Other Fish

Understanding behaviour to improve the welfare of an ornamental fish

Some common practices in aquaculture, ornamental trade and fish facilities may disturb the behavioural repertoire of fish and its natural adaptive value, reducing welfare and impairing fish production. Hence, it is necessary to understand fish behaviour, as well as the...

Year Published: 2021Topics: Environmental Enrichment, Natural BehaviorAnimal Type: Fish, Other Fish

Citation: Brandão, M. L., Dorigão-Guimarães, F., Bolognesi, M. C. et al. 2021. Understanding behaviour to improve the welfare of an ornamental fish. Journal of Fish Biology 99(3), 726-739.

Goal-oriented behavioural and environmental enrichment in aquarium species

Environmental enrichment is a common tool used in zoo and aquarium settings to provide mental and physical stimulation to animals under human care. This paper aims to present a primary approach to goal-oriented environmental and behavioural enrichment following a simplified...

Year Published: 2021Topics: Environmental EnrichmentAnimal Type: Amphibian, Cephalopod, Crustacean, Fish, Frog & Toad, Invertebrate, Other Fish, Reptile, Salamander, Shark & Ray, Turtle & Tortoise

Citation: Monreal-Pawlowsky, T., Vaicekauskaitė , R., Palencia Membrive, G. et al. 2021. Goal-oriented behavioural and environmental enrichment in aquarium species. Journal of Zoo and Aquarium Research, 9(4), 273-280.

Automatic recognition of fish behavior with a fusion of RGB and optical flow data based on deep learning

The rapid and precise recognition of fish behavior is critical in perceiving health and welfare by allowing farmers to make informed management decisions on recirculating aquaculture systems while reducing labor. The conventional recognition methods are to obtain movement information by...

Year Published: 2021Topics: Welfare AssessmentAnimal Type: Fish, Other Fish

Citation: Wang, G., Muhammad, A., Liu, C. et al. 2021. Automatic recognition of fish behavior with a fusion of RGB and optical flow data based on deep learning. Animals 11(10), 2774.

Proof of concept: Visual categorization of carotenoid pigmentation in Arctic charr (Salvelinus alpinus L) can predict stress response

Carotenoid pigmentation in Salvelinus alpinus has been connected to stress responsiveness in earlier studies. This has, however, only been tested with time-consuming image analysis from photos. Here, we used quick visual categorization of carotenoid pigmentation to investigate the stress responsiveness...

Year Published: 2021Topics: Welfare AssessmentAnimal Type: Fish, Other Fish

Citation: Backström, T., Brännäs, E., Nilsson, J. et al. 2021. Proof of concept: Visual categorization of carotenoid pigmentation in Arctic charr (Salvelinus alpinus L) can predict stress response. Journal of Fish Biology 98(4), 1192-1195.

Using individual-specific conditioning to reduce stereotypic behaviours: A study on smooth dogfish Mustelus canis in captivity

Despite how frequently stereotypic behaviours are discussed in the field of animal behaviour and welfare, research on stereotypies in captive elasmobranchs is far less represented in the literature compared to studies on mammalian species. This is particularly unfortunate as aquatic...

Year Published: 2021Topics: Abnormal/Problematic Behavior, Husbandry & ManagementAnimal Type: Fish, Other Fish

Citation: Hart, A., Reynolds, Z., Troxell-Smith, S. 2021. Using individual-specific conditioning to reduce stereotypic behaviours: A study on smooth dogfish Mustelus canis in captivity. Journal of Zoo and Aquarium Research, 9(3), 193-199.

Clarification of early end-points for refinement of animal experiments, with specific reference to fish

Appropriate end-points are integral to the refinement of laboratory animal experiments. Our recent experience has highlighted that ambiguity around end-points is hampering their adoption in experiments that cause severe suffering to fish. In toxicology, the term endpoint (single word) refers...

Year Published: 2021Topics: Humane Endpoint, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Ellis, T., Katsiadaki, I. 2021. Clarification of early end-points for refinement of animal experiments, with specific reference to fish. Laboratory Animals 55(3), 244-253.

Environmental salinity modifies mucus exudation and energy use in European sea bass juveniles

Changes in skin mucus production and composition offer a new means to study how fish cope with changes in the environment. We explored the utility of skin mucus as an indicator of physiological responses and energy use in a reference...

Year Published: 2021Topics: Biological Sampling & Physiological MeasurementAnimal Type: Fish, Other Fish

Citation: Ordóñez-Grande, B., Guerreiro, P. M., Sanahuja, I. et al. 2021. Environmental salinity modifies mucus exudation and energy use in European sea bass juveniles. Animals 11(6), 1580.

A comparative study on two territorial fishes: The influence of physical enrichment on aggressive behavior

Intraspecific aggression is detrimental to body/fin damage, physiological stress, and other problems in aquaculture. Environmental enrichment has been proposed to have positive effects on fish aggressive behavior, physiological stress, and fish welfare, but there are mixed results. Here, we examine...

Year Published: 2021Topics: Environmental EnrichmentAnimal Type: Fish, Other Fish

Citation: Zhang, Z., Fu, Y., Zhang, Z. et al. 2021. A comparative study on two territorial fishes: The influence of physical enrichment on aggressive behavior. Animals 11(7), 1868.

Housing, husbandry and welfare of a “classic” fish model, the paradise fish (Macropodus opercularis)

Thanks to its small size, external fertilization and fecundity, over the past four decades, zebrafish (Danio rerio) has become the dominant fish model species in biological and biomedical research. Multiple lines of evidence, however, suggest that the reliance on only...

Year Published: 2021Topics: Housing, Husbandry & ManagementAnimal Type: Fish, Other Fish

Citation: Rácz, A., Adorján, G., Fodor, E. et al. 2021. Housing, husbandry and welfare of a “classic” fish model, the paradise fish (Macropodus opercularis). Animals 11(3), 786.

The lack of light-dark and feeding-fasting cycles alters temporal events in the goldfish (Carassius auratus) stress axis

Vertebrates possess circadian clocks, driven by transcriptional–translational loops of clock genes, to orchestrate anticipatory physiological adaptations to cyclic environmental changes. This work aims to investigate how the absence of a light-dark cycle and a feeding schedule impacts the oscillators in...

Year Published: 2021Topics: Husbandry & ManagementAnimal Type: Fish, Other Fish

Citation: Saiz, N., Gómez-Boronat, M., De Pedro, N. et al. 2021. The lack of light-dark and feeding-fasting cycles alters temporal events in the goldfish (Carassius auratus) stress axis. Animals 11(3), 669.