-Lopez, P., Saraiva, J. L. 2019. Welfare of Cultured and Experimental Fishes. Basel, Switzerland: MDPI, 132 pages.

Individuality matters for substrate-size preference in the Nile tilapia juveniles

Preference tests have usually been used to identify nonhuman animal preferences for welfare purposes (environmental enrichment), but they are mostly at the group level—that is, group preferences for resources or environmental conditions. However, a more robust method was developed to...

Year Published: 2018Topics: Environmental EnrichmentAnimal Type: Fish, Tilapia

Citation: Maia, C. M., Volpato, G. L. 2018. Individuality matters for substrate-size preference in the Nile tilapia juveniles. Journal of Applied Animal Welfare Science 21(4), 316-324.

Do fish perceive anaesthetics as aversive?

This study addresses a fundamental question in fish welfare: are the anaesthetics used for fish aversive? Despite years of routine general use of many agents, within both scientific research and aquaculture, there is a paucity of information regarding their tolerance...

Year Published: 2013Topics: Anesthesia & SedationAnimal Type: Fish, Zebrafish

Citation: Readman, G. D., Owen, S. F., Murrell, J. C. et al. 2013 Do fish perceive anaesthetics as aversive? PLOS ONE. 8(9), e73773.

Effects of familiarity on individual growth and feeding behaviour of European seabass Dicentrarchus labrax

Available literature indicates that fish are able to recognize familiar conspecifics and that familiarity may offer important benefits (e.g. more stable social environment, improved foraging behavior, growth, survival). In the practice of intensive rearing of European seabass Dicentrarchus labrax mixing...

Year Published: 2019Topics: Social Housing & CompanionshipAnimal Type: Fish, Other Fish, Zebrafish

Citation: Batzina, A., Drossos, I.-P., Karakatsouli, N. 2019. Effects of familiarity on individual growth and feeding behaviour of European seabass Dicentrarchus labrax. Applied Animal Behaviour Science 211, 112-117.

A novel emotional and cognitive approach to welfare phenotyping in rainbow trout exposed to poor water quality

Recent scientific evidence for fish sentience has stressed the need for novel sentience-based detection tools of fish welfare impairment in commercial farms. In order to mimic a well-characterised stress situation, rainbow trout (Oncorhynchus mykiss) were exposed to poor water quality...

Year Published: 2019Topics: Human-Animal Interaction, Welfare AssessmentAnimal Type: Fish, Trout

Citation: Colson, V., Mure, A., Valotaire, C. et al. 2019. A novel emotional and cognitive approach to welfare phenotyping in rainbow trout exposed to poor water quality. Applied Animal Behaviour Science 210, 103-112.

Body condition scoring for adult zebrafish (Danio rerio)

Body condition scoring (BCS) is a simple, rapid, noninvasive tool used to assess body condition in animals. In this study, we developed and validated a diagram-based BCS for adult zebrafish (Danio rerio), a popular research model. After receiving 20 min...

Year Published: 2018Topics: Welfare AssessmentAnimal Type: Fish, Zebrafish

Citation: Clark, T. S., Pandolfo, L. M., Marshall, C. M. et al. 2018. Body condition scoring for adult zebrafish (Danio rerio). JAALAS 57(6), 698–702.