Trout

Measuring cortisol, the major stress hormone in fishes

Stress in teleosts is an increasingly studied topic because of its interaction with growth, reproduction, immune system and ultimately fitness of the animal. Whether it is for evaluating welfare in aquaculture, adaptive capacities in fish ecology, or to investigate effects...

Year Published: 2019Topics: Biological Sampling & Physiological MeasurementAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: McKenzie, D. J., Sadoul, B., Geffroy, B. 2019. Measuring cortisol, the major stress hormone in fishes. Journal of Fish Biology 94(4), 540-555.

Ethical considerations in fish research

In this review, we focus primarily on the refinement of common methods used in fish research based on emerging knowledge with the aim of improving the welfare of fish used in scientific studies. We consider the use of anaesthetics and...

Year Published: 2019Topics: Analgesia, Anesthesia & Sedation, Husbandry & ManagementAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Sloman, K, A., Bouyoucos, I. A., Brooks, E. J. et al. 2019. Ethical considerations in fish research. Journal of Fish Biology 94(4), 556-577.

Structural complexity in the hatchery rearing environment affects activity, resting metabolic rate and post-release behaviour in brown trout Salmo trutta

The effects of structural enrichment in the hatchery rearing environment of brown trout Salmo trutta was linked to post-release performance. Enrichment resulted in reduced swimming activity scored in an open field test and reduced movement in a natural river after...

Year Published: 2019Topics: Environmental Enrichment, Relocation & TransportAnimal Type: Fish, Trout

Citation: Watz, J. 2019. Structural complexity in the hatchery rearing environment affects activity, resting metabolic rate and post-release behaviour in brown trout Salmo trutta. Journal of Fish Biology 95(2), 638-641.

The controversy on fish pain: A veterinarian’s perspective

Fish welfare is still a relatively new field. As such, regulations and protocols to ensure fish welfare are currently limited and vary considerably in different jurisdictions. This is in part because of the ongoing controversy as to whether or not...

Year Published: 2019Topics: Analgesia, Natural Behavior, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Chatigny, F. 2019. The controversy on fish pain: A veterinarian's perspective. Journal of Applied Animal Welfare Science 22(4), 400-410.

Current issues in fish welfare

In common with all vertebrates, fish respond to environmental challenges with a series of adaptive neuro‐endocrine adjustments that are collectively termed the stress response. These in turn induce reversible metabolic and behavioural changes that make the fish better able to...

Year Published: 2006Topics: Husbandry & Management, Natural BehaviorAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Huntingford, F. A., Adams, C., Braithwaite, V. A. et al. 2006. Current issues in fish welfare. Journal of Fish Biology 68(2), 332-372.

Fish Welfare

Fish have the same stress response and powers of nociception as mammals. Their behavioural responses to a variety of situations suggest a considerable ability for higher level neural processing – a level of consciousness equivalent perhaps to that attributed to...

Year Published: 2008Topics: Emotion, Pain, & Sentience, Relocation & Transport, Stocking Density, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Branson, E. J. (Ed.) 2008. Fish Welfare. Blackwell Publishing Ltd: Oxford, UK, 300 p.

Evaluation of tissue changes following intramuscular infiltration of lidocaine in rainbow trout Oncorhynchus mykiss

Rainbow trout Oncorhynchus mykiss were infiltrated with either saline or lidocaine adjacent to the dorsal fin to assess histopathological changes. Infiltration was done as if it were being used as a local anaesthetic. Tissue lesions and associated tissue healing were...

Year Published: 2018Topics: Anesthesia & Sedation, Drug/Substance AdministrationAnimal Type: Fish, Trout

Citation: Chatigny, F., Groman, D. B., Martinson, S. A. et al. 2018. Evaluation of tissue changes following intramuscular infiltration of lidocaine in rainbow trout Oncorhynchus mykiss. Journal of Fish Biology 92(4), 888-900.

The effect of rearing structures on behaviour and movement of juvenile steelhead Oncorhynchus mykiss

The relative movement of juvenile steelhead Oncorhynchus mykiss reared on two treatments was investigated to provide insight on the effect of structure in the rearing environment on the behaviour of the fish before potential release into a natural river system....

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

Citation: Self, K. E., Schreck, C. B., Cogliati, K. M. et al. 2018. The effect of rearing structures on behaviour and movement of juvenile steelhead Oncorhynchus mykiss. Journal of Fish Biology 93(3), 449-454.

Essential Fish Biology: Diversity, Structure and Function

This book summarizes the basic features of living fish. It is introduced by a chapter on the diversity of a group which has over 30,000 species, the largest within the vertebrates, describing the classification systems used for them and the...

Year Published: 2017Topics: Natural Behavior, ReproductionAnimal Type: Fish, Other Fish, Salmon, Tilapia, Trout, Zebrafish

Citation: Burton, D., Burton, M. (Eds). 2017. Essential Fish Biology: Diversity, Structure and Function. Oxford University Press: Oxford, U.K., 448 pp.

Nontraditional laboratory animal species (cephalopods, fish, amphibians, reptiles, and birds)

Aquatic vertebrates and cephalopods, amphibians, reptiles, and birds offer unique safety and occupational health challenges for laboratory animal personnel. This paper discusses environmental, handling, and zoonotic concerns associated with these species.

Year Published: 2018Topics: HandlingAnimal Type: Amphibian, Bird, Cephalopod, Crocodile & Alligator, Finch, Fish, Fowl, Frog & Toad, Invertebrate, Lizard, Other Bird, Other Fish, Parrot, Reptile, Salamander, Salmon, Snake, Tilapia, Trout, Turtle & Tortoise, Zebrafish

Citation: O'Rourke, D. P., Baccanale, C. L., Stoskopf, M. K. 2018. Nontraditional laboratory animal species (cephalopods, fish, amphibians, reptiles, and birds). ILAR Journal 59(2), 168-176.