Funding for this research was provided by:
Japan Society for the Promotion of Science (KAKENHI 15K07529)
Article History
Received: 3 July 2020
Accepted: 4 April 2021
First Online: 22 May 2021
Declarations
:
: All the authors declare that they have no conflict of interest.
: Although the Animal Experiment Committee of the Kochi University ruled that no ethical clearance or approval of research ethics was required for this study because experimental work was conducted with an unregulated fish species, we followed all applicable institutional and/or national guidelines for the care and use of animals in this study. A minimum number of fish were used to test the hypothesis. After the experiment, fish were kept in home aquariums where they demonstrated normal conditions (e.g., unstressed body color and actively swimming).