Summary
The contents of serotonin (5 HT) and its metabolite 5 hydroxy indoleacetic acid (5 HIAA) have been measured (HPLC technique) in the brains of eels exposed to different conditions of hydrostatic pressure and temperature (HP=1 or 101 ATA in winter, Tw=14°C, and in summer, Tw=19°C). It appears that an increase of Tw induces a significant increase of the 5 HT/5 HIAA ratio. In contrast, eels exposed at 101 ATA of HP for 1 h do not exhibit any modification in the 5 HT/5 HIAA brain ratio at a given temperature. The involvement of 5 HT under the conditions studied is discussed.
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Sebert, P., Barthelemy, L. & Caroff, J. Serotonin levels in fish brain: Effects of hydrostatic pressure and water temperature. Experientia 41, 1429–1430 (1985). https://doi.org/10.1007/BF01950018
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DOI: https://doi.org/10.1007/BF01950018