Salmon

Respirometer in a box: Development and use of a portable field respirometer for estimating oxygen consumption of large‐bodied fishes

Respirometry has become the standard method for measuring the metabolic rate of fishes. Traditionally, respirometry has required the fish to be kept in captivity and tested under controlled conditions; however, many species do not readily adapt to captivity, and stress...

Year Published: 2020Topics: Biological Sampling & Physiological MeasurementAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Byrnes, E. E., Lear, K. O., Morgan, D. L. et al. 2020. Respirometer in a box: Development and use of a portable field respirometer for estimating oxygen consumption of large‐bodied fishes. Journal of Fish Biology 96(4), 1045-1050.

The effect of triploidy on the performance, gut microbiome and behaviour of juvenile Atlantic salmon (Salmo salar) raised at low temperature

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...

Year Published: 2020Topics: Husbandry & ManagementAnimal Type: Fish, Salmon

Citation: Benhaïm, D., Leblanc, C. A. L., Horri, K. et al. 2020. The effect of triploidy on the performance, gut microbiome and behaviour of juvenile Atlantic salmon (Salmo salar) raised at low temperature. Applied Animal Behaviour Science 229, 105031.

Best practices for non-lethal blood sampling of fish via the caudal vasculature

Blood sampling through the caudal vasculature is a widely used technique in fish biology for investigating organismal health and physiology. In live fishes, it can provide a quick, easy and relatively non‐invasive method for obtaining a blood sample (cf ....

Year Published: 2020Topics: Biological Sampling & Physiological MeasurementAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Lawrence, M. J., Raby, G. D., Teffer, A. K. et al. 2020. Best practices for non-lethal blood sampling of fish via the caudal vasculature. Journal of Fish Biology 97(1), 4–15.

Premises for digital twins reporting on Atlantic salmon wellbeing

Many species of fish, birds and mammals commonly live in human captivity; Atlantic salmon Salmo salar is one of them. The international legal status of the welfare of captive animals is slowly developing and still requires rigorous specification. For example,...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Fish, Salmon

Citation: Giske, J., Dumitru, M. L., Enberg, K. et al. 2025. Premises for digital twins reporting on Atlantic salmon wellbeing. Behavioural Processes 226, 105163.

Editorial: Fish welfare in aquaculture and research—where are we going?

Rapid technical developments are taking place in aquaculture, and its production is increasing globally every year by more than 4%. Research is the necessary foundation for politics to define reasonable regulations and recommend guidelines for aquaculture, but also the basis...

Year Published: 2025Topics: Rearing & Weaning, Stocking Density, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Trout, Zebrafish

Citation: Pietsch, C. 2025. Editorial: Fish welfare in aquaculture and research—where are we going? Animals 15(16), 2367.

Mental Health and Well-being in Animals

Since the publication of the first edition of this book, professional and public concern for the well-being of animals has continued to increase throughout the world. Advances in research and technologies have yielded an enormous amount of new knowledge about...

Year Published: 2025Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: All/General, Baboon, Bird, Capuchin, Cat, Chicken, Chimpanzee, Crocodile & Alligator, Dog, Equine, Fish, Gibbon, Goat, Lemur, Lizard, Macaque, Marmoset, Nonhuman Primate, Other Animal, Other Nonhuman Primate, Owl Monkey, Parrot, Pig, Rabbit, Reptile, Salmon, Sheep, Snake, Squirrel Monkey, Trout, Turtle & Tortoise, Vervet (African Green Monkey)

Citation: McMillan, F. D. (Ed.) 2025. Mental Health and Well-being in Animals (3rd ed.). CAB International, Oxfordshire, UK. 464 p.

An adaptable, user-friendly score sheet to monitor welfare in experimental fish

Fish are increasingly used as experimental animals across research fields. Currently, around a quarter of all experimental animals used are fish. Less than 20% of these are standard model species. Welfare assessments for experimental fish are in their infancy compared...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Shark & Ray, Tilapia, Trout, Zebrafish

Citation: Flueck-Giraud, M., Schmidt-Posthaus, H., Bergadano, A. et al. 2025. An adaptable, user-friendly score sheet to monitor welfare in experimental fish. Laboratory Animals 59(2), 226–241.

Early-life environmental enrichment promotes positive animal welfare for juvenile Atlantic salmon (Salmo salar) in aquaculture research (2025)

Early life experiences have long-lasting effects on behaviour and physiology, influencing development of adaptive natural behaviours. Enriching farmed environments encourages expression of natural behaviours in captive fish, promoting positive animal welfare, important for conducting valid and reproducible research and informing...

Year Published: 2025Topics: Environmental EnrichmentAnimal Type: Fish, Salmon

Citation: Prentice, P. M., Chivite Alcalde, M., Císař, P. et al. 2025. Early-life environmental enrichment promotes positive animal welfare for juvenile Atlantic salmon (Salmo salar) in aquaculture research. Scientific Reports 15(1), 5828.

Acute effect of short-term benzocaine anesthesia on the skin mucus microbiome of Atlantic salmon (Salmo salar)

Routine aquaculture practices such as capture, transportation, and handling can disrupt the relationship between commensal and opportunistic bacteria in the fish skin microbiome. Anesthetic baths are a common welfare practice in aquaculture to reduce stress during handling. However, to date,...

Year Published: 2025Topics: Anesthesia & SedationAnimal Type: Fish, Salmon

Citation: Martins, P., Pimentel, T., Ribeiro, N. et al. 2025. Acute effect of short-term benzocaine anesthesia on the skin mucus microbiome of Atlantic salmon (Salmo salar). Animals 15(11), 1566.

The effects of different feed ration levels on growth, welfare rating, and early maturation in juvenile Atlantic salmon (Salmo salar)

To investigate the possible effect of different feed ration levels on the growth, welfare, and early maturation of juvenile Atlantic salmon, 450 salmon parr with a mean (±standard error) initial weight of 51.6 g (±0.8) were reared in triplicate under...

Year Published: 2024Topics: Husbandry & ManagementAnimal Type: Fish, Salmon

Citation: Imsland, A. K. D., Methúsalemsson, H. 2024. The effects of different feed ration levels on growth, welfare rating, and early maturation in juvenile Atlantic salmon (Salmo salar). Fishes 9(2), 70.