Subject	Marine Biology
Specific subject area	Evaluation of the stress-reducing effect of ocean water on marine teleost
Type of data	Table Graph Figure
How the data were acquired	Enzyme-linked immunosorbent assay (ELISA)
Data format	Raw
Description of data collection	The nibbler fish Girella punctata, which had been maintained under a low-density condition with surface seawater (SSW), were exposed to a high-density condition. During stress exposure, the fish were reared in SSW or deep ocean water (DOW).
	Blood was obtained from the caudal vessels of the fish on days 0, 5, and 10 after exposure to high-density stress. The obtained blood samples were centrifuged at 5200 × g for 5 min to obtain the plasma samples. The cortisol concentrations in the prepared plasma samples were determined using an enzyme-linked immunosorbent assay.
Data source location	Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University Noto-cho, Ogi, Japan
Data accessibility	With the article
Related research article	T. Ikari, Y. Furusawa, Y. Tabuchi, Y. Maruyama, A. Hattori, Y. Kitani, K. Toyota, A. Nagami, J. Hirayama, K. Watanabe, A. Shigematsu, M.A. Rafiuddin, S. Ogiso, K. Fukushi, K. Kuroda, K. Hatano, T. Sekiguchi, R. Kawashima, A.K. Srivastav, T. Nishiuchi, A. Sakatoku, M.A. Yoshida, H. Matsubara, N. Suzuki, Kynurenine promotes Calcitonin secretion and reduces cortisol in the Japanese flounder Paralichthys olivaceus, Sci. Rep. 13(1) (2023) 8700. https://doi.org/10.1038/s41598-023-35222-4.