Zebrafish. This small little fish is a vertebrate, and a relatively complex one at that. Looking at all the major neurotransmitters and hormones that are investigated in neuroscience, they are as good of a model as many mammalian species. Indeed, recent studies have shown how they are ideal for testing in behavioral domains such as anxiety, sociality, sleep, reward, and cognition.
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Topics: EthoVision XT, mice, Video tracking, The Observer XT, fish, drosophila, zebrafish, DanioVision, Track3D, Tracking insects, Animal 3D tracking, open field test, CatWalk XT, PhenoTyper, T-maze, bottom dwelling, top 10, neuroscience, SfN
Often in animal research, animals with a certain genetic alteration are compared to a “wild-type” (this being the ‘normal’ rat, mouse, or zebrafish). One might assume that there is no difference between one wild-type animal and the next, but in fact, many different strains of wild-type animals are used.
Many wild-type zebrafish strains
The same is true for zebrafish. Many studies talk of wild-type animals, but the strain is not always mentioned. Furthermore, wild-type fish can be acquired at the pet shop, from a commercial scientific supplier, or simply caught in the wild. Vignet et al. noticed that there have been reports of differences in behavior between wild-type strains, and therefore they stress the importance of matching the most appropriate strain to the behavioral test.
Topics: EthoVision XT, Video tracking, fish, zebrafish, exploratory behavior, learning and memory, anxiety research, circadian rhytmicity, T-maze, color discrimination, novel tank test, light/dark challenge, bottom dwelling