Development of Open-Field Behaviour in the Medaka, Oryzias latipes.

ABSTRACT: The use of juvenile and larval fish models has been growing in importance for several fields. Accordingly, the evaluation of behavioural tests that can be applied to larvae and juveniles is becoming increasingly important. We tested medaka at four different ages (1, 10, 30, and 120 dph) in the open field test, one of the most commonly used behavioural assays, to investigate its suitability for larvae and juveniles of this species. We also explored ontogenetic variation in behaviour during this test. On average, adult 120-day-old medaka showed higher locomotor activity in terms of distance moved compared with younger fish. Our analysis suggests that this effect was derived from both quantitative changes in locomotion related to the ontogenetic increase in fish size as well as qualitative ch

SUBMITTER: Lucon-Xiccato T 

PROVIDER: S-EPMC7696969 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature